Patents by Inventor Kai Oliver Siegenthaler
Kai Oliver Siegenthaler 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: 9540661Abstract: The present invention relates to a process for complete anaerobic digestion of polymer mixtures of the composition: a) 25 to 95% by weight of a polyhydroxyalkanoate selected from the group consisting of poly-4-hydroxybutyrate, poly-3-hydroxybutyrate, poly(3-hydroxybutyrate-co-3-hydroxyvalerate), poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and b) 5 to 75% by weight of an aliphatic polyester comprising: i) 65 to 100 mol %, based on components i to ii, of succinic acid or of a succinic acid derivative; ii) 0 to 35 mol %, based on components i to ii, of an aliphatic C5-C36-dicarboxylic acid, of a corresponding acid derivative or of a mixture; iii) 98 to 100 mol %, based on components i to ii, of a C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) 0 to 2% by weight, based on the polymer obtainable from components i to iii, of at least one polyfunctional compound comprising at least two isocyanate, isocyanurate, oxazoline or epoxide groups or at least three alcoType: GrantFiled: July 9, 2013Date of Patent: January 10, 2017Assignee: BASF SEInventors: Carsten Sinkel, Robert Loos, Karlheinz Jochem, Kai Oliver Siegenthaler, Xin Yang, Ulf Küper, Mathias Zimmermann
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Patent number: 9234073Abstract: A method of producing a molded article involving preparing a copolymer obtained by condensation of (i) 90 to 99.5 mol %, based on components i) to ii), of succinic acid; (ii) 0.5 to 10 mol %, based on components i) to ii), of 4 to 10 mol % sebacic acid; (iii) 98 to 102 mol %, based on components i) to ii), of 1,3-propanediol or 1,4-butanediol; (iv) 0.05 to 0.5% by weight, based on the total weight of components i) to iii), of a crosslinker; and (v) 0.35 to 2% by weight, based on the total weight of components i) to iii), of 1,6-hexamethylene diisocyanate. The copolymer is injection molded or blow molded to form a molded article having a wall thickness above 200 ?m.Type: GrantFiled: March 22, 2013Date of Patent: January 12, 2016Assignee: BASF SEInventors: Kai Oliver Siegenthaler, Andreas Füβl, Gabriel Skupin, Motonori Yamamoto
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Patent number: 9034945Abstract: The present invention relates to an item produced via thermoforming and comprising: i) a biodegradable polyester comprising: a) succinic acid; b) optionally one or more C6-C20 dicarboxylic acids; e) 1,3-propanediol or 1,4-butanediol; f) a chain extender or branching agent; ii) polylactic acid; iii) at least one mineral filler; The invention further relates to processes for producing the abovementioned items.Type: GrantFiled: June 28, 2012Date of Patent: May 19, 2015Assignee: BASF SEInventors: Kai Oliver Siegenthaler, Jörg Auffermann, Martin Bussmann, Kian Molawi
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Publication number: 20140080196Abstract: The present invention relates to a process for complete anaerobic digestion of polymer mixtures of the composition: a) 25 to 95% by weight of a polyhydroxyalkanoate selected from the group consisting of poly-4-hydroxybutyrate, poly-3-hydroxybutyrate, poly(3-hydroxybutyrate-co-3-hydroxyvalerate), poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and b) 5 to 75% by weight of an aliphatic polyester comprising: i) 65 to 100 mol %, based on components i to ii, of succinic acid or of a succinic acid derivative; ii) 0 to 35 mol %, based on components i to ii, of an aliphatic C5-C36-dicarboxylic acid, of a corresponding acid derivative or of a mixture; iii) 98 to 100 mol %, based on components i to ii, of a C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) 0 to 2% by weight, based on the polymer obtainable from components i to iii, of at least one polyfunctional compound comprising at least two isocyanate, isocyanurate, oxazoline or epoxide groups or at least three alcoType: ApplicationFiled: July 9, 2013Publication date: March 20, 2014Inventors: Carsten Sinkel, Robert Loos, Karlheinz Jochem, Kai Oliver Siegenthaler, Xin Yang, Ulf Küper, Mathias Zimmermann
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Publication number: 20140050934Abstract: A barrier packaging material containing a composite which comprises i) a cellulosic layer; ii) at least one metal layer which will dissolve under alkaline conditions; and iii) at least one polymer layer, in which the polymer is hydrolysable under alkaline conditions. The invention also relates to articles comprising the barrier packaging material. Further, the invention concerns the use of a polymer, which is hydrolysable under alkaline conditions, as a protective layer in barrier packaging products. In addition the present application is also concerned with a method for recycling the aforementioned barrier packaging products. Specifically the barrier packaging products are initially taken in an aqueous wastepaper suspension which is either pulped in an alkaline medium and/or treated in an alkaline medium in a deinking process and in which the metal and polymer are then separated from the cellulosic fibres contained in the cellulosic layer.Type: ApplicationFiled: April 16, 2012Publication date: February 20, 2014Applicant: BASF SEInventors: Kai Oliver Siegenthaler, Rainer Blum, Gabriel Skupin, Motonori Yamamoto
