Two Or More Si Atoms And At Least One Si-c Or Si-h Group Patents (Class 524/267)
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Patent number: 5708054Abstract: A two-part composition comprising a liquid composition (I) composed of the components (A), (C), and (E) described below and a liquid composition (II) composed of the components (A) (B), (C), and (D) described below, which yield upon mixing a curable liquid silicone composition comprising(A) an alkenyl-substituted poyorganopolysiloxane;(B) a hydrogen-substituted organopolysiloxane in an amount that provides 0.3 to 10 moles silicon-bonded hydrogen from component (B) per 1 mole alkenyl in component (A);(C) an inorganic filler that has a specific surface of 50 to 500 m.sup.2 /g;(D) an alkoxy-substituted organopolysiloxane; and(E) platinum catalyst in a quantity sufficient to cure the instant composition;wherein the curable silicone composition that results when liquid composition (I) and liquid composition (II) are mixed, is thixotropic and has a viscosity, immediately upon the mixing that is greater than the viscosity of liquid composition (II).Type: GrantFiled: October 28, 1996Date of Patent: January 13, 1998Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Katsutoshi Mine, Takae Takeuchi, Kimio Yamakawa
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Patent number: 5693696Abstract: A modified polyurethane structionally incorporating filler having active hydrogen groups on a surface thereof into a polyurethane polymer. The filler is first fluidized with a polyol and then reacted with a linking component having an organo reactive group that is reactive with an isocyanate. Polyisocyanate and additional polyol are added to the reaction mixture such that the isocyanate reacts with the linking component and the polyol to form a polymer wherein the filler is an integral unit in the polymer. The resultant modified polyurethane has good dynamic properties and is surprisingly resilient. Preferred fillers are sand, clay talc and mixtures thereof.Type: GrantFiled: January 16, 1996Date of Patent: December 2, 1997Assignee: MCP Industries, Inc.Inventors: Thomas M. Garrett, Indulis Gruzins
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Patent number: 5690326Abstract: Photographic film sheet picking-up device in a feeding apparatus for feeding such sheets from a station containing at least one sheet to a following station, such as a transport or processing station where the film sheets are to be processed one at a time, wherein such sheet picking-up device comprises rubber suction cups containing at least one antistatic compound selected within the group consisting of a) a metal salt selected within the group consisting of perfluoroalkylsulfonylmethide compounds and perfluoroalkylsulfonylimide compounds, b) a perfluoroalkyl(ene)polyoxyethylene non-ionic type surfactant, c) a modified polyoxyethylenepolysiloxane type surfactant, and a mixture of such compounds.Type: GrantFiled: April 16, 1996Date of Patent: November 25, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dario Ballerini, Marco Notini
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Patent number: 5691398Abstract: A composition comprising polylactic acid and 0.05 to 5 parts by weight of silicone oil per 100 parts by weight polylactic acid, having improved mechanical properties.Type: GrantFiled: October 19, 1995Date of Patent: November 25, 1997Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoichi Tanifuji, Yuji Tokushige
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Patent number: 5679734Abstract: The present invention relates more specifically to silicone compositions which can be crosslinked into an adhesive gel by hydrosilylation at room temperature, as well as to the gels thus obtained. One of the objects of the invention is to produce, easily and rapidly, gels having viscoelastic qualities, low-temperature physical stability and adhesion properties.This objective is achieved by virtue of the compositions comprising:a polyorganosiloxane POS (I) of the SiVi type (Vi=vinyl);a POS (II) of the SiH type;an extender POS (III) of the .alpha.,.omega.-hydrogen, SiH type; and, optionally, a diluent POS (IV) of the polydimethylsiloxane type; where ##EQU1## Application: protection of electronic equipment (potting), adhesives, prostheses.Type: GrantFiled: April 12, 1996Date of Patent: October 21, 1997Assignee: Rhone-Poulenc ChimieInventors: Pierre-Michel Peccoux, Christian Pusineri
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Patent number: 5674567Abstract: A primerless, one-part, heat curable, low volatile organic compound, polyurethane composition comprises a blocked polyurethane prepolymer made from a liquid hydroxyl terminated intermediate and an excess of a polyisocyanate, a curing agent, silicone and/or low friction polymer and optional fillers. Upon cure of the polyurethane composition, the silicone oil and/or low friction polymer generally imparts low friction and high abrasive resistant properties. A desired use is as a glass run channel coating.Type: GrantFiled: November 2, 1995Date of Patent: October 7, 1997Assignee: GenCorp Inc.Inventors: Charles M. Kausch, Earl G. Melby, Satish C. Sharma
