Patents by Inventor Petra Baierweck
Petra Baierweck 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: 6329448Abstract: A continuous process for preparing pigmented thermoplastic molding compositions in an extruder, comprises I) in a first zone A) metering in from 10 to 99.999% by weight of a thermoplastic polymer into an extruder and II) in a subsequent zone at temperatures below the respective glass transition temperature of the thermoplastic A) B) adding from 0.001 to 60% by weight of a colorant and then heating the thermoplastic/colorant mixture in the subsequent zones, homogenizing the polymer melt and extruding the resultant mixture.Type: GrantFiled: February 29, 2000Date of Patent: December 11, 2001Assignee: BASF AktiengesellschaftInventors: Herbert Gutsche, Rainer Anderlik, Norbert Kress, Dieter Gress, Bernd Brian, Petra Baierweck, Herbert Mosner, Hermann Brandt, Helmut Heel
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Patent number: 5482983Abstract: Flameproofed thermoplastic molding materials containA) from 10 to 98.45% by weight of a thermoplastic polyamide,B) from 1 to 30% by weight of phosphorus,C) from 0.5 to 30% by weight of an elastomeric polymer,D) from 0.05 to 15% by weight of a polyethylene having a density of from 0.94 to 0.98 g/cm.sup.3 or of a polypropylene having an average molecular weight M.sub.w of from 100,000 to 2,000,000 or a mixture thereof andE) from 0 to 60% by weight of a fibrous or particulate filler.Type: GrantFiled: January 31, 1995Date of Patent: January 9, 1996Assignee: BASF AktiengesellschaftInventors: Petra Baierweck, Brigitte Gareiss, Christoph Plachetta, Hans-Peter Beringer
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Patent number: 5482985Abstract: Flameproofed thermoplastic polyamide molding materials containA) from 40 to 98% by weight of a thermoplastic polyamide,B) from 0.5 to 30% by weight of melamine cyanurate,C) from 0.5 to 50% by weight of magnesium hydroxide,D) from 1 to 50% by weight of a fibrous or particulate filler or of a mixture thereof which differs from B) and C) andE) from 0 to 30% by weight of conventional additives or processing assistants.Type: GrantFiled: March 24, 1995Date of Patent: January 9, 1996Assignee: BASF AktiengesellschaftInventors: Petra Baierweck, Brigitte Gareiss, Karlheinz Ulmerich, Michael Gall, Manfred Koetting
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Patent number: 5482998Abstract: Thermoplastic molding materials containA) 4-94% by weight of a partly aromatic, semicrystalline copolyamide having a triamine content of less than 0.5% by weight and composed of(A.sub.1) 20-90% by weight of units derived from terephthalic acid and hexamethylenediamine,(A.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam,(A.sub.3) 0-80% by weight of units derived from adipic acid and hexametheylenediamine and(A.sub.4) 0-40% by weight of further polyamide-forming monomers,the amount of components (A.sub.2) or (A.sub.3) or (A.sub.4) or of mixtures thereof being not less than 10% by weight,B) 4-94% by weight of a polyolefin homo- or copolymer or a mixture thereof,C) 2-20% by weight of an adhesion promoter,D) 0-20% by weight of a toughening polymer andE) 0-60 % by weight of additives and processing assistants.Type: GrantFiled: August 8, 1994Date of Patent: January 9, 1996Assignee: BASF AktiengesellschaftInventors: Klaus Muehlbach, Petra Baierweck, Wolfgang F. Mueller, Gerd Blinne, Gerhard Ramlow
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Patent number: 5464894Abstract: Flameproofed thermoplastic molding materials are obtainable by mixing from 20 to 70% by weight of a mixture of carbonates of metals of the 2nd main group of the Periodic Table of Elements in a melt of from 10 to 80% by weight of a polyester prepolymer having a viscosity number of from 40 to 100 ml/g and subsequently carrying out solid-phase postcondensation.Type: GrantFiled: March 31, 1994Date of Patent: November 7, 1995Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Petra Baierweck, Christoph Plachetta, Karlheinz Ulmerich
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Patent number: 5434209Abstract: Flameproofed thermoplastic molding materials containA) 30-98% by weight of a thermoplastic polyamide,B) 1-30% by weight of red phosphorus,C) 1-15% by weight of a mono- or diphenolic compound or of a mixture thereof,D) 0-60% by weight of a fibrous or particulate filler or of a mixture thereof andE) 0-30% by weight of an elastomeric polymer.Type: GrantFiled: December 2, 1993Date of Patent: July 18, 1995Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Petra Baierweck
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Patent number: 5412017Abstract: Flameproofed thermoplastic molding materials are obtainable by mixingA) from 20 to 70% by weight of a magnesium hydroxide andB) from 0 to 70% by weight of conventional additives and processing assistantsinto a melt ofC) from 10 to 80% by weight of a polyamide prepolymer having a viscosity number of from 40 to 100 ml/gand then carrying out solid-phase postcondensation.Type: GrantFiled: March 18, 1994Date of Patent: May 2, 1995Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Petra Baierweck, Christoph Plachetta, Karlheinz Ulmerich
