Abstract: A rubber composition for cleaning a metal mold comprises a rubber, an aminoalcohol, a glycol, an adsorptive, and if desired, an organic silane of the formula, Z.sup.1 -Alk.sup.1 -S.sub.n -Alk.sup.2 -Z.sup.2 where Z.sup.1 and Z.sup.2 are--Si(R.sup.1) (R.sup.2)(R.sup.3) where R.sup.1, R.sup.2 and R.sup.3 are C.sub.1-4 alkoxy, Alk.sup.1 and Alk.sup.2 are C.sub.1 -C.sub.6 hydrocarbylene, n is 2-6, or an organic peroxide having a predetermined half-life due to decomposition.Metal molds are cleaned by bringing the above-mentioned rubber composition into contact with a surface of a dirtied metal mold and heating.

Abstract: The organopolysiloxane composition proposed is a blend of a conventional diorganopolysiloxane or a dimethylpolysiloxane oil and a limited amount of an (etherified) perfluoroalkyl group-containing organopolysiloxane such as those represented by the general formula ##STR1## in which Rf is a perfluoroalkyl group of 1 to 14 carbon atoms or an etherified perfluoroalkyl group of 2 to 14 carbon atoms having at least one oxygen atom between two carbon atoms forming an ether linkage, R is a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms, Y is a divalent organic group having 2 to 5 carbon atoms, the subscripts a and b are, each independently from the other, zero or a positive integer and the subscripts c and d are, each independently from the other, zero, 1, 2 or 3 with the proviso that at least one of the subscripts a, c and d is not zero.

Abstract: The invention relates to paints which contain a compound of the general formula (I) or a mixture of compounds of the general formula (I), the general formula (I) being ##STR1## and n, m, X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and Y having the following meaning:- n stands for a number between 2 and 25, preferably for a number between 5 and 15- m stands for a number from 0 to 5- X and Y can be identical or different and stand for a functional group, for example a hydroxyl, amino, carboxyl or NCO group- R.sup.1 and R.sup.4 can be identical or different and stand for an alkylene radical, preferably for an alkylene radical having 1 to 6 carbon atoms, or for an arylene radical, preferably a phenylene radical- R.sup.2 and R.sup.3 can be identical or different and stand for an alkyl radical, preferably for an alkyl radical having 1 to 3 carbon atoms, or for an aryl radical, preferably for a phenyl radical- R.sup.5 stands for ##STR2## Z standing for X, Y or R.sup.2.

Abstract: Reaction products of titanates with .beta.-dicarbonyl compounds and citrates and their use in one-component RTV silicones.

Abstract: Diorganopolysiloxane compositions are provided with excellent heat resistance, especially diorganopolysiloxane compositions that are suitable for synthetic fiber lubricants. The diorganopolysiloxane composition is a mixture of (A) a diorganopolysiloxane oil and (B) an amino-group-containing diorganopolysiloxane, and has an average amino equivalent in the range of 10,000-1,000,000 and a viscosity at 25.degree. C. in the range of 10-100,000 cs.

Abstract: The release agent compositions of the present invention comprise mixtures of amino-functional and amine-free polydimethylsiloxanes wherein the viscosity, amine equivalent and content of dimethylsiloxane oligomers containing up to 20 silicon atoms are within specified limits. The compositions do not evolve oily volatiles or silicon dioxide powder even during exposure to elevated temperatures.

Abstract: A novel water-repellent glazing agent is disclosed. The agent contains a modified organic silicone oil, which is represented by the general formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 respectively stand for CH.sub.3 or a long chain alkyl group having 10-30 carbon atoms and at least one of X.sup.1, X.sup.2 and X.sup.3 is a long chain alkyl group having 10-30 carbon atoms and m and n are respectively 20-80 and 3-10. This agent has excellent water repellency and glazing effect as well as excellent operability.

Abstract: The specification describes and claims a moisture curable composition comprising hydroxypolysiloxane, silane curing agent, finely divided filler (preferably calcium carbonate), catalyst, and as rheological additive, a polymer having on its polymer chain at least one carboxylic acid anhydride group. Preferred rheological additives are polybutadiene polymers treated with e.g. maleic acid anhydride. These products have improved rheology for sealant use.

