Abstract: A method for preventing or reducing the marine life buildup on a submerged surface by applying to the surface an antifouling coating composition comprising a combination of a silicone fluid and a silicone resin.

Abstract: Improved thermoplastic compositions characterized by high tensile elongation values are described. They comprise polyphenylene ether resin, a hydrogenated elastomeric block copolymer having an A-B-A' structure, with specific molecular weight values for the copolymer blocks and a phenylsiloxane fluid of particular composition. Electrical conductor articles which include polymerized thermoplastic compositions as mentioned above represent another embodiment of this invention.

Abstract: Organosiloxane compositions curable by a platinum-catalyzed hydrosilation reaction contain as the adhesion promoter a silane comprising an silicon-bonded alkenyl radical containing at least five carbon atoms and at least one alkoxy group. The silane or a hydrolysis-condensation product thereof is optionally used in combination with a catalyst that promotes reaction of the silane with groups present on the surface of the substrate to which bonding is desired.

Abstract: Disclosed is a novel polypropylene resin composition which is outstandingly free from surface tackiness and still has good transparency so as to be useful as a material of resin films used for wrapping. The resin composition comprises, as a uniform blend, (a) 100 parts by weight of a polypropylene resin, and (b) from 0.01 to 10 parts by weight of an inorganic oxide powder which is a product obtained by the deflagration of an inorganic oxidizable powder, e.g., an elementary silicon powder, in an oxidizing atmosphere such as air. By virtue of the unique method for the preparation of the silicon dioxide powder, the particles have high surface activity so that the surface properties of the resin composition or, in particular, resin films prepared therefrom can be greatly improved even with a relatively small amount of the inorganic oxide powder compounded as an anti-blocking agent not to badly affect the transparency.

Abstract: When a dispersion of oxide ceramic particles in certain volatile organic solvents is mixed with less than about 2 percent by weight (based on the weight of particles) of an oligomeric polysiloxanol dispersant, and the dispersion allowed to settle, the oligomer provides a multiplicity of OH groups, many of which are available for interactive bonding to the surfaces of the particles. The net result is that the particles settle more slowly; also, the sediment has a density higher than that of sediment from a dispersion of the same particles in the same solvent mixed with the monomeric silane from which the oligomer was formed. Exceptionally dense and strong "tape", for making sintered circuitized multilayered ceramic structures, is produced by capitalizing on this phenomenon. The effectiveness of the oligomer is predicated upon the prehydrolysis of the siloxane, prior to forming the dispersion.

Abstract: A process for producing a polyolefin thermoplastic elastomer composition having superior rubbery elasticity, mechanical properties, etc. and also having improved processing fluidity, workability, etc. is provided, which process comprises blending(A) 40 to 80% by weight of an ethylene-propylene copolymer rubber and/or an ethylene-propylene-diene terpolymer, as a soft segment component,(B) 60 to 20% by weight of a crystalline ethylene-propylene block copolymer having an ethylene content of at least 5% by weight and a melt flow index of 0.5 to 30 g/10 minutes or a crystalline ethylene-propylene random copolymer having an ethylene content of at least 1.5% by weight and a melt flow index of 0.5 to 30 g/10 minutes, each as a hard segment, and based upon 100 parts by weight of the total of (A) and (B),(C) 0.3 to 5 parts by weight of an organosilane,(D) 0.

Abstract: The polyarylene sulfide resin composition is improved in impact strength and rigidity and useful as engineering plastics. It is prepred by mixing 100 parts by weight of a resin component comprising(A) 99 to 20 parts by weight of a polyarylene sulfide resin and(B) 1 to 80 parts by weight of a polyamide resin with(C) 0.5 to 50 parts by weight of an olefin copolymer comprising an .alpha.-olefin and a glycidyl ester of an .alpha., .beta.-unsaturated acid,(D) 0.01 to 5 parts by weight of an alkoxysilane compound and(E) 0 to 400 parts by weight of one or more fillers selected from among fibrous, powdery and flaky ones.

