Patents by Inventor Ralf Hackfort
Ralf Hackfort 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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Publication number: 20220297414Abstract: A multi-layer polymer film comprising at least one middle layer A, the polymeric constituents of which are soluble in aqueous solution, and at least one substantially water-impermeable covering layer B or C arranged above and/or below the at least one middle layer A, wherein the layers A, B and C independently of each other in each case comprise at least one thermoplastic polymer and at least one of the covering layers B and C comprises at least one polyhydroxyalkanoate. Processes for the production of the multi-layer polymer film according to the invention and its use for the production of molded parts, films or bags are furthermore presented and described.Type: ApplicationFiled: June 13, 2022Publication date: September 22, 2022Inventors: Ralf Hackfort, Johannes Mathar, Frank Rörthmans, Harald Schmidt, Christoph Hess
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Patent number: 11358378Abstract: A multi-layer polymer film comprising at least one middle layer A, the polymeric constituents of which are soluble in aqueous solution, and in each case at least one substantially water-impermeable covering layer B, C arranged above and below the at least one middle layer A, wherein the layers A, B and C independently of each other in each case comprise at least one thermoplastic polymer and at least one of the covering layers B and C comprises at least one polyhydroxyalkanoate is presented and described. Processes for the production of the multi-layer polymer film according to the invention and its use for the production of molded parts, films or bags are furthermore presented and described.Type: GrantFiled: November 19, 2015Date of Patent: June 14, 2022Assignee: BIO-TEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KG.Inventors: Ralf Hackfort, Johannes Mathar, Frank Rörthmans, Harald Schmidt, Christoph Hess
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Publication number: 20180345637Abstract: A multi-layer polymer film comprising at least one middle layer A, the polymeric constituents of which are soluble in aqueous solution, and in each case at least one substantially water-impermeable covering layer B, C arranged above and below the at least one middle layer A, wherein the layers A, B and C independently of each other in each case comprise at least one thermoplastic polymer and at least one of the covering layers B and C comprises at least one polyhydroxyalkanoate is presented and described. Processes for the production of the multi-layer polymer film according to the invention and its use for the production of molded parts, films or bags are furthermore presented and described.Type: ApplicationFiled: November 19, 2015Publication date: December 6, 2018Inventors: Ralf Hackfort, Johannes Mathar, Frank Rörthmans, Harald Schmidt, Christoph Hess
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Patent number: 10131783Abstract: The invention relates to a polymer compound which, based on the total weight of the polymer compound, comprises at least the following components: (a) 5 to 50 wgt.-% destructed starch and/or starch derivative, (b) 20 to 70 wgt.-% aliphatic-aromatic copolymer, (c) 10 to 50 wgt.-% polyhydroxyalkanoate and (d) 3 to 25 wgt.-% polyactic acid. Such polymer compounds are characterized by a high ratio of bio-based carbon and exhibit no significant embrittlement or worsening of the mechanical properties profile, despite the presence of increased volumes of polyhydroxyalkanoate, even after storage. The invention further relates to production methods for the polymer compound according to the invention, and use thereof in the production of films, molded parts or fibers.Type: GrantFiled: April 8, 2014Date of Patent: November 20, 2018Assignee: BIO-TEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KGInventors: Harald Schmidt, Christoph Hess, Christophe Bréso, Ralf Hackfort, Frank Rörthmans, Wolfgang Friedek
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Publication number: 20160060451Abstract: The invention relates to a polymer compound which, based on the total weight of the polymer compound, comprises at least the following components: (a) 5 to 50 wgt.-% destructed starch and/or starch derivative, (b) 20 to 70 wgt.-% aliphatic-aromatic copolymer, (c) 10 to 50 wgt.-% polyhydroxyalkanoate and (d) 3 to 25 wgt.-% polyactic acid. Such polymer compounds are characterized by a high ratio of bio-based carbon and exhibit no significant embrittlement or worsening of the mechanical properties profile, despite the presence of increased volumes of polyhydroxyalkanoate, even after storage. The invention further relates to production methods for the polymer compound according to the invention, and use thereof in the production of films, molded parts or fibers.Type: ApplicationFiled: April 8, 2014Publication date: March 3, 2016Inventors: Harald Schmidt, Christoph Hess, Christophe Bréso, Ralf Hackfort, Frank Rörthmans, Wolfgang Friedek
