Patents by Inventor Atze Jan Nijenhuis
Atze Jan Nijenhuis 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: 10040904Abstract: Process for the production of a thermoplastic polymer comprising segments of a diamide, the process comprising: 1) a first step of preparing a reaction mixture comprising a diamine H2N—Y—NH2 Form. (I), and a diester of a dicarboxylic acid Form. (II) 2) a second step of heating the reaction mixture to a temperature at least 5° C. above the crystallization temperature of the diester and a least 5° C. below the melting temperature of the formed amide (formula III) in the presence of an alkaline or earth alkaline alkoxy catalyst Form. (III) wherein X and Y are the same or different and are an aliphatic group comprising 2-12 carbon atoms or an aromatic group comprising 6-20 carbon atoms, R1 and R2 are the same or different and are an aliphatic group comprising 2-15 carbon atoms and wherein R equals R1 or R2 and are the same or different.Type: GrantFiled: July 10, 2014Date of Patent: August 7, 2018Assignee: DSM IP ASSETS B.V.Inventors: Wilhelmus Petrus Johannes Appel, Carel Frederik Constantijn Fitié, Atze Jan Nijenhuis, Beert Jacobus Keestra, Josien Krijgsman, Michel Henri Chrétien Joseph Van Houtem, Henricus Marie Janssen
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Publication number: 20160200869Abstract: Process for the production of a thermoplastic polymer comprising segments of a diamide, the process comprising: 1) a first step of preparing a reaction mixture comprising a diamine H2N—Y—NH2 Form. (I), and a diester of a dicarboxylic acid Form. (II) 2) a second step of heating the reaction mixture to a temperature at least 5° C. above the crystallization temperature of the diester and a least 5° C. below the melting temperature of the formed amide (formula III) in the presence of an alkaline or earth alkaline alkoxy catalyst Form. (III) wherein X and Y are the same or different and are an aliphatic group comprising 2-12 carbon atoms or an aromatic group comprising 6-20 carbon atoms, R1 and R2 are the same or different and are an aliphatic group comprising 2-15 carbon atoms and wherein R equals R1 or R2 and are the same or different.Type: ApplicationFiled: July 10, 2014Publication date: July 14, 2016Inventors: Wilhelmus Petrus Johannes APPEL, Carel Frederik Constantijn FITIÉ, Atze Jan NIJENHUIS, Beert Jacobus KEESTRA, Josien KRIJGSMAN, Michel Henri Chrétien Joseph VAN HOUTEM, Henricus Marie JANSSEN
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Patent number: 9315625Abstract: The invention relates to a polyamide comprising units derived from: A. a diamine comprising in its structure at least one cyclohexane fragment according to Structure I, in which the substituents are in the 1,4-trans-position (Structure I), with n a positive integer of at least 1, and the proviso that when n is 2 or higher the cyclohexane rings are connected to each other through the 1,4-trans position, B. an aliphatic dicarboxylic acid with at least 13 carbon atoms and optionally comprising units derived from: C. one or more aliphatic dicarboxylic acids other than B, D. one or more diamines other than A, E. one or more monofunctional carboxylic acids or monofunctional amines, F. one or more polyfunctional monomers comprising carboxylic acid and/or amine groups, G. one or more lactams or corresponding amino acids. The invention further relates to a composition comprising such a polyamide and its uses.Type: GrantFiled: May 24, 2013Date of Patent: April 19, 2016Assignee: DSM IP ASSETS B.V.Inventors: Rudy Rulkens, Atze Jan Nijenhuis
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Patent number: 9120895Abstract: Thermoplastic elastomer containing hard segments and soft segments, the soft segments containing the residue of a dimerized fatty acid and the residue of a dimerized fatty amine.Type: GrantFiled: April 20, 2010Date of Patent: September 1, 2015Assignee: DSM IP ASSETS B.V.Inventors: Atze Jan Nijenhuis, Zeynep Ozyurek
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Publication number: 20150141613Abstract: The invention relates to a polyamide comprising units derived from: A. a diamine comprising in its structure at least one cyclohexane fragment according to Structure I, in which the substituents are in the 1,4-trans-position (Structure I), with n a positive integer of at least 1, and the proviso that when n is 2 or higher the cyclohexane rings are connected to each other through the 1,4-trans position, B. an aliphatic dicarboxylic acid with at least 13 carbon atoms and optionally comprising units derived from: C. one or more aliphatic dicarboxylic acids other than B, D. one or more diamines other than A, E. one or more monofunctional carboxylic acids or monofunctional amines, F. one or more polyfunctional monomers comprising carboxylic acid and/or amine groups, G. one or more lactams or corresponding amino acids. The invention further relates to a composition comprising such a polyamide and its uses.Type: ApplicationFiled: May 24, 2013Publication date: May 21, 2015Inventors: Rudy Rulkens, Atze Jan Nijenhuis
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Patent number: 8986800Abstract: Cooking bag containing a copolymer containing monomer units of a dimerised fatty acid or a derivative thereof. Use the cooking bag for cooking food. A process for storing and cooking of food comprising the steps: a) filling the cooking with food, b) storing the filled cooking bag at a temperature below 0° C., c) cooking the food.Type: GrantFiled: September 7, 2010Date of Patent: March 24, 2015Assignee: DSM IP Assets B.V.Inventors: Atze Jan Nijenhuis, Paul Willem Jan Van Den Heuvel, Paul Alexander Moruzi