Abstract: A silicone polymer, a paste-like silicone composition prepared by kneading the silicone polymer and a silicone oil under a shearing force, and a water-in-oil type cosmetic composition comprising the paste-like silicone composition as an oil phase component are disclosed. The silicone polymer is prepared by the addition polymerization of components comprising an organohydrogenpolysiloxane R.sup.1.sub.a R.sup.2.sub.b H.sub.c SiO.sub.(4-a-b-c)/2 (1) or R.sup.1.sub.f H.sub.g SiO.sub.(4-f-g)/2 (2) and a polyoxyalkylene C.sub.m H.sub.2m-1 O(C.sub.2 H.sub.4 O).sub.h (C.sub.3 H.sub.6 O).sub.i C.sub.m H.sub.2m-l (A) or an organopolysiloxane R.sup.1.sub.j R.sup.4.sub.k SiO.sub.(4-j-k)/2 (B) the components, including (1) or (A) as an essential component. The silicone polymer can swell in silicone oils and function as a viscosity increasing agent for silicone oils.

Abstract: There is disclosed a polyamide molding composition characterized by excellent moldability, release and lubricity, said composition comprising:(A) 100 parts by weight of a polyamide resin;(B) 0.1 to 120 parts by weight of a polydiorganosiloxane that contains neither carboxyl nor amino groups; and(C) a polysiloxane selected from the group consisting of carboxyl-containing polydiorganosiloxane and amino-containing polydiorganosiloxane, the amount of said polysiloxane (C) being 0.01 to 50 parts by weight for each 100 parts by weight of said component (B).

Abstract: A composition useful in the fabrication of extruded articles contains a thermoplastic resin such as polyethylene and from 100-3,000 parts per million of a lubricant which is (i) an organosilicon resinous copolymer having a number average molecular weight of between 1,200-10,000 and R.sub.3 SiO.sub.1/2, R.sub.2 SiO.sub.2/2, RSiO.sub.3/2 and SiO.sub.4/2 units, wherein R is a C.sub.1 -C.sub.6 alkyl, aryl, alkenyl and/or trifluoropropyl radical(s); or (ii) the organosilicon resinous copolymer and a siloxane polymer R.sub.3 SiO(R.sub.2 SiO).sub.n SiR.sub.3 wherein R is as defined heretofore and n is 1-100,000; or (iii) the organosilicon resinous copolymer and an absorbing filler such as silica; or (iv) the organosilicon resinous copolymer, the siloxane polymer and an absorbing filler.

Abstract: A novel method for putting silicone onto polycarbonate is disclosed comprising preparing a mixture of a silicone, a polycarbonate and a solvent, heating the mixture to reflux and recovering the solid powdery residue.

Abstract: The composition of the present invention comprises an oil-resistant silicone rubber composition that undergoes little swelling even when used in regular or continuous contact with mineral oil-based lubricating oil such as engine oil and so forth. The oil-resistant silicone rubber composition comprises:(A) a dimethylsiloxane-3,3,3-trifluoropropylmethylsiloxane-methylvinylsiloxane copolymer gum that contains 0.001 to 5 mole percent methylvinylsiloxane unit,(B) a hydrocarbon oil or diorganopolysiloxane oil wherein the total in each diorganopolysiloxane oil molecule of the number of silicon-bonded hydrogen atoms and the number of functional groups reactive with component (A) or (C) is less than two,(C) a reinforcing filler, and(D) a curing agent in a quantity sufficient to cure the composition.

Abstract: A thermoplastic resin composition having in admixture a polyphenylene ether resin and an elastomeric block copolymer wherein the block copolymer has in admixture a triblock copolymer A-B-A' and a diblock copolymer A-B with A and A' being polymerized vinyl aromatic hydrocarbon blocks such as styrene and B being an ethylene-alkylene block such as ethylene-butylene. The composition of this invention can also include other additives such as siloxane fluids, flame retardants, polyolefins, and phosphates, as well as fillers, etc. Also included in this invention is the process of preparing such compositions and articles of manufacture prepared therefrom, such as electrical conductor articles or formed articles. The compositions of this invention provide improved flexibility and elongation.

