CHEMICALS
Low Cost Polymeric Plasticizers Bow Emery Industries introduces four new products, aims at markets now held by monomerics Four new polymeric plasticizers are now being marketed by Emery Industries, Cincinnati. The low-cost products, Plastolein 9722, 9730, 9750, and 9765, feature improved stability and performance, Emery says. With these products Emery hopes to expand greatly today's market for polymeric plasticizers, an estimated 30 million pounds a year. The company also hopes to invade markets now held by monomelic materials. The plasticizers are used primarily in vinyls. Emery is applying for patents on all four products. All the new products are the result of "unique chemistry," Emery says. High performance is obtained with relatively low molecular weight materials. In the past good performance has been primarily a function of molecular weight, but apparently Emery has found a way around this. For example, Emery claims that Plastolein 9730 performs as well as products with twice its molecular weight. Cost Cuts. Emery is cutting the price of azelaic acid three cents per pound to 37 cents this week. The company is also cutting the prices of azelaic esters and Plastolein 9078 LT, a proprietary plasticizer based on azelaic acid. Behind the lower price tags is Emery's new $6 million ozone-oxidation plant at Cincinnati, which has just come on stream. This facility gives Emery a several-fold increase in capacity for azelaic and pelargonic acids, starting materials for plasticizers. Emery says its ozone production techniques and equipment yield perhaps the lowest cost ozone in the U.S. The ozone is used to split the double bond of oleic acid to get azelaic and pelargonic acids. High Performance. Claims for the new plasticizers include improved humidity and outdoor aging, better compatibility and permanence, and good soapy water resistance. Top performer is Plastolein 9765, priced at 40 cents per lb. Strongest
points include excellent permanence, the best resistance to extraction by hexane, and outstanding resistance to humidity aging. Aging tests were done by South Florida Test Service, and the Emery products showed up well after 600 hours in the sun. Emery says Plastolein 9765 will perform as well as competitive materials costing 45 to 50 cents per lb. Lowest cost material is Plastolein 9730 at 34 cents per lb. This gets it down fairly close to monomeric plasticizers which average 25 to 30 cents per lb. Emery sees this product as tough competition for some monomerics.
BRIEFS Chromatographic solid support is available from The Fluoro-Carbon Co., Anaheim, Calif. The material, Fluoropak 80, is effective in reducing tailing caused by adsorption of highly polar components by active sites on support material. This is significant in the analysis of ammonia, amines, water, hydrogen chloride, and other highly polar substances. Its inert chemical properties make it adaptable for use with highly corrosive substances, such as acetic acid, chlorine, bromine, and hydrogen sulfide, the company says. CI Epoxy resin designed for filament winding processes is available from Union Carbide Plastics, New York, N.Y. Bakélite epoxy ERL-0500 has low viscosity and is easy to handle. Properly cured, it has good mechanical properties, the company claims. C 2 Self-crosslinking resin latex, X-Link 2833, that can be used as a binder has been developed by National Starch and Chemical Corp., New York, N.Y. This new vinyl-acrylic copolymer dispersion is designed to crosslink without the addition of thermosetting resins. It forms strong and flex-
ible films, resistant to water, solvents, and creep. Use of the latex eliminates problems of stability, odor, compatibility, and high curing temperatures usually associated with combinations of thermosetting and thermoplastic resins, National says. Applications for X-Link 2833 include nonwoven fabrics, wallpaper coverings, adhesives, and textile finishes. C 3
Indicator tablets for acid-base titrations are available from Fisher Scientific, Pittsburgh, Pa. Metab indicator tablets can also be used for chelometric titrations of most metals, and end points are sharp, the company says. Each Metab contains 0.5 mg. of the sodium salt of 3,3'-[bis-N, N'-di(carboxymethyl)-aminomethyl] - thymolsulfonphthalein, formulated with specially selected binder. C4
Epoxy in pellet form has been introduced by Epoxy Products, Irvington, N.J. The epoxy pellets can bond most hard-to-bond materials, the company claims. They are designed for good chemical and solvent resistance, low moisture permeability, and good electrical characteristics. By modifying pellet composition, the bonding material can be made either flexible or rigid. Curing temperature can be varied from 85° C. for bonding heatsensitive components to 250° C. for a fast cure bond. C5
Two glycol-ethers, Ucar solvents LM and 2LM, are available from Union Carbide Chemicals, New York, N.Y. Ucar solvent LM is propylene glycol methyl ether; Ucar solvent 2LM is dipropylene glycol methyl ether. Because of the low toxicity of these two materials they are attractive as solvents, humectants, and preservatives in the food and cosmetic industries, the company says. C6
Coating that resists abrasion and a broad range of organic and inorganic chemicals is available from Farboil Co., Baltimore, Md. The polyester isocyanate copolymer, Curamene, is designed for use on surfaces that are subjected to severe abrasion. It can be applied over a wide range of temperatures, is unaffected by high humidity while curing, and has a flash point of over 100° F., the company says. C 7 J U N E 12, 1961 C & E N
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now, at low cost, the new ASCO "50" enables you to compare your present processing costs with those of
MOLECULAR
DISTILLATION mi Sf
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' 'ds of investigation heretofore made prohibitive g h use of highly expensive investigative tech niques can now be explored with this simple-tooperate molecular still. Since the "50" still is the laboratory counterpart of the large commercial Rota-Film Still, results obtained may be duplicated on a commercial scale of any magnitude.
