Abstract: The invention relates to a straight-oil finishing composition comprising (A) 100 parts by weight of a polydimethylsiloxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25 centigrade temperature; and (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups and wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2. This composition is useful for treating fiber yarn.

Abstract: Additives comprising dispersed silica nanoparticles are disclosed. The silica nanoparticles are dispersed in an aminoplast, such as a modified aminoplast formed from the reaction between an aminoplast, a modifying component, and optionally a siloxane. The resulting additives can be added to coating compositions to provide improved mar and/or scratch resistance.

Abstract: Disclosed is a composition comprising or produced from nanoparticle-sized TiO2, an ethylene copolymer or ionomer of the ethylene copolymer, and optionally a second polymer. Also disclosed are films and other shaped articles produced therefrom. The composition, possessing a UV light barrier, can be used to protect the products that may be susceptible to UV such as foodstuffs.

Abstract: There are provided a radiation curing silicone rubber composition that is useful for the bonding of substrates, an adhesive silicone elastomer film formed from such a composition, a structural body in which two substrates are bonded via a cured layer formed from the composition, and a method of producing such a structural body. The composition includes: (a) an organohydrogenpolysiloxane containing at least one group selected from the group consisting of acryloyl groups and methacryloyl groups, and at least one hydrosilyl group; (b) a fluid organopolysiloxane with at least two groups which are each selected from the group consisting of acryloyl groups and methacryloyl groups, and with no hydrosilyl groups; (c) a compound selected from the group consisting of alkoxysilanes, partial hydrolysis-condensation products of alkoxysilanes, organosilane-modified isocyanurates and organosiloxane-modified isocyanurates; (d) a radiation sensitizer; and (e) a platinum group metal-based catalyst.

Abstract: To present a thermoplastic resin composition that gives a molded product with a surface to which dust is less likely to adhere. This patent presents a method of improving the appearance of the surface of a thermoplastic molded product.

Abstract: The invention relates to a tire of a structural combination of tire tread and sidewall components with compositional limitations containing minimal, if any, of in situ formed alcohol and methyl isobutyl ketone byproducts. The tread component rubber composition contains pre-hydrophobated silica reinforcement. The sidewall component contains low unsaturation EPDM or brominated copolymer of isobutylene and p-methylstyrene and may contain pre-hydrophobated silica reinforcement. The silica reinforcement for said tread and sidewall components is a pre-hydrophobated precipitated silica. The pre-hydrophobated silica is prepared, prior to mixing with the elastomer(s), by reacting hydroxyl groups (e.g.

Abstract: A vulcanizable rubber composition having improved metal adhesion and metal adhesion retention properties with bright steel, the improvement wherein from about 0.1 to about 10 parts by weight of a compound selected from the group consisting of aminosilanes and mercaptosilanes and mixtures thereof, per 100 parts of the rubber component in the rubber composition is incorporated into the rubber composition prior to curing. Structural components for a pneumatic tire contain a cured rubber composition, having from about 0.1 to about 10 parts by weight of a compound selected from the group consisting of aminosilanes and mercaptosilanes and mixtures thereof per 100 parts of the rubber component in the rubber composition, incorporated into the rubber compounds prior to curing. A method for improving metal adhesion and metal adhesion retention properties between a vulcanizable rubber composition and bright steel comprises the step of incorporating from about 0.

Abstract: The invention provides a curable composition for a heat conductive material, having an excellent durability, a satisfactory heat conductive property and a high productivity with easily controllable surface tackiness, a heat conductive material obtained from such curable composition and a method for controlling the surface tackiness of the composition after curing. The curable composition for the heat conductive material is formed by a curable composition of heat curable type based on crosslinking by a hydrosilylation reaction and including a saturated hydrocarbon polymer containing at least an alkenyl group in a molecule, a curing agent containing at least two hydrosilyl groups in a molecule and a hydrosilylation catalyst, to which a heat conductive filler is incorporated, thereby providing a flexible elastomer with a satisfactory heat conductivity and with an easily controllable surface tackiness.