Abstract: A rubber composition for cleaning a metal mold comprises a rubber, an aminoalcohol, a glycol, an adsorptive, and if desired, an organic silane of the formula, Z.sup.1 --Alk.sup.1 --S.sub.n --Alk.sup.2 --Z.sup.2 where Z.sup.1 and Z.sup.2 are --Si(R.sup.1) (R.sup.2)(R.sup.3) where R.sup.1, R.sup.2 and R.sup.3 are C.sub.1-4 alkoxy, Alk.sup.1 and Alk.sup.2 are C.sub.1 -C.sub.6 hydrocarbylene, n is 2-6, or an organic peroxide having a predetermined half-life due to decomposition.Metal molds are cleaned by bringing the above-mentioned rubber composition into contact with a surface of a dirtied metal mold and heating.

Abstract: A process for producing an aromatic polycarbonate with improved heat resistance comprising melt polycondensing an aromatic diol compound and a carbonic acid diester compound in the presence of an interesterification catalyst and in the co-presence of an organosilicon compound.

Abstract: A polycarbonate resin comprising (A) a thermoplastic resin comprising a polycarbonate resin as the main component thereof, (B) inorganic fillers and/or inorganic pigments and (C) an organopolysiloxane having an organoxysilyl group which is bonded to a silicon atom through a divalent hydrocarbon group is provided. The polycarbonate resin shows a lesser degree of molecular weight decrease, has excellent heat stability and moldability, and provides molded articles having excellent appearance, mechanical properties like impact resistance, degree of whiteness and color tone. The polycarbonate resin can be applied to production of various kinds of molded articles, such as molded articles in the field of office automation instruments, electric and electronic products, automobiles, mechanical products, building materials and the like.

Abstract: A fungiresistant polyorganosiloxane composition comprising(A) 100 parts by weight of a polyorganosiloxane having a viscosity at 25.degree. C. of from 100 to 500,000 cSt, each of both the terminals of which being blocked with a silanol group or an alkoxy group,(B) from 0.1 to 20 parts by weight of an organisilicon compound having on the average more than 2 hydrolyzable groups each bonded to a silicon atom in the molecule,(C) from 0.001 to 25 parts by weight of a benzimidazolylcarbamate compound represented by the formula ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, a halogen atom, or a nitro group; R.sup.2 represents an alkyl group having from 1 to 4 carbon atoms or an alkoxyalkyl group having from 2 to 4 carbon atoms: and R.sup.3 represents a hydrogen atom, an N-substituted or unsubstituted carbamoyl group or an N-substituted or unsubstituted carbamoyloxy group, and(D) from 0.

Abstract: A coating composition comprising an organosilicon compound and modified stannic oxide - zirconium oxide composite colloidal particles which are obtained by partially or fully coating the surface of stannic oxide - zirconium oxide composite colloidal particles with tungstic oxide - stannic oxide composite colloidal particles. The formed cured coating film is excellent in hot water resistance, and light-resistance and weathering resistance are not impaired even when the antireflection film made by vepor deposition of inorganic oxides is applied on the cured coating film.

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: A composition curable to a silicone rubber exhibits adhesion to metal and glass substrates under both dry and wet conditions where the composition contains an alkenyl-containing polydiorganosiloxane, an organohydrogensiloxane, a hydrosilation catalyst containing platinum, an (epoxy-functional organo)trialkoxysilane, an alkoxy-silicon compound, and a titanium compound having Ti--O--CH bonds and the molar amount of alkoxy-silicon compound exceeds the molar amount of (epoxyfunctional organo)trialkoxysilane.

Abstract: A vehicle masking material and method of use. The masking material in one embodiment includes polyvinyl alcohol, ethyl alcohol, glycerine or triethylene glycol, a surfactant, and water. The masking material is applied to a surface which is to be protected from paint overspray or other mechanical process, allowed to dry, and paint is applied. After drying of the paint, the masking material is removed by peeling or water washing.

