ess temperatures between 450° and 550° C. Like most of the propylene-ammonia processes, SNAM obtains oxygen from air. The feed stream consists of 1 mole of ammonia and 1.5 moles of air per mole of propylene. The main by-products are acetonitrile and HCN. Small amounts of acetone, acrolein, carbon monoxide, and acetaldehyde are also formed. The distillation train following reaction is geared to recover fiber-grade acrylonitrile. Fiber-grade acrylonitrile, high-purity acetonitrile, and HCN are recovered by extraction distillation, according to SNAM. The pilot plant has a capacity of 110 lb. per day of acrylonitrile. Located at Milan, the unit has been operated since early 1963. Logical. The backward step to captive acrylonitrile production is a logical move for ENI, SNAM's parent company. The firm's mode of operation in recent years has been to integrate both forward and backward. In 1962, ENI gained control of Lanerossi, a textile company with eight factories near Vicenza. Another factory is being built at Foggia. It will soon have facilities for spinning acrylic fibers at a plant at Pisticci. The fiber plant uses a Japanese process based on nitric acid as a polyacrylonitrile solvent. ENFs acrylonitrile plant will be another in a series of developments in Europe that seem certain to draw the land-office business for U.S. exports of the material to a close. U.S. exports of the versatile chemical building block should near 200 million lb. this year. The bulk of this will find customers in western Europe. Erdoelchemie, the joint venture of Farbenfabriken Bayer and British Petroleum, said recently that it would build a second acrylonitrile plant at Dormagen, near Cologne. This will bring the planned and existing acrylonitrile capacity in Europe to 440 million lb. from its present level of about 75 million lb. Erdoelchemie has a 55 million lb.-per-year acrylonitrile plant at Dormagen set for startup in 1965 based on a Bayer-patented route using propylene and ammonia. Its new unit will use the Sohio process. The firm gives no reason for the switch. Patents on the SNAM process have been applied for in most of the industrial countries of the world. Belgian patent 643909 has already issued.
Phillips Offers Vulcanizable Polyethylene High-density polymers contain butadiene and a 1-olefin, and can be vulcanized with sulfur Vulcanizable high-density polyethylene has been developed by a group of research chemists at Phillips Petroleum. The materials are copolymers of ethylene and 0.1 to 0.5% butadiene, or terpolymers with a 1-olefin as the third component. Terpolymers with 5 to 10% 1-olefin are made for uses requiring lower hardness and more elongation than the copolymer has. At present, Phillips offers developmental quantities of the vulcanizable poly ethylenes. If demand develops for them, facilities can be converted to produce the polymers in commercial volume. Phillips has disclosed no details of the polymerization processes. The polymers can be vulcanized to a cross-linked product with sulfur and conventional accelerators used in rubber vulcanization. The product retains the hardness, crystallinity, solvent resistance, and abrasion resistance of high-density polyethylene and gains improved toughness and high-temperature performance of a cross-linked polymer, Dr. J. E. Pritchard of Phillips told the Southwest Regional Meeting of the American Chemical Society in Shreveport, La. The ethylene/butadiene polymers contain both trans and vinyl unsaturation, according to Dr. Pritchard and co-workers F. W. Bailey. and D. R. Witt. Trans unsaturation varies directly with the butadiene content of the polymer. This indicates that 1,4 addition of the butadiene predominates. Vinyl unsaturation depends slightly on butadiene content. It increases as polymer molecular weight
decreases—just as in other Phillips poly ethylenes. Significant. Copolymerization of ethylene and butadiene could have a big impact on the polyethylene industry. It could have an impact comparable to the discovery of copolymerization of isoprene with isobutylene which led to butyl rubber, according to Dr. James A. Reid, manager of Phillips' research division. Such a polymerization is especially novel because attempts to use butadiene as a "minor" comonomer generally have proved unsuccessful. Butadiene doesn't make a satisfactory butyl rubber when copolymerized with isobutylene, for example. In addition, no one apparently has succeeded in using butadiene to make a vulcanizable ethylene-propylene rubber. For ethylene-propylene rubbers, more expensive dienes such as dicyclopentadiene or 1,5-hexadiene are used to give a cross-linked product. Cross-linked polyethylenes have been available for some time for uses such as pipe, structural forms, and wire and cable coverings. These uses require a polyethylene that resists cracking well and does not flow above the normal melting point. To crosslink conventional polyethylenes, a peroxide is added which decomposes on heating during the cure. Properties. When vulcanized, the unsaturated polyethylenes develop levels of physical properties possible in very high-molecular-weight resins, Dr. Pritchard says. For example, a terpolymer of ethylene, butadiene, and 1-butène with an original melt index of 0.17 has stress-strain properties and
Terpolymer Shows How Vulcanizing Affects Stress-Strain Relationship Ethylene, 1-butène, butadiene terpolymer After vulcanizing
D a f n r o \/ι ιΙ/*οηΪ7Ϊη«Ί Before vulcanizing
4000 r .-:3000
Q.