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Publication number: 20140017752Abstract: The present invention relates to a process for complete anaerobic digestion of polymer mixtures comprising: a) 25 to 95% by weight of a polyhydroxyalkanoate selected from the group consisting of poly-4-hydroxybutyrates, poly-3-hydroxybutyrates, poly(3-hydroxybutyrate-co-3-hydroxyvalerates), poly(3-hydroxybutyrate-co-3-hydroxyhexanoates) and poly(3-hydroxybutyrate-co-4-hydroxybutyrates), and b) 5 to 75% by weight of an aliphatic-aromatic polyester comprising: i) 65 to 95 mol %, based on components i to ii, of one or more C5-C36-dicarboxylic acid derivatives or C5-C36-dicarboxylic acids; ii) 35 to 5 mol %, based on components i to ii, of a terephthalic acid derivative or of a terephthalic acid; iii) 98 to 100 mol %, based on components i to ii, of an C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) 0 to 2% by weight, based on components i to iii, of at least one polyfunctional compound comprising at least two isocyanate, isocyanurate, oxazoline or epoxide groups or at least three alcohol or carboxylic acid grType: ApplicationFiled: July 9, 2013Publication date: January 16, 2014Inventors: Carsten Sinkel, Robert Loos, Karlheinz Jochem, Kai Oliver Siegenthaler, Xin Yang, Ulf Küper, Mathias Zimmermann
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Publication number: 20130005895Abstract: The present invention relates to an item produced via thermoforming and comprising: i) a biodegradable polyester comprising: a) succinic acid; b) optionally one or more C6-C20 dicarboxylic acids; e) 1,3-propanediol or 1,4-butanediol; f) a chain extender or branching agent; ii) polylactic acid; iii) at least one mineral filler; The invention further relates to processes for producing the abovementioned items.Type: ApplicationFiled: June 28, 2012Publication date: January 3, 2013Applicant: BASF SEInventors: Kai Oliver Siegenthaler, Jörg Auffermann, Martin Bussmann, Kian Molawi
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Publication number: 20130004759Abstract: The present invention relates to (1) an item produced via injection molding comprising: i) from 50 to 85% by weight of a biodegradable polyester with MVR (190° C., 2.16 kg) to ISO 1133 of from 10 to 100 cm3/10 min comprising: a) from 90 to 99.5 mol % of succinic acid; b) from 0.5 to 10 mol % of one or more C8-C20 dicarboxylic acids; and c) from 98 to 102 mol % of 1,3-propanediol or 1,4-butanediol; ii) from 15 to 50% by weight of polylactic acid; iii) from 10 to 50% by weight of at least one or more mineral fillers, where at least one filler is chalk; and (2) processes for producing the abovementioned items.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Applicant: BASF SEInventors: Kai Oliver Siegenthaler, Jörg Auffermann
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Publication number: 20120231280Abstract: The invention relates to a component comprising an insert part and plastics jacketing composed of at least two plastics components, where the insert part is enclosed by a first plastics component A and there is a second plastics component B enclosing the first plastics component A, where the first plastics component A is composed of: A1: from 5 to 80% by weight, based on the total weight of components A1 and A2, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and on aliphatic dihydroxy compounds; A2: from 20 to 95% by weight, based on the total weight of components A1 and A2, of at least one homo- or copolyester selected from the group consisting of polylactide (PLA), polycaprolactone, polyhydroxyalkanoates, and polyester derived from aliphatic dicarboxylic acids and from aliphatic diols; A3: from 0.Type: ApplicationFiled: November 16, 2010Publication date: September 13, 2012Applicant: BASF SEInventors: Rebekka von Benten, Alireza Talebloo, Harald Kröger, Peter Eibeck, Kai Oliver Siegenthaler
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Publication number: 20110313075Abstract: The present invention provides a copolymer obtainable by condensation of i) 90 to 99.5 mol %, based on components i to ii, of succinic acid; ii) 0.5 to 10 mol %, based on components i to ii, of one or more C2-C8 dicarboxylic acids; iii) 100 mol %, based on components i to ii, of 1,3-propanediol or 1,4-butanediol, and having a DIN 53728 viscosity number in the range from 100 to 450 mL/g. The invention further provides a process for producing the copolymers, polymer blends comprising these copolymers and also for the use of these copolymers.Type: ApplicationFiled: September 22, 2009Publication date: December 22, 2011Applicant: BASF SEInventors: Kai Oliver Siegenthaler, Andreas Füßl, Gabriel Skupin, Motonori Yamamoto
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Publication number: 20110187029Abstract: The present invention provides an aliphatic aromatic polyester comprising: i) 40 to 60 mol %, based on components i to ii, of one or more dicarboxylic acid derivatives selected from the group consisting of: sebacic acid, azelaic acid and brassylic acid; ii) 60 to 40 mol %, based on components i to ii, of a terephthalic acid derivative; iii) 98 to 102 mol %, based on components i to ii, of 1,3-propanediol or 1,4-butanediol, and iv) 0.01% to 5% by weight, based on the total weight of said components i to iii, of a chain extender and/or crosslinker selected from the group consisting of a polyfunctional isocyanate, isocyanurate, oxazoline, carboxylic anhydride, epoxide and/or an at least trihydric alcohol or an at least tribasic carboxylic acid. The present invention further provides a process for producing the polyesters, polyester blends comprising these polyesters and also for the use of these polyesters and polyester blends.Type: ApplicationFiled: September 22, 2009Publication date: August 4, 2011Applicant: BASF SEInventors: Björn Dietrich, Kai Oliver Siegenthaler, Gabriel Skupin, Andreas Künkel, Motonori Yamamoto