Ingredient Contains A Silicon Atom As Part An Organic Compound Patents (Class 521/110)
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Publication number: 20110301254Abstract: The invention provides a process for preparing organically modified siloxanes by catalysed reaction of siloxanes having at least one SiH group with a compound having a double bond.Type: ApplicationFiled: June 6, 2011Publication date: December 8, 2011Applicant: Evonik Goldschmidt GmbHInventors: Wilfried Knott, Klaus-Dieter Klein
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Patent number: 8063113Abstract: The present invention relates to polyurethane foam-forming composition containing polysilsesquioxanes that provide high resilience flexible polyurethane molded foams having improved foam dimensional stability.Type: GrantFiled: April 23, 2008Date of Patent: November 22, 2011Assignee: Momentive Performance Materials Inc.Inventors: Bright Dai, Lijun Feng, Paul Austin
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Patent number: 7838566Abstract: The invention relates to a process for the preparation of polyurethane cold cure foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of from about 4800 to 6500 g/mol and at least 70% of primary hydroxyl groups and optionally contain fillers, and polyfunctional isocyanates, amine activators, crosslinking agents, tin catalysts, blowing agents and stabilizers, wherein the stabilizers used are compounds of the general formula (1) the proportion of siloxanes with N>9 being higher than 10% by weight and that with N>12 being equal to or higher than 5% by weight.Type: GrantFiled: October 17, 2006Date of Patent: November 23, 2010Assignee: Evonik Goldschmidt GmbHInventors: Martin Glos, Harald Modro, Mladen Vidakovic
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Publication number: 20100240783Abstract: A method is provided for preparing polyurethane foams, which comprises contacting at least one organic isocyanate compound, at least one polyol, at least one blowing agent, and a tertiary amine catalyst composition. The catalyst composition has the general formula wherein R1, R2, and Y are, independently, an alkyl group having from one to three carbon atoms or —CH2CH2OH; Z is —CH2CH2OH; and n is an integer from 3 to 7, inclusive. Also provided is a method for catalyzing the reaction between at least one isocyanate compound and at least one active hydrogen-containing compound, such as a polyol and/or a blowing agent.Type: ApplicationFiled: May 27, 2010Publication date: September 23, 2010Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Juan Jesus Burdeniuc, Douglas P. Freyberger
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Patent number: 7718102Abstract: Foam for making pads and belts with controlled, reproducible microcellular structure and method of making such foam in a fast and efficient manner. Under constant pressure and temperature, a prepolymer is mixed with the nucleation surfactant in a tank in the presence of a frothing agent metered into the tank by way of a dip tube or sparge. The nitrogen gas is sheared into small bubbles and is drawn off from the headspace of the tank creating a continuous flow of nitrogen. The pressure of the tank may vary from any absolute pressure down to near complete vacuum, thereby all but eliminating the pressure requirement. The froth of the present invention has a more consistent cell structure and increased cell count.Type: GrantFiled: October 7, 2002Date of Patent: May 18, 2010Assignee: Praxair S.T. Technology, Inc.Inventors: Brian Lombardo, Jeffrey P. Otto
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Patent number: 7705062Abstract: A molecularly imprinted material made from polymerizing a monomer having the structural formula (OR)3Si—B-A-B—Si(OR)3. A is a divalent organic group, B is a saturated or unsaturated divalent hydrocarbon group or a covalent bond, and R is an independently selected saturated or unsaturated monovalent hydrocarbon group. A preconcentrator having: a container comprising in inlet and an outlet and the above material within the container. The inlet is capable of allowing a fluid to enter the container. The outlet is capable of being coupled to a sensor and of allowing the fluid to exit the container.Type: GrantFiled: January 31, 2006Date of Patent: April 27, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Michael Markowitz, Mazyar Zeinali, Scott Trammell, Paul Charles
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Patent number: 7674838Abstract: A two-part curable foaming composition comprising: (A) A first part comprising: (i) an alkoxysilyl capped prepolymer; and (ii) a polyhydrogen siloxane; (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; and (B) A second part comprising: (i) a nitrogen-containing compound having an active hydrogen; (ii) water; and (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; provided that at least one of the parts contain a catalyst and wherein after mixing together the first and second parts a cured elastomeric foam is formed.Type: GrantFiled: March 24, 2003Date of Patent: March 9, 2010Assignee: Henkel CorporationInventors: Thomas Fay-Oy Lim, James E. Lionberger, Steven T. Nakos