:£2000 c •"lOOO 0
ΓΊΓΊ 100
j
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... 1 1 1.J 100
200
300
400
196 4 C & E N
47
% Elongation
DEC.
14,
Aerosol Packager Develops Terpolymer for Hair Sprays
EXAMINE CURVES. Phillips scientists D. R. Witt, Dr. J. E. Pritchard, and F. W. Bailey examine the stress-strain curve of a vulcanized polyethylene and compare it with the curve of an unvulcanized polyethylene
toughness after cure exceeding those of a conventional high-molecularweight ethylene-butene copolymer with a 10X melt index or a high load melt index of 2. Vulcanization increases elongation 30% to more than 300% as it adds toughness to the polymer. Generally, a polyethylene vulcanizate with maximum elongation results from a polymer with the lowest melt index (highest molecular weight). A terpolymer containing 1-butène or 1-hexene will give more elongation for a given melt index, though with some loss in hardness. Vulcanized high-density polyethylene resins are comparable to peroxidecured, low-density polyethylene resins in elongation, stress-cracking resistance, and dielectric strength. The high-density vulcanized products are superior in tensile strength, hardness, Vicat softening point, temperature of heat distortion, and resistance to swelling by solvents. Insulation resistance of the high-density resin is lower than for low-density resin, and dielectric constant and dissipation factor are higher, but over-all, electrical properties are good. High levels of fillers, such as carbon black, are practical for compounding the vulcanizable poly ethylenes, Dr. Pritchard says. For example, 25 parts of furnace black per 100 parts of resin 48
C&EN
DEC.
14,
1964
increases tensile strength by 1 5 % ; while elongation (32%) remains in a useful range. Curing. Sulfur (1.5 parts) and conventional accelerators are used to vulcanize the new polyethylenes. The vinyl unsaturation joins in the vulcanization reaction, according to infrared studies of the disappearance of unsaturation with time. On the other hand, ethylene polymers with only vinyl unsaturation have very low, if any, cure when evaluated with sulfur and accelerator systems. A steady-state level of trans unsaturation is reached at different times depending on temperature of vulcanization. At 350° F., the steady state is reached in about 50 min. curing; at 400° F., in about 20 min. At temperatures around 425° F., virtually all unsaturation disappears within 10 min. Gel times for a given curing system decrease rapidly with increasing unsaturation. Gel time, or the induction time of the cure reaction, is defined as the time needed for a sharp increase in extrusion pressure to occur during a simulated processing step at 160° C. These results are evidence that the trans double bonds participate in the vulcanization reaction. It also shows that a high level of processing safety is possible in handling vulcanizable polyethylenes.
A terpolymer for hair sprays has been developed by aerosol packager G. Barr Co., of Niles, 111. The company, a division of Pittsburgh Railways Co., calls its terpolymer VEM-640. It contains ester, pyrrolidone, and carboxylic groups randomly distributed throughout the molecule, according to Morris J. Root of Barr. Mr. Root told of the terpolymer at a meeting of the Toilet Goods Association in New York City, but he gave no details on the monomers, since a patent has not yet been issued. According to Mr. Root, the ester groups improve VEM-640's alcohol and propellent solubility. The pyrrolidone group gives it hair substantivity and water solubility. The carboxyl group makes it possible to adjust water solubility by controlling the degree of neutralization. The carboxylic group also permits introduction of polar hydroxyl groups by partial neutralization with an amine such as 2-amino-2-methyl-l,3-propanediol (AMPD) to improve water and alcohol solubility. Aerosol hair sprays are a small market for a number of resins. A typical aerosol formula contains about 2% of a resin such as polyvinyl pyrrolidone. This year's hair spray sales will be almost 300 million units with contents averaging about 10 oz. On this basis, total market for hair spray resins is only about 3.5 to 4 million lb. per year. Properties of the terpolymer resin favoring its use in hair spray are its hardness, high luster, resistance to tackiness in high humidity, and good solubility in anhydrous ethanol, the company says. A hard resin holds hair in place yet permits combing, since the resin breaks as the comb is pulled through. The resin's alcohol solubility assures that partial neutralization by the amine will proceed evenly on each resin molecule while in alcoholic solution. Thus, atmospheric moisture pickup of the resin on the hair can be minimized, though the resin remains completely soluble in wash water, Barr says. In this country, Barr offers the terpolymer chiefly for private label hair spray formulations packed at the Niles, 111., plant. A solution of the resin (40% by weight) in ethyl alcohol is available to aerosol formulators overseas.
