Abstract: An electrically insulating paint composition which is curable at low temperatures from about 60.degree. C. to about 100.degree. C., which comprises (A) an alkenyl group-containing, silanol group-free organopolysiloxane which is a copolymer of three kinds of siloxane units represented by the same general formula (R.sup.1).sub.a SiO.sub.(4-a)/2, wherein R.sup.1 represents an unsubstituted or substituted monovalent hydrocarbon residue, and a's in three different units represent 0, 1 and 3 respectively, said copolymer containing at least two alkenyl groups in a molecule; (B) an organopolyhydrogensiloxane which is a homo- or copolymer containing at least one siloxane unit represented by the general formula (R.sup.2).sub.b SiO.sub.(4-b)/2, wherein R.sup.2 represents hydrogen or an unsubstituted or substituted monovalent hydrocarbon residue, and b satisfies a relation 0.ltoreq.b.ltoreq.

Abstract: A reinforcing agent for vulcanizable rubber compounds comprises an anhydrous metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid having a crystalline structure consisting essentially of plates and fibers. Vulcanizable rubber compounds containing such reinforcing agents have improved physical properties over rubber compounds containing conventional metal carboxylic acid salts. Methods for the preparation of such anhydrous metal salts and methods for the reinforcement of vulcanizable rubber compounds therewith are also provided.

Abstract: A method for incorporating metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids into polymers and improving the cured physical properties of vulcanizable rubber compositions based on such polymers. The method includes the steps of preparing a polymer cement in a suitable organic solvent, forming a suspension of the metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in a suitable aliphatic hydrocarbon solvent miscible with the organic solvent, mixing the polymer cement and the suspension together and thereafter removing the solvents to provide the metal salt uniformly dispersed within the polymer.

Abstract: A thermally conductive silicone composition comprising:(A) 100 parts by weight of a polyorganosiloxane containing at least two silicon-bonded alkenyl groups per molecule and having a viscosity as measured at 25.degree. C. of 10 to 100,000 cP;(B) a polyorganohydrogensiloxane containing at least three silicon-bonded hydrogen atoms per molecule in an amount such that the number of silicon-bonded hydrogen atoms contained therein is 0.5 to 4.0 per alkenyl group contained in component (A);(C) a catalyst selected from the group consisting of platinum and platinum compounds, in an amount of 0.1 to 100 ppm by weight, in terms of the amount of platinum atoms, based on the amount of component (A);(D) 100 to 800 parts by weight of a heat transfer filler having an average particle diameter of 5 to 20 .mu.m and having a particle size distribution such that particles having a particle diameter of 5 .mu.m or less are 20% or more of the whole particles and particles having a particle diameter of 10 .mu.

Abstract: Active hydrogen-containing compositions having internal mold release components are used in a process in preparing molded polymeric products. In the process, the active hydrogen-containing composition contains (a) a primary or secondary amine, (b) a carboxylic acid or amido carboxylic acid salt of a group II metal or of aluminum, lithium, copper, iron, cobalt or nickel, and optionally (c) a carboxylic acid or amido carboxylic acid.

Abstract: Active hydrogen-containing compositions having internal mold release components for use in preparing molded polymeric products are disclosed which contain (a) a primary or secondary amine, (b) a carboxylic acid or amido carboxylic acid salt of a group II metal or of aluminum, lithium, copper, iron, cobalt or nickel, and optionally (c) a carboxylic acid or amido carboxylic acid.

Abstract: Internal mold release compositions for use in preparing molded polymeric products are disclosed which contain (a) a primary or secondary amine (b) a carboxylic acid or amido carboxylic acid salt of a group II metal or of aluminum, lithium, copper, iron, cobalt or nickel, and optionally (c) a carboxylic acid or amido carboxylic acid.

Abstract: A two component type polyurethane adhesive is provided for fiberglass reinforced plastics which requires no cleaning, preparation or treatment of the surface, and the like. The curative component is a nitrogen-free liquid polyether or polyester in an amount such that in association with a urethane prepolymer component containing free NCO groups, the ratio of the free NCO groups in the prepolymer component to the OH groups in said curative component is at least 1.2 and desirably at least 1.35. Such high NCO/OH ratios have unexpectedly been found to provide good adhesion and especially good humidity adhesion and peel strength adhesion to fiberglass reinforced plastics or metal surfaces which are free from any surface treatment.

