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: A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filler of bis[3-(triethoxysilyl)propyl]tetrasulfide, an alkylalloxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.

Abstract: An objective of the invention is to provide a conjugated diene-based rubber having a specific composition and a method of producing the same, an oil extended rubber using the same, as well as a rubber composition capable of being converted into a vulcanized rubber which has a low rolling resistance, an excellent wearing resistance and the like, and is useful, for example, as a tire or the like. A conjugated diene-based rubber in the invention has a glass transition point of −60 to 0° C., an olefinically unsaturated nitrile monomer unit randomly contains in its molecular chain, its repeating units consists of 9 to 30% by mass of an olefinically unsaturated nitrile monomer unit such as acrylonitrile, 10 to 50% by mass of an aromatic vinyl monomer unit such as styrene and 20 to 81% by mass of a conjugated diene monomer unit such as 1,3-butadiene, and its Mooney viscosity [ML1+4(100° C.)] is 20 to 200.

Abstract: A method of using nanostructured chemicals as alloying agents for the reinforcement of polymer microstructures, including polymer coils, domains, chains, and segments, at the molecular level. Because of their tailorable compatibility with polymers, nanostructured chemicals can be readily and selectively incorporated into polymers by direct blending processes. The incorporation of a nanostructured chemical into a polymer favorably impacts a multitude of polymer physical properties. Properties most favorably improved are time dependent mechanical and thermal properties such as heat distortion, creep, compression set, shrinkage, modulus, hardness and abrasion resistance. In addition to mechanical properties, other physical properties are favorably improved, including lower thermal conductivity, fire resistance, and improved oxygen permeability.

Abstract: A silicone adhesive sheet for bonding a semiconductor chip to a chip attachment component comprising a crosslinkable silicone composition containing a silatrane derivative, and a method for manufacturing a silicone adhesive sheet by subjecting a crosslinkable silicone composition containing a silatrane derivative to a crosslinking reaction between backing materials that do not stick to the crosslinked product of said composition, where at least one of the backing materials has a larger dielectric constant than that of the crosslinked product. The present silicone adhesive sheet allows a semiconductor chip and a chip attachment component to be bonded in a short time at a relatively low temperature.

Abstract: A rubber composition for a tire tread comprising: per 100 parts by weight of a diene based rubber component containing at least 50 parts by weight of SBR, 5 to 50 parts by weight of carbon black (C/B) having a nitrogen absorption surface area (N2SA) of from 90 to 180 m2/g and a DBP absorption amount of from 100 to 170 ml/100 g and 5 to 50 parts by weight of silica (S), wherein the total amount of (C/B+S) is from 30 to 90 parts by weight; and 5 to 20% by weight of a silane coupling agent relative to the blended amount of silica; 1 to 15 parts by weight of a thermoplastic (novolac type) phenol resin; and 5 to 20% by weight of hexamethylenetetramine relative to the blended amount of resin, wherein tan &dgr; at 60° C., tan &dgr; at 0° C., dynamic modulus E′ at 30° C., and tensile stress at the time of extending 300% (M300) at 25° C. of the rubber composition are tan &dgr; (60° C.)≦0.14, tan &dgr; (0° C.)≧0.50, E′ (30° C.)≧1.2×107 pa and M300 (25° C.

Abstract: An objective of the invention is to provide a conjugated diene-based rubber having a specific composition and an oil extended rubber using the same, as well as a rubber composition capable of being converted into a vulcanized rubber which has a low rolling resistance, an excellent wearing resistance and the like, and is useful for a tire or the like. A conjugated diene-based rubber in the invention has repeating units consisting of 1 to 30% by mass of an olefinically unsaturated nitrile monomer unit such as acrylonitrile, 10 to 50% by mass of an aromatic vinyl monomer unit such as styrene, 19.9 to 88.9% by mass of a conjugated diene monomer unit such as 1,3-butadiene and 0.1 to 10% by mass of a monomer unit having one polymerizable unsaturated group and at least one functional group selected from the group consisting of an amino group, a hydroxyl group, an epoxy group, a carboxyl group and an alkoxysilyl group, and has a specific glass transition point and a Mooney viscosity [ML1+4(100° C.