Abstract: A water and oil repellent composition containing, as an essential component, non-film-forming fine solid particles having a low surface tension and having a fluorine content of at least 30% by weight.

Abstract: Silicone hydraulic compositions, comprising a polydimethylsiloxane fluid and a phenylmethylsiloxane/dimethylsiloxane copolymer having a viscosity at least ten fold greater than said polydimethylsiloxane fluid and having a molar phenylmethylsiloxane content of about 4.5 percent to about 7 percent are disclosed. The fluids exhibit a reduced viscosity temperature coefficient (VTC) relative to conventional polydimethylsiloxane oils and are useful in hydraulic applications such as viscous coupling and viscous damping.

Abstract: The present flame retardant compositions of polypropylene resin contains polypropylene as a principal constituent and the following constituents making a total of 100 wt %: (A) silane coupling agent and/or (D) olefinic synthetic rubber, (B) ammonium polyphosphate or melamine-modified ammonium polyphosphate, and (C) one or more nitrogen organic compounds which are producible nonflammable gas products and carbonaceous residues by the pyrolysis of the mixture.Further, the other compositions of polypropylene resin contains (E) polyethylene resin along with the above constituents making a total of 100 wt %.Moreover, the other compositions contains (E) polyethylene resin, and (F) crosslinking agent and (G) thiophosphite along with above constituents making a total of 100 wt. %.

Abstract: Good quality films can be formed on a substrate by coating a substrate with a solution comprising a liquid silicate solvent containing a dissolved photocurable arylsiloxane oligomer or polymer. Phenyl silocane/silicate compositions can be used to form photocurable films on substrates for use as dielectric films, protective coatings, and the like.

Abstract: A composition useful in the manufacture of cable comprising:(i) a crosslinkable thermoplastic resin;(ii) a metal hydrate flame retardant compound;(iii) an organic peroxide crosslinking compound, which decomposes at a temperature of at least about 140.degree. C., but below the decomposition temperature of the polymer; and(iv) an unsaturated silicone fluid.

Abstract: An aqueous glass size composition comprising a water dispersible phenoxy resin modified with an acid, cyanurate or isocyanurate, and an organosilane coupling agent is disclosed. The glass fibers coated with the aqueous size composition are useful for incorporation into molding compositions for strength improvement.

Abstract: Disclosed is a casting resin based on acrylic acid esters having a high content of finely dispersed fillers and containing a mixture of organosilicon compounds having functional groups and metallic acid esters of metals of Groups IVB and VB of the Periodic Table of the Elements. The functional group of the organosilicon compound is ethylenically unsaturated and bound to the silicon atom either directly or through alkylene groups. The addition of this mixture to the casing resins produces a desirable reduction of the viscosity of these resins, which are used, for example, for the manufacture of sanitary articles.The filler content is at least 20% and can be as high as 95% with the proviso that when the filler content is in excess of 80 wt. -%, the filler contains 10 to 30 wt. -%, based on the total weight of filler, of fines having a particle size less than 0.1 mm and the remainder of the filler being coarse up to 4 mm.

Abstract: An aqueous solution of suspension of glycidoxypropyl silanol and polydimethyl siloxanes having a number average molecular wieght of more than 100,000 and their use as mold release agents with good release values over a relatively large number of molding cycles in the molding of rubber and plastics.

Abstract: A curable silicone composition comprising:(A) an organopolysiloxane having at least two silicon-bonded aliphatic unsaturated hydrocarbon radicals in its molecule;(B) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms in its molecule;(C) a platinum family metal catalyst; and(D) a nonionic surface active agent having a hydrophobic silicone portion and at least one hydrophilic polyol portion in its molecule. The curable silicone composition gives cured products having good hydrophilic properties and dimensional stability, and are especially suitable for use as a dental impression material.

