Treating Or Preparing A Nonaqueous Solution Of A Solid Polymer Or Specified Intermediate Condensation Product Patents (Class 524/924)
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Patent number: 7837892Abstract: Rubber compound containing at least one nanoscale, magnetic filler and at least one non-magnetic filler. Vulcanizable mixture containing the rubber compound and at least one crosslinking agent and/or vulcanization accelerator. Molding obtainable from the vulcanizable mixture by heat treatment or action of an electrical, magnetic or electromagnetic alternating field.Type: GrantFiled: August 20, 2005Date of Patent: November 23, 2010Assignee: Evonik Degussa GmbHInventors: Markus Pridoehl, Guido Zimmermann, Joachim Froehlich, Achim Gruber, Gregor Grun, Thomas Ruehle, Dirk W. Schubert
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Patent number: 5998542Abstract: A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an M.sup.H Q resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique particle size distribution.Type: GrantFiled: December 12, 1997Date of Patent: December 7, 1999Assignee: General Electric CompanyInventors: Adam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
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Patent number: 5929162Abstract: A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an M.sup.H Q resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique particle size distribution.Type: GrantFiled: December 12, 1997Date of Patent: July 27, 1999Assignee: General Electric CompanyInventors: Adam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
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Patent number: 5929164Abstract: A method of thickening solvents involves reacting (A) an .tbd.Si--H containing polysiloxane with (B) an alpha, omegadiene; conducting the reaction in the presence of a platinum catalyst and (C) a solvent; continuing the reaction until a gel is formed by crosslinking and addition of .tbd.Si--H across double bonds in the alpha, omega-diene; adding additional solvent and a post cure quenching agent to the gel; and subjecting the solvent, the post cure quenching agent, and the gel to shear force until a paste is formed.Type: GrantFiled: November 5, 1997Date of Patent: July 27, 1999Assignee: Dow Corning CorporationInventor: Shizhong Zhang
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Patent number: 5496868Abstract: A sealing material is prepared by furnishing a liquid composition comprising a polydiene or polyolefin polyol, a polyisocyanate compound, a foam stabilizer, and a blowing agent, uniformly dispersing an inert gas in the liquid composition by mechanical agitation to form a bubbled composition, shaping the bubbled composition into a sheet shape, and heat curing the bubbled shape at a temperature below the decomposition temperature of the blowing agent. The sealing material is lightweight and has a high blowing magnification. On use, the sealing material is disposed in a cavity of an automotive pillar or similar member and heated for foaming to fill the cavity with the foamed product.Type: GrantFiled: May 3, 1994Date of Patent: March 5, 1996Assignee: Bridgestone CorporationInventors: Hajime Hasegawa, Kazuyoshi Usami
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Patent number: 5236980Abstract: A novel composition is a solution in an organic solvent of an electron donor-acceptor complex of a conjugated aromatic polyazomethine compound and a Lewis acid compound. This composition is coated on a transparent support and the solvent is evaporated to produce an optical device. Decomposition of the polyazomethine-Lewis acid complex coated on the substrate produces a new optical device comprising a film of the polyazomethine compound on the substrate. Compositions of the present invention can also be used for the preparation of optical wave guides, optical switching elements, fibers, and dielectric materials.Type: GrantFiled: June 26, 1992Date of Patent: August 17, 1993Assignee: The University of RochesterInventors: Samson A. Jenekhe, Chen-Jen Yang
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Patent number: 5237024Abstract: A process which comprises reacting maleic anhydride and a primary or secondary C.sub.1 -C.sub.18 alcohol to form a maleic half ester, and then polymerizing the half ester and monoalkenyl aromatic monomer in ester solvent in the presence of a catalyst to form a solution of monoalkenyl aromatic monomer-maleic half ester copolymer having a weight average molecular weight of at least 110,000 Daltons. After formation of the copolymer, the reaction solution is neutralized to form a mixture of an alkaline salt solution of the copolymer and solvent and then the solvent is removed from the mixture.Type: GrantFiled: June 11, 1992Date of Patent: August 17, 1993Assignee: Monsanto CompanyInventors: David E. Allberry, Kang I. Lee
