Abstract: The present invention is directed to mineral filled .alpha.-amino acid polymer composite materials. The composite materials are prepared by the in situ polymerization of an .alpha.-amino acid N-carboxyanhydride in the presence of mineral fillers which are optionally surface-modified with a partially hydrolyzed polyoxazoline prior to said polymerization. Composite materials prepared in this manner consist of an intimate mixture of polymer and mineral filler which may be optionally blended with a crosslinking agent and then molded to produce smooth, hard homogeneous materials that are water and oil resistant and have good heat distortion properties.

Abstract: A composite which has a high flexural strength to density ratio and which is resistant to strength loss incident to exposure to water, is formed by reinforcing unsaturated thermosetting resin with glass fibers sized with selected maleic anhydride adduct of polybutadiene utilized in critical amounts.

Abstract: A filled resin composition having thixotropic properties is prepared by blending (a) a liquid polyester resin, and (b) a solid filler (such as calcium carbonate), which has been treated with an effective amount of a polymer prepared from (1) an addition polymerizable organic monomer which does not contain an acid group and (2) an addition polymerizable acid. The preferred polymer is ethylene/acrylic acid.

Abstract: Filler particles are coated with an adduct of an unsaturated polymer, e.g. polybutadiene, and phosphinic acid groups. The coated filler may be prepared by reacting an unsaturated organic polymer with a phosphorus trihalide and applying the product in the form of a solution or dispersion in an organic solvent to mineral, e.g. calcium carbonate, particles. If liquid, the product may alternatively be applied as such to the mineral particles. In either case, the product so applied is then hydrolyzed in situ in order to form the phosphinic acid groups. The coated filler particles are useful in the reinforcement of elastomers.

Abstract: A flame resistant resin composition comprising (a) a synthetic resin, (b) red phosphorus coated with a thermosetting resin and (c) a filler. The coated red phosphorus is useful as a flame retardant for various synthetic resins, particularly thermoplastic polyesters such as polyalkylene terephthalates, and can impart the flame resistance to the resins without impairing heat stability and electric characteristics. The use of the coated rod phosphorus in combination with talc is particularly preferred.

Abstract: Reinforcements such as, for example, carbon fibers, are coated with a poly(arylene sulfide). The poly(arylene sulfide) is cured in place on the reinforcement. The reinforcement can be used in compositions such as, for example, poly(arylene sulfide) compositions.

Abstract: A thermosetting organopolysiloxane and organohydrogenpolysiloxane mixture containsa catalytic amount of platinum or a platinum compound finely dispersed in a solid substance at a concentration of 0.01-5% by weight calculated as platinum metal and based on the total weight of catalyst and solid substance, wherein the solid platinum-containing catalyst material has a melting point or softening point between 70.degree. and 250.degree. C., is practically immiscible with the organopolysiloxane and organohydrogenpolysiloxane mixture below the melting point or the softening point, and is finely dispersible therein.

Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.

Abstract: A composite material is provided by contacting a clay mineral having laminated aluminum silicate layers with an organic monomer to allow the organic monomer to be adsorbed on or intercalated between the aluminum silicate layers, and contacting the clay mineral with a silane compound having 2 to 4 chlorine atoms to promote polymerization of the organic monomer, thereby forming a composite material composed of a clay mineral having organic high polymer adsorbed thereon or intercalated therebetween. The composite material thus obtained has a strong chemical bond between inorganic clay mineral and organic high polymer.

Abstract: A process for treating fillers with a fluorosilicone compound comprising contacting a filler more preferably a silica filler with a fluorosilicone nitrogen compound. Such a treated filler is preferably incorporated in fluorosilicone room temperature vulcanizable silicone rubber compositions and heat vulcanizable silicone rubber compositions.

Abstract: A lightweight joint compound for use in finishing joints between gypsum wallboards, comprising a filler, a binder, a specially treated expanded perlite, a non-leveling agent, and a thickener.

Abstract: In an improved adhesive process the amount of azidosilane coupling agent necessary to adhere a siliceous material to a polymer is reduced. The siliceous material, the azidosilane coupling agent and the polymer are admixed with an organosilicon compound and then heated at a temperature and for a time sufficient to decompose the azide groups of the azidosilane coupling agent. The reduction in the amount of azidosilane coupling agent is accomplished without adversely affecting the adhesion of the polymer to the siliceous material. Also disclosed are the products thus produced.

Abstract: An aqueous coating composition is provided for filamentary materials that yields coated filamentary material with improved weavability and that yields reinforced elastomeric materials having improved properties of flexibility and fatigue resistance. The aqueous adhesive coating composition has a vinyl-pyridine-containing copolymer or terpolymer latex, a non-selfcrosslinkable elastomeric latex, a carboxylated butadiene polymer, and a phenolic aldehyde condensate polymer. The vinyl pyridine-containing elastomeric latex is produced from a vinyl pyridine-containing monomer, 1,3-diene hydrocarbon monomer or the terpolymer is produced in the same way with the addition of a vinyl containing monomer. The non-selfcrosslinkable elastomeric latex has a low gel content of less than around 40 weight percent and a low average particle size of less than around 2000 angstroms.