Abstract: Flame retardant compositions useful as insulation for 150° C.-rated wire and cable applications are provided. The compositions of the invention utilize an ethylene-alkyl acrylate copolymer base resin with a two-component stabilizer package consisting of a zinc salt of a mercaptobenzimidazole and an aromatic secondary amine compound. Also, included to achieve the requisite flame retardance, crosslinkability and physical properties are a brominated flame retardant, antimony trioxide, a hydrated inorganic filler and a chemical crosslinking agent.

Abstract: A pressure-sensitive adhesive sheet comprising a layer of a crosslinked pressure-sensitive adhesive, which is formed by 100 parts by weight of a homopolymer or a copolymer of a monomer containing an alkyl (meth)acrylates as a principal component, 0.001 to 5 parts by weight of a silane-coupling agent, 0.

Abstract: This invention relates to preparation of an elastomer which contains a dispersion of silica reinforcement by forming a silica reinforcement in situ within an unvulcanized elastomer host, the resulting elastomer/filler composite and tire having component which contains such reinforced elastomer. The invention includes a rubber composition of at least two elastomers wherein one of said elastomers is a pre-formed composite of elastomer/in situ formed silica reinforcement. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.

Abstract: A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filler of bis[3-(triethoxysilylropyl]tetrasulfide, an alkylalkoxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.

Abstract: Compositions comprising inorganic particles or inorganic-organic particles, a non-hydrogen Lewis Acid, and an epoxy group-containing silicon compound, articles coated with the cured composition to provide scratch and abrasion resistance.

Abstract: A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filter of bis[3-triethoxysilyl)propyl]tetrasulfide, an alkylalkoxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.

Abstract: A flame-retardant thermoplastic resin composition, which comprises a polymer alloy composed of a thermoplastic resin (A) and a liquid-crystal polymer (B), is excellent in the stability of the heat retentivity imparted thereto in the injection molding step, exhibits an extremely high reinforcing effect which has been unattainable heretofore because the liquid-crystal polymer can be readily fiberized in the molding step, and provides moldings excellent in flame retardancy.

Abstract: A polysiloxane composition comprising (i) an alkoxysilyl group-containing polysiloxane containing at least six siloxane structures having the following formula (I) in a molecule wherein R1 represents a methyl group, ethyl group or phenyl group, and R2 represents a group selected from the group consisting of hydrocarbon group and ether bond-containing hydrocarbon groups having 1 to 6 carbon atoms; and (ii) an alcohol having the formula R4(OR5)p—OH wherein R4 represents a C1-C18 alkyl group, a phenyl group or a benzyl group, R5 represents C1-C6 alkylene group and p is an integer of 0-20.

Abstract: The present invention relates to a composition for coating optical fibers which contains an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, and an adhesion promoter which includes a compound containing a cyclic structure interposed between at least two reactive silanes which are independently an alkoxysilane or a halosilane. Another composition of the present invention includes an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, an adhesion promoter which includes a compound containing a reactive silane group, and a carrier. The present invention also relates to optical fibers and methods of making such optical fibers using the compositions of the present invention.

Abstract: A flame retardant organic resin composition comprising (A) 100 parts by weight of an aromatic ring-containing organic resin and (B) 0.01 to 50 parts by weight of a branched organopolysiloxane described by average molecular formula (R12SiO2/2)a(R2SiO3/2)b(SiO4/2)c(R33O1/2)d(HO1/2)e, where R1, R2, and R3 are monovalent hydrocarbon groups selected from the group consisting of alkyl groups comprising 1 to 12 carbon atoms, alkenyl groups comprising 1 to 12 carbon atoms, and aryl groups comprising 6 to 12 carbon atoms, the content of aryl groups as a proportion of all the monovalent hydrocarbon groups is in a range of 20 mol % to 80 mol %, subscripts a and b are positive numbers, and subscripts c, d, and e are 0 or positive numbers, having a weight average molecular weight within a range of 300 to 10,000, and in which the content of silicon-bonded hydroxyl groups is not more than 1 wt %.

Abstract: A curable release coating composition is provided, comprising (a) a cationically curable functionalized polyorganosiloxane; (b) a photoinitiator; and (c) an adhesion promoter having the following formula (1): wherein R1 to R3 and R7 to R9 are independently alkyl, alkoxy, aryl, aryloxy or alkenyl hydrocarbon or halohydrocarbon groups having from 1 to 20 carbon atoms, R4 and R6 are are independently alkyl, aryl, or alkenyl hydrocarbon or halohydrocarbon groups having from 1 to 20 carbon atoms, and R5 is an alkyl, aryl, or alkenyl hydrocarbon or halohydrocarbon group having from 1 to 20 carbon atoms. Cured release coatings from theses compositions exhibit less rub off than other coatings, particularly on plastic substrates.