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Patent number: 7671103Abstract: The invention relates to the use of compounds of the general formula (VII) as stabilizers in the preparation of polyurethane foams.Type: GrantFiled: January 7, 2005Date of Patent: March 2, 2010Assignee: Goldschmidt AGInventors: Christian Eilbracht, Manfred Klincke, Isabella Ulrich-Brehm
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Publication number: 20090326087Abstract: The presently disclosed embodiments are directed to a method for treating microcapsules for use in an improved imaging member, namely, in the overcoat layer. The overcoat layer is used for an imaging member having a substrate, a charge transport layer, and an overcoat positioned on the charge transport layer, and a method for making the overcoat layer using the treated microcapsules is provided.Type: ApplicationFiled: June 27, 2008Publication date: December 31, 2009Applicant: XEROX CORPORATIONInventors: Kathy De Jong, Yvan Gagnon, Johann Junginger, Vladislav Skorokhod, Darren Kazmaier, Naveen Chopra
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Publication number: 20090270520Abstract: To produce a flexible polyurethane foam molded product having good air flow and cushioning characteristic and having cell roughening at the skin portion suppressed by using a raw material derived from a natural fat/oil. A release agent (X) containing a first polysiloxane compound (S1) having a number average molecular weight of at least 1,200 and at most 40,000, in which an organic group having an alkylene oxide chain is bonded to some of silicon atoms constituting the polysiloxane chain, is adhered to the inner surface of a mold, and in the mold, a reactive mixture (Y) containing a polyol (A) containing a polyol (A1) derived from a vegetable fat/oil, a polyisocyanate compound (B) and a silicone foam stabilizer (S) which is a second polysiloxane compound (S2) having a number average molecular weight of at least 150 and less than 1,200 is subjected to mold-foaming.Type: ApplicationFiled: June 18, 2009Publication date: October 29, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Naohiro KUMAGAI
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Publication number: 20090099274Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.Type: ApplicationFiled: September 30, 2008Publication date: April 16, 2009Inventors: MICHAEL VAN DER PUY, David J. Williams, Haridasan K. Nair, David Nalewajek
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Publication number: 20090088488Abstract: The invention relates to the use of a composition comprising at least one compound of the general formula (I) where R1 are identical or different, straight-chain or branched, aliphatic or aromatic, optionally halogenated, optionally unsaturated hydrocarbon radicals having 1 to 8 carbon atoms, k=0 to 10, R2 is a group of the formula A-B-D-Q, where A is an oxygen atom, a CH2 group or a CH?CH group, B is a CH2 group or a divalent radical selected from linear or branched, saturated, mono- or polyunsaturated alkyloxy, aryloxy, alkylaryloxy or arylalkyloxy groups having 2 to 20 carbon atoms or a group of the formula —CH2—O—(CH2)4—O—, D is a group of the general formula (II) (C2H4O)n(C3H6O)o(C12H24O)p(C8H8O)q(C4H8O)r—??(II) where n, o, p, q and r are mutually independent integers from 0 to 50, where the sum of the indices n+o+p+q+r is greater than or equal to 3 and the general formula II represents a statistical oligomer or a block oligomer, and Q is a radical selected from hydrogen, linear or branchedType: ApplicationFiled: September 24, 2008Publication date: April 2, 2009Inventors: Arndt Bruckner, Martin Glos
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Publication number: 20090043001Abstract: The invention relates to a process for the preparation of branched siloxanes containing R—SiO3/2 units, where R=organic radical, wherein straight-chain polysiloxanes containing silane hydrogen in the polymer chain are reacted in the presence of ammonium or metal carboxylates as a catalyst in the absence of hydroxy-functional organic compounds, and to siloxanes thus prepared and the use thereof in the preparation of polyurethane foams and antifoam formulations.Type: ApplicationFiled: August 7, 2008Publication date: February 12, 2009Inventors: Arndt BRUCKNER, Carsten Schiller, Christian Mund
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Patent number: 7482391Abstract: Room-temperature vulcanized (RTV) foaming compositions are disclosed. The compositions include at least one enoxysilyl functional group and/or at least one alkoxysilyl functional group, at least one amine catalyst, and at least one silicon hydride functional group. Also disclosed are methods of preparing such compositions and methods of using such compositions, methods for making a gasket, and articles of manufacture.Type: GrantFiled: May 9, 2005Date of Patent: January 27, 2009Assignee: Henkel CorporationInventors: Robert Cross, Lester D. Bennington, Bahram Issari, John Kerr
