Abstract: A room-temperature-curable organopolysiloxane composition having a highly durable adhesion that bonds well to various substrates, e.g. glass, plastics, and metals, through contact-curing and exhibits an excellent early-cure adhesiveness and that cures to give a silicone rubber that is highly water-resistant and exhibits long-term retention of its bonding strength even in hostile ambients, e.g. immersion in hot water, comprises a composition of a hydroxyl-terminated or alkoxy-terminated organopolysiloxane, an inorganic filler, a rosin ester in which the ester is a polyol, a reaction mixture from aminoalkylalkoxysilane and epoxyalkylalkoxysilane, and a curing catalyst.

Abstract: A liquid coating composition for the formation of a liquid crystal display element insulating film, which comprisesa) hydrolyzed product of tetraalkoxysilane of the general formula (1) below and trialkoxysilane of the general formula (2) below,b) an aluminum salt, andc) a deposition inhibitor, dissolved in an organic solvent.Si(OR).sub.4 (1)wherein R represents a C1-5 alkyl groupR.sup.1 Si(OR.sup.2).sub.3 (2)wherein R.sup.1 represents an alkyl, alkenyl or aryl group, and R.sup.2 represents a C1-5 alkyl group. The liquid coating composition according to the present invention is useful as an insulating film for a liquid crystal display element, as it exerts no adverse influence on the display property thereof.

Abstract: An ultraviolet-curing covering composition comprising Component A which is obtained by reacting a hydroxyl group-containing polyfunctional acrylate with a silane coupling agent containing an isocyanate group(s), Component B of a polyfunctional acrylate having 3 or more acryloyl groups in the molecule, Component C of a silica sol in an organic solvent, and Component D of a photopolymerization initiator. This composition forms a coating film shows excellent hardwearing properties and adhesion to plastic substrates after ultraviolet-curing. Blending Component E of an acrylic resin and Component F of a solvent to the composition forms a coating film which can be processed before curing.

Abstract: A poysiloxane resin composition includes a blend of silanols, colloidal silica, an ultraviolet-absorbing material, and a dye for correcting the color of a film formed from the resin composition. The silanols include a silanol from the group having the formula R.sub.w Si(OH).sub.x or R.sub.y Si(OR').sub.z where (w+x) or (y+z)=4, and R and R' are organic radicals without any crosslinking sites, silanol from the group having the formula R"Si(OR'").sub.3 where R" is a hydrogen atom or an organic radical and R"' is an organic radical containing a crosslinking site. The resin may be cured at 420.degree. F. The ultraviolet-absorbing material may be a benzophenone, a benzotriazole, or a benzothiazole. A process for forming the resin composition includes reacting the silanols and the ultraviolet-absorbing material under continuous agitation for about six hours.

Abstract: A thermosetting printing ink composition comprising a functional copolymer of a thermosettable polyester and a polysiloxane, a pigment, a crosslinking agent and a curing catalyst which may be a strong acid or a metal salt thereof. The composition desirably also includes a reactive diluent such as a glycol, glycol ether or alcohol. The compositions are especially useful for imprinting metal containers such as beer and soda cans.

Abstract: A curable resin composition comprising:(A) a compound having at least one curable acrylic radical, methacrylic radical or vinyl radial, or a mixture thereof;(B) an organic solvent containing an alcoholic organic solvent with an amount of not less than 40% by weight;(C) a compound having at least one pentavalent P with phosphoryl bonding; and(D) a polymerization initiator whichwhen coated on the surface of molded inorganic or organic materials, the coating shows superiority in curing under atmosphere and the cured composition has excellent adhesion, surface hardness, resistance to scratch, resistance to abrasion, surface luster, transparency and antistatic property.

Abstract: An internally plasticized polyvinyl halide obtained by the polymerization of a vinyl halide monomer in the presence of a polyester polymeric plasticizer substantially derived from glutaric acid and a diol. Articles made therefrom exhibit a unique balance of improved permanence, low plasticizer extraction high clarity and low haze. The polymers are particularly suitable for use in automotive interior parts or containers for blood components or foodstuffs.

Abstract: An internally plasticized polyvinyl halide obtained by the polymerization of a vinyl halide monomer in the presence of a polyester polymeric plasticizer substantially derived from glutaric acid and a diol Articles made therefrom exhibit a unique balance of improved permanence, low plasticizer extraction high clarity and low haze. The polymers are particularly suitable for use in automotive interior parts or containers for blood components or foodstuffs.

Abstract: A butadiene heteropolymer latex is prepared by emulsion polymerizing appropriate monomers in the presence of polyvinyl alcohol and a stabilizing solvent. The butadiene heteropolymer can be a butadiene copolymer or terpolymer prepared from butadiene monomers and comonomers such as .alpha.-haloacrylonitrile and acrylic acid. The butadiene heteropolymer latices can be prepared without problems of coagulation and can be utilized effectively in adhesive compositions without the use of volatile solvents. Adhesive bonds prepared from the butadiene heteropolymer latices also avoid the side effect problems associated with polymers prepared utilizing conventional surfactant-based emulsion polymerization techniques.

