Patents by Inventor Wolfgang Grape
Wolfgang Grape has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7273945Abstract: The invention describes a process for preparing alkoxylated, phosphorus-containing compounds, using heterogeneous catalysts based on metal oxides of aluminum, so that the product can be worked up anhydrously.Type: GrantFiled: March 15, 2006Date of Patent: September 25, 2007Assignee: LANXESS Deutschland GmbHInventors: Thomas Weiss, Wolfgang Grape, Rainer Elbert, Jan- Gerd Hansel, Johannes Kaulen
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Publication number: 20060211877Abstract: The invention describes a process for preparing tri(chloropropyl) phosphate (TCPP) using heterogeneous catalysts based on metal oxides.Type: ApplicationFiled: March 15, 2006Publication date: September 21, 2006Inventors: Thomas Weiss, Wolfgang Grape, Rainer Elbert, Jan-Gerd Hansel, Johannes Kaulen
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Publication number: 20060211878Abstract: The invention describes a process for preparing alkoxylated, phosphorus-containing compounds, using heterogeneous catalysts based on metal oxides of aluminum, so that the product can be worked up anhydrously.Type: ApplicationFiled: March 15, 2006Publication date: September 21, 2006Inventors: Thomas Weib, Wolfgang Grape, Rainer Elbert, Jan- Gerd Hansel, Johannes Kaulen
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Publication number: 20020061365Abstract: The invention relates to aqueous emulsions, a process for the preparation and the use thereof.Type: ApplicationFiled: July 9, 1997Publication date: May 23, 2002Inventors: WOLFGANG GRAPE, RUDI STRACKE, FRANK ZILLMER, ARMAND DE MONTIGNY
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Patent number: 6177481Abstract: The present invention relates to mixtures comprising at least one polysiloxane defoamer, at least one emulsifier, at least one nonionic surfactant, at least one polyurethane thickener and water, to a process for the production thereof and to the use thereof.Type: GrantFiled: September 15, 1999Date of Patent: January 23, 2001Assignee: Bayer AktiengesellschaftInventors: Wolfgang Grape, J{umlaut over (u)}rgen Krott, Jan Mazanek, Karl-Heinz Kaesler
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Patent number: 4940743Abstract: A storage-stable aqueous emulsion of a low molecular weight, alkoxy-functional silicone resin by weight comprising approximately(a) 1-60% of a silicone resin having a viscosity of from 2 to 2000 mPa.s and of the formula ##EQU1## in which R.sup.1 is a monovalent hydrocarbon group having 1 to 14 carbon atoms,R.sup.2 is a monovalent hydrocarbon group having 1 to 18 carbon atoms,x is from 0.75 to 1.5, andy is from 0.2 to 2,(b) 0.1 to 10% of an emulsifying agent, and(c) 30 to 98.5% by weight of water, the emulsion having an alkaline pH, whereby the storage stability due to reduced hydrolysis is improved.Type: GrantFiled: March 22, 1985Date of Patent: July 10, 1990Assignee: Bayer AktiengesellschaftInventors: Wolfgang Grape, Ottfried Schlak, Armand de Montigny, Hermann Kober
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Patent number: 4831169Abstract: An organopolysiloxane of the formula ##STR1## in which x=0 to 500,y=5 to 500,z=5 to 500,R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 independently of one another, represent a saturated and/or unsaturated, optionally also branched alkyl radical having 1 to 4 C atoms, and/or an aryl radical having 6 to 9 C atoms, which may also be optionally alkyl-substituted,R.sub.7 represents an alkyl radical having 6 to 18 C atoms,and in which in each case at least 3% of the radicals bonded to Si are R.sub.7 and H. They are reactive with substrates and thus wash-resistant.Type: GrantFiled: August 18, 1987Date of Patent: May 16, 1989Assignee: Bayer AktiengesellschaftInventors: Wolfgang Grape, Ottfried Schlak, Rolf M. Braun
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Patent number: 4812515Abstract: Silicone rubbers in the form of crosslinked, particulate particles can be used as a grafting base for the preparation of thermoplastic moulding materials having good low-temperature impact strength and resistance to weathering-ageing, after they are provided with an intermediate shell of crosslinked acrylate rubber.Type: GrantFiled: September 16, 1987Date of Patent: March 14, 1989Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Christian Lindner, Wolfgang Grape, Horst Peters, Jochen Schoeps, Dieter Wittmann
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Patent number: 4806593Abstract: Particularly high-grade blends of thermoplastic polycarbonates, graft copolymers and, optionally, further thermoplastic resins, useful as moulding materials with good low-temperature impact strength and resistance to ageing and light, which yield mouldings with superior surfaces, are obtained from graft bases which are silicone rubbers containing sulphur in addition to groups containing carbon double bonds.Type: GrantFiled: September 16, 1987Date of Patent: February 21, 1989Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Christian Lindner, Wolfgang Grape, Horst Peters, Jochen Schoeps, Dieter Wittmann