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Patent number: 7393879Abstract: A method for producing a novel silicone foam by reaction of a polyisocyanate with a silicone oligomer having a plurality of functional end groups with active hydrogens, optionally in the presence of fire-retardants, under foam forming conditions which creates a new silicone foam for use in items such as residential upholstered furniture industry, seat cushions and bedding etc., and specifically for use in applications that require, high resilience and fire-retardant properties such as aircraft and surface transportation seat cushioning, military and shipboard mattresses etc.Type: GrantFiled: June 6, 2002Date of Patent: July 1, 2008Assignee: Chestnut Ridge Foam, Inc.Inventors: Jiri E. Kresta, David Munoz Rojas, Ramon Moliner, Chandrasiri Jayakody, Dan Myers
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Publication number: 20080146688Abstract: The present invention relates to aqueous cold-cure flexible foam stabilizer formulations for use in the production of highly elastic cold-cure polyurethane foams or for use in the production of cold-cure flexible foam activator blends for highly elastic cold-cure polyurethane foams, wherein the aqueous cold-cure flexible foam stabilizer formulation comprises the following components a) from ?0.1 to ?80% by weight of at least one water-insoluble polysiloxane compound having a molecular weight of from ?300 g/mol to ?10 000 g/mol, b) ?2% by weight of water, c) ?0.1% by weight of surfactant, d) from ?0 to 10% by weight of additives selected from the group consisting of thickeners, antifreezes, organic solvents and biocides, e) ?0% by weight of water-soluble siloxane(s), with the proportion by weight of the abovementioned components being selected so that the sum of the proportions by weight of the components is not more than 100% by weight, based on the aqueous cold-cure flexible foam stabilizer formulation.Type: ApplicationFiled: December 15, 2006Publication date: June 19, 2008Applicant: Goldschmidt GmbHInventors: Martin Glos, William Bunting, Harald Modro, Mladen Vidakovic
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Patent number: 7378454Abstract: A polyurethane composition containing solid beads dispersed therein, is formed of a microcellular polyurethane foam, and the composition has a storage modulus of elasticity at 40° C. of 270 MPa or more as measured by means of a dynamic elasticity measuring device. Another polyurethane composition of this invention contains solid beads dispersed therein, that are capable of swelling with or are soluble in an aqueous medium. The former composition has excellent flattening capability, and the latter composition can provide a polished surface which combines good flatness and good uniformity and can also reduce scratches on the surface.Type: GrantFiled: April 4, 2002Date of Patent: May 27, 2008Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Takashi Masui, Masahiko Nakamori, Takatoshi Yamada, Koichi Ono, Kazuyuki Ogawa, Atsushi Kazuno, Hiroshi Seyanagi
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Publication number: 20070293594Abstract: The present invention provides a viscoelastic polyurethane foam and a process for the manufacture of such foam. The foam-forming composition of the present invention utilizes a cell opener that inhibits or reduces foam shrinkage that is detrimental to viscoelastic polyurethane foam properties.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Ladislau Heisler, Gregory A. Pickrell, Lee F. Lawler, Jolene C. Graham
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Patent number: 7309722Abstract: The present invention provides a composition for film formation which can form a porous film that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that is easily thinned; a porous film and a method for forming the same, and a high-performing and highly reliable semiconductor device which contains the porous film inside. More specifically, the composition for forming a porous film comprises a solution containing an amorphous polymer which is obtained by hydrolyzing and condensing at least one silane compound expressed by the general formula (R1)nSi(OR2)4?n, and a zeolite sol which is formed by using a quaternary ammonium hydroxide. The method for forming a porous film comprises a coating step for coating the composition for forming a porous film; a subsequent drying step; and a porousness forming step.Type: GrantFiled: November 7, 2003Date of Patent: December 18, 2007Assignees: Shin-Etsu Chemical Co. Ltd., Matsushita Electric Co., LtdInventors: Tsutomu Ogihara, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
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Patent number: 7285578Abstract: A water-in-oil emulsion composition for forming a silicone elastomer porous material contains a liquid silicone rubber material which forms a silicone elastomer upon curing, a silicone oil material which has a surface activation function, and water.Type: GrantFiled: November 12, 2004Date of Patent: October 23, 2007Assignee: Nitto Kogyo Co., Ltd.Inventors: Naka Hirayama, Atsushi Ikeda
