Patents by Inventor Frank Diedering
Frank Diedering 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: 11542660Abstract: A process for manufacturing an aramid pulp including polyvinyl pyrrolidone (PVP), the method including the steps of: combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, subjecting the mixture to a refining step to form a para-aramid pulp including PVP. It has been found that the process makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.Type: GrantFiled: August 22, 2017Date of Patent: January 3, 2023Assignee: TEIJIN ARAMID B.V.Inventors: Walter Nijhuis, Jan-Cees Tiecken, Frank Diedering
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Patent number: 11111632Abstract: An aramid paper suitable for use in electronic applications which has a density of 0.20-0.65 g/cm3 and a grammage of 30-280 g/m2, which paper comprises 10-40 wt. % of aramid shortcut with a linear density of 2.6 dtex or lower and a length of 0.5-25 mm and 10-90 wt. % of aramid fibrid, wherein the aramid shortcut comprises at least 70 wt. % para-aramid shortcut and the aramid fibrid including at least 70 wt. % para-aramid fibrid. It has been found that the use of a paper with the above properties in electronic applications ensures a low CTE in combination with good homogeneity and a good dimensional stability resulting from good resin adhesion and penetration. Use of the aramid paper in a composite sheet including at least one layer of aramid paper and a resin, or in a substrate board for electronic applications.Type: GrantFiled: November 27, 2017Date of Patent: September 7, 2021Assignee: TEIJIN ARAMID B.V.Inventors: Antonius Hendriks, Mónica López-Lorenzo, Jan-Cees Tiecken, Frank Diedering
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Patent number: 10774892Abstract: A friction paper including filler, para-aramid pulp, and resin, characterised in that the para-aramid pulp includes 0.1 to 10 wt. % of polyvinyl pyrrolidone (PVP), the paper having a grammage in the range of 100 to 800 g/m2. It has been found that the use of a PVP-containing para-aramid pulp leads to improved friction performance as compared to the use of para-aramid pulp not containing PVP. Effects obtained include improved friction properties, improved strength properties, and improved filler retention.Type: GrantFiled: August 22, 2017Date of Patent: September 15, 2020Assignee: TEIJIN ARAMID B.V.Inventors: Walter Nijhuis, Frank Diedering, Jan-Cees Tiecken
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Publication number: 20190376237Abstract: An aramid paper suitable for use in electronic applications which has a density of 0.20-0.65 g/cm3 and a grammage of 30-280 g/m2, which paper comprises 10-40 wt. % of aramid shortcut with a linear density of 2.6 dtex or lower and a length of 0.5-25 mm and 10-90 wt. % of aramid fibrid, wherein the aramid shortcut comprises at least 70 wt. % para-aramid shortcut and the aramid fibrid including at least 70 wt. % para-aramid fibrid. It has been found that the use of a paper with the above properties in electronic applications ensures a low CTE in combination with good homogeneity and a good dimensional stability resulting from good resin adhesion and penetration. Use of the aramid paper in a composite sheet including at least one layer of aramid paper and a resin, or in a substrate board for electronic applications.Type: ApplicationFiled: November 27, 2017Publication date: December 12, 2019Applicant: TEIJIN ARAMID B.V.Inventors: Antonius HENDRIKS, Mónica LÓPEZ-LORENZO, Jan-Cees TIECKEN, Frank DIEDERING
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Publication number: 20190211895Abstract: A friction paper including filler, para-aramid pulp, and resin, characterised in that the para-aramid pulp includes 0.1 to 10 wt. % of polyvinyl pyrrolidone (PVP), the paper having a grammage in the range of 100 to 800 g/m2. It has been found that the use of a PVP-containing para-aramid pulp leads to improved friction performance as compared to the use of para-aramid pulp not containing PVP. Effects obtained include improved friction properties, improved strength properties, and improved filler retention.Type: ApplicationFiled: August 22, 2017Publication date: July 11, 2019Applicant: TEIJIN ARAMID B.V.Inventors: Walter NIJHUIS, Frank DIEDERING, Jan-Cees TIECKEN
