Patents by Inventor Yona Eckstein
Yona Eckstein 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: 10000624Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: GrantFiled: September 27, 2016Date of Patent: June 19, 2018Assignee: Lubrizol Advanced Materials, Inc.Inventors: Qiwei Lu, Yona Eckstein, Donald A. Meltzer
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Publication number: 20170015815Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: ApplicationFiled: September 27, 2016Publication date: January 19, 2017Inventors: Qiwei Lu, Yona Eckstein, Donald A. Meltzer
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Publication number: 20150340675Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: ApplicationFiled: March 23, 2015Publication date: November 26, 2015Inventors: Qiwei Lu, Yona Eckstein
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Patent number: 9012590Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: GrantFiled: October 1, 2010Date of Patent: April 21, 2015Assignee: Lubrizol Advanced Materials, Inc.Inventors: Qiwei Lu, Donald A. Meltzer, Yona Eckstein
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Publication number: 20140287323Abstract: The invention relates to a membrane comprising a poly(dialkylene ester) thermoplastic polyurethane composition. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a separator membrane disposed between said positive and negative electrodes, wherein the said membrane comprises (A) the described poly(dialkylene ester) thermoplastic polyurethane composition.Type: ApplicationFiled: October 24, 2012Publication date: September 25, 2014Inventors: Qiwei Lu, Feina Cao, Tesham Gor, Jian Xie, Yadong Liu, Yona Eckstein
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Publication number: 20140255792Abstract: The invention relates to a polymer gel electrolyte system for use in an electrochemical cell having positive and negative electrodes, said electrolyte system comprising: (A) a poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a polymer electrolyte disposed between said positive and negative electrodes, wherein the polymer electrolyte comprises (A) the poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent.Type: ApplicationFiled: October 24, 2012Publication date: September 11, 2014Applicant: Lubrizol Advanced Materials, Inc.Inventors: Feina Cao, Tesham Gor, Qiwei Lu, Yona Eckstein, Jian Xie, Donald A. Meltzer
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Publication number: 20130202970Abstract: The present invention relates to inherently electrostatic dissipative polymers, such as thermoplastic urethanes (TPU), and compositions thereof. The present invention provides a composition comprising: (a) an inherently dissipative polymer and (b) a halogen-free metal salt of an amidoalkanesulfonic acid, a hydrocarbyl-substituted benzenesulfonic acid, or a mixture thereof, or a polymer derived therefrom. The invention also provides a shaped polymeric article comprising the inherently dissipative polymer compositions described herein. The invention also provides a process of making the inherently dissipative polymer compositions described herein. The process includes the step of mixing a halogen-free metal-containing salt into an inherently dissipative polymer.Type: ApplicationFiled: October 26, 2011Publication date: August 8, 2013Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Qiwei Lu, Carlos A. Piedrahita, Yona Eckstein, James M. Ludlow, III
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Publication number: 20130022877Abstract: The present invention relates to electrostatic dissipative thermoplatic urethanes (TPU) and compositions thereof. The present invention provides a composition comprising: (a) an inherently dissipative polymer and (b) a halogen-free lithium-containing salt. The invention also provides a shaped polymeric article comprising the inherently dissipative polymer compositions described herein. The invention also provides a process of making the inherently dissipative polymer compositions described herein. The process includes the step of mixing a halogen-free lithium-containing salt into an inherently dissipative polymer.Type: ApplicationFiled: March 25, 2011Publication date: January 24, 2013Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Qiwei Lu, Yona Eckstein
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Patent number: 8148475Abstract: Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyether or polyester polyol reacted with a diisocyanate. A melt spinning process is also disclosed using a polyether polyurethane with a crosslinking agent. Long melt spinning run times can be achieved without experiencing excessive pressure buildup in the spinneret and fiber breakage. The thermoplastic polyether polyurethane polymers are made by reacting: (1) a blend of two or more hydroxyl terminated intermediates wherein one intermediate is a polyether intermediate and has a higher number average molecular weight than the other said polyether intermediates, and wherein the weighted average number average molecular weight of said blend is greater than 1200 Daltons; (2) at least one polyisocyanate; and (3) at least one hydroxyl terminated chain extender.Type: GrantFiled: June 29, 2004Date of Patent: April 3, 2012Assignee: Lubrizol Advanced Materials, Inc.Inventors: Ravi R. Vedula, Yona Eckstein, Yinbing Xia, James E. Bryson, Jr., Christopher A. Sprague, Julius Farkas
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Publication number: 20110092648Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: ApplicationFiled: October 1, 2010Publication date: April 21, 2011Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Qiwei Lu, Donald A. Meltzer, Yona Eckstein
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Patent number: 7799255Abstract: Articles such as melt spun elastic tape and heaving denier monofilament fibers are made from thermoplastic polyurethane (TPU) polymers. The process to make the articles involves using a substantially horizontal cooling to cool the melt spun articles. Preferably, the cooling is accomplished by a water bath. A crosslinking agent is added to the TPU polymer melt to enhance the elastic properties of the articles.Type: GrantFiled: June 29, 2004Date of Patent: September 21, 2010Assignee: Lubrizol Advanced Materials, Inc.Inventors: Ravi R. Vedula, Yona Eckstein, Yinbing Xia, Stanley J. Nerderman