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Patent number: 7268169Abstract: A substantially closed-cell silicone elastomer porous body includes cells with diameters of 50 ?m or less, which occupy 50% or more of all the cells, and has a closed cell rate of 60% or more.Type: GrantFiled: November 12, 2004Date of Patent: September 11, 2007Assignee: Nitto Kogyo Co., Ltd.Inventors: Naka Hirayma, Atsushi Ikeda
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Patent number: 7098255Abstract: A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active hydrogen group, characterized by comprising adding a nonionic silicone surfactant containing no hydroxyl group to at least one of the first ingredient and the second ingredient in an amount of 0.1 to 5 wt %, excluding 5 wt %, based on the total amount of the first ingredient and the second ingredient, subsequently agitating the surfactant containing ingredient together with an unreactive gas, which has no reactivity to isocyanate group or active hydrogen group, to disperse the unreactive gas as fine bubbles to prepare a bubble dispersion and then mixing the bubble dispersion with the remaining ingredient to cure the resultant mixture and forming finely cellular structure into the resultant polyurethane foam by the fine bubbles of the bubble dispersion.Type: GrantFiled: June 30, 2004Date of Patent: August 29, 2006Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Hiroshi Seyanagi, Kaoru Inoue, Kazuyuki Ogawa, Takashi Masui, Koichi Ono
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Patent number: 7066724Abstract: An apparatus is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer mixes the reactants, and a nucleating gas is supplied to the mixed reactants in the static mixer to form a liquid reactant mixture with entrained gas. The reactant mixture is injected into the tire and wheel assembly where the mixture reacts and foams replacing the air in the tire with a flexible, lightweight semi-open cell foam-fill. The foam-filled tire and wheel assembly is then allowed to cure.Type: GrantFiled: October 16, 2003Date of Patent: June 27, 2006Assignee: Urethane International LLCInventors: John Danules, Steve Anderson, Van Doesburg
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Patent number: 7026365Abstract: Nano-sized particles such as nano-clays can be mixed with polymers through either melt compounding or in-situ polymerization. By modifying the particle surface with various surfactants and controlling processing conditions, we are able to achieve either intercalated (partial dispersion) or exfoliated (full dispersion) nano-clay distribution in polymers with the clay content up to 35% by weight. When a blowing agent is injected into the nanocomposite in an extruder (a continuous mixer) or a batch mixer, polymeric foam can be produced. Supercritical carbon dioxide, an environmentally friendly, low-cost, non-flammable, chemically benign gas is used as the blowing agent. This process forms a microcellular foam with very high cell density (>109 cells/cc) and small cell size (<5 microns) can be achieved by controlling the CO2 content, melt and die temperature, and pressure drop rate.Type: GrantFiled: May 20, 2004Date of Patent: April 11, 2006Assignee: The Ohio State University Research FoundationInventors: L. James Lee, Kurt W. Koelling, David L. Tomasko, Xiangmin Han, Changchun Zeng
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Patent number: 6890966Abstract: In a process for the production of a lightweight cold urethane wherein raw materials are injected into a mold in one shot, diethanolamine is added in an amount of 0.1 to 2.0 parts by weight per 100 parts by weight of the polyol. When principal raw materials including a polyol and an isocyanate, and an auxiliary ingredient mixture prepared by previously mixing auxiliary ingredients other than the polyol and the isocyanate, are injected into a mold from separate storage vessels, a water-soluble silicone foam stabilizer is added to the auxiliary ingredient mixture.Type: GrantFiled: May 10, 2002Date of Patent: May 10, 2005Assignee: Suzuki Motor CorporationInventors: Masahiko Ando, Eiji Matsumoto
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Patent number: 6841586Abstract: An ester polyurethane foam is prepared by reacting a mixture of one or more polyester polyols with one or more isocyanates and one or more silicone surfactants in the presence of a blowing agent, such as water, and other additives, such as catalysts. The cured foam is chemically treated in a caustic solution and is then felted (compressed under heat and pressure) to form a hydrophilic ester polyurethane foam having a water absorption rate of at least 30 pounds of water per square foot per minute (1.44 kPa/min). The foam also has greater water holding capacity and wet strength than cellulose.Type: GrantFiled: December 23, 2003Date of Patent: January 11, 2005Assignee: Foamex, L.P.Inventors: Sharon A. Free, Charles V. Rose
