Patents by Inventor Gending Ji
Gending Ji 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: 11684115Abstract: A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).Type: GrantFiled: September 27, 2018Date of Patent: June 27, 2023Assignee: COOPER-STANDARD AUTOMOTIVE INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 11377514Abstract: A combined sealing member is provided that includes a composition comprising two or more polyolefin elastomers selected from the group consisting of a dense, a micro-dense and a dynamic silane-crosslinked polyolefin elastomer having a respective density of less than 0.90 g/cm3, less than 0.70 g/cm3, and less than 0.60 g/cm3. The combined sealing member exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).Type: GrantFiled: February 21, 2020Date of Patent: July 5, 2022Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Publication number: 20210388617Abstract: A roofing accessory is disclosed includes an elastomeric layer including non-crosslinked elastomeric material having a composition including: (A) 100 PHR of a base polymer including ethylene propylene diene monomer (EPDM) having a sum of ethylidene norbornene (ENB) content, vinyl norbornene (VNB) content, norbornadiene content, and 1,4 hexadiene content and/or dicyclopentadiene (DCPD) content from about 0 to 9 wt. %, (B) about 50 to 300 PHR of calcium carbonate; and (C) about 50 to 200 PHR of a dewaxed heavy paraffinic process oil(s). The accessory may further include a butyl-based layer adjacent to the elastomeric layer. The accessory may also include a protective layer configured as a liner, the protective layer arranged adjacent to the butyl-based layer such that the butyl-based layer is sandwiched between the first and protective layers. The accessory may have elongation at break of up to about 1800%.Type: ApplicationFiled: June 16, 2021Publication date: December 16, 2021Inventors: Krishnamachari GOPALAN, Robert J. LENHART, Gending JI, Jacob La FOREST
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Publication number: 20210198465Abstract: A roofing membrane includes (A) about 40 to 75 wt. % silane-crosslinked polyolefin elastomer/plastomer component including a blend of at least three different polyolefin elastomers, each having different melt mass-flow rate (MFR), measured at 190° C. under a 2.16 kg load, in a range of about 3.0 to 25.0 g/10 min, (E) about 1 to 20 wt. % functional filler(s) including a polyolefin; (F) UV/heat stabilizer(s); (G) antioxidant(s); and (H) fire retardant(s), wt. % based on the total weight of the roofing membrane.Type: ApplicationFiled: March 16, 2021Publication date: July 1, 2021Applicant: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari GOPALAN, Gending JI, Amber TUPPER, Jacob James LAFOREST, Hwanman PARK
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Patent number: 10895335Abstract: A hose made from a composition including one or more of EPR, EPDM, a silane-grafted polyolefin and a silicone-modified polyolefin; and one or more of fibers, polyamide powder, and ultra high molecular weight polyethylene powder. A hose comprising an outermost layer formed from a composition comprising: (A) at least one of EPR, EPDM, a silane-grafted polyolefin and a silicone-modified polyolefin; and (B) at least one of an ultra high molecular weight polyethylene powder, a polyamide powder, and fibers.Type: GrantFiled: July 25, 2019Date of Patent: January 19, 2021Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Philippe Moureaux
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Patent number: 10779608Abstract: An elastomeric article is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3. The elastomeric article can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm3, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst.Type: GrantFiled: December 8, 2017Date of Patent: September 22, 2020Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 10774168Abstract: A silane-grafted polyolefin composition is disclosed and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as windshield wipers, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: GrantFiled: March 9, 2019Date of Patent: September 15, 2020Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji
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Patent number: 10774955Abstract: A silane-grafted polyolefin composition is disclosed, and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as hoses, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: GrantFiled: June 7, 2018Date of Patent: September 15, 2020Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Gending Ji, Robert J. Lenhart, Eric Nicolino, Pierre Youinou
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Publication number: 20200199279Abstract: A combined sealing member is provided that includes a composition comprising two or more polyolefin elastomers selected from the group consisting of a dense, a micro-dense and a dynamic silane-crosslinked polyolefin elastomer having a respective density of less than 0.90 g/cm3, less than 0.70 g/cm3, and less than 0.60 g/cm3. The combined sealing member exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).Type: ApplicationFiled: February 21, 2020Publication date: June 25, 2020Applicant: Cooper-Standard Automotive Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 10689470Abstract: A static sealing member is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3. The static sealing member can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm3, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst.Type: GrantFiled: December 8, 2017Date of Patent: June 23, 2020Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 10689471Abstract: A microdense sealing member is provided. The microdense sealing member includes a composition having a