Abstract: A mixture of a carboxylic acid and an alkali metal carboxylate-containing rubber in a vinyl monomer is provided. The resulting composition has a relatively low viscosity and is particularly adapted for preparing a thermosettable composition suitable for preparing reinforced plastic articles by combining an unsaturated polyester, the alkali metal carboxylate-containing rubber solution containing the carboxylic acid, a catalyst, and a reinforcing agent. The resulting composition when cured exhibits high impact strength and good surface finish.

Abstract: A blend comprising a polyalkylene terephthalate resin, an organopolysiloxane-polycarbonate block copolymer and a calcium carbonate filler having improved warp and impact properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other improved molded articles of manufacture including reinforced articles by conventional techniques.

Abstract: Molding composition and molded products comprising polybutylene terephthalate containing thermally stable reinforcing fibers, such as glass fibers, having an aspect ratio of at least about 5, inert particular filler, such as glass spheres, having an aspect ratio of less than about 3 and poly(butylene terephthalate-co-tetramethylene oxide). In a preferred embodiment the composition also includes amorphous thermally stable resins such as polymethyl methacrylate.

Abstract: Disclosed herein are glass concentrate capsules useful in forming reinforced thermoplastic resin composites, said capsules comprising 50 to 90% by weight of glass strands having a length of from about 0.80 to about 20 mm which strands are arranged in a substantially collimated array within a low molecular weight crystalline organic material, wherein the individual strands in the collimated array and the collimated array of glass strands are encapsulated in the low molecular weight crystalline organic material.

Abstract: A thermosetting coating composition, of controlled rheology, of a urethane polymer that cures into a durable, flexible coating is the subject of this invention; the film-forming constituents of the coating composition are(1) an organic polyisocyanate, and(2) a polymer that has a backbone of polymerized ethylenically unsaturated monomers and has attached directly to its backbone ester groups of the following structure. ##STR1## or an isomer thereof, wherein R.sup.1, R.sup.2 and R.sup.3 are hydrocarbon radicals; and the rheology control agents are fumed silica, attapulgus clay, copolymers of acrylonitrile/methyl acrylate of high nitrile content, modified microgels and the like. This novel coating composition is particularly useful, especially when applied over zinc rich primers, as a high quality industrial finish and can be used to paint autos, trucks, aircraft, railway equipment and the like.

Abstract: The thermal stability of hot melt adhesives comprising a polymer of glycolic acid is significantly improved by incorporating a minor amount of silica in the adhesive composition.

Abstract: Compositions exhibiting controlled release of an active substance are disclosed. The compositions comprise an unsaturated polyester resin, an active substance, and hollow microspheres of an organic material, an inorganic material, or a mixture thereof.

Abstract: This invention relates to adducts of tetra-substituted titanates and di-substituted hydrogen phosphites; the use of such adducts for treating particulate fillers, including pigments; the compositions of fillers and the aforesaid adducts with epoxy resins and other casting resins; the reaction product of said adducts with aromatic polyamines; the use of said reaction products for curing epoxide and urethane resins; and compositions of certain of the adducts and casting resins. The titanate-phosphite adducts serve to reduce the viscosity of filled epoxy resins, thereby permitting higher filler loading, to enhance the tinctorial power of pigments, and to render casting resins water-extendible. The titanate-phosphite adducts are the reaction products of one mole of a compound having the formula (RO).sub.4 Ti and two moles of di-substituted hydrogen phosphite, (R'O).sub.2 P(O)H, where R and R' are monovalent alkyl, alkenyl, aryl, aralkyl or alkaryl.

Abstract: Stiffening composition and method in which the strength, stiffness and application properties of thermoplastic synthetic polymer resin stiffening material are improved through combination with the resin of controlled proportions of glass microspheres and the composition is applied as a layer in molten condition on the portion of a shoe upper to be stiffened and is hardened by cooling.

Abstract: This invention is concerned with the treatment of particulate surfaces with a polyether substituted silicon compound which serves to enhance its employment in pigmented and/or filled paints and plastics, and in reinforced plastic composite compositions.

Abstract: Low abrasion, heat resistant, high strength friction material with a high resistance to wear is described as containing phenolic resin, an organic modifier, mineral fibers, metallic oxide, a filler and a color pigment. Rubber, either natural or synthetic, graphite and factice may also be present. The material finds particular use in a brake block for disc and drum brake applications on heavy duty trucks and the like.