Abstract: A composition containing an alkoxysiloxane including a catenate alkoxysilane of formula I and/or a cyclic siloxane of formula II, and a crosslinkable polymer compound and the use thereof as a water scavenger, dryer or precuring retarder R3Si—O—[SiR2—O—]mSiR3??(I)

Abstract: Disclosed herein is a process of manufacturing a filled rubber comprising the steps of: mixing a rubber, an inorganic filler, and a blocked mercaptosilane of a structure defined herein, to produce a rubber mixture; mixing into the rubber mixture; (i) a deblocking agent to deblock the blocked mercaptosilane, and (ii) a curing agent; and allowing the rubber mixture to cure.

Abstract: The invention discloses a flame-retardant thermoplastic resin composition without containing any halogen compounds as a flame-retardant agent but still exhibiting excellent flame retardancy. The resin composition comprises: (a) a thermoplastic resin kneadable or moldable at a temperature lower than 250° C. such as polyethylene; (b) magnesium hydroxide as the principal flame retardant agent; (c) an organopolysiloxane compound of a specified viscosity; and (d) a reactive catalytic compound which is a radical-generating compound having an incipient thermal decomposition temperature higher than 250° C. such as 2,3-dimethyl-2,3-diphenylbutane. Alternatively, the catalytic compound as the component (d) can be a combination of a noble metal, e.g., platinum, compound and a vinyl group-containing organosiloxane compound.

Abstract: An antifoam formulations comprise (A) antifoam agent based on siloxanes and (B) branched polyether/polysiloxane copolymers comprising structural units of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x??(I) in which Y is a multivalent, optionally heteroatom-containing hydrocarbon radical, R are monovalent optionally halogenated hydrocarbon radicals, A is a radical —R2Si—R2—(R2SiO)m—, G is a monovalent radical —CfH2f-2k—Z or a divalent radical —CnH2n— bonded to a radical Y, Z —(R6)v—(OCH2CH2)a[OCH2CH(CH3)]b[OCH2CH(CH2CH3)]c—OR3, in which R3 is hydrogen, a hydrocarbon radical, or a radical R—C(O)—, R6 is a divalent hydrocarbon radical, v is 0 or 1, a, b and c are 0 or an integer between 1 and 1000, the sum (a+b+c) being from 2 to 2000, x is 3 to 10, f is 2 to 12, k is 0 or 1, n is 2 to 12, m is at least 1, and p is 0 or a positive integer, the branched polyether/polysiloxane copolymers (B) containing on average at least one group Z.

Abstract: Novel thickeners for oil-containing compositions are crystalline polymers, preferably side chain crystalline polymers, which (a) have a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp?To is less than Tp0.7; (b) are soluble in the oil at temperatures above Tp, and (c) have been dispersed in the oil by a process which comprises (i)dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution from step (i) to crystallize the polymer in the oil.

Abstract: Blocked mercaptosilanes are provided in which the blocking group contains and unsaturated heteroatom or carbon chemically bound directly to sulfur via a single bond. This blocking group optionally may be substituted with one or more carboxylate ester or carboxylic acid functional groups. These silanes are used in manufacture of inorganic filled rubbers, with the silanes deblocked by a deblocking agent. Synthesis of the blocked mercaptosilanes is also provided.

Abstract: The present invention is directed to a rubber composition comprising a diene elastomer, a reinforcing white filler, and a (white filler/elastomer) coupling agent, which is bifunctional and which can be bonded to the elastomer by means of a function X. The coupling agent X function is an ester function of an unsaturated ?-? acid bearing a carbonyl group on its ? position and having the general formula (X): where R, R1 and R2 may be the same or different, where R is a monovalent hydrocarbon radical, and where R1 and R2 may be a hydrogen atom or a monovalent hydrocarbon radical. The rubber composition of the present invention is useful for the manufacture of tires or semi-finished products for tires, such as tire treads.