Abstract: A permanent fogging system comprising a selected amount of a reactive free-radical polymerizable acrylic or substituted acrylic monomer, a low molecular weight glycol carrier and an effective amount of a free radical initiator.Another embodiment involves a method of sealing a pipeline by spraying or applying the fogging or misting system described above.

Abstract: A primer composition comprising:(A) an organosilicon compound formed by binding an organosilicon compound represented by the general formula (I): ##EQU1## wherein R.sup.1 represents a monovalent hydrocarbon group; X represents a hydrogen atom, a lower alkyl group, etc.; and 0.ltoreq.a<0.2, 0.ltoreq.b<0.2 and 1<c<4,with an organopolysiloxane represented by the general formula (II): ##EQU2## wherein R.sup.2 represents a monovalent hydrocarbon group containing no aliphatic unsaturated group; R.sup.3 represents an alkenyl group; Y represents a hydrogen atom, a lower alkyl group, etc.; and 1.8<d<2.2, 0.004<e<0.2 and 0.ltoreq.f<0.2,in a particular proportion;(B) an organic titanate; and(C) an organic solvent.This primer composition achieves adhesion with good durability at high temperatures, particularly in high temperature oils.

Abstract: This invention relates to fatty acid modified alkyd resins and the use thereof in formulation of high solids interior and exterior paints capable of curing at ambient temperatures without the use of appreciable amounts of solvent. More specifically, the invention relates to high solids alkyd coatings derived from fatty acid oil modified alkyd resins having low viscosities capable of forming finishes that have good physical characteristics such as high gloss, resistance to humidity, excellent adhesion and a good hardness. These oil modified alkyd resins have number average molecular weights of less than about 6,000 and are derived from the polymerization of drying oil fatty acids, dibasic aromatic acids, polyols, at least one unsaturated monocarboxylic acid and an unsaturated monohydric alcohol.

Abstract: A coating composition comprising a colloidal silica, a partial condensate of organoalkoxysilane hydrolyzate, a polymer or a copolymer of unsaturated ethylenic monomers, a surface active agent and glycol derivatives, which is coated on a wheel for vehicles shows excellent properties such as adhesive property, filiform corrosion resistance, stain resistance, weather-resistance and impact resistance. A wheel coated with the coating composition for vehicles also shows excellent properties such as filiform corrosion resistance, stain resistance, weather-resistance and impact resistance.

Abstract: Finely divided water insoluble solid particles free of ionic charges and ranging in size from about 0.01 to several hundred microns or higher, including but not limited to paint pigment particles, are given a generally uniform polymeric encapsulation by admixing such particles in an aqueous reaction medium with a water insoluble monomer polymerizable to form a generally water insoluble polymer free of ionic charges in the presence of a nonionic surface active stabilizing agent, preferably a polyethoxylated alkyl phenol containing at least about eight carbon atoms in the alkyl group thereof and preferably at least about 40-50 ethylene oxide groups per molecule, and polymerization of the monomer is then initiated, usually with heating, with a redox polymerization initiating system which is free of ionic groups and does not decompose to release ionic groups in the reaction medium.

Abstract: The present invention is directed to a stable dispersion of a polyurea and/or a polyhydrazodicarbonamide in a relatively high molecular weight hydroxyl-group containing material, which dispersion has a solids content of from 5 to 50 percent by weight and which is obtained by reacting(a) an organic di- and/or polyisocyanate with(b) an amine-functional material comprising an addition product of(1) acrylonitrile and(2) a member selected from the group consisting of(i) hydrazine,(ii) aliphatic di- or polyamines containing at least two primary amino groups,(iii) cycloaliphatic di- or polyamines containing at least two primary amino groups,(iv) araliphatic di- or polyamines containing at least two primary amino groups, and(v) mixtures thereof,the ratio of (1) to (2) being at least one mol of (1) per mol of (2) and at most one mol of (1) for each nitrogen atom contained in (2) per mol of (2),the reaction of component (a) and component (b) being conducted at a temperature of from 30.degree. to 170.degree. C.

Abstract: Finely divided water insoluble solid particles free of ionic charges and ranging in size from about 0.01 to several hundred microns or higher, including but not limited to paint pigment particles, are given a generally uniform polymeric encapsulation by admixing such particles in an aqueous reaction medium with a water insoluble monomer polymerizable to form a generally water insoluble polymer free of ionic charges in the presence of a nonionic surface active stabilizing agent, preferably a polyethoxylated alkyl phenol containing at least about eight carbon atoms in the alkyl group thereof and preferably at least about 40-50 ethylene oxide groups per molecule, and polymerization of the monomer is then initiated, usually with heating, with a redox polymerization initiating system which is free of ionic groups and does not decompose to release ionic groups in the reaction medium.

