Patents Represented by Attorney Alan Zombeck
-
Patent number: 6743868Abstract: A method for making thermoplastic elastomeric compositions is disclosed wherein a polyamide, a silicone base, a stabilizer, and optional compatibilizer are first mixed, then a hydrosilation catalyst and subsequently an organohydrido silicon compound are added, and the silicone base is dynamically vulcanized.Type: GrantFiled: July 18, 2002Date of Patent: June 1, 2004Assignee: Dow Corning CorporationInventors: Frances Marie Fournier, Richard Leroy Rabe
-
Patent number: 6737473Abstract: Water-continuous emulsion of elastomeric polymers are disclosed having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water comprising; an elastomeric polymer, surfactant, water, optional plasticizer, optional low molecular weight acid, and is essentially free of organic solvents. The water-continuous emulsions of elastomeric polymers can be prepared by; (I) forming a premix that is essentially free of organic solvents comprising an elastomeric polymer and surfactant, and optionally a plasticizer and low molecular weight acid, and (II) adding water to the premix with mixing to form a water continuous emulsion of the elastomeric polymer having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water.Type: GrantFiled: July 13, 2001Date of Patent: May 18, 2004Assignee: Dow Corning CorporationInventors: Michael Gene Altes, Craig Steven Gross, Lee Bowen Jensen, Shaow Burn Lin, Anil Kumar Saxena, Todd Matthew Starke, Toshio Suzuki, Raymond Lee Tabler
-
Patent number: 6720373Abstract: Water-continuous emulsion of curable elastomeric polymers are disclosed having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water comprising; a curable elastomeric polymer, surfactant, internal cure additive, water, optional plasticizer, and optional low molecular weight acid. The water-continuous emulsions of curable elastomeric polymers can be prepared by; (I) forming a premix comprising an elastomeric polymer, surfactant, internal cure additive, and optionally a plasticizer and low molecular weight acid, and (II) adding water to the premix with mixing to form a water continuous emulsion of the curable elastomeric polymer having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water.Type: GrantFiled: July 13, 2001Date of Patent: April 13, 2004Assignee: Dow Corning CorporationInventors: Shaow Burn Lin, Todd Matthew Starke
-
Patent number: 6716908Abstract: There are disclosed alkoxysilyl functional silicone based materials that are thermodynamically stable, methods for making them and their uses. The methods comprise cross-linking of reactants that are dispersed in a diluent.Type: GrantFiled: January 30, 2002Date of Patent: April 6, 2004Assignee: Dow Corning CorporationInventors: Arnold Wade Lomas, William James Schulz, Jr.
-
Patent number: 6713131Abstract: A method for coating a substrate comprises the steps of: (I) applying a layer on the substrate of a curable composition comprising: (A) a water continuous emulsion comprising a curable elastomeric polymer having a viscosity of 0.5-1,000,000 KPa-s and a glass transition temperature up to 50° C., (B) an aqueous polyurethane dispersion, and optionally (C) a cure agent (II) exposing the layer to air for sufficient time to form a cured coating. Coated fabrics prepared accordingly are particularly useful in the construction of automobile protective airbags or other such inflatable coated textile devices.Type: GrantFiled: April 8, 2002Date of Patent: March 30, 2004Assignee: Dow Corning CorporationInventors: William Raye Blackwood, Shaow Burn Lin, Anil Kumar Saxena
-