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Patent number: 5668204Abstract: A thermoplastic molding composition containing an aromatic polycarbonate and a particular siloxane compound is disclosed. The composition which is based on a polycarbonate resin having bifunctional structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, or C.sub.7 -C.sub.12 -aralkyl,m is an integer from 4 to 7,R.sup.3 and R.sup.4 selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX stands for carbon,under the condition that R.sup.3 and R.sup.4 are both alkyl groups on at least one X atom, andcontains from 0.001 to 1% by weight of at least one siloxane corresponding to formula (II) ##STR2## wherein R denotes hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.6 -C.sub.10 -aryl or C.sub.1 -C.sub.Type: GrantFiled: March 19, 1992Date of Patent: September 16, 1997Assignee: Bayer AktiengesellschaftInventors: Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Dieter Freitag, Dieter Constant
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Patent number: 5665803Abstract: A melt-extrudable thermoplastic composition is proved which includes a thermoplastic polymer and an improved additive system. In one embodiment, a melt-extrudable thermoplastic composition is provided which includes a thermoplastic polyolefin and an improved additive system made up of a first component and a second component, in which (A) the first component is a defined alkyl-substituted polysiloxane having a number-average molecular weight of from about 3,000 to about 36,000 and which is present in an amount of from about 0.01 to about 3 percent by weight, based on the amount of thermoplastic polyolefin; and (B) the second component is a hydrophobic fumed silica, in which the weight ratio of the first component to the second component is in the range of from about 10 to about 70. In a desired embodiment, the particles of second component are in the range of from about 0,001 to about 1 micrometer.Type: GrantFiled: July 7, 1995Date of Patent: September 9, 1997Assignee: Kimberly-Clark CorporationInventors: Ronald Sinclair Nohr, John Gavin MacDonald, Peter Michlovich Kobylivker, Gunilla Elsa Gillberg-LaForce
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Patent number: 5660935Abstract: An artificial snowseed in the form of granules of a super water-absorbing polymer already coated with a fluorine-containing material and/or a silicone oil. The granules can retain the original spherical form after absorption of water without sticking to each other. Further the present invention provides a method for making artificial snow comprising freezing the above artificial snowseed after absorption of water.Type: GrantFiled: March 17, 1995Date of Patent: August 26, 1997Assignees: Osaka Organic Chemical Industry Co., Ltd., Snova CorporationInventors: Taiji Kambayashi, Hideyuki Mekata, Hiroaki Umezu, Hiroshi Matsunaga
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Patent number: 5656684Abstract: The present invention provides special silanes, their preparation and their use as plastics additives for improving the mechanical and flameproofing properties of the plastics.Type: GrantFiled: February 20, 1996Date of Patent: August 12, 1997Assignee: Bayer AGInventors: Burkhard Kohler, Klaus Horn, Helmut-Martin Meier
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Patent number: 5650457Abstract: The rubber mixtures according to the invention, containing at least one rubber, a vulcanizing agent, a filler, optionally other rubber additives and at least one reinforcing additive of the formula ##STR1## are used for the production of vulcanized rubbers, from which in particular tires can be produced having a low rolling resistance combined with a good wet skid resistance and a high abrasion resistance.Type: GrantFiled: May 6, 1996Date of Patent: July 22, 1997Assignee: Bayer AGInventors: Thomas Scholl, Hermann-Josef Weidenhaupt
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Patent number: 5643982Abstract: A non-ozone depleting, non-flammable co-solvent composition useful as a carrier for actives such as accelerators, catalysts, initiators, activators and other primer materials for use as adhesive promoter compositions in combination with adhesive compositions. The co-solvent compositions include an azeotropic solution of a perfluorocarbon and an alkylsiloxane.Type: GrantFiled: October 13, 1994Date of Patent: July 1, 1997Assignee: Loctite CorporationInventor: Ju-Chao Liu
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Patent number: 5643983Abstract: The method of this invention makes multi-ply wood composite laminates from several wood veneer sheets using a 100% solids single component adhesive mixture, prepared in the absence of water, of isocyanate terminated prepolymer, polymeric diisocyanate and polysiloxane or aliphatic cyclosaturated C.sub.14 -C.sub.30 hydrocarbon.Type: GrantFiled: August 30, 1995Date of Patent: July 1, 1997Assignee: Ashland Inc.Inventor: Shang Lee
