Patents by Inventor Bernd Hisgen
Bernd Hisgen 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: 10843384Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular for the production of acrylonitrile-butadiene-styrene (ABS), wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a loop conduit (29) which comprises a static mixer (36), wherein the reagents (11, 12) are pressed in loops through the loop conduit (29) and passing the static mixer (36), whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the static mixer (36). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.Type: GrantFiled: June 9, 2016Date of Patent: November 24, 2020Assignee: INEOS STYROLUTION GROUP GMBHInventors: SangJun Ahn, Wolfgang Fischer, Norbert Niessner, Brian J. Banaszak, Roland Walker, Ula El-Jaby, Achim Stammer, Klaus-Dieter Hungenberg, Bernd Hisgen
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Patent number: 10525439Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular ABS, wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a gear pump (10) which comprises a housing and at least a first gear wheel that is rotatable relative to the housing about a first axis, and a second gear wheel that is rotatable relative to the housing about a second axis, wherein a loop conduit (29) is provided, and wherein the reagents (11, 12) are pressed in a loop through the loop conduit (29) and passing the gear wheels, whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the gear pump (10). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.Type: GrantFiled: April 11, 2016Date of Patent: January 7, 2020Assignee: INEOS STYROLUTION GROUP GMBHInventors: SangJun Ahn, Wolfgang Fischer, Norbert Niessner, Brian J. Banaszak, Roland Walker, Ula El-Jaby, Achim Stammer, Klaus-Dieter Hungenberg, Bernd Hisgen
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Publication number: 20180178411Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular for the production of acrylonitrile-butadiene-styrene (ABS), wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a loop conduit (29) which comprises a static mixer (36), wherein the reagents (11, 12) are pressed in loops through the loop conduit (29) and passing the static mixer (36), whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the static mixer (36). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.Type: ApplicationFiled: June 9, 2016Publication date: June 28, 2018Inventors: SangJun AHN, Wolfgang FISCHER, Norbert NIESSNER, Brian J. BANASZAK, Roland WALKER, Ula EL-JABY, Achim STAMMER, Klaus-Dieter HUNGENBERG, Bernd HISGEN
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Publication number: 20180085732Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular ABS, wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a gear pump (10) which comprises a housing and at least a first gear wheel that is rotatable relative to the housing about a first axis, and a second gear wheel that is rotatable relative to the housing about a second axis, wherein a loop conduit (29) is provided, and wherein the reagents (11, 12) are pressed in a loop through the loop conduit (29) and passing the gear wheels, whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the gear pump (10). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.Type: ApplicationFiled: April 11, 2016Publication date: March 29, 2018Inventors: SangJun AHN, Wolfgang FISCHER, Norbert NIESSNER, Brian J. BANASZAK, Roland WALKER, Ula EL-JABY, Achim STAMMER, Klaus-Dieter HUNGENBERG, Bernd HISGEN
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Patent number: 5217571Abstract: A process for the surface treatment of moldings based on liquid crystalline polymers with acidic or alkaline reagents includes using the reagents in a solvent which is an organic solvent to an extent of not less than 60% by weight.Type: GrantFiled: September 4, 1991Date of Patent: June 8, 1993Assignee: BASF AktiengesellschaftInventors: Bernhard Rosenau, Bernd Hisgen, Gerhard Heinz, Graham E. McKee, Helmut Muenstedt, Wolfgang Eberle, Hartmut Zeiner