Patent number: 6713558Abstract: Water-continuous emulsion of silylated elastomeric polymers are disclosed having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water comprising; a silylated elastomeric polymer, surfactant, water, optional plasticizer, and optional low molecular weight acid. The water-continuous emulsions of silylated elastomeric polymers can be prepared by; (I) forming a premix comprising an elastomeric polymer and surfactant, and optionally a plasticizer and low molecular weight acid, and (II) adding water to the premix with mixing to form a water continuous emulsion of the silylated elastomeric polymer having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water.Type: GrantFiled: July 13, 2001Date of Patent: March 30, 2004Assignee: Dow Corning CorporationInventors: Michael Gene Altes, Lee Bowen Jensen, Shaow Burn Lin, Anil Kumar Saxena, Todd Matthew Starke, Toshio Suzuki
-
Patent number: 6713569Abstract: A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C., (B) a silicone base comprising (B′) 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl radicals in its molecule and (B″) 5 to 200 parts by weight of a reinforcing filler, the weight ratio of said silicone base to said polyamide resin is from 35:65 to 85:15, (C) 0.Type: GrantFiled: October 26, 2001Date of Patent: March 30, 2004Assignee: Dow Corning CorporationInventors: Igor Chorvath, Frances Marie Fournier, Michael Kang-Jen Lee, Dawei Li, Robert Leo Oldinski, Richard Leroy Rabe, Jeffrey Paul Sage, Dean Curtis Gray, Yongjun Lee, Koji Nakanishi
-
Patent number: 6699925Abstract: A flame-retardant thermoplastic resin composition comprising (A) 100 weight parts of a thermoplastic resin, (B) 10 to 300 weight parts of particulate metal hydroxide; (C) 0.01 to 50 weight parts of a branched polyorganosiloxane having alkoxy groups and described by average unit formula R1a(R2O)bSiO(4−a−b)/2, where R1 and R2 are monovalent hydrocarbon groups selected from the group consisting of alkyl, alkenyl, and aryl groups, a is 0 or a positive number; b is a positive number; and a+b is a number from 0.75 to 2.5; (D) 0.01 to 50 weight parts of a branched polyorganosiloxane having silanol groups and described by average unit formula R3a(HO)bSiO(4−a−b)/2, where R3 is a monovalent hydrocarbon group selected from the group consisting of alkyl, alkenyl, and aryl groups, a is 0 or a positive number, b is a positive number, and a+b is a number from 0.75 to 2.5; and (E) 0.01 to 10 weight parts of a condensation reaction promoting catalyst.Type: GrantFiled: August 23, 2001Date of Patent: March 2, 2004Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Hidekatsu Hatanaka, Koji Nakanishi, Haruhiko Furukawa, Koji Shiromoto, Hiroshi Ueki, Yoshitsugu Morita
-
Patent number: 6686008Abstract: The invention is a composition made by mixing a multifunctional acrylate with an aminofunctional silane and an ethylenically unsaturated acid to form a reaction product, optionally dissolved in a solvent, characterized in that the multifunctional acrylate has a molecular weight of from about 100 to about 3000. The composition can be coated on a substrate, then optionally exposed to moisture and treated to initiate a free radical reaction. The invention can be applied to a variety of substrates used in packaging applications. The reaction mixture can further be cured by heating in the presence of moisture. The free radical reaction can be initiated by electron beam irradiation, ultraviolet radiation, gamma radiation, and/or heat and chemical free radical initiators.Type: GrantFiled: December 17, 1999Date of Patent: February 3, 2004Assignees: EG Technology Partners, L.P., Dow Corning Corporation, UBC Films PLC, Star HouseInventors: Patrick J. Merlin, Daniel Futter, John E. Wyman, Imtiaz Rangwalla, Gary Power, Karen Branch
-
Patent number: 6660807Abstract: An additive for organic resin comprising a powder comprising (A) a liquid organopolysiloxane having at least 0.001 wt % of silicon-bonded hydrogen atoms and at least 50 dimethylsiloxy repeating units and (B) an inorganic powder; and an organic resin comprising the additive.Type: GrantFiled: October 31, 2001Date of Patent: December 9, 2003Assignee: Dow Corning Toray Silcone Co., Ltd.Inventors: Yoshitsugu Morita, Haruhiko Furukawa, Koji Shiromoto, Hiroshi Ueki
-