Abstract: A blocked mercaptosilane of the structure: G-C(?O)—S—CH2CH2CH2SiX3 is disclosed wherein each X is an independently selected RO— group or R— group wherein each R is independently selected from the group consisting of hydrogen, alkyl that may or may not contain unsaturation, alkenyl groups, aryl groups, and aralkyl groups, such moieties other than hydrogen having from 1 to 18 carbon atoms, at least one X is RO—, and G is a monovalent alkyl group.

Abstract: A single component sag-free liquid ebonite composition having silane coupling agents selected to chemically bond and convert liquid unsaturated rubber to alkoxy functionality, to consume and scavenge moisture originally present in the mixture, and to react with sulfur during vulcanization. The single component liquid ebonite composition is moisture activated and is particularly useful for coating applications in protecting metal from corrosion and chemical attack. In some embodiments, the liquid ebonite composition having a total mass percentage of 100 is mainly composed of liquid unsaturated rubber, sulfur, a vulcanization activator, a vulcanization accelerator, a first silane, a second silane, and a third silane. With the right reactive functional group, the third silane can replace the first or second silane. In some embodiments, the liquid ebonite composition includes a catalyst, carbon black, fillers, additives, and a diluent or solvent.

Abstract: The present invention provides a polypropylene resin composition including a polypropylene resin having a melt flow rate of 4-18 g/10 minutes, a flame retardant additive having a low melting point, an antimony oxide, a UV stabilizer, a silane coupling agent, and titanium dioxide as a light-blocking agent. The resin composition of the invention produces products exhibiting excellent flame retarding properties, stability against weather, and maintainability of physical/mechanical properties as shown by maintaining the original flame retarding properties after long periods of outdoor exposure and hydrothermal dipping treatments.

Abstract: Organosilicon compounds having alkynol groups and containing units of the formula where R3 and R2 are optionally substituted hydrocarbon radicals, R4 are divalent organic radicals, and X is a linking group are useful in addition crosslinkable compositions. The compositions exhibit long pot life and yet also exhibit excellent cure, and are useful, inter alia, in preparing molded articles and coatings.

Abstract: There is disclosed a fire-retardant resin composition, which comprises: a thermoplastic resin component (A) comprising (a) a block copolymer mainly made of a vinyl aromatic compound and a conjugated diene compound as its constitutional components, and/or a hydrogenated block copolymer of the block copolymer, (b) a nonaromatic-series softener for rubber, (c) an ethylene/?-olefin copolymer, and (d) a polypropylene resin; and (e) an organic peroxide, (f) a (meth)acrylate-series and/or allyl-series crosslinking aid, and a metal hydrate (B), wherein a specific amount of the metal hydrate (B) to be used is a metal hydrate being pretreated with a silane coupling agent, and the fire-retardant resin composition is a mixture of the above formulation that is heated and kneaded at a temperature equal to or higher than the melting temperature of the (A). There is also disclosed a wiring material and other molded parts, in which the resin composition is utilized.

Abstract: An insulating member is made of an abrasion-resistant resin composition prepared by mixing a base resin with a polyamide ultrafine, fibers-dispersed polyolefin resin composition that contains a polyolefin, polyamide fibers, a silane coupling agent and silica particles. In the resin composition, the silica particles may be in the polyamide fibers.

Abstract: Epoxy laminates with outstanding strength were obtained from glass fabrics finished with certain non-styryl arylalkyl aminofunctional alkoxysilane compounds having the formula: and HCl salts thereof, wherein R is an alkyl group having 1 to 6 carbon atoms; R1 is an alkyl group having 1 to 6 carbon atoms; R2 may be the same or different and are independently selected from alkyl groups having 1 to 6 carbon atoms; and n has a value of 0 or 1, wherein the compounds are prepared using readily available starting materials without the need for styrenic double bond.

Abstract: Thickeners for oil-containing compositions, particularly cosmetic and personal care compositions, are side chain crystalline polymers which are uniformly dispersed as a crystallized solid in the oil.