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Patent number: 5097463Abstract: A laser-optical write and read process whereby a thermally alterable recording layer which contains liquid-crystalline compounds in homogeneous planar orientation and forms part of a multilayer, sheet-like recording material is written by means of a write laser beam with analogue or digital data in the form of thermally altered areas, whereafter the written data are read by means of a read laser beam, including: analyzing the light transmitted or reflected by the recording material, and reading the data by determining the polarization-optical contrast between the thermally altered and the unaltered areas and/or utilizing for this purpose the interference of the light rays which form from the laser lightwaves in a Gaussian intensity distribution owing to the different phase velocities of the light in the center of thermally altered areas on the one hand and their thermally unaltered surroundings on the other.Type: GrantFiled: February 10, 1988Date of Patent: March 17, 1992Assignee: BASF AktiengesellschaftInventors: Gerhard Wagenblast, Karl-Heinz Etzbach, Bernd Hisgen
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Patent number: 5092890Abstract: An implant material for replacing hard tissue containing as essential componentsA) 30 to 95% by weight of a thermotropically mesomorphic polymer,B) 5 to 70% by weight of an apatite andC) 0 to 60% by weight of a fibrous or particulate filler which differs from B).Type: GrantFiled: December 29, 1989Date of Patent: March 3, 1992Assignee: BASF AktiengesellschaftInventors: Heinz Pohlemann, Bernd Hisgen
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Patent number: 5068308Abstract: Aromatic polycondensates are prepared in a continuous process froma) aromatic hydroxy-, thio- and/or amino-carboxylic acids,b) aromatic dihydroxy-, dithio-, diamino- and/or hydroxy-amino compounds,c) urea as an optional component andd) a molar amount equivalent to the sum of components b) and c) of aromatic dicarboxylic acids,by1. reacting components a), b), d) and optionally c) with lower fatty acid anhydrides in excess at from 140.degree. to 280.degree. C. with distillative removal of fatty acids and fatty acid anhydrides,2. passing the oligomer mixture downward through a perpendicular precondensation zone to form a two-phase mixture of prepolymers and vaporous fatty acids,3. separating the prepolymers from the vaporous fatty acids and4. condensing the prepolymer in a condensation zone to give a granulable polycondensate.Type: GrantFiled: June 12, 1989Date of Patent: November 26, 1991Assignee: BASF AktiengesellschaftInventors: Gunter Pipper, Gerhard Heinz, Bernd Hisgen
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Patent number: 5011884Abstract: A polymeric molding composition contains(a) 20-70% by weight of a thermotropic, liquid-crystalline polymer(b) 10-50% by weight of a polycarbonate(c) 10-50% by weight of a polyester, the weight percentages (a), (b) and (c) adding up to 100, and(d) up to 60% by weight, based on the total amount of proportions (a), (b) and (c), of further polymers, fillers, reinforcing agents, processing aids or other additives, and is used for producing moldings, fibers, films or coatings.Type: GrantFiled: August 31, 1989Date of Patent: April 30, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Rosenau, Bernd Hisgen, Gerhard Heinz, Hans-Georg Braun, Dietrich Lausberg, Hartmut Zeiner
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Patent number: 4943617Abstract: A liquid crystalline copolymer contains a comonomer to which a radical ##STR1## is bonded, where X is a chemical bond, O or NR.sup.1, Y is a chemical bond or --CO--, R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and A is a linear or branched C.sub.2 -C.sub.20 -alkylene group which may be interrupted by --O-- or ##STR2## The liquid crystalline copolymers have very good lightfastness, high dichroism and a high absorption.Type: GrantFiled: September 1, 1987Date of Patent: July 24, 1990Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Bernd Hisgen
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Patent number: 4861858Abstract: Wholly aromatic thermotropic polyesters are based on(A) 30 to 60 mol % of 4-hydroxybenzoic acid,(B) 20 to 35 mol % of terephthalic acid and(C) 20 to 35 mol % of a mixture of(C.sub.1) trimethylhydroquinone and(C.sub.2) resorcinolthe molar ratio of C.sub.1 :C.sub.2 being within the range from 0.4:1 to 0.7:1 and the molar ratio of B:C within the range from 0.9:1 to 1.1:1.Type: GrantFiled: January 12, 1988Date of Patent: August 29, 1989Assignee: BASF AktiengesellschaftInventors: Hans-Jakob Kock, Bernd Hisgen, Michael Portugall, Erhard Seiler, Gerd Blinne