Abstract: The properties of polyphenylene ether-polyamide mixtures can be improved by the addition of polysiloxane compounds.

Abstract: A thermoplastic composition is provided comprising an acrylonitrile-butadiene-styrene graft copolymer, polycarbonate and an epoxy functional silicone. The compositions exhibit reduced gloss and enhanced low temperature impact strengths and are useful as molding resins.

Abstract: This invention relates to polymers having enhanced hydrophilicity and thermal regulative properties. Exemplary polymers include aliphatic polyamide polymers and polyester polymers. The polymer has bonded thereto a hydrophilic polysiloxane having an affinity for the polymer and having a molecular weight greater than about 1000 g/mol preferably greater than about 2000 g/mol, and preferably greater than about 4000 g/mol. The polymer has substantially no polymerization with the hydrophilic polysiloxane. Alternatively, an aliphatic polyamide polymer is provided having enhanced hydrophilicity and thermal regulative properties. The polymer has bonded thereto an anionic hydrophilic polysiloxane having an affinity for the aliphatic polyamide polymer. The aliphatic polyamide polymer has substantially no polymerization with the anionic hydrophilic siloxane.

Abstract: Hot-melt silicone pressure sensitive adhesive compositions containing alkylmethylsiloxane waxes and methods of using the compositions are disclosed. The hot-melt silicone pressure sensitive adhesive compositions include a mixture of (i) a silicate resin, (ii) a silicone fluid, and (iii) an alkylmethylsiloxane wax having a melting point of between 30.degree. C. and 70.degree. C. The alkylmethylsiloxane wax decreases dynamic viscosity of the adhesive compositions at temperatures ranging from about 50.degree. C. to about 200.degree. C.

Abstract: A crosslinkable polymer composition comprises an olefin copolymer or graft copolymer with hydrolysable saline groups and a silanol condensation catalyst, as well as a silane compound with at least one hydrolysable organic group. The polymer composition is characterized in that the silane compound has a compatibility with the polymer composition of at least 0.035 mole hydrolysable groups per 100 g polymer composition, and in that the silane compound is represented by the general formula: R.sup.1 (SiR.sup.2.sub.n X.sub.3-n).sub.m, wherein R.sup.1 is a monofunctional hydrocarbyl group having 13-30 carbon atoms, or a difunctional hydrocarbyl group having 4-24 carbon atoms, R.sup.2 is a hydrocarbyl group having 1-10 carbon atoms, X is a hydrolysable organic group, n is 0, 1 or 2, and m is 1 or 2.

Abstract: A two-part RTV silicone preapplied compression gasket material for forming compression gaskets in place. The formulation includes a silanol terminated polyorganosiloxane, at least 5% by weight of the formulation of a tri- or tetra- methoxy or enoxy functional silane crosslinker, water, and, a condensation catalyst selected from the group consisting of stannous carboxylate compounds, dimethyl tin (IV) compounds and mixtures thereof. One of the two parts of the formulation includes the water component and the other of said two parts is a dry part and includes the crosslinker component.The formulation provides fast cure, fast development of compression set resistance and excellent ultimate compression set resistance.

Abstract: Disclosed herein are electronic device sealing resin compositions containing (A) 40-25 parts by weight of a thermoplastic resin composed of 100-10 wt. % of a poly(arylene thioether-ketone) and 0-90 wt. % of a poly(arylene sulfide), (B) 60-75 parts by weight of an inorganic filler, and per 100 parts by weight of the sum of the thermoplastic resin (A) and inorganic filler (B), (C) 1.5-5 parts by weight of a silicone oil, (D) 10-15 parts by weight of a silicone rubber or (C) 0.5-3 parts by weight of a silicone oil and (D) 5-13 parts by weight of a silicone rubber. Electronic devices sealed using such resin compositions are also disclosed.