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Patent number: 6841584Abstract: Disclosed are compositions of short fiber reinforced phenolic foams, methods of making and using the same. The disclosed fiber-reinforced phenolic foams have a seven-fold increase in peel resistance over the unreinforced counterpart foam. The phenolic foam has enhanced fracture toughness without sacrificing the critical fire retardant properties.Type: GrantFiled: March 18, 2003Date of Patent: January 11, 2005Assignee: University of Southern CaliforniaInventors: Steven R. Nutt, Hongbin Shen
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Patent number: 6818674Abstract: There are disclosed an elastic member which comprises (A) polyurethane foam obtained by agitationally mixing a foaming agent, a foam stabiizer and a urethane prepolymer synthesized from a polyol and a polyisocyanate in the presence of a modified silicone, or (B) polyurethane foam obtained by agitationally mixing a polyol, a polyisocyanate, a modified silicone oil bearing a functional group reactive with a polyisocyanate, a foaming agent and a foam stabiizer comprising a polyether modified silicone containing 50 to 100% by weight of a polyoxyethylene unit in the polyether moiety; image formation equipment equipped with the above elastic member; and a toner supply roller which is composed of a foamed elastic member mounted on a developing apparatus and which has a compression spring constant in the range of 0.25 to 5.0 N/mm and a surface friction resistance in the range of 0.4 to 1.2 N.Type: GrantFiled: November 6, 2001Date of Patent: November 16, 2004Assignee: Bridgestone CorporationInventors: Junji Sakata, Hirotaka Yamazaki
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Patent number: 6787580Abstract: Prepare a multimodal thermoplastic polymer foam having a distribution of large and small cells in a substantial absence of water by using a blowing agent stabilizer. Multimodal foams of the present invention have blowing agent stabilizer predominantly located proximate to large cells. The resulting multimodal foams have particular utility as thermal insulating materials.Type: GrantFiled: September 28, 2001Date of Patent: September 7, 2004Assignee: Dow Global Technologies Inc.Inventors: Yohannes Chonde, Daniel Imeokparia, John B. Horstman, Robert A. Kirchhoff, Kyung W. Suh
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Patent number: 6777455Abstract: A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active hydrogen group, characterized by comprising adding a nonionic silicone surfactant containing no hydroxyl group to at least one of the first ingredient and the second ingredient in an amount of 0.1 to 5 wt %, excluding 5 wt %, based on the total amount of the first ingredient and the second ingredient, subsequently agitating the surfactant containing ingredient together with an unreactive gas, which has no reactivity to isocyanate group or active hydrogen group, to disperse the unreactive gas as fine bubbles to prepare a bubble dispersion and then mixing the bubble dispersion with the remaining ingredient to cure the resultant mixture and forming finely cellular structure into the resultant polyurethane foam by the fine bubbles of the bubble dispersion.Type: GrantFiled: April 25, 2002Date of Patent: August 17, 2004Assignees: Toyo Tire & Rubber Co., Ltd., Toyo Boseki Kabushiki KaishaInventors: Hiroshi Seyanagi, Kaoru Inoue, Kazuyuki Ogawa, Takashi Masui, Koichi Ono
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Publication number: 20040152796Abstract: A process for preparing a polyurethane foam is provided which comprises reacting a polyisocyanate and an active hydrogen-containing component, e.g.Type: ApplicationFiled: January 31, 2003Publication date: August 5, 2004Applicant: CROMPTON CORPORATIONInventors: Louis Muller, Hassan El Ghobary, Fabrice Ponthet
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Patent number: 6759446Abstract: Nano-sized particles such as nano-clays can be mixed with polymers through either melt compounding or in-situ polymerization. By modifying the particle surface with various surfactants and controlling processing conditions, we are able to achieve either intercalated (partial dispersion) or exfoliated (full dispersion) nano-clay distribution in polymers with the clay content up to 35% by weight. When a blowing agent is injected into the nanocomposite in an extruder (a continuous mixer) or a batch mixer, polymeric foam can be produced. Supercritical carbon dioxide, an environmentally friendly, low-cost, non-flammable, chemically benign gas is used as the blowing agent. This process forms a microcellular foam with very high cell density (>109 cells/cc) and small cell size (<5 microns) can be achieved by controlling the CO2 content, melt and die temperature, and pressure drop rate.Type: GrantFiled: May 2, 2002Date of Patent: July 6, 2004Assignee: The Ohio State University Research FoundationInventors: L. James Lee, Kurt W. Koelling, David L. Tomasko, Xiangmin Han, Changchun Zeng