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Batches from 10 ml to 20 liters Vacuum range from atmospheric to 1 micron Hg. Temperature range to 450°C. Teflon or carbon rotor-wiper blades Stainless-steel (18-8 type 304) wiper-holders (Available with Hastelloy B) • Continuous or batch feed · All parts made of glass except wiper-holders and top plate · UNITS MAY BECOUPLED FOR FRACTIONATION.
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With this simple-to-operate still you may... • explore falling agitated film evaporation and dis tillation · distill materials with molecular weights ranging from 200 to 1250 weight (hydrocarbons) and some materials to 4000 molecular weight (silicones and halocarbons) · deglycerinate and distill mixtures of mono-, di- and tri-glycerides • distill tall oil · distill paraffin from slack wax or petroleum residue · deodorize oils · remove color bodies from materials of high molecular weights.
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ARTHUR F. SMITH, INC. · 311 ALEXANDER ST., ROCHESTER 4, Ν. Υ.
M O D E R N FOR YEARS TO COME
SflRGCIlT DRYERS SARGENT guarantees uniform drying without case-hardening, with minimum dusting of even the most difficult materials, without particle attrition. A SARGENT is modern, fully automatic, trouble free, com pletely dependable. It delivers your product as you want it. A SARGENT Dryer saves you money, from its record-quick installation at your plant, through years and years of quality production. Upper: 2-stage Kaolin dryer with extruaei Lower: Pilot plant dryer
C. G. SARGENT'S SONS CORPORATION Graniteville,
SINCE m Τ
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Massachusetts
DESIGNERS, ENGINEERS, BUILDERS of: DRYERS (Conveyor, Tray, Truck, Pole, Tunnel, Rotary, Laboratory, Pilot Plant) • COOLERS · FEEDERS · EXTRUDERS · GRANULATORS NEW YORK · PHILADELPHIA · CINCINNATI · CHARLOTTE · ATLANTA · LOS ANGELES · HOUSTON · CHICAGO · DETROIT · TORONTO
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1961
use as fermentation nutrients are avail able from Amber Laboratories, Inc., Milwaukee, Wis. Amber MPH is an enzyme hydrolyzed meat protein that contains about 14% total nitrogen of which 20% is amino nitrogen. Amber CTPH is an enzyme hydrolyzed cottonseed protein containing about 8.5% total nitrogen of which 3 1 % is amino nitrogen. Both are spray dried powders and are packed in fiber drums. C8
Organic intermediate used in the prep aration of amides, esters, and alcohols is available in experimental quantities from Lithium Corp. of America, New York, N.Y. The high purity com pound, 2,6-dimethoxybenzoic acid, has a m.p. of 186° to 188° C , a maximum, moisture content of 1%, and a maxi mum iron content of 10 p.p.m., the company says. C9
Conveyor lubricant, Clenesco Lumatic, is being marketed by Cowles Chemical Co., Cleveland, Ohio. A 1% solution in soft water can do a thorough lubri cating job, the company claims. Lu matic is prepared from food grade chemicals, is nontoxic, and has a light, pleasant fragrance. C 10
Glass-base, laminated plastic of epoxy resin is self-extinguishing. Developed by Taylor Fibre Co., Norristown, Pa., the new material, Fireban 600, is avail able in sheets with thicknesses from 0.01 to 2 in. It has a semigloss finish; color is light green to tan. It has selfextinguishing properties with high mechanical strength, good electrical properties under high humidity condi tions, and low moisture absorption. The sheet also comes with copper cladding (Fireban 600E) for making printed circuits. C 11
If your product can be air-dried, it can be dried in a SARGENT better, faster, at least cost per pound.
May we give you details? Just write us.