Abstract: Silicone rubber coatings resistant to fouling by aquatic organisms are based on a hydroxy-functional polydiorganosiloxane and a crosslinking agent therefor. The hydroxy-functional polydiorganosiloxane may be packaged separately from the crosslinking agent, or a stable package comprising a hydroxy-functional polydiorganosiloxane terminated by excess crosslinking agent may be packaged separately from further hydroxy-functional polydiorganosiloxane. In either case the two packages can be combined to give the optimum ratio of crosslinking agent to silicon-bonded hydroxyl groups to ensure cure and give optimum resistance to fouling, whilst overcoming the problem of premature gelation during storage.

Abstract: An organic phosphite composition is provided comprising organic phosphite particles having organic phosphite cores coated with an organic hydrogen polysiloxane. The phosphite particles exhibit high levels of resistance to hydrolysis and are useful as antioxidant additives for thermoplastic compositions.

Abstract: A coated molded article having good adhesion to a coating film and resistance to gasohol as well as excellent appearance can be obtained by applying a primer coating to the surface of a molded article or irradiating the surface with plasma without applying any washing-treatment with a halogen atom-containing organic solvent and then applying a top coat onto the article, if the molded article is formed from a resin composition comprising (A)a polypropylene; (B)a specific ethylene-propylene-diene terpolymer rubber; (C) a specific ethylene-propylene copolymer rubber; and (D) a specific polyhydroxypolyolefin, the amounts of these components (A) to (D) satisfying the following relations:10.ltoreq.[(B)+(C)]/[(A)+(B)+(C)].ltoreq.60 (% by weight)1.ltoreq.(C)/[(B)+(C)].ltoreq.50 (% by weight)0.5.ltoreq.(D)/[(A)+(B)+(C)+(D)].ltoreq.

Abstract: A silicone rubber composition comprising(A) 100 parts by weight of a polyorganosiloxane having, per molecule, at least two structural units represented by the following formula:(R.sup.1).sub.a (R.sup.2).sub.b SiO.sub.(4-(a+b))/2 (I)(B) a polyorganohydrogensiloxane comprising structural units shown by the following formula:(R.sup.3).sub.c H.sub.d SiO(4-(c+d))/2 (II)and having at least three silicon-bonded hydrogen atoms per molecule, the amount of component (B) being such that the number of silicon-bonded hydrogen atoms in component (B) is from 0.5 to 4.0 per R.sup.1 group in the structural units shown by formula (I) of component (A),(C) from 0.1 to 10 parts by weight of a compound selected from the group consisting of an organosilicon compound having, per molecule, at least one silicon-bonded hydrogen atoms and at least one group represented by the following formula: ##STR1## and an acrylic- or methacrylic-functional silane coupling agent, (D) from 0.

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: An organocyclosiloxane having utility as a coupling agent is disclosed, said organocyclosiloxane having the general formula ##STR1## wherein R.sup.1 is independently selected from monovalent hydrocarbon groups having 1 to 8 carbons, R.sup.2 is selected from the group consisting of an alkoxy group and an alkoxysilylalkyl group, R.sup.3 is an organofunctional group selected from the group consisting of glycidoxyalkyl, methacryloxyalkyl, N-(trialkylsilyl)aminoalkyl, (hydroxyphenyl)alkyl and haloalkyl, x is 1 to 6 and y is 1 to 6, with the proviso that x+y is an integer having a value of 3 to 8.

Abstract: A windshield wiper blade capable of inexpensive manufacture and having good wipe quality comprises approximately 100 parts by weight of a vulcanizable elastomer including at least one silicone polymer, and about 75 to 220 parts by weight of a siliceous filler dispersed in the elastomer. The siliceous filler preferably includes a substantial portion of particles having a relatively large diameter in the range of 5 to 100 microns in order to lower the coefficient of friction of the wiper blade with respect to automotive windshield glass.