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Patent number: 4816555Abstract: Wholly aromatic mesomorphic polyester amides which form a liquid-crystalline fiber-forming melt below 320.degree. C., composed of(a) from 3 to 30 mol % of repeat units of the formula I ##STR1## (b) from 3 to 30 mol % of repeat units of the formula II and/or III ##STR2## (c) from 2 to 25 mol % of one or more of the repeat units of the formula IV, V or VI, ##STR3## (d) a molar amount corresponding to the total amount of components (a), (b) and (c) excluding the repeat unit of the formula III, of the repeat units of the formula VII ##STR4## which, if desired, can in part be replaced by repeat units of the formula VIII ##STR5## (e) if desired from 5 to 25 mol % of repeat units of the formula IX ##STR6## (f) repeat units of the formula X ##STR7## the molar proportions of components (a), (b), (c), (d), (e) and (f) in each case adding up to 100 mol %, and preparation thereof.Type: GrantFiled: December 4, 1986Date of Patent: March 28, 1989Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Hans-Jakob Kock
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Patent number: 4801676Abstract: Fully aromatic thermotropic polyesters based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(B) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid,(B.sub.2) isophthalic acid and(B.sub.3) from 0.5 to 5 mol % of a dicarboxylic acid of the general formula I ##STR1## where X is --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 -- or --C(CH.sub.3).sub.2 --, n is 0 or 1 and the two imide nitrogen atoms are meta or para to X, or their C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or bromine derivatives which are substituted in the nucleus,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone and(C.sub.2) 4,4'-dihydroxydiphenyl,the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.Type: GrantFiled: July 28, 1987Date of Patent: January 31, 1989Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Hans-Jakob Kock, Michael Portugall, Erhard Seiler, Gerd Blinne
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Patent number: 4788272Abstract: Wholly aromatic mesomorphic polyester amide imides which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) from 5 to 35 mole % of repeat units of the formula I and/or II ##STR1## where the Xs in the formulae I and II can be identical or different and each is --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 --or .dbd.C(CH.sub.3).sub.2 and n is 0 or 1,(b) from 0 to 30 mole % of repeat units of the formulae III and/or IV ##STR2## (c) a molar amount corresponding to the total amount of components a and b of one or more of the repeat units of the formulae V, VI, VII, VIII and IX ##STR3## (d) if desired from 5 to 25 mole % of one or more of the repeat units of the formulae X, XI and XII ##STR4## (e) repeat units of the formula XIII ##STR5## the mole percentages of components (a), (b), (c), (d) and (e) adding up to 100 mole % in each case,the preparation thereof and fibers, films and moldings prepared therefrom.Type: GrantFiled: December 4, 1986Date of Patent: November 29, 1988Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Michael Portugall, Rolf Steinberger
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Patent number: 4786706Abstract: Liquid-crystalline carbamyl-containing polycondensates composed of(a) aromatic hydroxycarboxylic and/or aminocarboxylic acids in which the hydroxyl and amino groups are not vicinal to the carboxyl group,(b) from 0.1 to 20 mol % of urea,(c) aromatic dihydroxy, diamino and/or hydroxy-amino compounds in which the hydroxyl and amino groups are not vicinal,(d) a molar amount equivalent to the total amount of components b and c of an aromatic dicarboxylic acid in which the carboxyl groups are not vicinal,the preparation thereof and fibers, films and moldings prepared therefrom.Type: GrantFiled: December 4, 1986Date of Patent: November 22, 1988Assignee: BASF AktiengesellschaftInventors: Hans-Jakob Kock, Bernd Hisgen, Michael Portugall
