N E W PRODUCTS Chemical and Materials
TEFLON PLASTIC COATING
THERM OSETTl NG ADHESIVE TAPE
This compound is a suspension of micron-sized Teflon particles and a plastic binder packaged in an aerosol can. It is an all-purpose, hard surface, dry film lubricant and release agent. It reduces friction and gives lubricity to surfaces of metal, wood, glass, leather, rubber, and plastic. It is excellent for coating molds, patterns, cutters, belts, forming boards, shuttles, chutes, slides, hoppers, and heat sealing jaws and for other applications where a nonstaining dry film lubricant or release agent is required. An air-dry of 15 to 20 minutes at room temperature is required before this coating can be used; maximum efficiency is obtained after a 3-hr. time. Fluoro-Plastics, Inc. 401
A new high-strength, low-cost tape, Aerobond $3032, has been developed for aircraft and electronic applications. T h e adhesive cures at temperatures as low as 200" F. and will bond nonperforated as well as perforated honeycomb cores. Aerobond $3032 is a 100% solids-modified, supported, thermosetting adhesive impregnated on a cotton scrim cloth carrier and protected by a polyethylene cover. It is a clear orange in color, weighs 0.070 lb. per sq. ft., and is 11 mils thick. T h e adhesive has a 6-month shelf line at 0" F. or lower and a working life of at least 3 days at 75" F. Cost is under $0.25 per sq. ft. Adhesive Engineering Co. 404
SILICONE RUBBER SPONGE
WATER CLEAR EPOXY ADHESIVE
T h e new materials, designated Silastic 59 and Silastic 69 silicone rubber, are specifically designed for blending with one another to secure an optimum degree of density and firmness for particular applications. Used alone, Silastic 59 rubber produces a relatively soft sponge, with compression deflection values from 0.141 to 0.422 kg./sq. cm.; Silastic 69 rubber is a much firmer product, yielding sponge with compression deflection values above 1.13 kg./sq. cm. By blending the two compounds together, a range of densities is possible. Dow Corning 402
Eccobond 24 is a two-part, general-purpose, low-viscosity, clear epoxy adhesive that will cure at room temperature. I t is particularly recommended for joining transparent materials such as glass where the clarity of the substrate is not affected by the adhesive. T h e two parts of Eccobond 24 are mixed in a ratio of 4 to 1. Sufficient cure takes place in 2 to 4 hr. so that bonded articles may be handled with complete cure in 24 hr. at room temperature Pot life is about 30 min. after mixing. Emerson & Cuming, Inc. 405
SILICOSE RUBBER SPONGE
WATER CLEAR EPOXY ADHESIVE
CERAMIC COATING CORROSION INHIBITOR
T h e inhibitor Armohib PL-1 is a blend of amine-based, oil-soluble cationic compounds which forms a film on metal surfaces and protects the metal from corrosive environments. Applications of the inhibitor are in pipelines carrying light hydrocarbons, in ocean-going tankers, and in producing oil wells. The,inhibitor is readily dissolved in gasoline and is compatible with other chemicals normally added to petroleum products. Armour Industrial Chemical Co. 403 104
Ceramacoat 512, a high-temperature ceramic material, is usable at temperatures up to 2500" F. I t is a premixed paste which can be brushed or sprayed onto metals and ceramics to form a hard, dense coating resistant to oils and most acids. T h e silica base ceramic compound has a thermal expansion rate of 6.2 x 10-6 in./in./" F. Upon curing, the coating will have a dielectric strength of 40 volts per mil at 400O F. A thinner permits spraying with a DeVilbiss gun. Aremo Products Co. 406
INDUSTRIAL AND ENGINEERING CHEMISTRY
CERXhIIC COATING
CORROSION INHIBlTOR
ILLINOIS MINERALS
AMORPHOUS SILICAS FOR EXCELLENT DISPERSION
A film of this material less than 0.00005 cm. thick is all that is needed to protect most metals, warehoused stock, and shelf goods from corrosion caused by humidity, condensation, fingerprints, and corrosive atmospheres. T h e product “D1” is a solution of nonstaining, active materials in refined mineral spirits having a flash point of 104” F. It may be applied by wipe, spray, or dip. To remove “D-1,” wipe with solvent, soapy water, or water-base detergent. Westmont Chemical Products Co. 407
JIM
POLYNOSIC FILAMENT YARN
Want a low-cost filler with excellent dispersion properties? Try IM amorphous silicas look at these outstanding characteristics: 0 Controlled absorption regardless of fineness of grind. 0 Slow settling. 0 Low moisture content (maximum 0.25%). 0 Not hydroscopic. 0 Inert. 0 Excellent suspension. 0 Ease of mixing. 0 High GE brightness. High purity. 0 Good reinforcing properties. Illinois Minerals is the world’s largest producer of amorphous silicas and provides 11 grades for every need. Sizes range from 200 mesh t o IMSILB A-10, a micronized grade with an average particle size of 1.55 microns. The IMSlLBgrades are ready to stir in without further milling. Try I M amorphous silicas - you’ll discover they give you more, dollar for dollar, than any filler-extenders you can buy. Write for free samples for testing and specification folder No. 100 IEC.