Patent number: 6653378Abstract: This invention related to silicone elastomer compositions in the form of gels and/or organized structures. The silicone elastomer compositions are produced by reacting a siloxane having a first reactive group with a crosslinker having a second reactive group in a diluent. One reactive group is selected from epoxy-functional groups or chlorohydrin functional groups while the other reactive group is a functional group that reacts with epoxy-functional groups or chlorohydrin functional groups (i.e. amine, hydroxyl). The silicone elastomer compositions of the instant invention are particularly useful in personal care products, textiles, auto care products, and laundry products and for the delivery of active ingredients.Type: GrantFiled: December 13, 2001Date of Patent: November 25, 2003Assignee: Dow Corning CorporationInventors: Michael Salvatore Ferritto, Zuchen Lin, William James Schulz, Jr., Janet Mary Smith
-
Patent number: 6649704Abstract: A method for preparing a thermoplastic elastomer is disclosed, said method comprising (I) mixing (A) a rheologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C.Type: GrantFiled: October 26, 2001Date of Patent: November 18, 2003Assignee: Dow Corning CorporationInventors: Christopher Michael Brewer, Igor Chorvath, Frances Marie Fournier, Michael Kang-Jen Lee, Dawei Li, Robert Leo Oldinski, Lenin James Petroff, Richard Leroy Rabe, David Joseph Romenesko, Yongjun Lee, Koji Nakanishi
-
Patent number: 6608126Abstract: Silicone liquid crystals, silicone vesicles, and silicone gels are formed by combining (i) an amine functional silicone or an organic amine compound, (ii) an organic epoxide containing at least two epoxy groups or an epoxy functional silicone containing at least two epoxy groups, and (iii) a fluid such as water, a silicone fluid other than a silicone used in (i) and (ii), and a polar organic compound or nonpolar organic compound other than organic compounds used in (i) and (ii) in which the polar and nonpolar organic compound are present at a concentration to provide a level of solids less than 40 percent by weight based on the weight of (i)-(iii). These silicone liquid crystals, silicone vesicles, and silicone gels are useful in personal care for preparing various skin, hair, and underarm products.Type: GrantFiled: April 11, 2001Date of Patent: August 19, 2003Assignee: Dow Corning CorporationInventors: Michael Salvatore Ferritto, Zuchen Lin, William James Schulz, Jr.
-
Patent number: 6607717Abstract: There are disclosed novel quaternary ammonium functional silicone based emulsions and other formulations, as well as methods to make such emulsions and formulations. These materials have uses in personal care and other applications.Type: GrantFiled: October 24, 2001Date of Patent: August 19, 2003Assignee: Dow Corning CorporationInventors: Bethany K. Johnson, John Joseph Kennan, Feifei Lin
-
Patent number: 6590032Abstract: A thermoplastic resin composition comprising (A) 100 weight parts thermoplastic resin, (B) 0.1 to 100 weight parts of a mixture of (b-1) thermoplastic resin and (b-2) polyorganosiloxane that has a viscosity at 25° C. of at least 1,000,000 mPa·s, and (C) 0.1 to 100 weight parts polyorganosiloxane-bonded thermoplastic resin in which (c-1) thermoplastic resin and (c-2) polyorganosiloxane are chemically bonded to each other.Type: GrantFiled: April 10, 2001Date of Patent: July 8, 2003Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Haruhiko Furukawa, Koji Shiromoto, Hiroshi Ueki, Yoshitsugu Morita
-
Patent number: 6569931Abstract: A thermoplastic elastomer composition, method of preparation, and article prepared therefrom. The thermoplastic elastomer composition comprising (A) a thermoplastic elastomer, (B) a thermoplastic resin which has Rockwell hardness (R scale) exceeding 80 at 25° C., (C) a polydiorganosiloxane which has a Williams plasticity exceeding 100 at 25° C.; and (D) an inorganic filler.Type: GrantFiled: May 3, 2001Date of Patent: May 27, 2003Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.Inventors: Haruhiko Furukawa, Yoshitsugu Morita, Kevin Edward Lupton, David Joseph Romenesko
-