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Patent number: 5631310Abstract: White-pigmented polymers (particularly, polyolefins such as polyethylene) containing white pigments treated with at least one silane or a mixture of at least one silane and at least one polysiloxane are disclosed to improve processibility in compounding and improve performance properties such as lacing resistance in a polymeric matrix.Type: GrantFiled: June 7, 1995Date of Patent: May 20, 1997Assignee: E. I. du Pont de Nemours and CompanyInventors: Patricia A. Tooley, Dwight A. Holtzen, Joseph A. Musiano
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Patent number: 5624985Abstract: 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.Type: GrantFiled: December 12, 1994Date of Patent: April 29, 1997Assignee: General Electric CompanyInventors: Michael A. Lucarelli, William J. Raleigh, Kimberlie A. Schryer
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Patent number: 5618869Abstract: A rubber composition suitable for use in tread of tires, particularly studless tires having increased digging and adhesive frictions to improve characteristics on icy roads of the tires without substantial deterioration of the durability of the tires or with minimizing the deterioration, which comprises a diene rubber component, 3 to 30 parts by weight of an ebonite powder and 0.1 to 3 parts by weight of a silylating agent, respectively, per 100 parts by weight of the rubber component.Type: GrantFiled: December 19, 1995Date of Patent: April 8, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kazuo Kadomaru, Yoichi Mizuno
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Patent number: 5614598Abstract: 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.Type: GrantFiled: May 12, 1995Date of Patent: March 25, 1997Assignee: Comfort Technologies, Inc.Inventors: Lloyd F. Barringer, Jr., William T. Ledford
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Patent number: 5612438Abstract: Novel curable siloxane polymers having integral ultra-violet light absorbers are disclosed which are useful in preparing a variety of commercial silicone products requiring excellent resistance to loss of UV protection due to external forces.Type: GrantFiled: October 25, 1995Date of Patent: March 18, 1997Assignee: General Electric CompanyInventors: William J. Raleigh, Raymond J. Thimineur, James A. Campagna
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Patent number: 5610213Abstract: Cold processable heat curable alkenyl silicone rubbers that comprising an alkenyl silicone gum or mixture of alkenyl silicone gums selected from the group of alkenyl silicone gums having the formula:(M.sub.a M.sup.vi.sub.1-a)(D.sup.vi).sub.x (D).sub.y (M.sub.a M.sup.vi.sub.1-a);a process for making such heat curable rubbers, and articles of manufacture made therefrom.Type: GrantFiled: June 30, 1995Date of Patent: March 11, 1997Assignee: General Electric CompanyInventors: Chris A. Sumpter, Brian J. Ward
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Patent number: 5610216Abstract: The present invention relates to a rubber composition containing silica reinforcement and to pneumatic tires having treads comprised of such rubber composition.A rubber composition comprises at least one elastomer, silica, carbon black and a silica coupler comprised of poly-(2-propanol-1,3-polysulfide).Type: GrantFiled: February 20, 1996Date of Patent: March 11, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, Lawson G. Wideman
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Patent number: 5607994Abstract: White-pigmented polymers (particularly, polyolefins such as polyethylene) containing white pigments treated with at least one silane or a mixture of at least one silane and at least one polysiloxane are disclosed to improve processibility in compounding and improve performance properties such as lacing resistance in a polymeric matrix.Type: GrantFiled: February 28, 1994Date of Patent: March 4, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Patricia A. Tooley, Dwight A. Holtzen, Joseph A. Musiano
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Patent number: 5605951Abstract: The present invention relates to a rubber composition containing silica reinforcement and to pneumatic tires having treads comprised of such rubber composition.A rubber composition comprises at least one elastomer, silica, carbon black and a silica coupler comprised of 3,3'-tetrathiodipropionitrile polysulfide mixture.Type: GrantFiled: February 20, 1996Date of Patent: February 25, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, Lawson G. Wideman