Abstract: A coating composition comprising the reaction product of a benzotriazole compound having a polymerizable vinyl group and a hydroxyl group with a silane compound and/or a (partial) hydrolyzate thereof is applied to plastic substrates, typically polycarbonate resin substrates to form transparent coatings having improved mar, weather and chemical resistance.

Abstract: A silicone rubber composition comprising 0.01 to 50 weight percent of a perfluoroalkyl group-containing polydiorganosiloxane having on a side chain (F1) an organic group selected from the group consisting of polyoxyalkylene group-containing organic groups, C12 or higher alkyl group, and polydialkylsiloxane chain-containing organic groups, and having of a side chain or at a molecular chain terminal (F2) a perfluoroalkyl group-containing organic group described by the general formula F(CF2)a—R1—, where R1 is selected from the group consisting of an alkylene group, an alkyleneoxyalkylene group, and a group in which ═CO or —COO— is present in an alkylelne chain, and a is an integer of at least 3, and having a weight average molecular weight of at least 1000.

Abstract: The invention pertains to a polydiorganosiloxane dispersibility improver for fluororesin powders that contains in the pendant position (A) an organic group selected from the set consisting of polyoxyalkylene-functional organic groups, alkyl groups having at least 12 carbon atoms, and polydialkylsiloxane chain-containing organic groups, and contains in the pendant position or the molecular chain terminal position, (B) a perfluoroalkyl-functional organic group with the general formula F(CF2)a—R1— in which R1 is alkylene or alkyleneoxyalkylene and a is an integer with a value of at least 3. The polydiorganosiloxane dispersibility improver for fluororesin powders has the ability to induce the uniform dispersion of fluororesin powders in organic resins. As a consequence the organic resin compositions have the ability to form uniform and transparent coatings that have an excellent surface lubricity.

Abstract: The present invention relates to a coating composition, which forms an anti-contamination coat having hydrophilicity on the surface, soil-release effect and excellent stain resistance to oil, and which is also suitable for outside wall coating of buildings, having excellent interlaminar adhesion when multiple coating is performed. A conventional anti-contamination coating was insufficient in stainproofing performance immediately after formation of the coat, and there was no coating which is superior in stain resistance to oil and interlaminar adhesion.

Abstract: A colored silicone rubber adhesive film and methods of adhesion by means of the silicone rubber adhesive film are disclosed. The silicone rubber adhesive film comprises (A) an organopolysiloxane; (B) a wet method hydrophobized reinforcing silica; (C) an organohydridopolysiloxane; (D) an azo or anthroquinone pigment, and (E) a curing accelerator. The colored silicone rubber adhesive film is easily handled, possesses excellent workability, and most important, makes it possible to verify the degree and the point of completion of the curing due to the presence of the pigment.

Abstract: The invention concerns reinforcement additives consisting of oligomeric and/or polymeric sulfur-containing organoorganooxysilanes, perhaps other unsaturated hydrocarbon-containing organoorganooxysilanes and reinforcing semiactive, active, and/or highly active carbon blacks, common in rubber, their production, and the use of the additives in perhaps silicatically filled vulcanizable rubber mixtures and compositions and in plastic mixtures or in carbon black dispersions.

Abstract: A silicone gel composition comprising (A) 100 parts by weight of an organopolysiloxane comprising 80 to 98 mole % of R(CH3)SiO2/2 units, 0.1 to 10.0 mole % of RSiO3/2 units, and 0.1 to 10 mole % of R(CH3)2SiO1/2 units, wherein R is methyl, phenyl, or alkenyl, and provided 0.25 to 4.0 mole % the R groups in the organopolysiloxane are alkenyl; (B) an organopolysiloxane having an average of at least 2 silicon-bonded hydrogen atoms per molecule in an amount sufficient to provide from 0.1 to 5 silicon-bonded hydrogen atoms per alkenyl group in component (A); (C) a platinum catalyst; (D) 0.01 to 10 parts by weight of a silica powder; and (E) 0.01 to 5 parts by weight of a thixotropic agent selected from at least one epoxy compound, at least one polyhydric alcohol, and mixtures thereof; wherein the silicone gel composition has an apparent viscosity ratio of 2.0 to 10.0 and cures to form a silicone gel having a ¼ consistency of 10 to 200.