Abstract: An aqueous coating composition for filamentary materials that are to be used in reinforcing elastomeric matrix materials is provided that renders reinforced elastomeric materials having improved properties of flexibility and fatigue resistance. The aqueous adhesive coating composition has a vinyl-pyridine-containing copolymer or terpolymer latex, a phenolic aldehyde condensate polymer, and a non-self-crosslinkable elastomeric latex with a low gel content of less than around 40 weight percent and a low average particle size of less than around 2000 angstroms. The vinyl pyridine-containing elastomeric latex is produced from a vinyl pyridine-containing monomer, 1,3-diene hydrocarbon monomer or the terpolymer is produced in the same way with the addition of a vinyl containing monomer. In addition the aqueous adhesive coating composition may contain a wax emulsion, antioxidant, and carboxylated styrene butadiene copolymer latex.

Abstract: A method of producing sheet material consisting of clay, glass fibers and a latex resin and the product produced thereby.

Abstract: Composition and method of manufacturing same, wherein a vinyl chloride resin has talc therein in direct contact with vinyl chloride based polymer particles without any intervening material therebetween.

Abstract: Glass fibers for the production of reinforced polymers, characterized in that said fibers have a coating comprising, besides a film forming agent of polyolefinic kind and a silane, also a bis-maleamic acid such as N,N'-hexamethylene-bis-maleamic acid, N,N'-dodecamethylene-bis-maleamic acid or N,N'-isophoron-bis-maleamic acid.The invention also concerns blends consisting of 50-90% by weight of a crystalline polyolefin, e.g. polypropylene and 50-10% by weight of said coated glass fibers.

Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.

Abstract: A water absorbing composite comprises an inorganic powder, and a highly absorbent resin covering the whole surfaces of the individual particles of the inorganic powder. The resin is obtained by reacting with a basic substance a polymer containing as a monomeric constituent an .alpha.,.beta.-unsaturated compound having in its molecule one or two carboxyl groups, or one or two other groups convertible to a carboxyl group or groups, and by crosslinking the reaction product with a polyamine. The composite is useful as a water retaining agent for agriculture and horticulture, or as a dehydrating agent for oil.

Abstract: Optically clear silicone compositions comprising 100 parts by weight of at least one polydiorganosiloxane and 15 to 120 parts by weight of a hydrophobic reinforcing silica filler wherein substantially all of the surface-treated silica filler particles are sufficiently small in their largest dimensions such that a uniform 2.54 mm thickness of the composition possesses a haze value of less than 4% and a luminous transmittance value of at least 85% according to ASTM D1003-61. The refractive index of the polydiorganosiloxane does not have to be matched with that of the silica filler to obtain optically clear compositions. The haze value of certain of such compositions does not increase by more than 1% per 2.54 mm thickness when the composition is heated from 23.degree..+-.2.degree. C. to 100.degree..+-.5.degree. C. Optionally, curing agents and other additives can be present in the compositions. Optically clear cured elastomers useful as lenses or tubing can be prepared from such elastomers.

Abstract: The dental filler material is formed from a selection of one or more finely divided inorganic particles of, barium containing glass or zeolite crystals with up to 100% of such particles having a coating thereon of a polymerized acrylate containing monomers or oligomers. The dental composite is formed using the dental filler material and a methacrylate based polymeric resin binder system.

Abstract: An aqueous alkaline dispersion of a rubbery graft or over polymerized copolymer of a diene and a vinyl pyridine on a polyacrylate seed (core or substrate), said acrylate polymer having a Tg of not above about -20.degree. C., desirably also containing a polybutadiene, and a water soluble, heat reactable phenolic resin, in certain amounts is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 30 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.

Abstract: An aqueous sizing composition having a cationic lubricant, amide compound, and cationic silicone polymer aqueous emulsion which is used to produce wet chopped sized glass fiber strands or which also has a film former to produce continuous glass fiber strands. The moisture content of the wet chopped glass fiber strands is controlled to within about 9 to about 20 weight percent. The sized wet chopped glass fiber strands have good flowability and when used to produce non-woven glass fiber strand mat, produces mat with good flexibility and tensile strength.

Abstract: Improved polyoxymethylene molding compositions comprising fiber reinforcement such as glass, wherein the fiber reinforcement is surface treated with a vinyl polymer, such as polyvinylacetate.

Abstract: Complex compositions that comprise a cation guest and a polymer host are provided. The polymer host contains one or more cation-complexing segments that contain hetero atoms in a polydentate complexing array. At least two of the hetero atoms in the cation complexing segment comprise a cyclic ether selected from tetrahydrofuran 2,5-diyl units and tetrahydropyran 2,6-diyl units.