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Patent number: 7763351Abstract: Articles such as melt spun elastic tape and heaving denier monofilament fibers are made from thermoplastic polyurethane (TPU) polymers. The process to make the articles involves using a substantially horizontal cooling to cool the melt spun articles. Preferably, the cooling is accomplished by a water bath. A crosslinking agent is added to the TPU polymer melt to enhance the elastic properties of the articles.Type: GrantFiled: April 24, 2008Date of Patent: July 27, 2010Assignee: Lubrizol Advanced Materials, Inc.Inventors: Ravi R. Vedula, Yona Eckstein, Yinbing Xia, Stanley J. Nerderman
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Publication number: 20080193733Abstract: Articles such as melt spun elastic tape and heaving denier monofilament fibers are made from thermoplastic polyurethane (TPU) polymers. The process to make the articles involves using a substantially horizontal cooling to cool the melt spun articles. Preferably, the cooling is accomplished by a water bath. A crosslinking agent is added to the TPU polymer melt to enhance the elastic properties of the articles.Type: ApplicationFiled: April 24, 2008Publication date: August 14, 2008Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Ravi R. Vedula, Yona Eckstein, Yinbing Xia, Stanley J. Nerderman
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Patent number: 7358295Abstract: An anti-static polymer composition comprises a thermoformable, moldable, hybrid urethane-vinyl polymer composition which exhibits relatively low surface and volume resistivities and good toughness. The hybrid polymer composition can be made without volatile organic compounds such as solvents, neutralizing amines, or both.Type: GrantFiled: May 20, 2004Date of Patent: April 15, 2008Assignee: Lubrizol Advanced Materials, Inc.Inventors: Timothy D. Miller, Yona Eckstein, Alexander V. Lubnin, Gary A. Anderle, Shui-Jen Raymond Hsu
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Publication number: 20050025966Abstract: Articles such as melt spun elastic tape and heaving denier monofilament fibers are made from thermoplastic polyurethane (TPU) polymers. The process to make the articles involves using a substantially horizontal cooling to cool the melt spun articles. Preferably, the cooling is accomplished by a water bath. A crosslinking agent is added to the TPU polymer melt to enhance the elastic properties of the articles.Type: ApplicationFiled: June 29, 2004Publication date: February 3, 2005Inventors: Ravi Vedula, Yona Eckstein, Yinbing Xia, Stanley Nerderman
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Publication number: 20040266301Abstract: Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyether or polyester polyol reacted with a diisocyanate. A melt spinning process is also disclosed using a polyether polyurethane with a crosslinking agent. Long melt spinning run times can be achieved without experiencing excessive pressure buildup in the spinneret and fiber breakage. The thermoplastic polyether polyurethane polymers are made by reacting: (1) a blend of two or more hydroxyl terminated intermediates wherein one intermediate is a polyether intermediate and has a higher number average molecular weight than the other said polyether intermediates, and wherein the weighted average number average molecular weight of said blend is greater than 1200 Daltons; (2) at least one polyisocyanate; and (3) at least one hydroxyl terminated chain extender.Type: ApplicationFiled: June 29, 2004Publication date: December 30, 2004Inventors: Ravi R. Vedula, Yona Eckstein, Yinbing Xia, James E. Bryson, Christopher A. Sprague, Julius Farkas
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Publication number: 20040214937Abstract: An anti-static polymer composition comprises a thermoformable, moldable, hybrid urethane-vinyl polymer composition which exhibits relatively low surface and volume resistivities and good toughness. The hybrid polymer composition can be made without volatile organic compounds such as solvents, neutralizing amines, or both.Type: ApplicationFiled: May 20, 2004Publication date: October 28, 2004Inventors: Timothy D. Miller, Yona Eckstein, Alexander V. Lubnin, Gary A. Anderle, Shui-Jen Raymond Hsu
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Patent number: 6777466Abstract: Flame retardant thermoplastic polyurethane (TPU) compositions are disclosed having melamine cyanurate as the only organic flame retardant additive. Processes are disclosed to make the TPU compositions and to make wire and cable constructions having the TPU compositions as the jacket of the wire and cable constructions. The TPU compositions have excellent physical properties and are capable of passing both the UL-1581 section 1080 and UL-1581 section 1080, subject 758, section G tests for wire and cable constructions. The levels of melamine cyanurate used in the TPU compositions are from about 28 to about 50 weight percent of the TPU composition. The ultimate tensile strength of the TPU composition is greater than 1500 psi and preferably greater than 2900 psi. The TPU compositions also have both a low LOI % and a low peak rate of heat release.Type: GrantFiled: February 8, 2002Date of Patent: August 17, 2004Assignee: Noveon IP Holdings Corp.Inventors: Yona Eckstein, Larry Edward Hewitt, Bela B. Fudala
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Publication number: 20030166749Abstract: Flame retardant thermoplastic polyurethane (TPU) compositions are disclosed having melamine cyanurate as the only organic flame retardant additive. Processes are disclosed to make the TPU compositions and to make wire and cable constructions having the TPU compositions as the jacket of the wire and cable constructions.Type: ApplicationFiled: February 8, 2002Publication date: September 4, 2003Inventors: Yona Eckstein, Larry Edward Hewitt, Bela B. Fudala
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Patent number: 6140405Abstract: A low molecular weight polyether oligomer is modified with a salt during chain extending reaction of the polyether oligomer to form electrostatic dissipative polymer products such as polyurethanes, polyether amide block copolymers and polyether-ester block copolymers. The reaction product polymers exhibit relatively low surface and volume resistivities, and static decay times which are not too fast or too slow, yet are free of excessive amounts of extractable anions, particularly chlorine, nitrate, phosphate and sulfate. The electrostatic dissipative polymers can be blended with a variety of base polymers to form plastic alloys, which in turn can be utilized to form articles useful in the manufacture of electrostatic sensitive electronic devices.Type: GrantFiled: September 21, 1998Date of Patent: October 31, 2000Assignee: The B. F. Goodrich CompanyInventors: Yona Eckstein, Ramakrishna Ravikiran