Patent number: 6569958Abstract: A method of preparing a thermoplastic elastomer, and compositions thereof, are disclosed comprising: (I) mixing (A) a thermoplastic resin comprising more than 50 percent by volume of a polyester resin having a softening point of 23° C. to 300° C., (B) a silicone elastomer comprising a diorganopolysiloxane, where the weight ratio of said silicone elastomer to said thermoplastic resin is from 35:65 to 85:15, (C) a glycidyl ester compatibilizer, (D) an organohydrido silicon compound, and (E) a hydrosilation catalyst, components (D) and (E) being present in an amount sufficient to cure said diorganopolysiloxane; and (II) dynamically vulcanizing said diorganopolysiloxane, wherein at least one property of the thermoplastic elastomer selected from tensile strength or elongation is at least 25% greater than the respective property for a corresponding simple blend wherein said diorganopolysiloxane is not cured and said thermoplastic elastomer has an elongation of at least 30%.Type: GrantFiled: October 19, 2001Date of Patent: May 27, 2003Assignee: Dow Corning CorporationInventors: Craig Steven Gross, Michael Kang-Jen Lee, Jun Liao
-
Patent number: 6569955Abstract: A method for preparing a thermoplastic elastomer is disclosed, said method comprising: (I) mixing (A) a Theologically stable polyamide resin having a melting point or glass transition temperature of 25° C. to 275° C., (B) a silicone base comprising a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups in its molecule and optionally (B″) 5 to 200 parts by weight of a reinforcing filler, the weight ratio of said silicone base to said polyamide resin is from 35:65 to 85:15, (C) a compatibilizer selected from glycidyl ester polymers or organofunctional grafted polyolefins, (D) an organohydrido silicon compound which contains an average of at least 2 silicon-bonded hydrogen groups in its molecule and (E) a hydrosilation catalyst, components (D) and (E) being present in an amount sufficient to cure said diorganopolysiloxane (B′); and (II) dynamically curing said diorganopolysiloxane (B′).Type: GrantFiled: October 19, 2001Date of Patent: May 27, 2003Assignee: Dow Corning CorporationInventors: Christopher Michael Brewer, Igor Chorvath, Frances Marie Fournier, Craig Steven Gross, Michael Kang-Jen Lee, Dawei Li, Richard Leroy Rabe
-
Patent number: 6541088Abstract: A composition which provides gas, flavor, and aroma barrier to substrates, where the composition is formed by mixing an ethylenically unsaturated acid, a bis-silane and a polyamine.Type: GrantFiled: March 3, 2000Date of Patent: April 1, 2003Assignees: EG Technology Partners, L.P., Dow Corning Corporation, Dow Corning S.A.Inventors: Imtiaz J. Rangwalla, John E. Wyman, Patrick Jacques Jean Merlin, Shrenik Mahesh Nanavati, Lisa Marie Seibel, Laurence Gallez
-
Patent number: 6534668Abstract: A process for the production of sulfur containing organosilicon compounds of the formula: (RO)3−mRmSi—Alk—Sn—Alk—SiRm(OR)3−m where R is independently a monovalent hydrocarbon of 1 to 12 carbon atoms; Alk is a divalent hydrocarbon of 1 to 18 carbon atoms; m is an integer of 0 to 2, n is a number from 1 to 8; based on phase transfer catalysis techniques is disclosed. The process comprises reacting: (A) a sulfide compound having the formula M2Sn or MHS, where H is hydrogen, M is ammonium or an alkali metal, n is as defined above, with (B) a silane compound of the formula; (RO)3−mRmSi—Alk—X where X is Cl, Br or I, and m is the same as above, and optionally, (C) sulfur in the presence of a phase transfer catalyst and an aqueous phase containing a buffer. The improvement of the present invention is characterized by adding a buffer to the aqueous phase, which minimizes or prevents gelling of the sulfur containing organosilicon compounds.Type: GrantFiled: June 29, 2001Date of Patent: March 18, 2003Assignee: Dow Corning CorporationInventors: Michael Wolfgang Backer, Howard Marvin Bank, John Michael Gohndrone, William Charles Maki, Charles Edmund Skinner, Anil Kumar Tomar, Hongjun Yue