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Patent number: 5602214Abstract: Pressure sensitive silicone adhesive compositions having excellent peel adhesive strength, high tack and excellent quick stick capability are provided. Generally the adhesive composition is made of a MQ resin and a silicone gum, to which a silicone fluid is added. A cure catalyst can then be added to the mixture prior to coating.Type: GrantFiled: August 22, 1995Date of Patent: February 11, 1997Assignee: General Electric CompanyInventors: Shaow B. Lin, Stuart R. Kerr, III
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Patent number: 5601641Abstract: An aqueous reaction mixture having a pH of 4.5 to 5.5 of a methyl terminated siloxane emulsified polymer, a methyl triethoxysilane, a mixture of nonyl and octyl phenol derivative surfactants, fluorinated alkyl ester surfactant and synthetic ethoxylated amine surfactants, a silanol terminated polydimethylsiloxane hydroxyl terminated polybutadiene and ethanol. The reaction mixture is coated on a mold core surface and cured with heat to form a mold release surface that can be used in excess of twelve times prior to recoating.Type: GrantFiled: December 15, 1995Date of Patent: February 11, 1997Assignee: TSE Industries, Inc.Inventor: William D. Stephens
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Patent number: 5599862Abstract: The invention relates to a mixture of(A) ABS graft polymer and(B) 0.05 to 2% by weight (based on the mixture) of a polyether- or polyester-grafted siliconewith improved surface gloss.Type: GrantFiled: May 30, 1995Date of Patent: February 4, 1997Inventors: Burkhard Kohler, Werner Tischer, Karl-Erwin Piejko
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Patent number: 5594059Abstract: The impact strength of a thermoplastic molding composition containing aromatic polycarbonate resin and thermoplastic polyester is improved upon the incorporation therewith of a particular silicone rubber powder. The silicone rubber powder, added at a level of about 3 to 25 contains a mixture of (a) a polydiorganosiloxane and (b) finely divided silica filler.Type: GrantFiled: July 6, 1995Date of Patent: January 14, 1997Assignee: Bayer CorporationInventors: James P. Mason, James A. DiBernardo
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Patent number: 5585420Abstract: Filled polymer compositions having improved scratch resistance comprise as a major component a polymer resin blend itself comprising 70 to 95% polypropylene homopolymer, and 5 to 30% low density polyethylene, particularly lldpe or vldpe; and 5 to 30% plate like inorganic filler. Optional components include high rubber ethylene-propylene copolymers, fatty acid amides, polyorganosiloxanes and epoxy resins as well as pigments, antioxidants etc. The compositions are formed by mixing the plate like filler and the epoxy resin prior to mixing with another component of the composition which is significantly absorbed by the plate like filler, and subsequently mixing the components of the composition in the melt phase, particularly in a twin screw extruded, and extruding the composition.Type: GrantFiled: July 19, 1995Date of Patent: December 17, 1996Assignee: BASF AktiengesellschaftInventors: John R. Grasmeder, Christopher I. Lindsay
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Patent number: 5580921Abstract: The present invention relates to storage-stable polysiloxane compositions which give permanently water-wettable elastomers. The polysiloxane compositions of the present invention which vulcanize to yield elastomers are useful as dental impression compositions.Type: GrantFiled: February 10, 1994Date of Patent: December 3, 1996Assignee: Wacker-Chemie GmbHInventors: Michael Stepp, Heinz Hefner, deceased, Peter Huber, Johann Mueller, Richard Schmidlkofer, Arnold Garhammer
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Patent number: 5580915Abstract: Silicone adhesive compositions having excellent quick stick, peel and tack adhesion properties are provided. Generally the adhesive composition is the reaction mixture of a silanol-containing siloxane resin, a silicone polymer gum, and a silicone fluid containing functionality capable of reacting with silanol and silanol-like groups; optionally, a solvent; and a cure catalyst are added.Type: GrantFiled: August 4, 1995Date of Patent: December 3, 1996Assignee: General Electric CompanyInventor: Shaow B. Lin
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Patent number: 5576378Abstract: Polymers with a high glass transition temperature are used in cement additives to produce a portland cement mortar or concrete that does not have the initial stickiness typical of prior art polymer-modified portland cement compositions and does not form a crust on the surface when exposed to air drying, thus improving the working time of the mix. This simplifies equipment cleaning and permits the use of transit mixers for field applications of polymer-modified concrete. The properties of the mortar and concrete modified with these materials, both in the plastic and hardened state, are equivalent or superior to those of the currently available products which use film-forming materials. Within the scope of this invention are a redispersible powdered cement additive, a redispersible polymer powder and a ready-to-use portland cement composition, as well as related processes.Type: GrantFiled: February 24, 1994Date of Patent: November 19, 1996Assignee: The Dow Chemical CompanyInventors: Louis A. Kuhlmann, James W. Young, Jr., Daniel Moldovan