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Publication number: 20190177917Abstract: A process for manufacturing an aramid pulp including polyvinyl pyrrolidone (PVP), the method including the steps of: combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, subjecting the mixture to a refining step to form a para-aramid pulp including PVP. It has been found that the process makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.Type: ApplicationFiled: August 22, 2017Publication date: June 13, 2019Applicant: TEIJIN ARAMID B.V.Inventors: Walter NIJHUIS, Jan-Cees TIECKEN, Frank DIEDERING
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Patent number: 10003057Abstract: A paper suitable for use as separator in an electrochemical cell, including at least 60 wt. % of an aramid fibril and at least 1 wt. % of an aramid fiber. The paper has a grammage of 5 to 100 g/m2, and the aramid fibril has a Canadian Standard Freeness (CSF) in a wet phase of less than 300 ml and a specific surface area (SSA) after drying of less than 3 m2/g. It has been found that a paper with this composition combines good electrolyte absorption and ion permeability with high stability during use, leading to a long lifetime for the electrochemical cell.Type: GrantFiled: August 28, 2014Date of Patent: June 19, 2018Assignee: TEIJIN ARAMID B.V.Inventors: Fresia Alvarado Chacon, Ramon Van Rooij, Richard Visser, Jan David Tiecken, Frank Diedering
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Patent number: 9922750Abstract: An electrical insulating paper having 40-80 wt % of aramid fibrid, 10-50 wt % of aramid pulp, and 10-50 wt % of aramid short-cut. The aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler value of 15-85; the aramid fibrid is para-aramid fibrid; and the aramid short-cut is para-aramid short-cut. The paper shows a high dielectric strength and tensile index. A method for manufacturing the paper and an insulated conductor that includes the paper.Type: GrantFiled: November 14, 2013Date of Patent: March 20, 2018Assignee: TEIJIN ARAMID B.V.Inventors: Ben Rolink, Richard Visser, Frank Diedering
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Publication number: 20160197325Abstract: A paper suitable for use as separator in an electrochemical cell, including at least 60 wt. % of an aramid fibril and at least 1 wt. % of an aramid fiber. The paper has a grammage of 5 to 100 g/m2, and the aramid fibril has a Canadian Standard Freeness (CSF) in a wet phase of less than 300 ml and a specific surface area (SSA) after drying of less than 3 m2/g. It has been found that a paper with this composition combines good electrolyte absorption and ion permeability with high stability during use, leading to a long lifetime for the electrochemical cell.Type: ApplicationFiled: August 28, 2014Publication date: July 7, 2016Applicant: TEIJIN ARAMID B.V.Inventors: Fresia ALVARADO CHACON, Ramon VAN ROOIJ, Richard VISSER, Jan David TIECKEN, Frank DIEDERING
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Publication number: 20150318078Abstract: An electrical insulating paper having 40-80 wt % of aramid fibrid, 10-50 wt % of aramid pulp, and 10-50 wt % of aramid short-cut. The aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler value of 15-85; the aramid fibrid is para-aramid fibrid; and the aramid short-cut is para-aramid short-cut. The paper shows a high dielectric strength and tensile index. A method for manufacturing the paper and an insulated conductor that includes the paper.Type: ApplicationFiled: November 14, 2013Publication date: November 5, 2015Inventors: Ben ROLINK, Richard VISSER, Frank DIEDERING
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Publication number: 20130277089Abstract: An electrical insulating paper including 40-100% by weight of para-aramid fibrid wherein the para-aramid has at least 95% para bonds between the aromatic moieties. The paper may further contain up to 60% by weight of at least one of aramid pulp, aramid floc, aramid staple fiber, aramid fibril, meta-aramid fibrid, meta-/para-aramid fibrid, fillers, thermal conductive fillers, and common paper additives such as fillers, for example kaolin, binders, fibers, tackifiers, and adhesives. The paper can be used in insulated conductors and transformers, generators and electric motors.Type: ApplicationFiled: December 23, 2011Publication date: October 24, 2013Applicant: TEIJIN ARAMID B.V.Inventors: Ben Gerhardus Antonius Rolink, Richard Visser, Frank Diedering