Abstract: The invention concerns fibre-free precursor pastes of refractory material characterised in that they contain an elastomeric polymer filled with alumina and alumina hydrate and a silylating agent, generating Si—O bonds. The invention also concerns the method for making said paste and the material and the use thereof.

Abstract: A composition and method for making a fluoroelastomer is disclosed. The composition comprises a fluoroelastomer containing chlorine and an organic compound containing at least an hydride function. The hydride function has the formula MH where M is Si, Ge, Sn or Pb.

Abstract: PTFE pellets with good bulk density, homogeneity, and flowability properties may be obtained by: (1) wetting a PTFE powder with a solvent, to obtain a wetted PTFE powder; (2) forming the wetted PTFE powder into agglomerated pellets of PTFE; and (3) drying the agglomerated pellets of PTFE pellets, in which the drying of the agglomerated pellets of PTFE is carried out in a fluidized bed drier. The PTFE pellets so obtained may be used to prepare molded articles of PTFE.

Abstract: There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of an organically modified ceramic.

Abstract: Rubber mixtures which contain an organosilane of the general structure 1R2R3Si—R4—Z (I), wherein R1, R2 and R3 independently of one another are H, (C1-C4)alkyl, (C1-C4)alkoxy or halogen and the number of alkyl groups is ?1; R4 is a linear or branched (C1-C18)alkylidene group; and Z=H, halogen, SCN, SH or Sx—R4—SiR1R2R3, where x is 2 to 10. The rubber mixtures are useful in molding compositions particularly for tires and tire treads.

Abstract: The invention relates to a sol-gel coating material containing (A) an acrylate copolymer solution containing at least one acrylate copolymer (A1); (B) a parent varnish which can be prepared by hydrolysis and condensation of at least one hydrolysable silane (B1) of the general formula (I) SiR4, in which the variable R=hydrolysable groups, hydroxy groups and non-hydrolysable groups, provided that there should be at least one, preferably two, hydrolysable groups; and (C) an additive solution containing c1) at least one ethylenically unsaturated compound containing at least one epoxide group; c2) at least one silane (B1) with at least one non-hydrolysable group R presenting at least one epoxide group; and c3) at least one adduct of at least one silane (B1) with at least one non-hydrolysable group R presenting at least one amino group and at least one cyclic ethylenically unsaturated dicarboxylic acid anhydride.

Abstract: A coating composition based upon at least partially hydrolyzed epoxy-functional alkoxy silanes and having particular utility in forming tintable, abrasion resistant coatings on lenses. Incorporation in the composition of a non-hydrolyzed epoxy-functional alkoxy silane provides a desired reduction in viscosity. Incorporation in the composition of a polyether surfactant provides a cured coating of the composition with increased tintability.

Abstract: This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Abstract: Rubber powders with a high degree of filling are obtained by precipitating water-containing suspensions which contain fillers and rubber emulsions or rubber solutions. Use thereof to prepare vulcanizable rubber mixtures.

Abstract: Rubber aircraft parts are made of the cured form of a curable composition comprising a perfluoropolyether polymer having a perfluoropolyether backbone and at least one reactive group, a crosslinking agent for crosslinking the polymer, and a silica filler having an average particle size of 0.001-10 &mgr;m. By providing dramatically improved sealability at low temperatures of −25 to −55° C., particularly during use in a dynamic state, and much improved resistance to amines and other chemicals, such rubber parts can ensure the reliable sealability of fluid line junctions in jet engines.

Abstract: A surface treatment agent containing; (A) a metal alkoxide, and (B) a polymer comprising (B-i) a monomer having a carbon-carbon double bond and a metal alkoxide group, (B-ii) a fluorine-free (meth)acrylic acid derivative monomer, and (B-iii) a fluorine-containing compound having a functional group reactive with the metal alkoxide, or (B-iv) a fluorine-containing monomer having a carbon-carbon double bond, can impart durability maintaining sufficient water- and oil-repellency and soil releasability before and after cleaning.