Abstract: Isocyanate-reactive polymers having terminal enamino-functional groups are obtained by reacting ammonia or primary or secondary amines with polymers having terminal .beta.-ketoester groups which are themselves obtained by reaction of polyols with .beta.-ketoesters such as ethyl acetoacetate.

Abstract: Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising one or more polyphenylene ethers, one or more polyamides and a property improving silane derivative compound having in the molecule both (a) at least one silicon bonded to a carbon through an oxygen link and (b) at least one ethylenic carbon-carbon double bond or carbon-carbon triple bond and/or functional group selected from the group consisting of an amine group or a mercapto group, with the proviso that the functional group is not directly bonded to a silicon atom. These compositions may further comprise a polymeric impact modifier therefore and/or an inorganic reinforcing additive and/or other polymers including alkenyl aromatic polymers.

Abstract: Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising one or more polyphenylene ethers, one or more polyamides and a property improving silane derivative compound having in the molecule both (a) at least one silicon bonded to a carbon through an oxygen link and (b) at least one ethylenic carbon-carbon double bond or carbon-carbon triple bond and/or functional group selected from the group consisting of an amine group or a mercepto group, with the proviso that the functional group is not directly bonded to a silicon atom. These compositions may further comprise a polymeric impact modifier therefore and/or an inorganic reinforcing additive and/or other polymers including alkenyl aromatic polymers.

Abstract: An improved self-bonding curable organopolysiloxane composition which contains (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a platinum-type catalyst, (D) a carbonyl complex of a Group VIB element, and (E) a compound containing a silicon-bonded alkoxy group which is selected from the group consisting of silanes or siloxane oligomers. Examples of the carbonyl complex are molybdenum hexacarbonyl, tungsten hexacarbonyl, and chromium hexacarbonyl.

Abstract: A basing cement composition is disclosed. The basing cement composition of the invention includes an insulating binder, an inert filler material, a solvent, and silicone ether. The silicone ether is included in the basing cement composition in an amount greater than 0, up to about 5 weight percent. Preferably, the silicone ether is added to the basing cement composition in solution form.

Abstract: A coating composition which cures at ambient temperatures and contains 20-80% by weight of a binder and 80-20% by weight of a solvent for the binder, wherein the binder contains about:A. an acrylic polymer A of polymerized monomers of methyl methacrylate and monomers of styrene, alkyl methacrylate and/or alkyl acrylate each having 2-12 carbon atoms in the alkyl group and said polymer having pending from the polymer backbone aminoester groups, hydroxy aminoester groups or hydroxyamine groups,B. an acrylic crosslinking polymer B of polymerized monomers of at least 3% by weight, based on the weight of the crosslinking polymer, of a glycidyl constituent of glycidyl methacrylate or acrylate and the remainder of the monomers are alkyl methacrylate an acrylate each having 1-12 carbon atoms in the alkyl group and optionally contains at least 3% by weight, based on the weight of the crosslinking polymer, of an alkyl methacrylate or acrylate having a pendent group of the formula ##STR1## C.

Abstract: Organopolysiloxane compositions that are storage-stable under anhydrous conditions, but curable into elastomeric state in the presence of moisture and, thus, are well suited as sealants and coatings and which particularly strongly adhere to substrate used in the construction industry, contain at least one .alpha., .omega.-dihydroxydiorganopolysiloxane polymer; at least one acyloxysilane crosslinking agent therefor; a bonding agent including admixture, or reaction product of, (i) an aminoorganosilicon compound containing a primary amine group, with (ii) an organosilicon compound containing an epoxy functional group; and, advantageously, a filler material and a curing catalyst.

Abstract: Diorganopolysiloxanes containing itaconate functional groups include at least one recurring structural unit of the formula (1): ##EQU1## in which a is 1 or 2; the symbol Z is one of the radicals --CH.sub.2 CH(COOR')CH.sub.2 COOR' and --C(CH.sub.3)(COOR')CH.sub.2 COOR'; the symbols R, which may be identical or different, are each a C.sub.1 -C.sub.20 alkyl, vinyl, phenyl or 3,3,3-trifluoropropyl radical, and, in the case where a=2, one of the radicals R may be a hydroxyl group; and the symbols R', which may be identical or different, are each a C.sub.1 -C.sub.12 monovalent hydrocarbon radical or a C.sub.2 -C.sub.12 monovalent alkoxyalkyl radical, and are useful, e.g., as PVC lubricants and hydraulic fluids; they are facilely prepared by hydrolysis/polycondensation or by hydrosilylation.