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Patent number: 5567531Abstract: A method for forming a polymer with a decreased surface energy. The method comprises the steps of mixing from about 99.5% to about 95.0% of a polymer selected from the group consisting of polyolefin and polyester with from about 0.5% to about 5.0% of a surface modifying agent having the structure R.sup.1 --A--Si (R.sup.2 R.sup.3)--O--[Si(R.sup.4 R.sup.5)--O].sub.n --Si--(R.sup.6 R.sup.7)--A--R.sup.8, and forming the mix of polymer and additive to a desired form. R.sup.1 and R.sup.8 are selected from the group consisting of derivatives of aliphatic or aliphatic/aromatic alcohols or mono-acids with a molecular weight of between about 250 to about 600 daltons, and 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 --. The agent is substantially intimately mixed with the polymer.Type: GrantFiled: August 28, 1995Date of Patent: October 22, 1996Assignee: Arizona Chemical CompanyInventors: Eric S. Gardiner, John T. Geoghegan
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Patent number: 5563197Abstract: A stable dispersion of a finely divided solid such as a pigment in an organosiloxane composition can be prepared as a homogeneous thixotropic liquid, paste or gel by blending the solid with a finely divided, partially treated silica, a specified class of liquid diorganosiloxane/oxyalkylene copolymers and, as a diluent, at least one liquid organosiloxane oligomer having a density lower than the density of the dispersed solid. The gels and pastes convert to flowable liquids when subjected to shearing forces.Type: GrantFiled: August 2, 1995Date of Patent: October 8, 1996Assignee: Dow Corning CorporationInventors: Joan M. Donatelli, Daniel F. McMahon
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Patent number: 5561191Abstract: Method for the production of a thermostable crosslinked PVC copolymer where the crosslinking is carried out in the presence of humidity and after processing of the polymer. The copolymer is a copolymer of vinyl chloride and 0.05-10 weight % of a vinyl containing alkoxysilane compound. Preferably methacryloxy-propyltrimethoxy-silane or methacryloxy-propyltriethoxysilane is used as comonomer. The crosslinking can be carried out independent of the type of stabilizer. A condensation catalyst and also an inhibitor can be used to prevent too early crosslinking.Type: GrantFiled: March 6, 1995Date of Patent: October 1, 1996Assignee: Norsk Hydro A.SInventors: Morten Lundquist, Jan O. Laundal
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Patent number: 5548011Abstract: The invention relates to blends of polycarbonates, branched, phenolic hydroxy functional dimeric fatty acid polyesters and at least one component selected from polyisobutylene, silicones and mineral oils.Type: GrantFiled: August 31, 1995Date of Patent: August 20, 1996Assignee: Bayer AGInventors: Burkhard Kohler, Wolfgang Ebert, Klaus Horn, Richard Weider, Thomas Scholl
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Patent number: 5545831Abstract: The present invention relates to a silicone composition comprising (A) a silicone release coating composition and (B) an organosilicon compound having the general formula ##STR1## where R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is an alkylene group, R.sup.3 is a hydrogen atom, an alkenyl group, or a hydroxyl group, m has a value of zero or greater, and n has a value of greater than zero which cures to form a release coating. The silicone release coating compositions of this invention give a cured release coating which exhibits optimal release values against lucky substances and which does not impair the residual adhesion of tacky substances.Type: GrantFiled: October 19, 1994Date of Patent: August 13, 1996Assignee: Dow Corning Toray Silicone Co., LTD.Inventors: Nobuo Kaiya, Hideki Kobayashi, Wataru Nishiumi
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Patent number: 5545682Abstract: The introduction of release coating-forming silicone compositions that yield cured release coatings that exhibit excellent release properties against tacky substances and do not impair the residual adhesion of tacky substances.Silicone composition for the formation of cured release coatings, that characteristically comprises(A) 100 weight parts of a cured coating-forming silicone composition into which there is admixed(B) 0.5 to 500 weight parts organosilicon polymer with the following average unit formula ##STR1## wherein R represents C.sub.1 to C.sub.10 monovalent hydrocarbon groups that are free of aliphatic unsaturation; R.sup.1 represents organic groups selected from the group consisting essentially of C.sub.2 to C.sub.20 alkylene groups and organic groups with the formulas --R.sup.3 (OR.sup.3).sub.y -- and --R.sup.3 --(R.sub.2 SiO).sub.z R.sub.2 Si--R.sup.3 -- (R is defined as above, R.sup.3 denotes C.sub.2 to C.sub.Type: GrantFiled: May 23, 1995Date of Patent: August 13, 1996Assignee: Dow Corning Silicone Co., Ltd.Inventors: Nobuo Kaiya, Hideki Kobayashi