Abstract: A crosslinkable fluororubber composition comprising (A) a perfluoro compound having at least two alkenyl groups and a divalent perfluoroalkylene or perfluoropolyether structure in the backbone or a polymer obtained by adding a compound having at least two hydrosilyl groups in the molecule to some alkenyl groups on the perfluoro compound, (B) a reinforcing filler, (C) a addition reaction crosslinking agent having a hydrosilyl group or a peroxide crosslinking agent, and(D) a surface treating agent having at least one fluoroalkyl or fluoropolyalkyl ether group and silanol groups is improved in heat resistance in the cured state by adding thereto (E) a heat resistance modifier selected from carbon black, metal oxides and metal hydroxides.

Abstract: The invention relates to a method for the preparation of nanoparticles formed from a random polymer of at least one compound of formula (I) 1

Abstract: Novel coating compositions including a polymer, a silane and a hydrazide. The polymer having at least one reactive functional group. Optionally, the coating composition includes a pigment. Coatings made from such compositions are also described. Methods of preparing a coating by applying the coating composition to a substrate and curing to form a film are also described herein. The preferred coating compositions are formaldehyde-free and isocyanate-free, can be air cured and provide coatings that exhibit improved adhesion to the substrate, improved print and block resistance and improved solvent and water resistance.

Abstract: This invention pertains to a dispersibility improver for fluororesin powders that has the ability to induce the uniform dispersion of fluororesin powders in organic resins; a modifier for application to organic resins wherein said modifier comprises fluororesin powder and the aforesaid dispersibility improver; and finally organic resin compositions that contain the aforesaid modifier and as a consequence have the ability to form uniform and transparent coatings having an excellent surface smoothness.

Abstract: An organosiloxane release coating composition useful for coating bakeware.

Abstract: The present invention provides a thermoplastic resin composition containing a thermoplastic resin and a silane-treated foliated phyllosilicate, the silane-treated foliated phyllosilicate being prepared by introducing a predetermined organosilane compound into a swellable layered silicate. According to the present invention, the silane-treated foliated phyllosilicate is prepared by introducing the organosilane compound into the swellable layered silicate after the basal spacing of the swellable layered silicate has been expanded, and is exfoliated as a number of fine layers dispersed uniformly in the thermoplastic resin composition of the present invention independently from one another. Thus, the present invention provides a thermoplastic resin composition excellent in mechanical properties, heat resistance, and the surface appearance of the resultant molded product.

Abstract: A mixture of a first aluminum hydroxide surface treated with a silicon-containing compound and having a mean particle size of 5-20 &mgr;m and a second aluminum hydroxide surface treated with a silicon-containing compound and having a mean particle size of 0.1-2.5 &mgr;m is blended in a silicone rubber composition comprising an organopolysiloxane, finely divided silica, and an organic peroxide. The silicone rubber composition cures into silicone rubber having sufficiently improved properties to serve as high-voltage electrical insulators, even when exposed to air polluted conditions or rigorous weather conditions.

Abstract: Sulfanylsilanes of the formula X1X2X3Si—A—S—SiR1R2R3 are prepared by reacting mercaptosilanes of the formula X1X2X3Si—Alkyl—SH with chlorosilanes Cl—SiR1R2R3. They are used as coupling agents in rubber mixtures.

Abstract: The present invention concerns compounds of Formula I R24-zSi[(Q)xA(CH2)yH]z or of Formula II [H(CH2)yA(Q)x]bSiR13-bSiR13-b[(Q)xA(CH2)yH]b, wherein Q is OCH2CH2, OCH2CHCH2, or any combination of one or more units of OCH2CH2 and OCH2CHCH2; A is O, OC6H4, S, NH, NR, O—C(O)—; R is alkyl, aryl, or alkaryl; x is greater than 2 and less than 100;y is greater than 0; except when A═OC6H4, then y is greater than or equal to 0; z is 1 to 4; and each R2 is independently selected from the group consisting of alkyl, aryl and alkaryl; B is O, C6H4, —(CH2)q—, and hydrocarbylene; q is greater than 1 and less than 30; b is 1 to 3; and each R1 is independently selected from the group consisting of alkyl, aryl, and alkaryl, used as nonvolatile in situ precursors to anti-fog agents for packaging films and a novel process of making such films.