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Patent number: 5405890Abstract: A flameproofed black thermoplastic molding material containingA) from 5 to 98.9% by weight of a thermoplastic polyamide,B) from 1 to 20% by weight of red phosphorusC) from 0.1 to 5% by weight of a colorant complementary with red phosphorus to produce blackened polyamide,D) from 0 to 30% by weight of an elastomeric polymer,E) from 0 to 50% by weight of a fibrous or particulate filler or of a mixture thereof,F) from 0 to 70% by weight of a polyphenylene ether andG) from 0 to 30% by weight of conventional additives and processing assistants,the percentages by weight of components A to G being 100% in each case.Type: GrantFiled: January 13, 1994Date of Patent: April 11, 1995Assignee: BASF AktiengesellschaftInventors: Petra Baierweck, Doris Zeltner, Brigitte Gareiss, Heiner Goerrissen, Karlheinz Ulmerich, Klaus Muehlbach, Michael Gall
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Patent number: 5326850Abstract: Molding materials are composed ofA) from 40 to 100% by weight of a copolyamide based ona.sub.1) from 1 to 20 mol%, based on the copoly- amide, of at least one monomer that contains at least one olefinic double bond (monomers a.sub.1) from the group of the.alpha..sub.1) olefinically unsaturated lactams,.alpha..sub.2) olefinically unsaturated aminocarboxylic acids,.alpha..sub.3) olefinically unsaturated dicarboxylic acids,.alpha..sub.4) olefinically unsaturated diamines, anda2) from 80 to 99 mol%, based on the copolyamide, of at least one monomer that contains no olefinic double bonds (monomers a2) from the group of the.beta..sub.1) lactams.beta..sub.2) aminocarboxylic acids,.beta..sub.3) dicarboxylic acids,.beta..sub.4) diamines, andB) from 0 to 35% by weight of an impact modifying rubber,C) from 0 to 50% by weight of a filler and/or reinforcing agent,D) from 0 to 20% by weight of a flame retardant, andE) from 0 to 10% by weight of further additives and processing aids.Type: GrantFiled: March 3, 1993Date of Patent: July 5, 1994Assignee: BASF AktiengesellschaftInventors: Walter Goetz, Brigitte Gareiss, Andreas Deckers, Petra Baierweck
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Patent number: 5266656Abstract: Molding materials are composed ofA) from 40 to 100% by weight, based on the total weight of the molding material, of a polyamide mixture based ona.sub.1) from 5 to 30% by weight, based on the total weight of the polyamide mixture, of at least one homo- or copolyamide that contains olefinic double bonds and comprises.alpha.) from 40 to 100 mol %, based on homo- or copolyamide, of at least one monomer that contains at least one olefinic double bond (monomers .alpha.) from the group of the.alpha..sub.1) olefinically unsaturated lactams,.alpha..sub.2) olefinically unsaturated aminocarboxylic acids,.alpha..sub.3) olefinically unsaturated dicarboxylic acids,.alpha..sub.4) olefinically unsaturated diamines, and.beta.) from 0 to 60 mol %, based on homo- or copolyamide, of at least one monomer that contains no olefinic double bonds (monomers .beta.) from the group of the.beta..sub.1) lactams.beta..sub.2) aminocarboxylic acids,.beta..sub.3) dicarboxylic acids,.beta..sub.4) diamines, anda.sub.Type: GrantFiled: March 3, 1993Date of Patent: November 30, 1993Assignee: BASF AktiengesellschaftInventors: Walter Goetz, Brigitte Gareiss, Andreas Deckers, Petra Baierweck
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Patent number: 5135971Abstract: Flameproofed thermoplastic molding compositions contain(A) 10-99% by weight of a thermoplastic polyamide or polyester or polyphenylene ether or a mixture thereof,(B) 1-50% by weight of red phosphorus having a particle size of up to 2 mm which contains, per 100 parts by weight, from 0.05 to 5 parts by weight of a polyurethane or polyester-polyurethane as phlegmatizer,(C) 0-60% by weight of a fibrous or particulate filler or a mixture thereof and(D) 0-20% by weight of an elastomeric polymer.Type: GrantFiled: March 6, 1991Date of Patent: August 4, 1992Assignee: BASF AktiengesellschaftInventors: Peter Steiert, Hans-Peter Weiss, Christoph Plachetta, Petra Baierweck, Klaus Muehlbach, Brigitte Gareiss
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Patent number: 5049599Abstract: Flameproofed thermoplastic molding compositions contain(A) 10-99% by weight of a thermoplastic polyamide or polyester or polyphenylene ether or a mixture thereof,(B) 1-50% by weight of red phosphorus having a particle size of up to 2 mm which contains, per 100 parts by weight, from 0.05 to 5 parts by weight of a polyurethane or polyester-polyurethane as phlegmatizer,(C) 0-60% by weight of a fibrous or particulate filler or a mixture thereof and(D) 0-20% by weight of an elastomeric polymer.Type: GrantFiled: January 24, 1990Date of Patent: September 17, 1991Assignee: BASF AktiengesellschaftInventors: Peter Steiert, Hans-Peter Weiss, Christoph Plachetta, Petra Baierweck, Klaus Muehlbach, Brigitte Gareiss