The aromatic that exits on cue ι Ranges
SOLVESSO 100 I
280 2 8 4 + +
SOLVESSO I XYLENE
230/232 | φ
200
SOLVES!
250
300
350
INITIAL BOILING POINT
400
Controlled evaporation of Solvesso® 150 improves gloss, makes baking time more uniform. When aromatics evaporate too fast, you're likely to get orange peel . . . too slowly, and you risk sag and reduced through-put. Esso aromatics provide controlled evaporation for high gloss and consistent baking time. You'll see why when you use Solvesso 100 or 150. The high level of aromatics and their purity provide freedom from bake problems frequently occurring with less carefully made solvents. You'll also notice the high quality of Esso aromatics in their exceptional color stability. Want to see how your finishes can be improved by high-quality aromatics? Se lect from the volatilities chart at left, showing helpful data on our complete line — Solvesso 100 and 150, Solvesso Xylene and Solvesso Toluene. Or we'll be glad to recommend the one that best solves your problem. Just call our local Sales Repre sentative, or write to our Solvents Sales Department in Houston, Texas.
HUMBLE . .AMERICA'S LEADING ENERGY COMPANY.
.FIRST IN RESOURCES / FIRST IN CAPABILITY
OIL & REFINING COMPANY
C &ΕΝ
49
ARL Offers Low-Cost Analyzer
Advances Limits of Polarography 100X!
A low-cost microprobe analyzer—basic price $29,500—is now being sold by Applied Research Laboratories, Inc., (Glendale, Calif.). According to the company, the basic price of the AMX includes one monochromator, the electron optical supplies, a singlesample stage, rate-meter readout, and the crystals to cover the wave lengths from 1 to 10 A. Optional equipment includes another monochromator, a four-sample stage, a differential vacuum system, a TV scanning device (400 frames per minute), and longwave-length diffracting crystals (to 93 Α.). The AMX uses the same basic crys tal detector system as the higherpriced EMX model (C&EN, March 19, 1962, page 72) so performance should be equivalent, the company says. Basic differences between the AMX and the EMX include electron beam diameter—AMX less than 2 mi crons, the EMX to 0.3 microns; num ber of scanning monochromators— two for the AMX, three for the EMX; and the light optics system—AMX better than 2 microns resolution, EMX better than 1 micron. Ε 60
Conveyor Uses Air Film Mervyn Mark IV Square Wave Polarographic Analyzer This British-made analyzer is so sensitive that it can accurately determine trace amounts of reversibly reducible ions in concentration as low as 1 χ 10-8Μ. This sensitivity can be realized even in the presence of a 20,000 X concentration of a more easily reduced major constituent that has a half-wave potential differing by only 45 mv. Ultimate sensitivity is 1 χ 10-8M. The polarogram produced by this A.C. system consists of a series of successive peaks, each centered at the respective Eè with a height proportional to concentration— providing markedly higher sensitivity and resolution than the "steps" of a conventional D.C. polarogram. Dissolved oxygen causes little problem, can often be ignored, and at worst can be sufficiently removed with little effort. Matheson Scientific is the sole U.S. distributor for the Mervyn Mark IV. For a more detailed discussion of its technology and operating principle, write for a free Bulletin.