Abstract: A dimethylpolysiloxane composition comprising at least two dimethylpolysiloxanes selected from dimethylpolysiloxanes represented by formula (1) or formula (2), 1

Abstract: A blocked mercaptosilane of the structure: G-C(═O)—S—CH2CH2CH2SiX3 is disclosed wherein each X is an independently selected RO— group or R— group wherein each R is independently selected from the group consisting of hydrogen, alkyl that may or may not contain unsaturation, alkenyl groups, aryl groups, and aralkyl groups, such moieties other than hydrogen having from 1 to 18 carbon atoms, at least one X is RO—, and G is a monovalent alkyl group.

Abstract: A moisture curable polyurethane composition comprising (A) a urethane prepolymer having two or more isocyanate groups in the molecule, (B) an inorganic filler as a storage stabilizer, (C) an N-silylamide compound represented by the formula (1), (D) an epoxy resin, and/or (E) a moisture latent curing agent, and a moisture curable epoxy resin composition comprising (D) an epoxy resin, (C) an N-silylamide compound, and (E) a moisture latent curing agent. (R1—CONH)4-n—Si—R2n  (1) wherein R1 is a hydrocarbon group having 5 to 21 carbon atoms optionally containing a heteroatom, provided that when n is 0, 1 or 2, R1s may be the same or different; and R2 is an alkyl or alkoxy group having 1 to 3 carbon atoms; and n is 0, 1, 2 or 3. The moisture curable compositions are excellent in storage stability and thixotropic properties, have high curing rates at the time of working, and can give rise to cured products having excellent mechanical properties such as tensile strength.

Abstract: The present invention provides silica-filled, vulcanized elastomeric compounds comprising an elastomer mixed with at least a silica filler, a processing aid, and a curing agent, and processes for the preparation of the same. Generally, the present invention provides processing aids which effectively reduce or replace the amount (i.e., about 10 percent by weight based upon the silica filler) of the processing aid bis[3-triethyoxysilyl)propyl]tetrasulfide (“Si69”) used in the production of silica-filled rubber stocks. These new processing aids include alkyl alkoxysilanes, fatty acid esters of hydrogenated and non-hydrogenated sugars and the polyoxyethylene derivatives thereof, and combinations thereof, with or without various non-reinforcing fillers such as mineral fillers. The processing aids do not hinder the physical properties of the compounds and have been found to be excellent substitutes for Si69.

Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain a polyurethane containing blocked isocyanate groups. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations and also a pleasant, soft hand.

Abstract: A coating composition based upon at least partially hydrolyzed epoxy-functional alkoxy silanes and having particular utility in forming tintable, abrasion resistant coatings on lenses. Incorporation in the composition of a non-hydrolyzed epoxy-functional alkoxy silane provides a desired reduction in viscosity. Incorporation in the composition of a polyether surfactant provides a cured coating of the composition with increased tintability.

Abstract: A water-based security printing ink is provided with two means of security. The use of a variable light absorbing and/or transmitting pigment or dye is a first security and a water repelling agent is provided as a second security. Visible images can be generated from the printed ink upon exposure to UV or infrared light. The water repelling agent renders the image waterproof and differentiates the printed image from the substrate, which allows the image to be detected upon exposure to water or other aqueous mixture. Suitable inks can be used in conventional printing methods, such as jet printing, lithography, offset printing and impact printing. Also provided are substrates imaged with these security printing inks.

Abstract: The present invention relates an improved silicone modified water-based emulsion used primarily for publication gravure ink. Publication gravure water-based ink produced with the new polymer exhibits superior paper holdout, smoother lay, and higher gloss on super calendered and uncoated paper substrates as compared to conventional water-based gravure inks.