Abstract: A polymeric composition of matter comprises a polymer having dispersed therein at least one of colloidal metal and metal oxide particles in the submicrometer size range, said composition being aqueous-free and free of aliphatic hydrocarbon polymers and their halogenated derivatives. Methods for preparing the dispersions of the invention are also disclosed.

Abstract: Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a polymer containing an ethylenically unsaturated monomer. The (co)polymers are substantially composed of:(a) 5 to 100 mole % of styrene and/or methyl styrene;(b) 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group;(c) 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group;(d) 0 to 40 mole % of hydroxalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and(e) 0 to 20 mole % of m methacrylic acid.The (co)polymers are grafted to a polymer of a number average molecular weight of 2000 to 10.

Abstract: Nylon 66 polymer is stabilized against heat and light during its preparation by conducting the polymerization in the presence of certain copper complexes, such as cupric amminohydroxide, and KBr and/or KI. Less metallic copper is formed during polymerization than if copper salts (e.g. copper acetate) are used instead of the copper complexes.

Abstract: Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a polymer containing an ethylenically unsturated monamer. The (co)polymers are substantially composed of:(a) 5 to 100 mole % of styrene and/or methyl styrene;(b) 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group;(c) 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group;(d) 0 to 40 mole % of hydroxyalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and(e) 0 to 20 mole % of methacrylic acid.

Abstract: A silicone crumb in a fine particulate form has an extrusion rate of at least 50 grams per minute through an orifice of 0.5 inch diameter under a pressure of 345 kilopascals and compression points of less than 1035 kilopascals. This crumb is made from a vinyl-containing polyorganosiloxane, a silicon-bonded hydrogen containing polysiloxane, and a platinum catalyst. The crumb is useful in hydraulic applications.

Abstract: A composition for artificial marble which comprises a polymer composition in which an inorganic substance and an organic polymer are firmly bound in one body and a vinyl compound, said polymer composition being obtained by polymerizing a polymerizable vinyl monomer, in the presence of at least one monomer selected from the group consisting of carboxylic acid monomer, sulfonic acid monomer, and sulfonate monomer, in an aqueous polymerization system containing an inorganic substance dispersed therein; and a processs for producing artificial marble from said composition by cast polymerization with the addition of a polymerization initiator.

Abstract: Novel photosensitive polymers having an intrinsic viscosity [.eta.] of not less than 0.10 dl/g, measured at 25.degree. C. in N,N-dimethylformamide, and consisting of 1 to 40 mol % of recurring structural elements of the formula I ##STR1## and 60 to 99 mol % of recurring structural elements of the formula II ##STR2## in which R, R', R", X, Z and Z.sub.1 are as defined in patent claim 1, are described. The polymers according to the invention can be partially complexed with metal ions of a metal of group VIII or Ib of the periodic table. In not less than 20% of the structural elements of the formula II, Z.sub.1 is --COO--C.sub.2-12 -alkylene--OH, --COO(CH.sub.2 CH.sub.2 O).sub.p H, --COO[CH.sub.2 CH(CH.sub.3)O].sub.p H, hydroxymethylphenyl, --CONH--C.sub.1-4 -alkylene--OH or --COO--C.sub.1-4 --alkylene--N(Q')(Q"), where p=2-4. The polymers according to the invention can be used, inter alia, for producing images, in particular for the construction of electrically conductive coatings or patterns.

Abstract: Mixing under low shear vinyl-containing polyorganosiloxane, a silicon-bonded hydrogen polysiloxane and a platinum catalyst, and continue mixing produces a crumb which has an extrusion rate of at least 50 grams per minute through an orifice of 0.5 inch diameter under a pressure of 345 kilopascals and compression points of less than 1035 kilopascals. The crumb is useful in hydraulic applications.

Abstract: A shielding composition has an electromagnetic wave shielding property and also an injection molding property. The composition comprises at least one kind of embedding material selected from a group consisting of plasticized vinyl chloride and acrylonitrile-butadiene-styrene resin, and copper or copper alloy fiber having a diameter of 1-100 .mu.m and a length of 0.5-10 mm embedded in said embedding material. The amount of the fibers is 30-70% by weight of the total composition.