Abstract: Disclosed is a heat-resistant rubber composition comprising (A) 100 parts by weight of an ethylene/.alpha.-olefin copolymer or a modified ethylene/.alpha.-olefin copolymer formed by graft-copolymerization with at least one compound selected from the group consisting of unsaturated carboxylic acids and anhydrides and esters thereof, and (B) (i) 10 to 100 parts by weight of a silica type filler which has been treated with a silane compound represented by the following formula: ##STR1## wherein R.sup.1 stands for an alkenyl group, a chloroalkenyl group or a chloroalkyl group, and R.sup.2 stands for a lower alkyl group, or (ii) a combination of 10 to 100 parts by weight of said silane-treated silica type filler or an untreated silica type filler and 0.5 to 30 parts by weight of a polyorganosiloxane having an average composition represented by the following formula:(R.sup.3).sub.a (R.sup.4).sub.b SiO.sub.(4-a-b)/2 (II)wherein R.sup.3 stands for a monovalent saturated or unsaturated hydrocarbon group, R.sup.

Abstract: The instant invention pertains to an organopolysiloxane composition for the formation of a release film, that has a high curing rate at relatively low temperatures (.ltoreq.100.degree. C.) and that forms a cured film that both adheres strongly to various types of substrates and is highly releasing for tacky or sticky substances. The organopolysiloxane composition for the formation of a cured release film of the instant invention comprises (A) organopolysiloxane that contains in each molecule at least 2 alkenyl groups with the general formula H.sub.2 C.dbd.CH--(CH.sub.2).sub.n --, wherein n=2 to 8; (B) an organohydrogenpolysiloxane that contains in each molecule at least 2 silicon-bonded hydrogen atoms and at least 1 alkenyl group with the general formula H.sub.2 C.dbd.CH--(CH.sub.2).sub.n --, wherein n=2 to 8; (C) an addition-reaction inhibitor; (D) platinum group metal catalyst; and optionally (E) a nonreactive organopolysiloxane that contains neither silicon-bonded alkenyl nor silicon-bonded hydrogen.

Abstract: Distortion and haze of pressure sensitive tapes upon removal can be minimized by incorporating a small amount of chemically compatible, high molecular weight silicone polymer release modifier to the curable PSA compositions. Organopolysiloxanes of the general formula:RR.sup.1.sub.2 SiO(R.sup.1.sub.2 SiO).sub.x (RR.sup.2 SiO).sub.y SiR.sup.1.sub.2 Rare used as the release modifier, wherein each R.sup.1 and R.sup.2 is independently an aryl or alkyl group having from 1 to about 10 carbon atoms, each R is independently chosen from the following groups: R.sup.1, R.sup.2, alkenyl having from 1 to about 10 carbon atoms, hydrogen, alkoxy (such as methoxy, ethoxy, propoxy, etc.) hydroxy, epoxy, amino, and fluoroalkyl having up to 10 carbon atoms; x and y are each an integer such that the value of (x+y) is sufficient to yield a composition having a viscosity of from at least 1500 cps at room temperature to as high as the viscosity of silicone gums.

Abstract: A novel silicone polymer which is obtained by addition polymerization of at least one organohydrogenpolysiloxane of the type shown belowR.sup.1.sub.a R.sup.2.sub.b H.sub.c SiO.sub.(4-a-b-c)/2 ( 1)R.sup.1.sub.j H.sub.k SiO.sub.(4-j-k)/2 ( 2)and a specific type of polyoxyalkylene and/or organopolysiloxane provided that at least one selected from the organohydrogenpolysiloxane of the general formula (1) and the polyoxyalkylene is present for the addition polymerization. The silicone polymer is capable of being swollen with silicone oils to give a uniform, pasty composition without use of any surface active agent. This composition is able to stably, uniformly disperse water therein. Thus, the silicone polymer has wide utility in the fields of cosmetics and medicines.

Abstract: A coating composition is disclosed comprising an acrylosilane polymer, an acrylic polyol, a polyester urethane or a copolymer thereof, an amino resin crosslinking agent, and a silsesquioxane compound. Such a composition is especially useful for providing a finish on metallic and/or non-metallic parts of automobiles and trucks. This finish has the advantage of superior etch resistance and outstanding weatherability and durability characteristics.