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Patent number: 4764582Abstract: Wholly aromatic thermotropic polyesters are based on(A) from 25 to 60 mol % of a mixture of(A.sub.1) 4-hydroxybenzoic acid and(A.sub.2) 3-hydroxybenzoic acid, 4-aminobenzoic acid and/or 3-aminobenzoic acid or their chlorine, bromine, C.sub.1 -C.sub.8 -alkyl or C.sub.1 -C.sub.8 -alkoxy derivatives substituted in the nucleus,the molar ratio of A.sub.1 to A.sub.2 being from 5:1 to 41:1,(B) from 20 to 37.5 mol % of a mixture of(B.sub.1) terephthalic acid and(B.sub.2) isophthalic acid,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 37.5 mol % of a mixture of(C.sub.1) hydroquinone and(C.sub.2) 4,4'-dihydroxydiphenyl,the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.Type: GrantFiled: August 11, 1987Date of Patent: August 16, 1988Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Hans-Jakob Kock, Michael Portugall, Erhard Seiler, Gerd Blinne
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Patent number: 4762906Abstract: Wholly aromatic mesomorphic polyether ester imides which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) from 5 to 35 mol % of repeat units of the formula I ##STR1## (b) from 5 to 35 mol % of repeat units of the formula II ##STR2## where X is a chemical bond, --O--, --S--, --SO.sub.2 --, --CO--, --Ch.sub.2 -- or .dbd.C(CH.sub.3).sub.2, and n is 0 or 1,(c) from 15 to 30 mol % of repeat units of the formula III ##STR3## (d) a molar amount corresponding to the total amount of (b) plus (c) minus (a) of repeat units of the formulae IV and/or V ##STR4## (e) repeat units of the formula VI ##STR5## the mole percentages of components a, b, c, d and e adding up to a 100 mol % in each case,the preparation thereof and fibers, films and molding prepared therefrom.Type: GrantFiled: December 4, 1986Date of Patent: August 9, 1988Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Michael Portugall, Gerd Blinne
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Patent number: 4751128Abstract: Fully aromatic themotropic polyesters are based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(B) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid and(B.sub.2) isophthalic acid,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone,(C.sub.2) 4,4'-dihydroxydiphenyl and(C.sub.3) from 0 to 5 mol % of a dihydroxy compound of the general formula I ##STR1## where R and R' are each C.sub.1 -C.sub.4 -alkyl, halogen or aryl, n is 1, 2 or 3 and m is 0 or 1,the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.Type: GrantFiled: July 31, 1987Date of Patent: June 14, 1988Assignee: BASF AktiengesellschaftInventors: Michael Portugall, Bernd Hisgen, Hans-Jakob Kock, Erhard Seiler, Gerd Blinne
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Patent number: 4749770Abstract: Wholly aromatic, mesomorphic polyesters which give a homogeneous liquid crystalline melt at below 320.degree. C. consist of(a) not less than 10 mol % of repeating units of the formula I ##STR1## (b) from 1 to 25 mol % of repeating units of the formula II ##STR2## (c) from 5 to 20 mol % of one or more of the repeating units of the formulae III to VII ##STR3## (d) from 5 to 15 mol % of repeating units of the formula VIII ##STR4## and (e) from 10 to 60 mol % of repeating units of the formula IX ##STR5## the sum of the molar amounts of (a), (b), (c), (d) and (e) being 100 mol % in each case and the molar ratio of the components (b)+(c)+(d) to component (e) being from 0.9:1 to 1.1:1.Type: GrantFiled: June 30, 1987Date of Patent: June 7, 1988Assignee: BASF AktiengesellschaftInventors: Hans-Jakob Kock, Michael Portugall, Bernd Hisgen, Juergen Mertes
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Patent number: RE33315Abstract: Wholly aromatic mesomorphic polyester amide imides which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) from 5 to 35 mole % of repeat units of the formula I and/or II ##STR1## where the Xs is the formulae I and II can be identical or different and each is --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 -- or .dbd.C(CH).sub.3).sub.2 and n is 0 or 1.(b) from 0 to 30 mole % of repeat units of the formulae III and/or IV ##STR2## (c) a molar amount corresponding to the total amount of components a and b of one or more of the repeat units of the formulae V, VI, VII, VIII and IX ##STR3## (d) if desired from 5 to 25 mole % of one or more of the repeat units of the formulae X, XI and XII ##STR4## (e) repeat units of the formula XIII ##STR5## the mole percentages of components (a), (b), (c), (d) and (e) adding up to 100 mole % in each case,the preparation thereof and fibers, films and moldings prepared therefrom.Type: GrantFiled: June 9, 1989Date of Patent: August 28, 1990Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Michael Portugall, Rolf Steinberger