M A T H E S O N SCIENTIFIC Division of The Matheson Company, Inc., 1735 N. Ashland Ave., Chicago, 1.60622 Chicago / Cincinnati / Cleveland / Detroit / Houston / Kansas City / Los Angeles / Oakland / Philadelphia / St. Louis
50
C&EN
D E C . 14, 1 9 6 4
A pneumatic conveyor which uses an aii* distribution system to fluidize the material to be transferred has been developed by B. F. Goodrich Co. The unit, called the Granu-Veyor by the Akron, Ohio, firm, is designed for use in high-volume, in-plant systems. A sheet of specially formulated urethane foam, consisting of minute cells with thin elastic walls, is the floor of the unit (which, when installed, re sembles an air duct ). These cells al low the air to pass when pressure is applied and block the flow when the pressure is reduced. Air is piped from a blower into a phenum chamber under the urethane floor. The air permeates the foam and creates an air film which fluidizes the material so that it reacts like a liquid—flowing from inlet ( a hopper or storage vessel) to its discharge point ( a mixer or weigh vessel ). The de gree of incline of the conveyor unit and the amount of air volume needed depends on the material and the rate at which it is to be conveyed. The system can be fully automatic, accord ing to Goodrich.
w h a t is C e r a t h a n e P o l y m e r 6 3 ? w h y is it important? where did it come from? CERATHANE* Polymer 63 is a polyurethane product which combines the desirable properties of wax and polymer emulsions. When used as a polish base or ingredient, it insures high gloss, long wear and buffability, without powdering or brittleness. It is extremely hard and tough, yet is easily emulsifiable with very small amounts of oleic acid. Completely free of tackiness and crystallinity, CERATHANE Polymer 63 requires no external plasticizers and has excellent adhesive and cohesive properties. For many years Bareco has specialized in developing unique microcrystalline and synthetic waxes. CERATHANE Polymer 63 is the newest development. Many of the finest polishes, packages, wrappings, and other products in wide use today are better because of the Bareco products they contain. Write or call Bareco for free technical assistance. You'll receive recommendations and samples without obligation. *Petrolite Corporation Trademark CO-64.3
PETROLITE C O R P O R A T I O N
i F-1.1I>!']
DIVISION
917 Enterprise Building, Tulsa, Oklahoma 74103 Offices and representatives in Ardmore, Pennsylvania · Atlanta, Georgia · Chicago, Illinois · Los Angeles and San Francisco. California 1 London. Enaland · Paris. France · Voorbura. Netherlands
C&EN
EQUIPMENT
PROGRESS REPORT
These items have all been mentioned editorially in C&EN in the past month. If you haven't already sent for information on them, just check the appropriate key numbers on the coupon on page 58, and C&EN*s Readers' Information Service will forward your request to the manufacturer.
INSTRUMENTS AND CONTROLS . . . Company
Product
Microanalyzer
Ε 61
Automatic batching system
Ε 62
Liquid level control (Model LLC-9) Hydrocarbon analyzer
Ε 63
Data processing
Ε 65
Control device (Procometer) Moisture analyzer (Model Wf type L-4)
Ε 66
Ε 64
Ε 67
Particle size analysis (Photosedimentometer)
Ε 68
Thermal analyses (Thermoanalyzer) Interferometer system (Model 734) Recording instrument (ISI Series 109) Chromatogram scanner
Ε 69
Refractometer
Ε 73
Spectrophotometer (RPQ 20 A)
Ε 74
Ε 70 Ε 71 Ε 72
Acton Laboratories, Inc. Acton, Mass. AEL Products, Inc. Col mar, Pa. AMTEC International Corp. Plainview, N.Y. Foxboro Co. Foxboro, Mass. International Business Machines Corp. White Plains, N.Y. Lea-Ronal, Inc. Jamaica, N.Y. Manufacturers Engineering & Equipment Corp. Warrington, Pa. Measurement and Control En gineering, Ltd. Scarboro, Ont. Mettler Instrument Corp. Princeton, N.J. Perkin-Elmer Corp. Norwalk, Conn. Scam Instruments Corp. Skokie, III. Tracerlab division of Laboratory For Electronics, Inc. Walt ham, Mass. Uhl Instruments Grand Rapids, Mich. Carl Zeiss, Inc. New York, N.Y.
Features For research and analysis on metals, ceramics, and biological specimens Measures, batches, and transfers up to eight different liquids Detects and controls both liquid-gas and liquid-liquid interfaces Detects trace to percentage amounts of hydrocarbons in a gas sample A computer-controlled system designed to work with graphic information For computing and regulating plating bath constituents Measures the moisture in aliphatic and aromatic hydrocarbons For use as an optical densitometer, tin tometer, or adsorption meter For simultaneous thermogravimetric and differential thermal analyses For the study of shock, exhausts, plas mas, and other phenomena Monitors alarm contacts and other con tacts which give on-off operations Permits accurate location of low-energy beta-emitting isotopes For measuring the percentage of solids in liquid solutions A double-beam instrument with a range of 200 to 2500 m/x.