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Patent number: 5114610Abstract: Solubilizing macromolecules including rigid chain and ladder polymers with Lewis acids dissolved in aprotic organic solvents. The resulting isotropic or anisotropic solutions are useful for producing films, coatings, fibers, and other forms of the macromolecules.Type: GrantFiled: March 12, 1990Date of Patent: May 19, 1992Assignee: Honeywell Inc.Inventors: Samson A. Jenekhe, James R. Peterson
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Patent number: 4942189Abstract: The present invention relates to a process for the viscosification of an aqueous liquid which includes the steps of forming a solvent system of an organic liquid or oil and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system, a viscosity of the solvent system being less than about 1,000 cps; forming an interpolymer complex of neutralized sulfonated polymer (water insoluble) and copolymer of styrene/vinylpyridine in the solvent system to form a solution, a concentration of the water insoluble interpolymer complex polymer in the solution being about 0.01 to about 0.5 weight percent, a viscosity of the solution being less than about 200 cps; the admixing or contacting said solution with about 5 to about 500 volume percent water, the water being immiscible with the organic liquid and the polar cosolvent and interpolymer complex transferring from the organic liquid to the water phase, thereby causing the water phase to gel (i.e., thicken).Type: GrantFiled: July 31, 1989Date of Patent: July 17, 1990Assignee: Exxon Research and Engineering CompanyInventors: Dennis G. Peiffer, Robert D. Lundberg, Ilan Duvdevani
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Patent number: 4611028Abstract: Copolymers adapted for use as stabilizers in dispersions and stable dispersions, including crosslinked dispersions containing microgel particles, prepared therefrom. Stabilizer bears pendent ethylenic unsaturation capable of reacting with monomers employed in random copolymerization used to make the dispersion polymer. Stabilizer comprises a random copolymer segment of ethylenically unsaturated monomers, some of which are characterized in that homopolymers thereof would be substantially insoluble in the organic liquid used to form the stable dispersion and some of which are characterized in that homopolymers thereof would be substantially soluble in the organic liquid used to form the stable dispersion.Type: GrantFiled: December 21, 1984Date of Patent: September 9, 1986Assignee: Ford Motor CompanyInventors: Stephen C. Peng, John D. Nordstrom
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Patent number: 4497923Abstract: The present invention relates to a process for the viscosification of an organic liquid which comprises the steps of forming a first solution of an anionic polymer dissolved in the organic liquid; forming a second solution of a cationic polymer dissolved in the organic liquid; and mixing the first and the second solutions together to form an interpolymer complex of the anionic and cationic polymer in the organic liquid, wherein the organic liquid containing the interpolymer complex has improved viscosification properties. This solution possesses higher viscosity than the mean of the separate viscosities of the starting solutions at relatively low solids content. Moreover, these interpolymer complexes, in hydrocarbon solutions, can be formulated to exhibit shear thickening at increased shear rates. This property is useful in such technological applications as antimisting of the solvent.Type: GrantFiled: November 2, 1983Date of Patent: February 5, 1985Assignee: Exxon Research & Engineering Co.Inventors: Robert D. Lundberg, Dennis G. Peiffer, Ilan Duvdevani, Robert R. Phillips
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Patent number: 4414341Abstract: A continuous process for concentrating polymer solutions, particularly solutions of halogenated aromatic polyesters in methylene chloride, is provided. The polymer solutions, are first passed through a heating zone where they are heated to a temperature of not less than the temperature at which the solvent thereof evaporates. The heated solution is then passed through an orifice or a multiplicity of orifices (such as a spinneret) located in an evaporation chamber containing a saturated atmosphere of solvent vapor which is maintained within specifically defined temperature limits where flash evaporation of the solvent takes place in the absence of the formation of polymer gels or skins. The polymer solutions are concentrated to a final concentration higher than the initial polymer solution concentration.Type: GrantFiled: November 19, 1980Date of Patent: November 8, 1983Assignee: Celanese CorporationInventor: Albert G. Williams