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Patent number: 6756416Abstract: An ester polyurethane foam is prepared by reacting a mixture of one or more polyester polyols with one or more isocyanates and one or more silicone surfactants in the presence of a blowing agent, such as water, and other additives, such as catalysts. The cured foam is chemically treated in a caustic solution to form a hydrophilic ester polyurethane foam having a water absorption rate of at least 20 pounds of water per square foot per minute, preferably at least 25 pounds of water per square foot per minute. The foam also has greater water holding capacity and wet strength than cellulose.Type: GrantFiled: February 12, 2002Date of Patent: June 29, 2004Assignee: Foamex L.P.Inventors: Sharon A. Free, Vincenzo A. Bonaddio, Andrew M. Thompson, Joseph W. Lovette
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Patent number: 6660780Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: November 27, 2002Date of Patent: December 9, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6653361Abstract: A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this component is less than about 500 cP at room temperature, a catalyst component, a surfactant, and a flame retarding composition. The components may be low VOC. A preferred flame retarding composition comprises an antimony-based compound, a halogenated, active hydrogen-containing component reactive with the polyisocyanate component, and a halogenated flame-retarding agent. Such polyurethanes are useful as gaskets, seals, padding, in automotive applications, and the like.Type: GrantFiled: April 25, 2002Date of Patent: November 25, 2003Assignee: World Properties, Inc.Inventors: Amy L. Gilman, Scott S. Simpson, Petr Svoboda
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Patent number: 6638986Abstract: Reticulated flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and further assistants and additives (f), by a process in which the polyetherol mixture (b) comprises b1) at least one difunctional or polyfunctional polyetherol having an OH number of from 20 to 150 mg KOH/g, based on propylene oxide and/or butylene oxide and ethylene oxide and having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, (b1.Type: GrantFiled: January 15, 2002Date of Patent: October 28, 2003Assignee: BASF AktiengesellschaftInventors: Peter Falke, Heinz-Dieter Lutter, Michael J. Pcolinski
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Patent number: 6583191Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: September 19, 2001Date of Patent: June 24, 2003Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6541530Abstract: A urethane-modified polyisocyanurate foam obtained by reacting (A) a polyisocyanate compound component, (B) a polyol component, containing a modified phenolic resin obtained by adding 20 to 100 parts by weight of a polyhydric alcohol or its alkylene oxide adduct to 100 parts by weight of a benzylic ether type phenolic resin and heating under a reduced pressure, in an amount of at least 3 wt % to the total resin component, (C) water and (D) a foam stabilizer comprising a mixture of at least 2 silicone type surfactants having different surface tensions wherein a surfactant having a higher surface tension has a surface tension of higher than 22 dyne/cm and a surfactant having a lower surface tension has a surface tension of at most 22 dyne/cm, in the presence of (E) a urethane-forming catalyst and/or a trimerization catalyst.Type: GrantFiled: November 27, 2001Date of Patent: April 1, 2003Assignee: Hodogaya Chemical Co., Ltd.Inventors: Tsuyoshi Sato, Tsutomu Nakamura
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Patent number: 6518324Abstract: Polymer foams containing nanoclay are provided, the foams having improved properties such as thermal insulation values.Type: GrantFiled: November 28, 2000Date of Patent: February 11, 2003Assignee: Atofina Chemicals, Inc.Inventors: Jiri E. Kresta, Jinhuang Wu, Richard M. Crooker
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Patent number: 6506810Abstract: The invention relates to the use of mixtures of organofunctionally modified polysiloxanes with branched alcohols in the production of flexible polyurethane foams.Type: GrantFiled: November 26, 2001Date of Patent: January 14, 2003Assignee: Goldschmidt AGInventors: Rob Borgogelli, Oliver Eyrisch
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Patent number: 6458859Abstract: By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an organic peroxide and/or an organohydrogenpolysiloxane/platinum group catalyst. The composition cures into silicone rubber having a stabilized resistivity in the semiconductive region, especially in the range of 1×103 to 1×1012 &OHgr;-cm, even under high voltages. The composition is thus suitable as a semiconductive roll material for use as charging rolls, transfer rolls and developing rolls.Type: GrantFiled: December 8, 2000Date of Patent: October 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Osamu Hayashida, Tsutomu Nakamura