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Patent number: 5543443Abstract: Disclosed are denture adhesive compositions possessing improved aesthetics and comprising a component which provides for easy removal of the adhesive from the denture and a hydrophilic powder.Type: GrantFiled: August 3, 1992Date of Patent: August 6, 1996Assignee: The Procter & Gamble CompanyInventors: Jayanth Rajaiah, Abel Saud, Bruce J. MacKay, Dennis R. Grubbs
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Patent number: 5539028Abstract: A water-resistant, fiberboard for use in making panels and tiles for building construction is disclosed. The fiberboard contains primary components which include mineral fiber, low density, nonfibrous inorganic filler and organic fiber. The fiberboard includes about 0.1-2 wt % of silicone fluid, preferably polymethylhydrogensiloxane, which improves water resistance without adversely affecting other physical properties.Type: GrantFiled: June 7, 1995Date of Patent: July 23, 1996Assignee: The Celotex CorporationInventors: Allan F. Bednar, Kenneth W. Espeut
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Patent number: 5534574Abstract: A rubber composition comprised of elastomer, silica, a silica coupler, 2-mercaptobenzothiazole and, optionally, carbon black, in which the silica, silica coupler and at least a portion of the 2-mercaptobenzothiazole are added in a non-productive mix stage.Pneumatic tires having treads comprised of such rubber composition are provided.Type: GrantFiled: March 10, 1995Date of Patent: July 9, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, David J. Zanzig, Mark S. Sinsky
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Patent number: 5516578Abstract: The invention relates to a water and oil repellency imparting composition which comprises:(a) a fluoroaliphatic radical-containing agent; and(b) a polymer comprising cyclic carboxylic anhydride groups.Additionally, the composition may comprise:(c) a softener and/or a plasticizer. The composition provides water and oil repellent properties to fibrous and other substrates treated therewith and it shows high compatibility with the commonly used softeners.Type: GrantFiled: October 14, 1994Date of Patent: May 14, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dirk M. Coppens
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Patent number: 5502095Abstract: A thermoplastic elastomer composition comprising (A) 50-98% by weight of a thermoplastic polyester elastomer, (B) 50-2% by weight of a rubber and (C) a polyorganosiloxane in a proportion of 0.01-10 parts by weight per 100 parts of the total of the components (A) and (B). The above thermoplastic elastomer composition enables one to improve the flexibility and compression set of the thermoplastic polyester elastomer excellent mechanical properties, heat resistance and oil resistance without impairing the abrasion resistance of the thermoplastic polyester elastomer.Type: GrantFiled: November 4, 1993Date of Patent: March 26, 1996Assignees: Japan Synthetic Rubber Co., Ltd., NTN CorporationInventors: Toshihumi Ueshima, Ko Hasegawa, Toshio Teramoto, Tatsuo Nakajima, Takeyoshi Konomoto
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Patent number: 5487948Abstract: Bis(bis-silylalkyl) dicarboxylates, especially maleates and fumarates, are prepared by a three-step process including esterification of malaic or fumaric acid or a functional derivative thereof with a branched dienol such as 1,6-heptadien-4-ol to form an alkadienol ester, reaction of the olefinic groups in said ester with a chlorosilane and alcoholysis of the chlorine atoms attached to silicon. The products are useful as adhesion promoters in addition curable polyorganosiloxane compositions.Type: GrantFiled: January 26, 1995Date of Patent: January 30, 1996Assignee: General Electric CompanyInventor: Judith Stein
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Patent number: 5488092Abstract: A primerless, one-part, heat curable, low volatile organic compound, polyurethane composition comprises a blocked polyurethane prepolymer made from a liquid hydroxyl terminated intermediate and an excess of a polyisocyanate, a curing agent, silicone and/or low friction polymer and optional fillers. Upon cure of the polyurethane composition, the silicone oil and/or low friction polymer generally imparts low friction and high abrasive resistant properties. A desired use is as a glass run channel coating.Type: GrantFiled: April 26, 1994Date of Patent: January 30, 1996Assignee: GenCorp Inc.Inventors: Charles M. Kausch, Earl G. Melby, Satish C. Sharma