Abstract: A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filler of bis[3-(triethoxysily)propyl]tetrasulfide, an alkylalkoxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.

Abstract: An electronic article having a thin film of a triazine ring-containing fluoropolymer obtained by trimerization of a cyano group of a cyano group-containing fluoropolymer having a polymerization unit of the formula (1): —[CF2—CF(A1)]—  (1) wherein A1 is —OR1CN, —CN or —R1CN, and R1 is a C1-C15 polyfluoroalkylene group which may have an ether bond.

Abstract: This invention describes the use of blocked mercaptosilanes wherein the hydrogen atom of the mercaptan functionality has been substituted to manufacture coating, adhesive, sealant and elastomeric compositions. The blocked mercaptosilanes described are unique in that they allow the application of elastomers to substrates to proceed while remaining inert toward coupling to the catalyst. The coupling reactions of these blocked mercaptosilicon compounds are triggered by exposure to an appropriate deblocking agent.

Abstract: The invention concerns a dispersion powder composition which is redispersible in water and is made from water-insoluble organic polymers, the composition being characterized in that it contains 0.1 to 30% by wt., relative to the weight of the organic polymers, of one ormore silicon compounds which are dispersible in water and which have a boiling point at normal pressure of 160° C., selected from the group comprising the silanes, polysilanes, oligosiloxanes, carbosilanes, polycarbosilanes, carbosiloxanes, polycarbosiloxanes and polysilylenedisiloxanes. The invention also concerns methods for manufacturing such compositions and their use.

Abstract: The invention relates to jointing compounds which are based on vinyl ester-ethylene copolymers or on acrylate polymers in the form of their aqueous dispersions or of water-redispersible powders with, if desired, other additives, such as fillers, plasticizers, thickeners, dispersants, antifoams, preservatives, pigments and water, wherein the jointing compounds contain from 0.01 to 1.0% by weight, based on the total weight of the jointing compound, of alkylalkoxysilanes of the general formula SiRn(OR′)4−n, where n is from 1 to 3, R′ represents identical or different alkyl radicals or monoalkyl glycol radicals having from 1 to 8 carbon atoms and R represents identical or different alkyl radicals having from 1 to 8 carbon atoms which may, if desired, be substituted with a halogen such as chlorine, or with ether, ester, amide, hydroxyl, amino, carboxyl, epoxy, carboxylic anhydride or carbonyl groups.

Abstract: Submicron boron nitride is used as a catalyst for thermally activating polysiloxane resins when uniformly mixed with the resin either using anhydrous acetone for wet mixing or simply hot melt mixing. Boron nitride is also used to coat the fibers using a particulate sizing approach. The coated fibers are used to activate the polymer resin blend. Fabric may be impregnated with the resin to mold high temperature composite laminates from which high temperature, non-metallic gaskets may be cut.

Abstract: Rubber compositions for footwear, conveyor belt covers, rolls, hoses, cables, rubberized fabrics, and grips containing (A) an elastomer, (B) 5 to 150 parts by weight of a filler, and (C) a polysiloxane represented by the formula (I): wherein R1, R2, R3, m, and n are as defined in the specification, having an average degree of polymerization of 3 to 1000 in a specific ratio with respect to the filler (B) and footwear, conveyor belt covers, rolls, hoses, cables, rubberized fabrics, and grips comprising these rubber compositions.

Abstract: A condensation curable coating composition comprises the following and any reaction product thereof: (A) a room temperature vulcanizable polyorganosiloxane composition; and (B) a marine foul release-enhancing proportion of at least one organic compatible silicone fluid free from silanol groups and being capable of blooming to the surface of a cured product of component A.