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Patent number: 4748215Abstract: The invention relates to pulverulent diorganosiloxane polymers and a process for the preparation of such powders.Type: GrantFiled: September 22, 1986Date of Patent: May 31, 1988Assignee: Bayer AktiengesellschaftInventors: Christian Lindner, Wolfgang Grape, Hans-Jurgen Kress
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Patent number: 4702855Abstract: Electroviscous fluids are disclosed which are composed of aluminum silicates particles in an electrically non-conductive liquid and a suitable dispersing agent. The atomic ratio of Al/Si on the surface of the aluminum silicate lies within the range of 0.15 to 0.80.Type: GrantFiled: October 1, 1986Date of Patent: October 27, 1987Assignee: Bayer AktiengesellschaftInventors: John Goossens, Gunter Oppermann, Wolfgang Grape
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Patent number: 4652386Abstract: Organopolysiloxanes of the formula ##STR1## in which R is an alkyl radical having 6 to 18 C atoms,R' is an alkyl radical having 1 to 7 C atoms or the phenyl radical,a and b each independently is an integer from 1 to 500, the ratio of b:a being at least 2, are miscible with mineral oil and synthetic lubricating oils and have a pour point below -15.degree. C.Type: GrantFiled: September 13, 1985Date of Patent: March 24, 1987Assignee: Bayer AktiengesellschaftInventors: Heinrich Alberts, Siegfried Kussi, Wolfgang Grape, Ottfried Schlak
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Patent number: 4645614Abstract: The electroviscous suspension is based on a mixture of aqueous silica gel with silicone oil as the liquid phase to which a dispersant is added. The dispersant consists of amino functional or silicon-functional polysiloxanes having a molecular weight above 800. The concentration of the dispersant is from 1 to 30% by weight and preferably from 5 to 20% by weight, based on the silica gel particles. Electroviscous suspensions such as these are distinguished by the fact that they are highly compatible with elastomeric materials, non-sedimenting, non-inflammable and physiologically acceptable. In addition, they are heat- and freeze-resistant over a wide temperature range and are largely unaffected by temperature and pressure in their viscosity.Type: GrantFiled: July 9, 1985Date of Patent: February 24, 1987Assignees: Bayer Aktiengesellschaft, Metzeler Kautschuk GmbHInventors: John Goossens, Gunter Oppermann, Wolfgang Grape, Volker Hartel
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Patent number: 4584360Abstract: The subject of the present invention is a process for the preparation of polydiorganosiloxanes containing hydroxyaryloxy terminal groups by reacting polydiorganosiloxanes containing bis-acyloxy terminal groups with diphenols in a molar ratio of 1:2 to 1:20.Type: GrantFiled: April 13, 1984Date of Patent: April 22, 1986Assignee: Bayer AktiengesellschaftInventors: Winfried Paul, Werner Nouvertne, Dieter Neuray, Helmut Steinberger, Wolfgang Grape
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Patent number: 4582874Abstract: An aqueous emulsion, having a long shelf life, of a low molecular weight silicone resin comprising by weight(a) 1-60% of a silicone resin of the formula ##EQU1## wherein R.sup.1 is a monovalent hydrocarbon radical having 1 -14C atoms,R.sup.2 is a monovalent hydrocarbon radical having 1 -18C atoms,x has a value from about 0.75 to 1.5 andy has a value from about 0.2 to 2.0,and having a viscosity of about 2 to 2000 mPa.s,(b) 0.1-10% of an emulsifier, and(c) water.Advantageously two non-ionic emulsifiers are used in combination.Type: GrantFiled: June 21, 1984Date of Patent: April 15, 1986Assignee: Bayer AktiengesellschaftInventors: Wolfgang Grape, Ottfried Schlak, Helmut Steinberger, Hermann Kober
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Patent number: 4554187Abstract: A silicone emulsion which can be converted into an elastomeric product under ambient conditions by eliminating and evaporating water and alcohol or carboxylic acid, comprising by weight approximately(A) 100 parts of a hydroxyl-terminated polydiorganosiloxane having a molecular weight of at least about 50,000,(B) 1 to 400 parts of a low molecular weight, reactive acyloxy or alkoxy-functional silicone resin,(C) 0.1 to 20 parts of a catalytic compound,(D) 0 to 200 parts of a thixotropic filler and(E) 0 to 200 parts by weight of a non-thixotropic filler, the silicone emulsion having a solids content of about 20 to 85% by weight. The emulsion is especially suited for coatings and sealants.Type: GrantFiled: June 21, 1984Date of Patent: November 19, 1985Assignee: Bayer AktiengesellschaftInventors: Wolfgang Grape, Franz Saykowski, Ottfried Schlak, Thomas Wurminghausen
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Patent number: 4552973Abstract: A process for the preparation of dimethyldichlorosilane from the low-boiling and high-boiling by-products of the direct synthesis of methylchlorosilane, comprising reacting methyltrichlorosilane simultaneously with the low-boiling components having a high content of methyl groups and with the high-boiling non-cleavable components, in the presence of a catalyst, at a temperature between about 250.degree. C. and 400.degree. C. and under a pressure of up to 100 bar.Type: GrantFiled: March 19, 1985Date of Patent: November 12, 1985Assignee: Bayer AktiengesellschaftInventors: Kurt Feldner, Wolfgang Grape