EQUIPMENT AND LABWARE Flanges
Ε 75
Air purifier
Ε 76
Pumping system
Ε 77
Pneumatic dryer
Ε 78
Pipeline valve
Ε 79
Mixer-extruder
Ε 80
Mechanical packing (Style 326)
Ε 81
Filters (WK Fulflo) Unsaturation analyzer (Micro Hydro-Analyzer)
Ε 82
Pulp-cleaning cyclones
Ε 84
Ε 83
1 ADVAC Products, Inc. Stamford, Conn. Amark Industries, Inc. Clifton, N.J. Aurora Pump division of New York Air Brake Co. Aurora, III. Bench Scale Equipment Co. Dayton, Ohio Black, Sivalls & Bryson, Inc. Kansas City, Mo. BonnotCo. Canton, Ohio Chesterton Packaging & Seal Co. Everett, Mass. Commercial Filters Corp. Lebanon, Ind. Delmar Scientific Laboratories, Inc. Ι Μ aywood, III. 1 Equipment Engineers, Inc. | Palo Alto, Calif.
Continued on page 54 52
C&EN
DEC. 14, 1964
Stainless steel flanges for high-vacuum applications Eliminates offensive odors by discharging ozone and negative ions For use where constant pressure or liquid level must be maintained. Handles 7000 gal-per-min. flows For rapid evaluation of flash drying meth ods for new products and processes Designed to reduce noise, shock, and vibration under full load operation For use with mastics, plastics, putty, and other difficult to mix materials Combines Teflon and asbestos to give lubrication, chemical resistance, and low friction Multitube filters have nominal capacities ranging from 25 to 2070 gal. per min. Determines unsaturation by measuring the volume of hydrogen consumed dur ing catalytic hydrogénation Range in unit capacities from 4.5 to 4600 gal. per min.
SOLVENTS I I CHEMICALS (a little or a lot)
Say when, say where-AMSCO's there It makes no difference who, where, or how big or small you are. You get solvents or chemicals when you're ready for them. No inventory problems! AMSCO has the broadest supply network in the nation. Just a phone call and it's on its way, faster than anybody. From strategically located distribution centers. If you have special solvent or chemical problems, we'll help you solve them. Call AMSCO for consistent uniform quality. Get what you need, when you need it, where you need it. AMERICAN MINERAL SPIRITS COMPANY m Division of The Pure Oil Company m Producer of all petroleum solvents and waxes and basic in, or distributor of an all-inclusive line of related chemicals m New York—Sales offices in principal cities u Service world-wide through AMSCO International
AMSCO
EQUIPMENT
(CONT.)
Tires (F-100)
Ε 85
Firestone Tire & Rubber Co. Akron, Ohio
Suction pump (Model 56) Thickness gage
Ε 86 Ε 87
Fisher Scientific Co. Pittsburgh, Pa. Gardner Laboratory, Inc. Bethesda, Md.
Maraging Steel
Ε 88
Jacketed kettles
Ε 89
Evaporator (Model VE-10) Low-flow pump
Ε 90
In-line mixer
Ε 92
Mixing Equipment Co., Inc. Rochester, N.Y.
Pipe connectors (WS TeeLet) Infrared thermometer (R-9G) Control valve
Ε 93
Vacuum pumps
Ε 96
Η. Κ. Porter Co., Inc. Pittsburgh, Pa. Ray-Tek, Inc. Mountain View, Calif. Republic Mfg. Co. Cleveland, Ohio Stickle Steam Specialties Co. Indianapolis, Ind. Tuthill Pump Co. Chicago, III. Vacuum Engineering Co., Inc. Billerica, Mass. Warren Pumps, Inc. Warren, Mass.
Ε 91
Ε 94 Ε 95
aypeH) Metering pump
Ε 97
Ultrahigh vacuum valves
Ε 98
Rotary pumps (Roline)
Ε 99
NEW CHEMICALS Fine-grained zinc phosphate coatings on steel are produced by a liquid con centrate available from Enthone, Inc., of New Haven, Conn. The phosphate coatings produced by Enthox S-962 are tightly adherent, give good corro sion resistance to the steel, and make an excellent base for organic finishing, the company says. C 30
A liquid aromatic type curing agent for polyurethanes is being offered by Furane Plastics, Inc. According to the Los Angeles, Calif., firm, Hardner 977 facilitates the casting and curing of urethane prepolymers. Two types are offered: Type A for room-tem perature setting, and Type Β for hightemperature setting. C31
A phosphonitrilic-modified phenolic resin (PH 990) is available in devel opment quantities from El Monte 54
C&EN
DEC. 14, 1964
International Nickel Co., Inc. New York, N.Y. Lee Metal Products Co., Inc. Philipsburg, Pa. Mikros, Inc. Portland, Ore. Milton Roy Co. St. Petersburg, Fla.