Two enzyme hydrolyzed proteins for
Two methacrylate monomers are be ing offered by Rohm & Haas, Philadel phia, Pa. The compounds dimethylaminoethyl methacrylate (DMAEMA) and feri-butylaminoethyl methacrylate (ί-BAEMA) offer a way of introduc ing pendant, reactive amine groups into plastics, elastomers, coatings, and fibers. They are also useful as chemi cal intermediates, since their amine groups and double bonds can enter into a variety of reactions. C 12
FMC's experience in handling these hazardous materials is hard to match. You can rely on FMC for safe shipment ....for advice in storing and handling PCI3 and POCI3.
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FMC's research staff will gladly work with you in developing new compounds using these chemicals. If you have an application in mind, take advantage of this service.
REASONS WHY THESE FMC CHEMICALS ARE THE BEST YOU CAN BUY
FMC is basic in phosphorus and chlorine:—Since we start with our own highly-purified elemental materials, you get the benefit of minimum impurities in FMC's phosphorus chlorides. FMC's strategic location and primary source of r a w materials means we can meet all your requirements—on schedule!
Available in any quantity from drums to tank-cars. Write today for technical data. T Y P I C A L USES PCÏ3 and POCI3 are excellent chlorinating and condensing agents. They are important intermediates for gasoline additives, plasticizers, dyestuffs. . . . Phosphorus trichloride is used to make surfactants and reacts with alcohols and phenols to form phosphites. Phosphorus oxychloride is widely used in the synthesis of organic phosphates, including gasoline additives, plasticizers, and non-burning functional fluids. Putting Ideas to Work
FOOD M A C H I N E R Y A N D C H E M I C A L CORPORATION C h e m i c a l s and Plastics Division 161 East 42nd Street, New York 17, Ν. Υ.
"W^itlx etcrylettes · · · purity ;pa,ys oft C e l a n e s e acrylates, m a d e by t h e b e t a p r o p i o l a c t o n e p r o c e s s , provide n e w high s t a n d a r d of purity It's a good bet that Celanese acrylates can give you a better finished product. Gas chromatographs demonstrate the unsurpassed purity inherent in this unique Celanese production method. This purity means consistent reaction rates and more complete conversion of monomer to polymer. You'll finish in the money if you start with Celanese acrylates in the production of paints, paper, leather, textiles, floor polishes, and other polymeric applications. Write for 48-page booklet. Celanese Chemical Corrpany, Dept.654-F, 180 Madison Avenue, New York 16, N. Y. cdanese®
Celanese Chemical Company is a Division of Celanese Corporation of America Canadian Affiliate: Ca ladian Chemical Company Limited, Montreal. Toronto, Vancouver Export Sales: Am eel Co., i c , and Pan Amcel Co., Inc., 180 Madison Avenue, New York 16
iMiWiCALS
Resin for making plastisols with low fusion temperatures comes from B. F . Goodrich Chemical Co., Cleveland, Ohio. The new polyvinyl chloride co polymer, Geon 135, has a fusion tem perature of 300° F. for plastisols based on the resin, the company says. Geon 135 can be used for molding, stencil printing on calendered or extruded vinyl sheeting, and as a tie-coat for laminating film to fabric, the company claims. Plastisols based on Geon 135 are useful for spread coatings on heat sensitive materials. C 13
New type of butyl synthetic rubber has
been developed by Esso Research and Engineering Co., New York, N.Y. The new material has a high resistance to ozone, and it can be used whenever low cost, long lasting properties are
needed, the company says. Typical applications include automotive weather stripping and seals, electrical insulation, curtain wall sealant, ex truded and molded sponge. C 14
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Further useful information on keyed Chemical items mentioned is readily available . . .
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Oak Ridge National Laboratory offers more than 300 radioactive and stable isotope products. RADIOISOTOPES Processed Solutions — 90 processed ra dioisotopes may be obtained, including many carrier-free and high specific activ ity products. Now Available—Technetium at $100 per gram (as element or ammonium pertechnetate); calcium-47, with less than 5% Ca-45, at $200 per mc; iodine-125 in re search quantities; iodine-124 and iodine126 are available on special request.
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Thiodipropionic acid is now available in commercial quantities from Evans Chemetics, Inc., New York, N.Y. The acid has Food and Drug Administra tion approval for use as a food addi tive, the company says. Can also be used in food packaging materials, fats and oils, and pharmaceuticals. C 15
June 12, 1961
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ISOTOPES
Process Design & Development Production—Processing Purchasing Analysis—Testing Consulting
STABLE ISOTOPES More than 200 stable isotopes available from 50 elements Chemical processing and target fabrication services also of fered Ultra-high iso topic purity in a number of isotopes. For information or literature, write t o : Isotopes Division, Oak Ridge National Laboratory, P . O. Box X , Oak Ridge, Tennessee.
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