Abstract: Reinforced thermoplastic compositions are provided comprising a poly(1,4-butylene terephthalate) resin, a poly(ethylene terephthalate) resin, and a reinforcing, warp resisting combination of talc and silica. The compositions optionally include a segmented copolyester resin, a silicon polymer and/or a fibrous glass reinforcement. The compositions are moldable to articles having improved resistance to warpage during heat treatment in comparison with molding compositions of talc, (poly(1,4-butylene terephthalate) and poly(ethylene terephthalate).

Abstract: An aqueous solution or dispersion of thermosetting resin comprising a resin, dissolved or dispersed in water in an amount of 5 to 85% by weight, said resin being obtained by solution polymerization of a mixture comprising (1) at least one polymerizable monomer having an amphoteric ion structure, (2) at least one polymerizable monomer containing a carboxyl group and (3) at least one of other polymerizable monomers in a hydrophilic organic solvent and has a number average molecular weight of 1,000 to 30,000 and a glass transition point of -30 to +80.degree. C.

Abstract: Flame-retarded reinforced thermoplastic compositions are provided comprising a high molecular weight linear polyester resin, a warp resisting amount of a polyphenylene sulfide powder, a flame-retardant and reinforcing fillers. The compositions are moldable to articles having improved resistance to warpage. When the polyphenylene sulfide is employed in the compositions which contain decabromodiphenyl ether as the flame retardant, unexpected improvement in high arc resistance is also observed.

Abstract: Disclosed is a composition, comprising a calcium-containing polyethylene terephthalate polymer and from about 0.01 to 1% by weight of silica obtained by a pyrogenic process, as well as a method of producing same and improved shaped articles made from said composition.

Abstract: Composition of matter and process for imparting a colorless appearance to cast allyl diglycol carbonate articles such as lenses and lens blanks and for simultaneously imparting to the article an ability to fluoresce when subjected to ultraviolet light. The composition comprises about 40 parts maleic anhydride, maleic acid, copolymers of propylene glycol with maleic acid or maleic anhydride, or mixtures thereof, and between about 0.5 and 1.5 parts of a mixture of 10 parts cobalt acetyl acetonate and between about 0.4 parts to 1.2 parts copper acetyl acetonate. Between about 0.05 and 0.15 parts of the composition is mixed with 1600 parts allyl diglycol carbonate monomer-catalyst prepolymer mixture and cast to form the desired article.

Abstract: The present invention pertains to a reusable, transparent; pigmented, polycarbonate container which selectively filters out the portion of the visible spectrum of from about 380 to 550nm. In a preferred embodiment, the pigmented, polycarbonate bottle is a milk bottle.

Abstract: Polyester film for magnetic tape including discrete polyester particles containing lithium, calcium and phosphorus, said particles having an average size in the range from 0.1 to 3.0 .mu.m and inert pigments having an average size of 1.0 to 10.0 .mu.m.Magnetic tape from this film has improved abrasion resistance and reduced the occurrence of "drop out".

Abstract: Pigment formulations and their use.The formulations contain pigments, organic solvents and from 10 to 80% by weight of a wetting agent consisting of a non-ionic organic compound which has a viscosity of from 500 to 10,000 mPa.s and has been produced by reacting an alkylated amide/formaldehyde reaction product and an epoxy resin, which may or may not be modified, in a weight ratio of from 9:1 to 1:9. They are used as additives in surface-coating binders, especially in cationic electrocoating finishes.

Abstract: Friction compositions containing major proportions of non-fibrous inorganic compounds in place of asbestos are disclosed. The compositions are particularly useful in the preparation of automotive disc brake pads.

Abstract: Isocyanate-terminated prepolymers can be cured with di- and triamino-s-triazines of formula ##STR1## where R is ##STR2## --S--R.sub.5 ; --O--R.sub.6 or ##STR3## where at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is hydrogen; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are hydrogen or an optionally substituted aromatic or aliphatic group andR' is the divalent residue of an organic diamine, the residue of an organic diisocyanate, or the residue of an organic diepoxide.

Abstract: This invention is concerned with the treatment of particulate alumina trihydrate surfaces with a polyether substituted silicon compound which serves to enhance its employment in reinforced polyester composite compositions.