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ILLINOIS MINERALS CO. 218 10th STREET, CAIRO, ILLINOIS 62914 Circle No. 22 on Readers’ Service Card
T h e new material is a 1 to 1.5 denier supermultiyarn which has little shrinkage tendency and maintains its shape better than rayon. It has the strength and texture of silk and is resistant to alkali. T h e yarn is spun with a coagulating bath of low-grade acid at low temperatures via the high-polymerized viscose process and with a scouring finish. Teijin, Ltd. 408 tert-BUTYL HYDROPEROXIDE
Both 70 and 90% concentrations of TBHP are being marketed as Aposet 970 and 979, respectively. A liquid hydroperoxide, it is readily soluble in common organic solvents and in most synthetic monomers. Its principal use is as a catalyst in bulk and emulsion polymerization of monomers such as styrenes, methacrylates, and polyester resins. Aposet 979 is preferred over the 70% material in applications where the presence of di-tert-butyl peroxide is to be minimized and the higher concentration of hydroperoxide produces a more desirable end product. Apogee Chemical, Inc. 409 REVERSE OSMOSIS MEMBRANE
This semipermeable membrane is made of cellulose acetate. T h e membrane is used to separate water from solids, dissolved salts, and other impurities. For example, with a 1 0 0 - p i . pressure differential, the water produced will have less than 10% of the dissolved salt of the original water and will contain n o particulate matter. It is available in sheet or roll u p to 26 inches in width and 200 linear feet per roll. Desalination System, Inc.
about CVC’s new distillation service if: YOU work with high molecular weight compounds..
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YOU demand greater purity. YOU require thermal stability. CVC’s Custom Distillation Service will provide 5,00010,000 pounds a week with no capital investment. Jim Taylor of our Distillation Department will serve your needs. Write him at Consolidated Vacuum Corporation, 1775 Mt. Read Blvd., Rochester, N.Y. 14603. A Subsidiary of Bell & Howell.
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JANUARY 1967
105
LITERATURE
Investment Cast Alloys. A technical bulletin o n the physical, chemical, a n d mechanical properties of two new ironbase, investment-cast, heat-resistant alloys is available. T h e 8-page booklet lists the chemical compositions of the alloys as well as their physical properties, including density, mean coefficient of thermal expansion, a n d thermal conductivity. Data o n modulus of elasticity, stress-rupture strength, hardness, tensile strength, creep, a n d strength-to density ratios are also included. Union Carbide Corp. 41 1 Catalyst Carriers. Brochure 11-1971 describes materials used i n the catalysis of maleic a n d phthalic anhydrides a n d other process reactions. T h e brochure deals with the variety of physical and chemical properties that is built into these carriers. T h e s e include options i n chemistry, porosity, shape, and pore size. Carborundum Co. 412 Organic Chemicals. A 4-page booklet lists a wide variety of commercial chemicals including monomeric, acrylic, a n d methacrylic esters a n d acids, functional group methacrylate esters, mono, di-, and trimethylamines, tert-alkylamines, le,.t-alkylformamides, benzoguanamine, diniethylaminoethlyphenols, adipic acid, a n d alkylphenols. Short descriptions of the various products are given, along with suggested applications. Kolim and Haas Co. 413 Urethane Coatings. A comprehensive report proi4des detailed information about the formulation a n d properties of oil-modified coatings using a wide variety of oils. T h e 26-page report also includes film performance a n d durability evaluations. Olin hlathieson Chemical Corp. 414 Cross-Linkable Polyethylene. A new booklet gives basic information on properties, processing, a n d equipment for molding a n d extruding cross-linkable polyethylene molding compounds. T h e booklet explains that cross-linkable polyethylene molding and extrusion compounds are regular thermoplastic l o w or high-density polyethylene resins containing a chemical cross-linking agent. U.S.I. Chemicals Co. 415 Acrylic Monomers. A technical bulletin on low inhibitor grades of acrylic and methacrylic esters a n d acids presents laboratory data o n the influence of inhibitor concentration on rates a n d induction periods i n the solution homopolymerization of ethyl acrylate. Information o n viscosity, average molecular weights (ill,), number average molecular weights (M,) , a n d molecular weight distribution (M,/M,) is included. R o h m and Haas Co. 416 106
INDUSTRIAL A N D ENGINEERING CHEMISTRY
Bisamide Synthetic Waxes. A 9-page booklet provides product a n d application information on the complete line of synthetic waxes. T h e FDA status a n d melting point range of the waxes are included in the book. Carlisle Chemical M'orks, Inc. 417 Trimethylsilylation References. A bibliography has been compiled. T h i s list, which includes titles, contains 75 references to synthetic methods a n d analytical uses and techniques i n this relat i l ely new and rapidly expanding field. Pierce Chemical Co. 418 Engineering Plastic Materials. Listed i n the brochure are the mechanical, electrical, a n d thermal properties 01 LEXAS, polycarbonate resin; PBO, polyphenylene oxide resin; NOIIYL, resin; a n d phenolic molding compounds. Designated CDC-450, the 6-page document includes performance cur\ es a n d charts, brief descriptions of each product, a n d applications. Genera1 Electric Co. 419 Phenolic Laminate. A n illustrated 4-page bulletin discusses the properties a n d applications of this low-cost, easily fabricated, iersatile laminate. The bulletin describes how this material can be used for such applications as gears a n d sprockets, drill jigs, forming dies, mounting panels, and other items. Thiokol Chemical Corp. 420 Surfactant Selector. A new manual helps select the most suitable surfaceactil.e agent €or efficient, economical performance i n emulsion polymer systems. il simplified table indicates the surfactants used to prepare common polymer tJ-pes such as acrylates, styrene derivati7-es, a n d various vinyl compounds. Alcolac Chemical Corp. 421 Polymer-Use Chemicals. A special B;1TCH directory lists within a dozen polymer-use classes about 2000 organic compounds a \ d a b l e according to a structural atomic code. Also included is a list of the compounds i n alphabetic a l order within the polymer use classes. T h e classes include antioxidants, catalysts, curing agents, fillers, plasticizers, polymers, post-reactants, regulators, solvents, monomers, a n d miscellaneous uses. J. T. Raker Co. 422
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