Abstract: An improved binder composition for use in the foundry process comprises a mixture of low molecular weight essentially mononuclear methylolated phenols which are cured through a reaction with a polyisocyanate. In the preferred embodiment, a minor amount of polyether polyol, a mutual solvent and a catalyst, preferably an amine catalyst, is mixed with the phenolic component.

Abstract: Disclosed are water-dispersible dye/resin compositions in solid, semi-solid or viscous liquid form, useful, for example, in the preparation of water-based heat transfer printing inks and aqueous dye dispersions for conventional dyeing. These compositions are solutions (this term as used herein encompasses true solution, colloidal dispersion and suspension) of disperse dyes in, for example, copolyesters of 5-sodiosulfoisophthalic acid optionally blended with certain aliphatic or cycloaliphatic dicarboxylic acids. Exemplary are solutions of dyes in the copolyesters of isophthalic acid, 5-20 mole % based on moles of glycol of 5-sodiosulfoisophthalic acid, and diethylene glycol. Aqueous dye dispersions can be made with these dye resin compositions without grinding of the dye beyond rough pulverization of the dye cake.

Abstract: Thermoplastics reinforced with glass fiber mats contain from 10 to 60% by weight of such mats and from 5 to 60% by weight of a finely divided inert filler, the sum of the percentages by weight of glass fiber mats and filler being not greater than 70% by weight. The inert filler is a talc, having a foliated crystalline structure, which has a mean flake thickness of not more than 5 .mu.m and a ratio of mean flake diameter to mean flake thickness of from 5:1 to 500:1. When processing the thermoplastic filled with talc and glass fiber mats, homogeneous impregnation of the glass fiber mats with the filled thermoplastic is achieved.

Abstract: A cold-setting mixture for the production of casting moulds and cores comprises the following components, in parts by weight:Refractory filler -- 100Binder, viz., novolac phenol-formaldehyde resin -- 0.5 to 5.0Hardener, viz., polyisocyanate -- 0.005 to 1.0Organic solvent -- 0.5 to 5.0Hardening catalyst -- 0.0025 to 5.0The catalyst employed in this mixture is a composition which comprises silicates and aluminates of alkaline-earth metals, cements, slags of ferrochrome manufacturing process, nepheline slurry and basic salts, e.g. sodium carbonate.The catalyst due to easy proportioning thereof, makes it possible to reduce the cost of the mixture, reduce the amount of polyisocyanate required, and simplify the preparation of this mixture.The proposed cold-setting mixture has enhanced strength properties and improves the quality of casting mould and cores being made therefrom.

Abstract: Thermoplastic polyester molding compositions with improved heat distortion point contain, per 100 parts of a linear saturated polyester, from 1 to 100 parts of a rubbery graft copolymer, from 10 to 100 parts of an .alpha.-methylstyrene/acrylonitrile copolymer, and from 0 up to 80, preferably 10 to 80 parts of a filler, especially glass fibers as the filler. They can be converted to shaped articles by extrusion or injection molding.

Abstract: Flame retardant thermoplastic compositions containing polypivalolactone resin, an inorganic phosphate, and optionally a fiberglass filler and a polybrominated aromatic compound.

Abstract: A foundry core composition comprising a foundry aggregate, a resin base such as styrene-allyl alcohol copolymer or alkylene oxide derivative thereof, a polyisocyanate, and a catalyst therefor; the compositions being suitable for use in cold box, no-bake, and rapid no-bake processes.

Abstract: Process for dyeing linear polyesters in the melt in brilliant deeply colored and highly light-fast dyeings, which process comprises using as dyeing agent a mixture consisting of 0.001-0.2% by weight, relative to the amount of polyester, of a perylene-3,4,9,10-tetracarboxylic acid derivative, and one or more dyes which differ from this derivative and which are soluble in polymers.

Abstract: Molding compositon and molded products comprising polybutylene terephthalate containing thermally stable reinforcing fibers, such as glass fibers, mica and between about 5 and about 40 wt. % based on total weight of PBT molding composition of poly (butylene terephthalate-co-tetramethylene oxide). In a preferred embodiment, the composition also includes amorphous, thermally stable resins such as polymethyl methacrylate.