Abstract: The specification discloses polymeric articles such as fibers and fibrous webs which exhibit improved hydrophobicity and methods for making the articles. The articles comprise a polymer selected from the group consisting of polyolefins and polyesters and an additive of the structure R.sup.1 --A--Si(R.sup.2 R.sup.3)--O--(Si(R.sup.4 R.sup.5)--O)n--Si--(R.sup.6 R.sup.7)--A--R.sup.8, wherein R.sup.1 and R.sup.8 are selected from the group consisting of alkyl, aryl, alkylaryl groups and acyl and arylacyl derivatives of an aliphatic or aliphatic/aromatic mono-acid with a molecular weight of from about 250 to about 600 daltons, A is selected from the group consisting of --O--, --NH--C(O)--NH--(CH.sub.2).sub.3 --, and --C(O)--NH--(CH.sub.2).sub.3 --, R.sup.2, R.sup.3, R.sup.6 and R.sup.7 are selected from the group consisting of CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, and C.sub.4 H.sub.9, R.sup.4 and R.sup.5 are selected from the group consisting of CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, and (CH.sub.2).sub.

Abstract: A tread rubber composition of excellent hydrophobic property and water repellency suitable to a studless tire of excellent performance on ice, comprising a diene rubber comprising at least one rubber selected from the group consisting of natural rubber, isoprene and polybutadiene as a main ingredient and, based on 100 parts by weight of the diene rubber, from 10 to 40 parts by weight of a clay comprising kaolinite as a main ingredient and having an oil absorption amount of from 50 to 70 g/100 g and 0.1 to 8 parts by weight of a silane coupling agent.

Abstract: This invention relates generally to spacer assemblies for insulating glass units. More specifically, this invention relates to a single component desiccant matrix which can be applied to the interior of a spacer assembly at room temperature. Upon exposure to the ambient atmosphere, the desiccant matrix irreversibly cures.

Abstract: This invention relates generally to spacer assemblies for insulating glass units. More specifically, this invention relates to a single component desiccant matrix which can be applied to the interior of a spacer assembly at room temperature. Upon exposure to the ambient atmosphere, the desiccant matrix irreversibly cures.

Abstract: This invention describes the use of novel blocked mercaptosilanes, wherein the hydrogen atom of the mercaptan functionality has been substituted, in filled polymers. The blocked mercaptosilanes described are unique in that they allow the mixing of fillers with organic polymers to proceed while remaining inert toward coupling to the polymer. The coupling reactions of these blocked mercaptosilicon compounds are triggered by addition of an appropriate deblocking agent, which preferably is tetramethylthiuram monosulfide.

Abstract: A high performance, hot melt, single-component sealant which combines the prefered properties of single- and two-component sealants. The sealant comprises a styrene block copolymer, a moisture-curable silylated polyurethane prepolymer, an aromatic tackifier resin, a polar tackifier resin, a polyethylene wax and an organo silane adhesion promoter. Optionally, the sealant may include UV absorbers, antioxidants, plasticizers, catalysts, fillers, pigments, and the like. The sealant does not require mixing before it is applied at a high temperature to the surface that is to be sealed. After application, the sealant forms, upon cooling, a solid elastomer. Upon further exposure to atmospheric moisture, the sealant forms a thermoset crosslinked network having the preferred properties of two-component chemically-cured sealants. The sealant is suitable for use as an edge sealant for insulated glass.

Abstract: A dispersion powder of water-insoluble copolymers of ethylenically unsaturated monomers and optionally, further additives, which are redispersible in water and obtained by:a) emulsion polymerizing, at a pH of 2 to 9, a comonomer mixture of at least one comonomer selected from vinyl esters of unbranched or branched alkylcarboxylic acids having 1 to 18 carbon atoms, methacrylic acid esters of unbranched or branched alcohols having 1 to 18 carbon atoms, acrylic acid esters of unbranched or branched alcohols having 1 to 18 carbon atoms, olefins, dienes, vinylaromatics and vinyl halides, and 0.05 to 15.0% by weight, based on the total weight of the comonomer mixture, of at least one silicon compound of the formulaCH.sub.2 .dbd.CH--(CH.sub.2).sub.m --SiR(OR').sub.2,where m=0-8CH.sub.2 .dbd.CR"--CO.sub.2 --(CH.sub.2).sub.n SiR(OR').sub.2where n=1-6 ##STR1## b) spray drying aqueous dispersion, at a pH of 4 to 8 at a discharge temperature of 55 to 100.degree. C., before or after addition of any additives.

Abstract: A fluorine-containing polymer composition comprising a polymer having a functional group and a fluorine-containing aliphatic cyclic structure dissolved in a solvent mixture of an aprotic fluorine-containing solvent and a protic fluorine-containing solvent.