Abstract: A stable dispersion of a polymer in a polyol is prepared by reacting an organic polyisocyanate with a short-chain polyol in a high molecular weight polyol containing a relatively high primary hydroxyl group content, the ratio of the content of primary hydroxyl groups in the short-chain polyol to that in the high molecular weight polyol being at least a critical lower limit of about 3.5. The reaction is further carried out in the presence of a small proportion of water to achieve a reduction in the viscosity of the resulting dispersion. The dispersion is used in preparing high resilience polyurethane foam having desirable physical properties and which is of utility in a wide variety of cushioning applications.

Abstract: This invention relates to polymer dispersions prepared by the in situ polymerization of an ethylenically unsaturated monomer or mixture of monomers in a chain extender in the presence of a free radical polymerization initiator and a polyamide stabilizer. The invention also relates to mixtures of the polymer dispersions with compounds having two or more active hydrogen atoms as determined by the Zerewittinoff method. These mixtures are used to prepare polyurethane products.

Abstract: A water-soluble pressure-sensitive adhesive composition is described containing a polymerization product obtained by the solution polymerization of a water-soluble ethylenically unsaturated monomer in the presence of an alcoholic plasticizer having a molecular weight of less than about 3,000 and which is a liquid at room temperature, selected from the group consisting of polyether polyols and polyhydric alcohols, wherein the polymerization product contains as a polymer component at least an addition copolymer of the water-soluble ethylenically unsaturated monomer and the alcoholic plasticizer.

Abstract: The abrasion resistance of siliceous filler-reinforced rubber vulcanizates is improved by adding to the unvulcanized rubber composition a silane coupling composition comprising a mixture of a silane coupling agent, such as(a) organic silane compounds containing an internal active olefinic linkage,(b) bis(alkoxysilylalkyl)polysulfides,(c) haloalkylsilanes, and(d) silane compounds containing a vinyl functional group in the organofunctional portion of the compound, and an alkyl alkoxysilane, such as methyltrimethoxysilane. The silane coupling agent is present in coupling amounts, e.g., between 0.1 and 50 parts per hundred parts of rubber, and the weight ratio of mercaptosilane to alkyl alkoxysilane is between 0.15:1 and 15:1. Preferably, the silanes are in a ratio of about 1:1, are admixed with a hydrocarbon process oil and the oil-silane mixture added to the siliceous filler-rubber mixture.

Abstract: A process is provided for making a liquid composition of a perfluorinated polymer having sulfonic acid or sulfonate groups in a liquid medium by contacting the polymer with a mixture of 25 to 100% by weight of water and 0 to 75% by weight of a second liquid component such as a lower alcohol, e.g., propanol or methanol, at a temperature of at least 180.degree. C. (at least 240.degree. C. when about 90% to 100% water is used), in a closed system. The liquid composition made by this process, or modified liquid products prepared therefrom, are used in coating various substrates, in casting films, and in repairing perfluorinated ion exchange films and membranes. The process is also useful in recovering perfluorinated polymer having sulfonic acid or sulfonate groups from scrap and used articles made of such polymer or containing such polymer as a component part thereof.

Abstract: What is disclosed are hard, abrasion resistant, tintable/dyeable coating compositions which are based on siloxane/silica hybrid coating resins. These materials are especially useful on transparent plastic substrates.

Abstract: A process for preparing a solution of a copolymer of a vinylpyridine and an ethylenically-unsaturated copolymerizable vinylbenzyl quaternary salt is disclosed. The process comprises polymerizing, in the presence of a polymerization medium comprising water and a lower alcohol, a vinylpyridine and a copolymerizable vinylbenzyl quaternary ammonium salt having the formula ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is independently alkyl; substituted alkyl; cycloalkyl; aryl; aralkyl; alkaryl, or at least two of R.sup.1, R.sup.2 and R.sup.3 together with the quaternary nitrogen atom to which they are bonded complete a saturated or unsaturated, substituted or unsubstituted nitrogen-containing heterocyclic ring. The process provides the desired copolymer in the form of a clear solution useful in the formation of polymeric coatings or layers utilized as image-receiving layers in photographic products and processes.

Abstract: Finely divided water insoluble solid particles free of ionic charges and ranging in size from about 0.01 to several hundred microns or higher, including but not limited to paint pigment particles, are given a generally uniform polymeric encapsulation by admixing such particles in an aqueous reaction medium with a water insoluble monomer polymerizable to form a generally water insoluble polymer free of ionic charges in the presence of a nonionic surface active stabilizing agent, preferably a polyethoxylated alkyl phenol containing at least about eight carbon atoms in the alkyl group thereof and preferably at least about 40-50 ethylene oxide groups per molecule, and polymerization of the monomer is then initiated, usually with heating, with a redox polymerization initiating system which is free of ionic groups and does not decompose to release ionic groups in the reaction medium.