Patents Assigned to Bayer Antwerpen
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Patent number: 7459195Abstract: The present invention relates to tufted goods comprising a greige good having fibers tufted into a primary backing, a precoat which is adhered to the back surface of the greige good, and a flexible film which is laminated to the back surface of the precoat. The flexible film is treated via corona-discharge prior to being laminated to the precoat. This invention also relates to a process for producing tufted goods. This process comprises treating a flexible film via corona-discharge, contacting the treated flexible film with the uncured or partially cured back surface of a precoated greige good, and curing the article. Optional embodiments of this invention include having a foam layer between the precoat and the flexible film, or having a foam layer on the back surface of the flexible film. An alternate embodiment of this invention comprises substituting a foam layer for the precoat.Type: GrantFiled: March 24, 2006Date of Patent: December 2, 2008Assignee: Bayer Antwerpen Comm.V.Inventors: Ulrich B. Holeschovsky, Harry Stefanou
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Patent number: 7223832Abstract: The present invention is directed to polyols prepared in the presence of double metal cyanide catalysts (“DMC”) which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at least one alkali metal salt; and, optionally, v) at least one functionalized polymer under conditions sufficient to form a catalyst; and adding a sufficient amount of the at least one alkali metal salt to the catalyst so formed in an amount such that the catalyst includes the at least one alkali metal salt in an amount of from about 0.4 to about 6 wt. % based on the total weight of the catalyst. The polyols produced by the process of the present invention have reduced levels of high molecular weight tail.Type: GrantFiled: November 19, 2003Date of Patent: May 29, 2007Assignees: Bayer Antwerpen, J.V., Bayer MaterialScience LLCInventors: Bi Le-Khac, Wei Wang
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Patent number: 7056407Abstract: The present invention relates to tufted goods comprising a greige good having fibers tufted into a primary backing, a precoat which is adhered to the back surface of the greige good, and a flexible film which is laminated to the back surface of the precoat. The flexible film is treated via corona-discharge prior to being laminated to the precoat. This invention also relates to a process for producing tufted goods. This process comprises treating a flexible film via corona-discharge, contacting the treated flexible film with the uncured or partially cured back surface of a precoated greige good, and curing the article. Optional embodiments of this invention include having a foam layer between the precoat and the flexible film, or having a foam layer on the back surface of the flexible film. An alternate embodiment of this invention comprises substituting a foam layer for the precoat.Type: GrantFiled: December 18, 2001Date of Patent: June 6, 2006Assignee: Bayer AntwerpenInventors: Ulrich Holeschovsky, Harry Stefanou
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Patent number: 7034103Abstract: The present invention provides process for producing polyols using a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II), M1x[M2(CN)6]yOH.L??(I) M1x[M2(CN)6]y.zM1(OH)q.L??(II) wherein M1 represents a metal selected from Zn+2, Fe+2, Ni+2, Mn+2, Co+2, Sn+2, Pb+2, Fe+3, Mo+4, Mo+6, Al+3, V+4, V+5, Sr+2, W+4, W+6, Cu+2 and Cr+3, M2 represents a metal selected from Fe+2, Fe+3, Co+2, Co+3, Cr+2, Cr+3, Mn+2, Mn+3, Ir+3, Ni+2, Rh+3, Ru+2, V+4 and V+5, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. The polyols of the present invention may find use in the preparation of polyurethanes.Type: GrantFiled: January 5, 2005Date of Patent: April 25, 2006Assignee: Bayer Antwerpen N.V.Inventor: George G. Combs
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Patent number: 6867162Abstract: The present invention is directed to double metal cyanide catalysts (“DMC”) which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at least one alkali metal salt; and, optionally, v) at least one functionalized polymer under conditions sufficient to form a catalyst; and adding a sufficient amount of the at least one alkali metal salt to the catalyst so formed in an amount such that the catalyst includes the at least one alkali metal salt in an amount of from about 0.4 to about 6 wt. % based on the total weight of the catalyst. The polyols produced in the presence of the catalysts of the present invention have reduced levels of high molecular weight tail.Type: GrantFiled: November 19, 2003Date of Patent: March 15, 2005Assignees: Bayer MaterialScience LLC, Bayer Antwerpen, J.V.Inventors: Bi Le-Khac, Wie Wang
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Patent number: 6855794Abstract: Polycarbonate substrates, the preparation of which is based on 1,1-bis-(4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, and their use for producing shaped articles with particularly high purity and extremely high surface brilliance and also the shaped articles which can be produced from the polycarbonate substrate are described.Type: GrantFiled: February 23, 2004Date of Patent: February 15, 2005Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Michael Bödiger, Steffen Kühling, Franky Bruynseels, Dirk van Meirvenne, René de Cleyn