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Patent number: 9228066Abstract: A method for the production of a polymer material is shown and described, which is characterized by: a) producing a mixture containing at least 1 to 75 wt.-% starch and/or starch derivative, 10 to 85 wt.-% polyester, and 0.01 to 7 wt.-% of a polymer containing an epoxy group; (b) homogenizing the mixture while supplying thermal and/or mechanical energy; (c) setting the water content of the mixture, so that the end product has a water content less than approximately 12 wt.-%, in relation to the total composition of the mixture. The polymer material produced with the method according to the invention is characterized by outstanding mechanical properties.Type: GrantFiled: October 22, 2008Date of Patent: January 5, 2016Assignee: BIOTEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KGInventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Patent number: 8715816Abstract: A multilayered film is shown and described that is used in particular for packaging, which comprises at least one first layer A and at least one second layer B, wherein layer A contains thermoplastic polyester and layer B contains thermoplastic starch. The multilayered film according to the invention is characterized by excellent barrier properties, low sensitivity to moisture, and good mechanical strength.Type: GrantFiled: April 11, 2007Date of Patent: May 6, 2014Assignee: Biotec Biologische Naturverpackungen GmbH & Co. KGInventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Patent number: 8563652Abstract: A thermoplastic polymer material containing starch is shown and described, which can be obtained by homogenizing a mixture containing 40 to 85 wt.-% starch and/or starch derivative, 15 to 55 wt.-% softener, and 0.01 to 7 wt.-% of a polymer which contains an epoxy group, while supplying thermal and/or mechanical energy and setting the water content of the mixture to less than approximately 12 wt.-%. The polymer material according to the invention is characterized by outstanding mechanical properties.Type: GrantFiled: October 22, 2008Date of Patent: October 22, 2013Assignee: Biotec Biologische Naturverpackungen GmbH & Co. KGInventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Patent number: 8513354Abstract: A thermoplastic polymer material containing starch is shown and described, which can be obtained by homogenizing a mixture containing 40 to 85 wt.-% starch and/or starch derivative, 15 to 55 wt.-% softener, and 0.01 to 7 wt.-% of a polymer which contains an epoxy group, while supplying thermal and/or mechanical energy and setting the water content of the mixture to less than approximately 12 wt.-%. The polymer material according to the invention is characterized by outstanding mechanical properties.Type: GrantFiled: October 22, 2008Date of Patent: August 20, 2013Assignee: Biotec Biologische Naturverpackungen GmbH & Co. KGInventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Publication number: 20100305240Abstract: A thermoplastic polymer material containing starch is shown and described, which can be obtained by homogenizing a mixture containing 40 to 85 wt.-% starch and/or starch derivative, 15 to 55 wt.-% softener, and 0.01 to 7 wt.-% of a polymer which contains an epoxy group, while supplying thermal and/or mechanical energy and setting the water content of the mixture to less than approximately 12 wt.-%. The polymer material according to the invention is characterized by outstanding mechanical properties.Type: ApplicationFiled: October 22, 2008Publication date: December 2, 2010Inventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Publication number: 20100249268Abstract: A method for the production of a polymer material is shown and described, which is characterized by: (a) producing a mixture containing at least 1 to 75 wt.-% starch and/or starch derivative, 10 to 85 wt.-% polyester, and 0.01 to 7 wt.-% of a polymer containing an epoxy group; (b) homogenizing the mixture while supplying thermal and/or mechanical energy; (c) setting the water content of the mixture, so that the end product has a water content of less than approximately 12 wt.-%, in relation to the total composition of the mixture. The polymer material produced with the method according to the invention is characterized by outstanding mechanical properties.Type: ApplicationFiled: October 22, 2008Publication date: September 30, 2010Inventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort
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Publication number: 20090179069Abstract: A multilayered film is shown and described that is used in particular for packaging, which comprises at least one first layer A and at least one second layer B, wherein layer A contains thermoplastic polyester and layer B contains thermoplastic starch. The multilayered film according to the invention is characterized by excellent barrier properties, low sensitivity to moisture, and good mechanical strength.Type: ApplicationFiled: April 11, 2007Publication date: July 16, 2009Inventors: Harald Schmidt, Christoph Hess, Johannes Mathar, Ralf Hackfort