Abstract: Liquid organosiloxane compositions that cure by a hydrosilylation reaction and contain from 0.1 to about 2 weight percent of a low molecular weight polymethylvinylsiloxane cure to form adhesives that are sufficiently flexible to retain cohesive bonding between substrates exhibiting different coefficients of thermal expansion when the resulting composite is exposed to variations in temperatures during use. The flexibility of the cured adhesive is further increased by addition to the curable compositions of a liquid polydimethylsiloxane having a silanol group at one of the two terminal positions and a triorganosiloxy group at the second terminal position. Preferred compositions are packaged in at least two parts, with the organohydrogensiloxane and the hydrosilylation catalyst being located in different parts of said composition.

Abstract: Flame retardant aromatic polycarbonate blends are provided which are capable of being tested V-O under UL-94 test conditions. A triarylsilicon material such as triphenylsilanol is incorporated into the aromatic polycarbonate to provide transparent, flame retardant compression moldable thermo-plastics capable of satisfying the UL-94 V-O requirement at 1/16".

Abstract: Organopolysiloxane compositions curable into elastomeric state, whether in single- or two-component form, comprise an .alpha., .omega.-dihydroxypolydiorganopolysiloxane oil, a crosslinking agent therefor, optionally, inorganic fillers and an adhesion promoter, and a catalytically effective amount of a pentacoordinated tin monochelate produced by reacting a tin bischelate with an organic carboxylic acid.

Abstract: An improved electrically conductive polydiorganosiloxane of the type comprising a polydiorganosiloxane and conductive carbon particles has been developed. The improved electrical conductivity results from the addition of a conductivity improver comprising disilazane of the formula (R.sub.3 Si).sub.2 NH where R is a substituted or unsubstituted alkyl radical of from 1 to 6 carbon atoms or hydroxyl endblocked polymethylphenylsiloxane.

Abstract: The addition-curable composition of the present invention, because it comprises a special component as component (D), is characterized by an excellent bonding to any of various substrates with which it is in contact during curing. Component (D) is a mixture, or reaction product, of (a) a silicon-free compound which contains at least 1 alcoholic hydroxyl group and at least 1 alkenyl group in each molecule, and (b) an organosilane having in each molecule at least 1 alkoxy group and at least 1 epoxy or methacryloxy or acryloxy group.

Abstract: A process for improving properties of a synthetic resin powder which comprises: subjecting a latex of a graft-copolymer whose back bone is a rubber to coagulation, and adding a silicone oil to the graft-copolymer in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of said graft-copolymer. According to the present invention, the bulk specific gravity of a synthetic resin powder can be made large, the flowability and blocking resistance can be remarkably improved in comparison with known methods. Accordingly, the blocking during storage can be prevented, a line for transport is not packed with the resin powder, it is possible to automatically weigh the resin powder, and it is applicable to the tendency to grow larger in transport.

Abstract: Fluid polymer/polyol dispersions are prepared from novel polyether polyols.

Abstract: A high tenacity fiber for reinforcing plastic composites, the fiber being selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof. The fiber is treated with a composition consisting essentially of an organofunctional silane in an amount sufficient to achieve 0.02 to 1.0 weight percent of the silane on the fiber, and a diluent which provides for the hydrolysis of the silane to a silanol. The fiber is used to reinforce a plastic composite additionally comprising a resin matrix.

Abstract: A lacquer system which essentially comprises a silicic acid heteropolyconsate, a flake-shaped or lamellar filler, a solvent and, if appropriate, a conventional synthetic resin for lacquers is suitable for producing anti-corrosion coatings, especially on glass surfaces.