Abstract: A coating blend composition is a physical admixture of an adhesion promoter resin and a coating material resin. The blend can be cured by one or more curing agents existing within either the adhesion promoter resin, the coating material resin, or both. The utilization of such a blend eliminates the need for priming a substrate such as a rubber, or a thermoplastic or a thermoset polyolefin. The adhesion promoter resin is a urethane composition containing a blocked polyurethane prepolymer whereas the coating material resin can generally be any compound which has a functional or cosmetic purpose such as a different type of blocked polyurethane, and is generally utilized in a major amount. A particular application of the coating blend compositions of the present invention is to a glass run channel made from, for example, EPDM, as in an automotive door.

Abstract: A water- and solvent-free release agent for use in the production of articles of polyurethane foam contains one or more polyenes as the main constituent and also in addition if required a consistency adjuster, an antioxidant, accelerators and/or stabilizers. To apply water- and solvent-free release agents to the surfaces of polyurethane-foam moulding dies the misting or atomization of the release agent is effected with a device with an electrostatic charge, by which the release agent particles are given an electrostatic charge when passing through the exit nozzle.

Abstract: A method of making a dispersion of a high viscosity siloxane in a volatile, especially cyclic siloxane, comprises first dispersing organopolysiloxanes having at least 2 Si--OR groups, wherein R is H or alkyl in a volatile siloxane and adding a catalyst which is either a phosphonitrile halide having the general formula [X(PX.sub.2 .dbd.N).sub.n PX.sub.3 ].sup.+ [MX.sub.(v-t+1) R.sub.t ].sup.-, or a heterogeneous catalyst selected from Li, Mg, Ca, Sr or Ba hydroxide, Na or K borate or phosphate, Rb or Cs carbonate or carboxylates of Rb or Cs wherein M is an element having an electronegativity of from 1.0 to 2.0, R is alkyl, X is halide, n is 1 to 6, v is the valence of M and t is from 0 to (v-1).

Abstract: Flame retardant polyphenylene ether compositions are provided which utilize a silicone fluid treated filler, such as a clay or fumed titanium oxide treated with a polydiorganosiloxane fluid.

Abstract: Novel compositions for stabilizing chlorinated polymers, copolymers and homopolymers comprising dawsonite, an organotin .beta.-diketonate, an organic zinc compound, and an organic calcium, magnesium, barium or lanthanide compound are disclosed. The compositions of the present invention enable the content of epoxidized oils to be decreased in chlorinated polymers while preserving thermal stability.

Abstract: Self-lubricating polyacetal resin compositions and molded articles (e.g. "wear parts") formed thereof include a polyacetal base resin, and a self-lubricating effective amount of a silica powder in which a silicone polymer (e.g. silicone oil) is absorbed. The silica powder acts as a carrier for the silicone polymer so as to improve the dispersibility of the silicone polymer in the polyacetal base resin as well as to allow greater silicone polymer "loading" of the polyacetal base resin. As a result, improved lubricant dispersibility and sliding characteristics are achieved.

Abstract: Aqueous dispersion compositions comprise a binder component comprising a film-forming, water-dispersible, carboxyl group-containing elastomeric polymer composition, a thickener component, a chlorinated polyolefin component, and a polyorganosiloxane component dispersed in an aqueous liquid. Such compositions additionally comprising a crosslinking agent and, optionally, colorant composition are used for coating and printing substrates.

Abstract: Improved flame retardance and smoke/heat reduction has been imparted to polyphenylene ethers by blending the polyphenylene ethers with organopolysiloxane fluids having a critical mole % range of chemically combined phenylsiloxane units.

Abstract: A novel acrylic rubber composition is proposed which has excellent moldability and good releasability from the metallic surfaces of milling rollers for the compounding works and metal molds for shaping and vulcanizing the composition into vulcanizates. The composition comprises: (a) an acrylic copolymer as the rubber base; (b) carbon black or a finely divided silica filler as a reinforcing agent; and (c) an organopolysiloxane having, in a molecule, at least one carboxyl-functional group such as .omega.-carboxyl undecyl group, bonded to the silicon atom, which can be prepared, for example, by the hydrosilation reaction between a SiH-containing organopolysiloxane and an alkyl undecylenate followed by hydrolysis of the ester group into carboxyl group.