Abstract: A composition comprising (A) a copolymer which comprises (I) repeating units which are derived from a monomer having a fluoroalkyl group, a carbon-carbon double bond, (II) optional repeating units which are derived from a monomer having at least two urethane or urea bonds and a carbon-carbon double bond, but no fluorine atom, (III) optional repeating units which are derived from a monomer, the homopolymer of which having a glass transition temperature (Tg) of 50° C. or less, (IV) optional repeating units which are derived from a monomer having a hydrophilic group and a carbon-carbon double bond, and (V) optional repeating units which are derived from a monomer having a chlorine atom and a carbon-carbon double bond; and (B) a film-forming auxiliary can impart high water and oil repellency by drying at room temperature (0 to 30° C.) without requiring a heat treatment step.

Abstract: The invention provides a vibration-absorbing silicone gel composition mainly comprising: 100 parts by weight of (a) an organopolysiloxane having a (meth)acryloyl group in its molecule; from 5 to 100 parts by weight of (b) an organopolysiloxane unreactive with ingredient (a); from 1 to 50 parts by weight of (c) an amorphous pulverization product of a three-dimensionally crosslinked silicone resin; from 1 to 20 parts by weight of (d) a fumed silica; and an effective amount of (e) a polymerization initiator, as a gel composition which has high vibration-absorbing properties and high shape retention and which can be used as, e.g., a vibration-absorbing damper even when it is not sealed up in a container or bag.

Abstract: One aspect of the present invention provides an aqueous surface finish composition comprising a film-forming, reversibly crosslinked, emulsion-based polymer composition, and a surface modified inorganic particle material. The surface modified inorganic particle material is dispersed within the emulsion-based polymer composition, and enhances performance characteristics of a resultant film including hardness, modulus, as well as scratch and soil resistance. The floor finish composition is shelf stable and is particularly well suited for application to floor surfaces, but also to other substrate surfaces such as walls and bathroom surfaces.

Abstract: A flame retardant resin composition is provided comprising (A) 100 pbw of a resin comprising 10-100% by weight of an aromatic polycarbonate resin and 90-0% by weight of another thermoplastic resin, (B) 0.1-9.9 pbw of an organopolysiloxane containing silicon atom-bonded phenyl groups, and (C) 0.1-9.9 pbw of an organopolysiloxane containing silicon atom-bonded methyl groups and Si—H groups and free of an aromatic hydrocarbon group. The composition has satisfactory flame retardant effects and safety and minimal environmental load features, and molded articles can be effectively produced therefrom.

Abstract: Printed wiring boards improved in the drilling processability and insulation properties are produced either by treating the surfaces of base materials or inorganic fillers with silicone oligomers having specified structures, particularly, a three-dimensionally crosslinked silicone oligomer, or by using resin varnish prepared by compounding such a silicone oligomer with a resin varnish for impregnation of the base materials, or by dipping the inorganic fillers in a solution of such a silicone oligomer for surface treatment and then directly compounding resin materials with the solution.

Abstract: Disclosed herein is a rubber composition comprising: a) a blocked mercaptosilane of a defined structure, wherein the blocking group contains an unsaturated heteroatom or carbon chemically bound directly to sulfur via a single bond and, optionally, may be substituted with one or more carboxylate ester or carboxylic acid functional groups; b) an organic polymer; c) a filler; and d) a deblocking agent.

Abstract: A dispersion comprises at least 30 per cent by weight of particles of a metal oxide having an average primary particle size of less than 200 nm dispersed in a siloxane fluid dispersing medium and a dispersing agent wherein said metal oxide particles are hydrophoobic, and the dispersing agent is polylkylene oxide/polyalkylsiloxane block copolymer comprising at least 30 per cent by weight of the copolymer of polyalkylsiloxane. The dispersion is particularly suitable for use as an ingredient in sunscreening cosmetics.

Abstract: A thermomechanical-shock-resistant cured composition for solventless, hydrophobic resin encapsulation of electronic components having a glass transition temperature below 0° C. and containing a non-silicone oligomer including a flexible hydrocarbon backbone with reactive functionality, up to about 40% by weight of an adhesion promoter, and a optional viscosity-modifying component.