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Patent number: 6855390Abstract: A process for the preparation of optical data carriers made of a particualr polycarbonate is disclosed. The polycarbonate is prepared by the phase boundary process that entails reacting at least one dihydroxydiarylalkane in the form of its alkali metal salts with phosgene in the heterogeneous phase in the presence of sodium hydroxide solution and an organic solvent. The process is characterized in that the feedstock have but low content of Fe, Cr, Ni, Zn, Ca, Mg, Al metals or homologues thereof, and in that the organic solvent is separated off, and in that the polycarbonate which is obtained is worked up. The resulting polycarbonate is particularly useful in producing optical data carriers.Type: GrantFiled: October 23, 2000Date of Patent: February 15, 2005Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen, N.V.Inventors: Wilfried Haese, Friedrich-Karl Bruder, Thomas Bieringer, Steffen Kühling, Franky Bruynseels, Dirk van Meirvenne, René de Cleyn
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Patent number: 6835798Abstract: A process for the preparation of polycarbonate by the phase boundary process is disclosed. The process entails reacting at least one dihydroxydiarylalkane in the form of its alkali metal salts with phosgene in the heterogeneous phase in the presence of sodium hydroxide solution and an organic solvent. The process is characterized in that the feedstock have but low content of Fe, Cr, Ni, Zn, Ca, Mg, Al metals or homologues thereof, and in that the organic solvent is separated off, and in that the polycarbonate which is obtained is worked up. The resulting polycarbonate is particularly useful in producing transparent shaped articles.Type: GrantFiled: August 5, 2002Date of Patent: December 28, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Michael Bödiger, Steffen Kühling, Franky Bruynseels, Dirk van Meirvenne, René de Cleyn
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Patent number: 6833182Abstract: A composition suitable for sizing of glass fibers is disclosed. The composition contains water dispersible, water-soluble or water emulsifiable resin selected from the group consisting of polyepoxide, polyester, polyvinyl acetate, polyacrylate and polyurethane, water, an organofunctional silane, and a nucleating agent. Optional components include emulsifiers, lubricants, wetting and anti-static agents. Glass fibers sized with the composition are suitable for preparing composites having improved mechanical properties.Type: GrantFiled: December 6, 1999Date of Patent: December 21, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Raymond Audenaert, Detlev Joachimi, Alexander Karbach, Stephan Kirchmeyer, Joachim Simon
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Patent number: 6815524Abstract: Polycarbonate substrates having low concentration of defects are disclosed. The substrates are suitable for producing molded articles characterized by low cloudiness.Type: GrantFiled: August 5, 2002Date of Patent: November 9, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Michael Bödiger, Steffen Kühling, Franky Bruynseels, Dirk van Meirvenne, Renë de Cleyn
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Patent number: 6797665Abstract: The invention relates to double-metal cyanide catalysts for preparing polyols by the polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, wherein the DMC catalysts are composed of: a) at least one double-metal cyanide compound; b) at least one organic complexing ligand; and, optionally, c) at least one functionalized polymer, wherein the organic complexing ligand is a mixture of a C3-C7 aliphatic alcohol and from about 2 to about 98 mole %, based on the total amount of organic complexing ligand, of a cyclic, aliphatic, cycloaliphatic or aromatic ketone. The DMC catalysts of the present invention have increased activity compared to known catalysts. Additionally, the DMC catalysts of the present invention can be used to prepare polyols with reduced high molecular weight components.Type: GrantFiled: May 10, 2002Date of Patent: September 28, 2004Assignee: Bayer AntwerpenInventor: Bi Le-Khac
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Patent number: 6720406Abstract: A process for producing polymer pellets is disclosed. The process that is particular suitable for making polycarbonate pellets entails extruding a polymer melt, cooling the extrudate by contacting it with a cooling fluid and pelletizing the solidified polymer. The process is characterized in that the cooling fluid has a solids particle content of at most 10 ppm.Type: GrantFiled: April 30, 2002Date of Patent: April 13, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Thomas Elsner, Jürgen Heuser, Christian Kords, Steffen Kühling, Paul Viroux