foamed silane-crosslinked polyolefin elastomer with a density less than 0.70 g/cm3. The microdense sealing member can exhibit a compression set of from about 5.0% to about 35.0% measured according to ASTM D 395 (22 hrs @ 70° C.). The foamed silane-crosslinked polyolefin elastomer can be produced from a blend including a first polyolefin having a density less than 0.86 g/cm3, a second polyolefin having a crystallinity less than 60° C., a silane crosslinker, a grafting initiator, a condensation catalyst, and a microencapsulated foaming agent.Type: GrantFiled: December 8, 2017Date of Patent: June 23, 2020Assignee: COOPER-STANDARD AUTOMOTIVE, INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 10570236Abstract: A combined sealing member is provided that includes a composition comprising two or more polyolefin elastomers selected from the group consisting of a dense, a micro-dense and a dynamic silane-crosslinked polyolefin elastomer having a respective density of less than 0.90 g/cm3, less than 0.70 g/cm3, and less than 0.60 g/cm3. The combined sealing member exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).Type: GrantFiled: December 8, 2017Date of Patent: February 25, 2020Assignee: Cooper-Standard Automotive Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Publication number: 20190346072Abstract: A hose made from a composition including one or more of EPR, EPDM, a silane-grafted polyolefin and a silicone-modified polyolefin; and one or more of fibers, polyamide powder, and ultra high molecular weight polyethylene powder. A hose comprising an outermost layer formed from a composition comprising: (A) at least one of EPR, EPDM, a silane-grafted polyolefin and a silicone-modified polyolefin; and (B) at least one of an ultra high molecular weight polyethylene powder, a polyamide powder, and fibers.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Applicant: Cooper-Standard Automotive, Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Philippe Moreaux
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Patent number: 10371292Abstract: A hose made from a composition including one or more of EPR, EPDM, a silane-grafted polyolefin and a silicone-modified polyolefin; an one or more of fibers, polyamide powder, and ultra high molecular weight polyethylene powder. A hose comprising an outermost layer formed from a composition comprising: (A) at least one of EPR, EPDM, a silane-grafted polyolefin and a siliconemodified polyolefin; and (B) at least one of an ultra high molecular weight polyethylene powder, a polyamide powder, and fibers.Type: GrantFiled: July 1, 2015Date of Patent: August 6, 2019Assignee: COOPER-STANDARD AUTOMOTIVE INC.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Philippe Moreaux
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Publication number: 20190202957Abstract: A silane-grafted polyolefin composition is disclosed and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as windshield wipers, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: ApplicationFiled: March 9, 2019Publication date: July 4, 2019Applicant: Cooper Standard Automotive, Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji
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Publication number: 20190185604Abstract: A silane-grafted polyolefin composition is disclosed, and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as weatherstrips, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: ApplicationFiled: February 21, 2019Publication date: June 20, 2019Applicant: Cooper-Standard Automotive, Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji
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Publication number: 20190105883Abstract: A membrane that includes: at least one layer comprising a first silane-crosslinked polyolefin elastomer having a density from about 0.80 g/cm3to about 1.75 g/cm3. The silane-crosslinked polyolefin elastomer can exhibit a crystallinity of from about 5% to about 25% and a glass transition temperature of from about ?75° C. to about ?25° C. Further, the first silane-crosslinked polyolefin elastomer can comprise a first polyolefin having a density less than 0.90 g/cm3, a second polyolefin, a silane crosslinker, a grafting initiator, and a condensation catalyst. In addition, the at least one layer can comprise a thickness from about 0.2 mm to about 3 mm.Type: ApplicationFiled: December 7, 2018Publication date: April 11, 2019Applicant: Cooper-Standard Automotive Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Patent number: 10253127Abstract: A silane-grafted polyolefin composition is disclosed, and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as weatherstrips, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: GrantFiled: May 14, 2018Date of Patent: April 9, 2019Assignee: Cooper-Standard Automotive, Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji
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Publication number: 20190045881Abstract: A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).Type: ApplicationFiled: September 27, 2018Publication date: February 14, 2019Applicant: Cooper-Standard Automotive Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji, Roland Herd-Smith
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Publication number: 20190031805Abstract: A silane-grafted polyolefin composition is disclosed, and includes a desired reduced specific weight material. The composition finds application in a wide array of uses, and in particular automotive and uses such as weatherstrips, where this composition is used in place of conventional materials such as TPV and EPDM rubber formulations.Type: ApplicationFiled: September 27, 2018Publication date: January 31, 2019Applicant: Cooper-Standard Automotive, Inc.Inventors: Krishnamachari Gopalan, Robert J. Lenhart, Gending Ji