Abstract: Curable casting resins comprising a liquid or liquefiable curable organic polymer precursor, a high content of finely divided inorganic filler, and a polymerizable organosilicon component as an adhesion promoter, the liquid phase formed from the organic components containing lecithin in amounts from 0.01 to 5 percent by weight of the casting resin.

Abstract: Resilient, crosslinked silicon elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicon-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.

Abstract: Novel compatibilized polyphenylene ether-polyamide compositions are provided by this invention, comprising polyphenylene ether resin, polyamide resin, a compatibilizing agent, and a melt flow-improving compound. The compatibilizing agent may be selected from a wide variety of materials, such as saturated aliphatic polycarboxylic acids or derivatives thereof; various silane compounds; and functionalized polyphenylene ethers. A specific example of a compatibilizer is citric acid. Specific examples of melt flow-improving compounds are stearic acid, oleic acid, and linolenic acid.

Abstract: Diorganopolysiloxanes having the formula: ##STR1## are especially useful for the stabilization of polyvinyl chloride-based polymers.

Abstract: A method for making curable casting resins having a high content of finely divided inorganic fillers and comprising esters of acrylic or methacrylic acid and organosilicon compounds used as adhesion promoters, which method involves mixing the liquid polymer precursor comprising acrylic or methacrylic esters with the organosilicon compound and with an alkylamine as a catalyst for the organosilicon compound, the finely divided inorganic fillers being incorporated into the resulting mixture in such amounts that the viscosity of the mixture does not exceed 10 Pa.sec, the resulting thixotropic suspension then being transformed into a completely deflocculated low viscosity suspension by being allowed to stand for a sufficient length of time at room temperature or by short term heating.

Abstract: The subject invention relates to polytetramethylene adipamide resin compositions containing 100 parts by weight of the polyamide and 2 to 20 parts by weight of a silicon oil. Objects produced from the composition possess good surface appearance, excellent sliding properties and high heat resistance and rigidity.

Abstract: A solvent soluble fluorine-containing polymer according to the present invention is a copolymer characterized by(i) consisting substantially of(a) fluoroolefin,(b) vinyl ether, and(c) an organosilicon compound having an olefinically unsaturated bond and a hydrohyzable group,(ii) said copolymer comprising, based on the total mole number of said (a)-(c) in the copolymer, 30-70 mol % of (a), 20-60 mol % of (b) and 1-25 mol % of (c) and(iii) said copolymer having a number average molecular weight (Mn) of 3000-200000 as measured by gel permeation chromatography.Further, according to the present invention, a coating composition having excellent weathering resistance and solvent resistance comprising the above-mentioned solvent soluble fluorine-containing polymer and organic solvent is also provided. In addition a coating process of said coating composition is also provided.

Abstract: A high tenacity fiber for reinforcing plastic composites, the fiber being selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof. The fiber is treated with a composition consisting essentially of an organofunctional silane in an amount sufficient to achieve 0.02 to 1.0 weight percent of the silane on the fiber, and a diluent which provides for the hydrolysis of the silane to a silanol. The fiber is used to reinforce a plastic composite additionally comprising a resin matrix.

Abstract: The adhesion of organopolysiloxane compositions curable by a platinum catalyzed hydrosilation reaction to various substrates, particularly plastics, is improved by the presence in said compositions of (1) an organosilicon compound containing an ethylenically unsaturated group and at least one alkoxy group and (2) at least one member from a specified class of compounds of aluminum or zirconium.

Abstract: A rubber-modified styrene resin composition is disclosed, comprising (A) a rubber-modified styrene resin having dispersed therein from 1 to 15% by weight of a rubbery polymer having an average particle size of from 0.1 to 2.5 .mu.m, (B) an organopolysiloxane in an amount of from 0.01 to 0.2% by weight on silicon conversion based on the rubber-modified styrene resin, and (C) an ethylene-unsaturated carboxylic acid ester copolymer in an amount of from 0.05 to 10% by weight based on the rubber-modified styrene resin. The composition exhibits markedly improved areal impact strength while retaining other physical properties and is, therefore, useful for exterior parts.