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Publication number: 20020132867Abstract: The invention relates to the use of mixtures of organofunctionally modified polysiloxanes with branched alcohols in the production of flexible polyurethane foams.Type: ApplicationFiled: November 26, 2001Publication date: September 19, 2002Inventors: Rob Borgogelli, Oliver Eyrisch
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Patent number: 6451866Abstract: Disclosed is a spongy rubber body or, in particular, spongy silicone rubber body useful for forming the semiconductive rubber layer of a rubber roller in photocopying machines and the like as well as for use as a spongy rubber puff in cosmetic makeup. Characteristically, the inventive spongy rubber is compounded with, besides ordinary ingredients in spongy silicone rubbers, a specified amount of globular particles of, preferably, a silicone rubber having a specified average particle diameter. Compounding of globular particles in a spongy rubber has an effect to give a uniformized and decreased average cell diameter of the spongy rubber and also to greatly decrease the permanent compression set of the spongy rubber as required in the rubber layer of a spongy rubber roller. Cosmetic puffs can be imparted with improved touch feeling to the human skin and improved evenness in spreading of a cosmetic composition over the skin.Type: GrantFiled: July 31, 2000Date of Patent: September 17, 2002Assignee: Shin-Etsu Polymer Co., Ltd.Inventors: Takashi Kanai, Yasuyuki Sakyo
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Patent number: 6432335Abstract: A flexible cellular material can be made by extruding a composition containing a polyurethane prepolymer, where the prepolymer has end groups selected from the group consisting of isocyanate end groups and trialkoxysilyl end groups, and the prepolymer is self-crosslinkable with moisture. The flexible cellular material has an expanded or foamed polymer matrix.Type: GrantFiled: January 19, 1999Date of Patent: August 13, 2002Assignee: Norton Performance PlasticsInventors: Michel Ladang, Marc Mertens, Dominique Petit
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Publication number: 20020065334Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: ApplicationFiled: September 19, 2001Publication date: May 30, 2002Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Publication number: 20010051667Abstract: By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an organic peroxide and/or an organohydrogenpolysiloxane/platinum group catalyst. The composition cures into silicone rubber having a stabilized resistivity in the semiconductive region, especially in the range of 1×103 to 1×1012 &OHgr;-cm, even under high voltages. The composition is thus suitable as a semiconductive roll material for use as charging rolls, transfer rolls and developing rolls.Type: ApplicationFiled: December 8, 2000Publication date: December 13, 2001Inventors: Osamu Hayashida, Tsutomu Nakamura
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Patent number: 6310110Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: July 30, 1999Date of Patent: October 30, 2001Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6303669Abstract: The present invention provides a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration and a speaker edge having an excellent waterproofness comprising such a flexible polyurethane foam. As a polyol, a polyol component obtained by mixing a polyester polyol having an excellent compatibility with polyether polyol such as adipate of a long-chain alkylene glycol having at least 5 carbon atoms with a foaming agent, a catalyst, a foam stabilizer, etc. is reacted with a polyisocyanate to obtain a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration. Further, the incorporation of a specific aromatic secondary amine compound, a monofunctionally-terminated compound and an ultraviolet absorbent in the foam composition makes it possible to obtain a flexible foam having better resistance to ozone deterioration and weather resistance.Type: GrantFiled: April 30, 1997Date of Patent: October 16, 2001Assignee: Inoac CorporationInventors: Naoshi Fujita, Minoru Suzuki, Kenichi Katoh, Satoshi Kondo
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Publication number: 20010004646Abstract: The invention relates to the use of silicone-polyether copolymers of the formula I 1Type: ApplicationFiled: November 29, 2000Publication date: June 21, 2001Inventors: Georg Burkhart, Georg Feldmann-Krane, Ingo Fleute-Schlachter, Andreas Weier
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Patent number: RE37711Abstract: The use of enol ether capped polyether-polysiloxane copolymers as surfactants in polyurethane foam applications is taught herein. These enol ether capped surfactants exhibit a high capping efficiency and yield good performance. Moreover, they are stable in water/amine premixes.Type: GrantFiled: August 2, 1999Date of Patent: May 21, 2002Assignee: CK Witco Corp.Inventor: Glenn A. Miller