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Patent number: 5486298Abstract: The present invention relates to a fiber treatment composition comprising a mixture of a dimethylpolysiloxane, a polyoxyalkylene-functional diorganopolysiloxane, and an amine-containing antioxidant or a phenol-containing antioxidant. The fiber treatment compositions of this invention exhibit excellent lubricity, static resistance, and long-term storage stability.Type: GrantFiled: February 24, 1995Date of Patent: January 23, 1996Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Takayuki Aso, Isao Ona, Masaru Ozaki
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Patent number: 5484858Abstract: The properties of polyphenylene ether-polyamide mixtures can be improved by the addition of polysiloxane compounds.Type: GrantFiled: October 18, 1994Date of Patent: January 16, 1996Assignee: General Electric CompanyInventors: Hendrikus J. E. Smits, Roelof van der Meer, Adelbert H. L. Groothuis
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Patent number: 5484832Abstract: A modified polyurethane structionally incorporating silica into a polyurethane polymer. The silica is first fluidized with a polyol and then reacted with a linking component having an organo reactive group that is reactive with an isocyanate. Polyisocyanate and additional polyol are added to the reaction mixture such that the isocyanate reacts with the linking component and the polyol to form a polymer wherein the silica is an integral unit in the polymer. The resultant modified polyurethane has good dynamic properties and is surprisingly resilient.Type: GrantFiled: December 14, 1993Date of Patent: January 16, 1996Assignee: MCP Industries, Inc.Inventors: Thomas M. Garrett, Indulis Gruzins
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Patent number: 5476892Abstract: Polyols are conditioned and stabilized by mixing them at 0 to 150.degree. C. with from about 0.0001 to about 1% by weight, based on the quantity of polyol, of a silylated acid corresponding to the formula:X--[Si(CH.sub.3).sub.3 ].sub.nin whichX represents a neutral acid residue obtained by removal of the acidic hydrogen atoms from an n-basic acid having a maximum pKa value of 3, provided that the n-basic acid is not a hydrohalic acid andn represents an integer of from 1 to 3.The resultant polyol is characterized by good color and activity properties. The stabilized polyols are particularly useful in the production of polyurethanes, particularly polyurethane foams.Type: GrantFiled: December 9, 1993Date of Patent: December 19, 1995Assignee: Bayer AktiengesellschaftInventors: Hans J. Scholl, Hartmut Nefzger, Helmut Reiff, Bernd Quiring
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Patent number: 5474828Abstract: 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.Type: GrantFiled: June 30, 1994Date of Patent: December 12, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Toshitaka Kouyama, Keiichiro Suzuki, Toshio Enoki, Yasuo Sakaguchi
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Patent number: 5473002Abstract: A method for forming a polymer with a decreased surface energy. The method comprises the steps of mixing from about 99.5% to about 95.0% of a polymer selected from the group consisting of polyolefin and polyester with from about 0.5% to about 5.0% of a surface modifying agent having the structure R.sup.1 --A--Si(R.sup.2 R.sup.3)--O--[Si(R.sup.4 R.sup.5)--O].sub.n --Si--(R.sup.6 R.sup.7)--A--R.sup.8, and forming the mix of polymer and additive to a desired form. R.sup.1 and R.sup.8 are selected from the group consisting of derivatives of aliphatic or aliphatic/aromatic alcohols or mono-acids with a molecular weight of between about 250 to about 600 daltons, and 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 --. The agent is substantially intimately mixed with the polymer.Type: GrantFiled: September 23, 1993Date of Patent: December 5, 1995Assignee: Arizona Chemical CompanyInventors: Eric S. Gardiner, John T. Geoghegan
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Patent number: 5459194Abstract: Liquid adhesion-promoting compositions for cohesively bonding organosiloxane materials to organic polymers comprise (A) a copolymer derived from at least one ethylenically unsaturated organic compound and at least one silane containing an ethylenically unsaturated organic group and at least two silicon-bonded hydrolyzable groups per molecule, (B) an organohydrogensiloxane, (C) an aminosilane containing at least 2 alkoxy or other hydrolyzable groups, and (D) an amount of an organic liquid sufficient to solubilize ingredients A, B and C of said composition and achieve the desired viscosity.Type: GrantFiled: May 31, 1994Date of Patent: October 17, 1995Assignee: Dow Corning CorporationInventor: Kent R. Larson