Chemical Co., Alhambra, Calif. It is available as a stable, soluble, off-white powder which contains 15% phos phorus and less than 1% chlorine. Coatings, adhesives, laminates, and moldings made from the reactive resin have superior hydrolytic stability, noncombustibility, and thermal stability (in air), the company says. C 32
α-pinene, β-pinene, and δ-3-carene, three terpenes derived from wood are being manufactured and marketed by Waldorf Hoerner Paper Products Co. Test samples will be supplied upon re quest, the Missoula, Mont. Co. says. C33
Glyoxylic acid (50% solution) is now available in semi-commercial quanti ties from BASF Colors & Chemicals, Inc., of New York, N.Y. According to BASF, the reactive aldehyde-carboxylic acid can be used as an inter mediate in the synthesis of organic
Uses two plies of glass fiber in the belt and one or two plies of rayon in the carcass Miniature unit which employs peristaltic action to transfer liquids For measuring the thickness of nonconductive coatings on nonferrous metal bases Has a 1 2 % nickel, 5 % chromium, and 3 % molybdenum composition Available in stainless steel, nickel, and Monel Suspension assembly eliminates vibra tion of the roughing pump For precision metering of chromatog raphy columns and wet-process ana lytical units Continuous blending of low-viscosity color pigment with high-viscosity ma terials Carbon steel units for use on pipes with diameters up to 36 in. For noncontact measurement of glass temperature (100° to 1300° C.) Two valves in one body give full flow one direction and metered flow the other For draining condensate from steam processing units Handles fluids at temperatures to 170° F., and pressures of 50 p.s.i.g. Stainless steel valves for use to 10~ 1 0 torr Designed for in-line pumping of liquids with viscosities up to 100,000 Saybolt sec. universal
chemicals and many synthetic mate rials. C 34
Chromium hexacarbonyl is available from Alfa Inorganics, Inc., of Beverly, Mass. The compound is highly vola tile and thermally degradable. Appli cations are in chromium plating and as a chemical intermediate. It is cur rently available. It is currently avail able in research or developmental quantities, the company says. C 35
An alumina ceramic with high-lighttransmittance and high-temperature capability has been developed by Corning Glass Works, Corning, N.Y. The translucent material, called Coram, is a dense-fired poly crystalline alpha alumina which has excellent re sistance to alkali vapors at high-tem peratures, essentially zero porosity, and 90% total light transmittance from 3000 to 6000 Α., according to the manufacturer. C 36
**
For your free samples, contact Department 1833 B-2
FAKC C O R P O R A T I O N '
INORGANIC CHEMICALS
DIVISION
6 3 3 THIRD AVENUE, N E W YORK, Ν. Υ. 10017
M 3 » A D M CHEMICALS
*
Solvent warehouse for Detroit's new generation of auto finishes
Lake St. Clair... the Detroit River... or any other handy source of water... provides the only solvent needed for the new Arolon family of in dustrial finishes from ADM Chemicals. This complete system of prim ers and topcoats competes with the best solvent-thinned rivals in every performance category. But Arolon adds new advantages: Elimination
of t h e s o l v e n t e l i m i n a t e s odor, toxicity and fire hazards. Arolon finishes create film properties that are equal or superior to solvent-thinned vehicles in gloss, durability, color, adhesion, flexibility, cure speed, chemical resistance, and application properties. And formulation is simple. So new A r o l o n s y s t e m s welcome c o m p a r i s o n with t h e best s o l v e n t - t h i n n e d ,
non-oxidizing, alkyd-melamine systems . . . primer or top-coat, air dried or baked. And Arolon systems keep fire hazards to a minimum, even when large dip tanks are used. There has never been any thing like the new Arolon water-thinned industrial finishes. Our technical data file gives the whole story. Send for your copy.