Abstract: A polymer composition wherein an inorganic substance and an organic polymer are firmly consolidated, which is characterized by being produced by polymerizing a vinyl monomer susceptible to radical polymerization in a polymerization system containing a dispersed inorganic substance in the presence of at least one monomer selected from sulfonic acid monomers, sulfonate monomers, or carboxylic acid monomers represented by the general formula [I] ##STR1## wherein R.sub.1 is a hydrogen atom, alkyl group having 1 to 20 carbon atoms, phenyl group, derivative of phenyl group, or halogen atom, X is CONH, ##STR2## COO(CH.sub.2).sub.m or (CH.sub.2).sub.n (wherein R.sub.2 and R.sub.3 are each a hydrogen atom or alkyl group having 1 to 15 carbon atoms, R.sub.4 is an alkylene group having 1 to 15 carbon atoms, m is an integer of 1 to 20, and n is an integer of 0 to 20), and Y is a hydrogen atom, ammonium radical, or an alkali metal atom, or by the general formula [II] ##STR3## wherein R.sub.

Abstract: Energy absorbing polyurethane elastomer compositions having a density of from about 0.4 to about 1 gm/cc, a compression set of less than about 5% and a recovery time of from about 10 to about 100 milliseconds containing a light-weight filler are formed by reaction of a urethane-forming component comprising a compound containing at least four urethane-forming reactive sites and capable of forming stable complexes through unsatisfied urethane-forming reactive sites, an elasticizing polyol selected from the group consisting of diols and triols, and a diisocyanate in less than stoichiometric amounts.

Abstract: An ABS resin composition comprises 100 parts by weight of an ABS resin having a melt index of at least 4.0 g/10 min. and a rubber content of from 10 to 28% by weight and from 0.5 to 30 parts by weight of powder of at least one metal selected from aluminum, copper and an copper alloy.

Abstract: Rigid, non-elastomeric, non-cellular, amorphous metal reinforced urethane compositions and methods for preparing them; said composition characterized by high flexural strength and prepared by impregnating an amorphous metal reinforced material with a polyether-urethane prepared by admixing a blend of polyethers having an average functionality of from 4.0 to about 7.5 and an average hydroxyl number of from 300 to about 600, with an organic polyisocyanate and curing said impregnated amorphous metal reinforced material.

Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.

Abstract: A thermoplastic resin composition comprises 100 parts by weight of metal foil fragments, from 1 to 10 parts by weight of a first polymer covering the surfaces of the metal foil fragments and obtained by polymerizing at least one of monomers selected from the group consisting of acrylic acid, methacrylic acid, an alkylacrylate, an aminoalkylacrylate, an alkylmethacrylate and an aminoalkylmethacrylate in the presence of the metal foil fragments, and from 5 to 33 parts by weight of a second polymer obtained by polymerizing a mixture of an aromatic vinyl monomer and a monomer copolymerizable with the atomatic vinyl monomer. Also disclosed is a process for preparing the thermoplastic resin composition containing metal foil fragments.

Abstract: A polymer composition wherein an inorganic substance and an organic polymer are firmly consolidated, which is characterized by being produced by polymerizing a vinyl monomer susceptible to radical polymerization in a polymerization system containing a dispersed inorganic substance in the presence of at least one monomer selected from sulfonic acid monomers, sulfonate monomers, or carboxylic acid monomers represented by the general formula [I] ##STR1## wherein R.sub.1 is a hydrogen atom, alkyl group having 1 to 20 carbon atoms, phenyl group, derivative of phenyl group, or halogen atom, X is CONH, ##STR2## COO(CH.sub.2).sub.m or (CH.sub.2).sub.n (wherein R.sub.2 and R.sub.3 are each a hydrogen atom or alkyl group having 1 to 15 carbon atoms, R.sub.4 is an alkylene group having 1 to 15 carbon atoms, m is an integer of 1 to 20, and n is an integer of 0 to 20), and Y is a hydrogen atom, ammonium radical, or an alkali metal atom, or by the general formula [II] ##STR3## wherein R.sub.

Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.

Abstract: Water and a hydrated salt are both present to reduce the flammability of a flammable resin system, e.g. a capsule having two compartments each containing an interactive component and for use in e.g. a mine.

Abstract: A mixture of polydiorganosiloxane, aluminum hydrate, and gamma-type iron sesquioxide or ferroferric oxide can be cured to provide a silicone rubber with improved self-extinguishing properties and heat stability.