Abstract: Polyethylene or EVA copolymer film which includes up to about 15% by weight of an additive preferably a mixture of alunite - aluminum hydroxide is disclosed for particular use as a cover for agricultural purposes. The disclosed film has improved properties which provide growth of plants and/or crops by reducing thermal losses to the atmosphere and by minimizing shadow formation. The physical characteristics of the film are equal to or better than conventional films.

Abstract: Low molecular weight liquid phenol formaldehyde resins and processes for producing them are described. Preferred products are used as foundry binders and are made by forming a low molecular weight liquid novolak, removing free phenol while retaining a low molecular weight, and reacting with additional formaldehyde in the presence of an alkaline catalyst under conditions that yield a low molecular weight.

Abstract: Copolyesters of terephthalic acid, 1,4-butanediol and an aliphatic dicarboxylic acid of the formula Ihooc--r--cooh (i)wherein R represents a divalent aliphatic hydrocarbon group containing not more than 34 carbon atoms, are eminently suitable as impact modifiers for polyalkylene terephthalates for improving the toughness properties.

Abstract: Preparation of improved smoke and flame retardant high structural strength resinous compositions by incorporating fractured finely ground solid powder particles of soda-containing silicate glass, especially soda-lime-silicate glass, having a high and irregular surface area and an average particle size below about 40 mesh, and a finely divided inorganic solid oxidic boron material capable of forming inert glass upon being heated, e.g. sodium tetraborate (anhydrous, pentahydrate and decahydrate), boric acid, and boron oxide, alone or combined in an average particle size below about 40 mesh, into the corresponding resin or synthetic plastic, e.g. polyester, in intimate and substantially uniform distribution therein to form an admixture therewith prior to curing, said boron material being incorporated in an effective amount, e.g.

Abstract: A composition for use in forming an asbestos free friction element includes a cross-linkable polymeric binder and glass fibers with a sufficient amount of an infusible organic fiber to mitigate the aggressive behavior of the friction element during operation.

Abstract: A method of grafting a polymer to filler materials, which comprises the steps of fixing a predetermined quantity of a surfactant to the mineral particles of said filler materials while keeping free one or a plurality of reactive functions, subsequently adding a product capable to reacting with the still free functions of said surfactant, in order to form in situ an organic polymer which is thus strongly fixed to the mineral filler by a heat treatment at a temperature in the range of 100.degree. to 150.degree. C.

Abstract: This invention provides, in a first aspect, means for obtaining a liquid thermosetting polyester resin composition which is degassed without the loss of volatile component, by the presence of a dimethyl polysiloxane ingredient in the resin composition. The second aspect of the invention provides for mold lubrication and parting without substantial surface problems in the finished product by the presence of a mixture of an alkyl phosphate ester parting agent in combination with an alkylene bis-alkamide material.

Abstract: A self-lubricating heat-resistant material which, in accordance with the invention, comprises from 20 to 90 percent by weight of a polymer binder, viz. poly(butadiene) with a degree of cross-linking from 30 to 95 percent, and from 10 to 80 percent by weight of an antifriction filler, viz. molybdenum disulphide, graphite, boron nitride or a mixture thereof; said material is produced, in accordance with the invention, by pressing a composition consisting of from 20 to 90 percent by weight of poly(butadiene) of molecular weight between 20,000 and 800,000 and from 10 to 80 percent by weight of said antifriction filler, the process being effected at a temperature in the range from 200.degree. to 330.degree. C. and a pressure of from 1,000 to 7,000 kg/sq.cm.The self-lubricating heat-resistant material of the invention exhibits thermal stability at temperatures of up to 350.degree. C., a stable coefficient of friction and excellent wear resistance in the temperature range from -150.degree. to +350.degree. C.

Abstract: There is provided an acidic ester of a polyepoxy resin, preferably diglycidyl ether of a bisphenol, esterified with an aliphatic dicarboxylic acid. The acid ester is dispersed in alcoholic solvents and water, with a volatile base and further blended with a cross-linking agent and non-ionic surfactant to afford an aqueous dispersion useful as a heat curable coating for beverage cans, coil stock, fabricated metal, and the like.