ADM CHEMICALS/RESINS · PLASTIC! · PLASTICIZERS · FATTY ACIOS AND TRIGLYCERIDES·FATTY ESTERS · FATTY AMINES, AMIDES, QUATERNARIES
56
C&ΕΝ
Organotin germicide is commercially available from Stecker Chemicals, Inc., of Ho-Ho-Kus, N.J. SpectroSan is a chemical derivative of an in dustrial germicide and can be used as a surface disinfectant where cross in fection is likely to occur. The germi cide is recommended by the firm for use in heavy-duty detergent additives and broad spectrum control products. C37
RESINS Whether you think of resins for paints, textile finishes, paper coat ings, inks, adhesives, plastics, or even chewing g u m . . . save time and think of ADM first Some people are so dazzled by our laboratory excellence in resins for the paint manufacturers that they overlook our talents with new and unusual resin products in many other fields. And things we learn in the paint area tend to lead into other lands.
An electrical grade polyvinyl chloride homopolymer has been introduced by Escambia Chemical Corp. According to the New York, N.Y., company, resin 1250E offers excellent thermal stability and dry blending qualities not previously found in a single resin. The resin is suited for extrusion of electrical components from dry blends
For example, solvents are an un pleasant problem in more than the paint business. And ADM's new Arolon water-soluble resins solve the solvent problem... provide the advantages of tough, durable resin treatments for fibers, paper and tex tiles with all the ease and safety of application that you hitherto have had only with latex lattices. So for water-thinned coating mate rials, write ADM.
or diced compounds for wire and ca ble applications. C 38
A stable zinc-copper couple for use
in organic synthesis is now available from Metal Hydrides Inc., of Beverly, Mass. The gray powder is useful in forming zinc organometallics without the initiation period or initiators nor mally required for zinc metal, accord ing to the company. The material can also be used in the pharmaceutical industry. C 39
Further information on keyed Equipment and Chemical items is readily available . . .
Use handy coupon on page 58
Readers' Information Service
Here are other ADM resins for a wide range of uses:
I I j
I
December 14, 1964
Use this handy self-mailer to obtain further information or literature. Simply mark the items desired, fill out the information requested, clip the coupon, fold, staple, and mail.
Aroplaz short, medium and long oil alkyds, and non-oxidizing alkyds. Aropol copolymer industrial resins —styrenated and vinyl toluenated alkyds and oils.
Name: Company:
Aroflat flat wall vehicles—oxidizing alkyds, high-viscosity modified oxi dizing alkyds, and modifying oxidiz ing alkyds which impart good thixotropy and adhesion.
Street: -Zone-
City
State -
Your Title:
Aroflint two component system for tile-like coatings on wood, masonry or metal.
YOUR FUNCTIONS (Maximum of 2, please.) Α Β C D Ε F
Arofene pure phenolic hard resins and ester gums. Arochem hard resins—phenolic, maleic and modified rosins, fortified ester gums and alcohol soluble con densates.
Π Π Π Π Π Π
Management Process Research & Development Product Research & Development Basic Research Plant Operations Engineering Design & Construction
G Η Ι J Η
Π Π Π Π Π
Analysis/Testing Marketing/Sales Purchasing Consulting Teaching—Student
CLIP COUPON—Fold along this line—fasten (staple, tape, glue) MAIL
Aroset thermosetting acrylic resin. Your Industry:
Arothane polyurethane coating resins.
A Β C D Ε F G H I J
AdmeroJ, Ardol, and Dryfol co polymer oils, and other non-phthalic paint vehicles.
( ( ( ( ( ( ( ( ( (
) ) ) ) ) ) ) ) ) )
Engineering and Construction Food and Kindred Products Textile Mill Products Paper and Allied Products Government Chemicals and Allied Products Elastomers, Polymers, Plasticizers Drugs Detergents, Cosmetics, Specialties Paints, Varnishes, etc.
Κ ( ) Petroleum Réf., Asphalts, Lubricants L ( ) Rubber and Plastic Products M ( ) Independent Laboratories Ν ( ) Consultants 0 ( ) Primary Metal Industries Ρ ( ) Fabricated Metal Products Q ( ) Machinery and Equipment R ( ) Transportation Equipment S ( ) Instruments and Controls Τ ( ) Education
ADM CHEMICALS ARCHER OANIELS MIOLAMO COMPANY 733 MAROUITTf AVtNUf · OIPT. 3 0 MINNIAPOLI3. MINNISOTA 85440 '
CP 16
DEC.
14, 196 4 C & E N
57