Abstract: Organopolysiloxane compositions comprising a polyorganosiloxane having olefinic unsaturation, an organohydrogen polysiloxane and a catalyst, exhibit improved adhesion to a number of substrates when it also comprises an organosilane of the general formula R'(RO).sub.2 SiR", wherein R denotes a monovalent hydrocarbon group, R' denotes an aliphatically unsaturated hydrocarbon or hydrocarbonoxy group and R" denotes an epoxy functional group. The organopolysiloxane compositions also exhibit reduced thixotropy over prior art compositions especially when a reinforcing silica filler is also present.

Abstract: The coating composition, e.g. paints and lacquers, prepared according to the invention is imparted with greatly improved surface properties of the coating film formed therefrom in respect of the resistance against peeling of the coating film and decreased blocking by virtue of the unique additive which is an organopolysiloxane having, in a molecule, at least one organosiloxane unit having a 2,3-dihydroxypropylamino-substituted group such as --C.sub.3 H.sub.6 --NH--CH.sub.2 --CHOH--CH.sub.2 OH and --C.sub.3 H.sub.6 --NH--CH.sub.2 CH.sub.2 --NH--CH.sub.2 --CHOH--CH.sub.2 OH bonded to the silicon atom.

Abstract: Thermoplastic polymers or resins containing amide groups such as the nylons can readily be brominated or chlorinated in organic solvents to convert the (--NH--) units to (--NBr--) or (--NCl--) units and to form solutions of the N-brominated or N-chlorinated thermoplastic polymers or resins. These N-brominated or N-chlorinated thermoplastic polymer or resin solutions can be blended with silicones (siloxanes) and optionally with at least one finely divided material selected from the group consisting of inorganic and organic fillers and pigments and then can be coated on a cellular or solid rubbery hydrocarbon polymer substrate, such as an EPDM rubber in the form of a weatherstrip or glass run channel, dried and irradiated with ultraviolet light or heated at a temperature and for a period of time sufficient to reform the amide groups and to provide the rubbery substrate with an adherent and abrasion resistant coating which also exhibits a reduced coefficient of friction.

Abstract: A sealant material that is relatively chemically inert toward plastics and adhesives is comprised of a homogeneous mixture of polymeric adipate polyester and fumed silica, the polyester comprising about 80 to 85 percent by weight of the mixture and the fumed silica comprising about 15 percent to 20 percent by weight of the mixture. In the preferred embodiment, the sealant material further contains about 0.02 to 0.04 percent of an organofunctional silane and about 0.03 percent to 0.07 percent of a fluorosurfactant.

Abstract: A polyphenylene sulfide resin composition comprising (1) a polyphenylene sulfide resin having a melt flow value of at least 1,000 g/min., (2) silicic acid and/or a silicate, and (3) a silane compound composed of a vinylsilane and an aminosilane and/or an epoxysilane.

Abstract: Silicone rubber matrices are used to contain and dispense volatile, organic liquids. The articles, as dispensors are improved by the addition of a compatibilizing agent to reduce migration of the organic liquid out of the matrix in the form of liquid drops or films. Higher loadings of the organic liquid into the rubber matrix are achieved without syneresis occurring.

Abstract: Adhesive compositions affording strong bonds of high environmental resistance between elastomers and substrates such as metals are provided. The adhesive compositions comprise an admixture of (i) olefinic organosilane, (ii) water, and (iii) an alumino zirconium metallo-organic complex of chelated aluminum moiety, an organofunctional ligand and zirconium oxyhalide. The adhesive composition preferably includes a polymer resin selected from phenolic-formaldehyde resins, urea-formaldehyde resins, resorcinol-formaldehyde resins or melamine-formaldehyde resins.