Abstract: Glass fiber sizing compositions and methods of making same and glass fibers containing dried residue of the sizing composition are provided that yield improved efficiencies, reduced migration, reduction in drying conditions, reduced cleaning time and improved housekeeping. The sizing composition, method and glass fiber strand involves the use of a high solids sizing composition having a water solubilized, condensation, cross-linkable, unsaturated polyester resin having free carboxyl groups either pendant or terminal or pendant and terminal and an amino-containing silane and an amount of water to yield a sizing composition having an amount of total solids in the range of about 18 to about 40 weight percent. In addition, other additives can be included in the sizing composition such as additional polyester resins, additional coupling agents, thermoplastic polymers, anti-static agents, film-former modifiers, wetting agents, stabilizers and lubricants.

Abstract: Glass fibers are treated with an aqueous treating composition having a lubricant and either a mixture of heat stable organic peroxide, vinyl-containing coupling agent and nonionic surfactant and optionally a film former such as polyvinylacetate or carboxylated compatible polymer film former like carboxylated polypropylene and an amino coupling agent. Other materials such as softeners, pigments and the like may be added to the aqueous treating composition. The treated glass fiber strands are used in the form of continuous glass strands or chopped strands or a mixture thereof to prepare glass fiber strand mat for use in reinforcing thermoplastic polymers. Thermoplastic polymers reinforced with mats made of the treated glass fiber strands of the present invention have improved stamping properties.

Abstract: A molding sand for use in a molding process employing a microwave radiation for curing the molding sand. The molding sand comprises a new sand, a carbonized resin coated sand and a thermosetting or thermoplastic resin. The carbonized resin coated sand is preferably subjected to a scrubbing treatment prior to the admixture thereof with the new sand.

Abstract: A new method of producing a silicone rubber composition yields a unique composition. When the composition is further mixed with extending filler and vulcanized, the tensile strength of the vulcanized silicone rubber is improved over that obtained when the composition is not produced following the method of this invention. The method mixes polydiorganosiloxane gum, treated reinforcing silica filler, a portion of hydroxylated organosilicon compound having an average of from 1 to 20 percent by weight hydroxyl radicals and an average of from 1 to 31 percent by weight vinyl radicals; heating the mixture; then cooling and admixing another portion of the hydroxylated organosilicon compound.

Abstract: Protective adhesive pastes for use with ostomy appliances which are formulated as mixtures of water-absorbing particulate hydrocolloid gums and organic solvent solutions of adhesive film-forming resins are provided with increased resistance to urine and intestinal fluids by incorporating a small amount of colloidal silica, preferably, fumed silica.

Abstract: Modified titanium oxide is prepared by polymerizing a mixture of vinyl chloride and a carboxylic monomer such as 10-undecenoic acid in the presence of titanium oxide. The thus obtained, modified titanium oxide is mixed with a vinyl chloride resin, typically, polyvinyl chloride to give a vinyl chloride resin composition having an improved weatherability and being substantially free of serious drawbacks accompanying the addition of conventional titanium oxide such as plating out during extrusion and decrease in extrusion throughput.

Abstract: This invention relates to the treatment of glass fibers and to compositions suitable for use in the treatment of glass fibers which comprise acid salts of polyester aminoorganosilanes and polyalkylene oxide polymers.

Abstract: A rubber-modified asphalt composition prepared by reacting a bituminous material with a polymerizable aromatic monomer and a rubbery polymer whereby the rubbery polymer is chemically integrated with the asphalt. The rubber-modified asphalt compositions of the invention can be used in the treatment of glass fibers as well as in road-paving applications, roofing applications and the like.

Abstract: The invention relates to the carbonylation of cross linked substituted and unsubstituted polysaccharides, their copolymers with macroporous synthetic polymers, macroporous synthetic polymers and rigid supports with pendant hydroxyalkyl groups. The carbonylated product can be used to prepare an affinity chromatography matrix which remains an uncharged species at varying pH's. The carbonylated product is also useful for the preparation of other compounds: Typical polysaccharides are agarose, starch, dextran, cellulose and regenerated cellulose, typical macroporous synthetic polymers are acrylamides, acrylates and methacrylates, typical rigid supports are silica beads coated with hydroxy alkyl groups and typical cabonylating agents are N,N'-carbonyl diimidazole; N,N'carbonyl di-1,2,3-benzotriazole; and N,N'-carbonyl di-1,2,4-triazole.

Abstract: This invention relates to compositions which may be stored under anhydrous conditions, but when exposed to atmospheric moisture, crosslink at room temperature to form elastomers. These compositions contain diorganopolysiloxanes having terminal condensable groups, a silicon compound having at least 3 Si-bonded hydrolyzable groups and an inorganic filler having a surface area of at least 20 m.sup.2 /g, in which at least a portion of the surface area of the inorganic filler has been modified by having polymerized thereon at least one compound of the general formulaHR.sup.1 C.dbd.CHX,where X represents a --CN group or a group of the formula --COOR.sup.2, R.sup.2 is an alkyl radical having from 1 to 4 carbon atoms and R.sup.1 represents hydrogen or a methyl group; or a mixture containing at least one such compound and at least one monomer which has been copolymerized with said compound.