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Patent number: 6696542Abstract: Polycarbonate substrates, the preparation of which is based on 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexanone, and their use for producing shaped articles with particularly high purity and extremely high surface brilliance and also the shaped articles which can be produced from the polycarbonate substrate are described.Type: GrantFiled: August 5, 2002Date of Patent: February 24, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen, N.V.Inventors: Michael Bödiger, Steffen Kühling, Franky Bruynseels, Dirk van Meirvenne, René de Cleyn
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Patent number: 6696383Abstract: The present invention is directed to double metal cyanide catalysts (“DMC”) which can be used to prepare polyols. DMC catalysts of the present invention are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at least one alkaline metal salt; and, optionally, v) at least one functionalized polymer. The present invention is also directed to a process for preparing a polyol in the presence of a DMC catalyst prepared according to the process of the present invention. Surprisingly, DMC catalysts of the present invention, which are preferably prepared with at least one alkaline metal halide, have acceptable activity and can be used to catalyze oxyalkylation reactions. Additionally, DMC catalysts produced by the process of the present invention can be used to prepare polyols which have reduced levels of high weight tail.Type: GrantFiled: September 20, 2002Date of Patent: February 24, 2004Assignees: Bayer Polymers LLC, Bayer Antwerpen, NV.Inventors: Bi Le-Khac, Wei Wang
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Patent number: 6491846Abstract: This invention relates to a process for the in-situ production of a blend of a polyether monol and a polyether polyol. This process comprises introducing a monol (Si) and a double metal cyanide (DMC) catalyst into a reaction vessel, feeding an epoxide mixture into the vessel and allowing the epoxide to react with the initial starter and continuing to polymerize by feeding epoxide until the equivalent weight of the monol reaches the desired level, then continuously adding a polyfunctional starter (Sc) to the reaction vessel while continuing to feed an epoxide mixture, completing addition of the starter, and allowing the mixture to continue to polymerize until the resultant blend of polyether monol and polyether polyol has an average equivalent weight of from about 350 to about 750, and an average functionality of from about 2 to about 4. In-situ polymerized blends of a polyether monol and a polyether polyol are also part of the present invention.Type: GrantFiled: June 21, 2001Date of Patent: December 10, 2002Assignee: Bayer Antwerpen, N.V.Inventors: Jack R. Reese, II, Stanley L. Hager
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Patent number: 6320066Abstract: A water-soluble compound suitable for coating a variety of substrates is disclosed. The compound is prepared by reacting a diisocyanate with a diamino alkoxysilane, optionally also with a nonionic hydrophilic compound. Suitable substrates include oxides in solid form, glass, mineral and wood.Type: GrantFiled: April 4, 2001Date of Patent: November 20, 2001Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Raymond Audenaert, Joachim Simon, Detley Joachimi, Alexander Karbach
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Patent number: 6288167Abstract: The present invention is directed to blends of two grafted rubber substrates and a matrix polymer wherein one of the grafted rubber substrates uses a core/shell rubber such as a styrene/butyl acrylate rubber in order to obtain a lower contrast ratio in the blends and better colorability as well as good impact strength.Type: GrantFiled: May 26, 1999Date of Patent: September 11, 2001Assignee: Bayer Antwerpen S.A./N.V.Inventors: Chuan-Ju Chen, Fred Ming-sheng Peng
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Patent number: 6239221Abstract: A polymer composition comprising a blend of (a) a grafted olefin rubber, (b) an ungrafted olefin rubber, (c) a copolymeric matrix and an optional (d) a grafted acrylate rubber is disclosed. The composition which is characterized in having a desirable balance of impact strength and low gloss is useful for molding and extrusion of articles for certain outdoor applications.Type: GrantFiled: March 3, 1998Date of Patent: May 29, 2001Assignee: Bayer Antwerpen S.A./N.V.Inventor: Chuan-Ju Chen
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Patent number: 5905118Abstract: Disclosed herein are terpolymers of styrene, acrylonitrile and dimethyl styrene phosphonate and blends thereof with poly(styrene acrylonitrile) polymers and polymers and copolymers of methylmethacrylate.Type: GrantFiled: April 24, 1998Date of Patent: May 18, 1999Assignee: Bayer Antwerpen S.A./N.V.Inventor: Allen Robert Padwa
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Patent number: 5900454Abstract: Aqueous dispersions comprising emulsified polyolefins and metal salts of phosphoric acid esters which are useful for sizing glass fibers.Type: GrantFiled: June 21, 1996Date of Patent: May 4, 1999Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Stephan Kirchmeyer, Alexander Karbach, Raymond Audenaert