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Publication number: 20130317140Abstract: A polymer composition containing a polymer, which polymer contains a residue of a dimerised fatty acid and/or a derivative thereof, which polymer composition contains an epoxidized plasticizer.Type: ApplicationFiled: December 12, 2011Publication date: November 28, 2013Applicant: DSM IP Assets B.V.Inventors: Zeynep Özyürek, Atze Jan Nijenhuis, Paul Willem Jan Van Den Heuvel, Francois Antoine Marie Buijsch Op Den
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Patent number: 8304468Abstract: This invention is in the field of polymer chemistry. More in particular it provides a method to produce polymers such as block copolymers or cross-linked networks that are suitable for medical applications. The invention also provides degradable materials that may degrade completely when used in the human or animal body, minimizing residual components that may be toxic or otherwise undesirable.Type: GrantFiled: September 7, 2006Date of Patent: November 6, 2012Assignee: DSM IP Assets B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Mark Johannes Boerakker, Atze Jan Nijenhuis
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Publication number: 20120244268Abstract: Cooking bag containing a copolymer containing monomer units of a dimerised fatty acid or a derivative thereof. Use the cooking bag for cooking food. A process for storing and cooking of food comprising the steps: a) filling the cooking with food, b) storing the filled cooking bag at a temperature below 0° C., c) cooking the food.Type: ApplicationFiled: September 7, 2010Publication date: September 27, 2012Inventors: Atze Jan Nijenhuis, Paul Willem Jan Van Den Heuvel, Paul Alexander Moruzi
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Publication number: 20120128977Abstract: Flame retardant polymer composition comprising: A) a copolyester elastomer containing a) hard polyester segments made up of repeating units derived from an aliphatic diol and an aromatic dicarboxylic acid, b) soft polyester segments containing repeating units derived from an aliphatic carbonate, B) 0-30 parts of one or more further polymers, C) 1-15 parts of a halogen containing flame retardant. D) 0-15 parts of a halogen-free flame retardant, wherein sum of the components A, B, C and D is 100 parts.Type: ApplicationFiled: June 15, 2010Publication date: May 24, 2012Inventors: Angelika Schmidt, Atze Jan Nijenhuis
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Publication number: 20120123086Abstract: Thermoplastic elastomer containing hard segments and soft segments, the soft segments containing the residue of a dimerised fatty acid and the residue of a dimerised fatty amine.Type: ApplicationFiled: April 20, 2010Publication date: May 17, 2012Inventors: Atze Jan Nijenhuis, Zeynep Ozyurek
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Publication number: 20100324689Abstract: The invention relates to an artificial spinal implant comprising a thermoplastic elastomer comprising a hard phase and soft phase, wherein the hard phase comprises a polymer chosen from the group consisting of polyester, polyamide, polystyrene, polyacrylate and polyolefin and the soft phase comprises a polymer chosen from the group consisting of polyether, polyester, polyacrylate, polyolefin and polysiloxane.Type: ApplicationFiled: October 30, 2008Publication date: December 23, 2010Inventors: Darren Donald Obrigkeit, Atze Jan Nijenhuis
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Publication number: 20090156707Abstract: This invention is in the field of polymer chemistry. More in particular it provides a method to produce polymers such as block copolymers or cross-linked networks that are suitable for medical applications. The invention also provides degradable materials that may degrade completely when used in the human or animal body, minimizing residual components that may be toxic or otherwise undesirable.Type: ApplicationFiled: September 7, 2006Publication date: June 18, 2009Applicant: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Mark Johannes Boerakker, Atze Jan Nijenhuis
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Publication number: 20090029145Abstract: The invention relates to a new process for the preparation of nano-structured and/or nano-porous surfaces, coatings having a nano-structured and/or nano-porous surface and articles comprising said coatings. The invention also relates to the use of coatings according to the invention, in particular as anti-reflective coatings. The process for the preparation of the surface nano-structured and/or nano-porous coatings is a process comprising the steps of a) applying a mixture to a substrate which mixture comprises i) reactive nano-particles ii) at least one solvent iii) optionally a compound having at least one polymerisable group, in an amount that results in an increase in the transmission of at least 0.5%, for at least part of the electromagnetic spectrum between 400 and 800 nm, after the mixture has been applied and cured on a transparent substrate, in comparison with the same substrate without a coating b) inducing crosslinking and/or polymerisation in the mixture applied to the substrate.Type: ApplicationFiled: July 30, 2008Publication date: January 29, 2009Applicant: DSM IP Assets B.V.Inventors: Jens Christoph THIES, Guido Josefina Wilhelmus Meijers, Atze Jan Nijenhuis, Edwin Currie, Christopher Tronche, John Southwell