Patents by Inventor Puthenkovilakom Rajesh Raja
Puthenkovilakom Rajesh Raja 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: 11267916Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: May 11, 2020Date of Patent: March 8, 2022Assignee: Eastman Chemical CompanyInventors: Terri Roxanne Carvagno, Susana Marques, Ming Allison Yuan, Da Yu Vincent Zhang, Boon Hui Janice Ang, Marc Stacey Somers, Raymond Prescott Cottle, Bennett H. Novak, Puthenkovilakom Rajesh Raja
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Publication number: 20200277419Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: May 11, 2020Publication date: September 3, 2020Applicant: Eastman Chemical CompanyInventors: Terri Roxanne Carvagno, Susana Marques, Ming Allison Yuan, Da Yu Vincent Zhang, Boon Hui Janice Ang, Marc Stacey Somers, Raymond Prescott Cottle, Bennett H. Novak, Puthenkovilakom Rajesh Raja
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Patent number: 10725406Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: January 24, 2019Date of Patent: July 28, 2020Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20200148800Abstract: A process for producing an ethylene copolymer, the process including: (a) contacting ethylene with at least one polar comonomer in the presence of at least one modifier and at least one free radical initiator in a tubular reactor under polymerization conditions including a pressure of from 225 to 270 MPa; (b) injecting the at least one free radical initiator into the reactor at a plurality of reaction zones spaced along the length of the reactor, wherein each reaction zone comprises an inlet and an outlet; (c) maintaining the temperature at the inlet of each reaction zone at 150° C. or less, and the temperature at the outlet of each reaction zone is at least 177° C.; (d) controlling the modifier flow at a rate of from 0.02 to 0.986 wt % of the copolymer; and (e) recovering the ethylene copolymer from the tubular reactor, is provided.Type: ApplicationFiled: May 8, 2018Publication date: May 14, 2020Inventors: Puthenkovilakom Rajesh Raja, Jeffrey D. Daily, Amit Kumar Ghosh, Anna C. Claerbout, Linda M. Van den Bossche, Paul J. Clymans
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Patent number: 10647795Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: June 7, 2018Date of Patent: May 12, 2020Assignee: Eastman Chemical CompanyInventors: Terri Roxanne Carvagno, Susana Marques, Ming Allison Yuan, Da Yu Vincent Zhang, Boon Hui Janice Ang, Marc Stacey Somers, Raymond Prescott Cottle, Bennett H. Novak, Puthenkovilakom Rajesh Raja
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Publication number: 20190171143Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: January 24, 2019Publication date: June 6, 2019Applicant: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 10308740Abstract: A low molecular weight copolymer is provided comprising propylene and ethylene, wherein the low molecular weight copolymer has a softening point in the range of 90 to 140° C., wherein the low molecular weight copolymer has a needle penetration that is equal to y, wherein y is defined by the following formula: y??0.000000262249x6+0.000172031278x5?0.046669720165x4+6.701746779438x3?537.286013331959x2+22,802.983472587x?400,204.018086126 wherein x in the above formula is the softening point of the low molecular weight copolymer, and wherein the low molecular weight copolymer has a molecular weight polydispersity index of about 3 to about 25, a crystallinity of about 18% to about 30% measured by X-Ray diffraction, and a Brookfield viscosity in the range of about 1000 to about 4000 cp at 190° C. measured by ASTM D 3236. Adhesive compositions comprising the low molecular weight copolymer are also provided.Type: GrantFiled: August 23, 2017Date of Patent: June 4, 2019Assignee: Eastman Chemical CompanyInventors: Mutombo Joseph Muvundamina, Gary Robert Robe, Timothy Williams, Andrea Gail Hagood, Dhiraj Sudesh Sood, Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 10214600Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: February 27, 2017Date of Patent: February 26, 2019Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20180057624Abstract: A low molecular weight copolymer is provided comprising propylene and ethylene, wherein the low molecular weight copolymer has a softening point in the range of 90 to 140° C., wherein the low molecular weight copolymer has a needle penetration that is equal to y, wherein y is defined by the following formula: y??0.000000262249x6+0.000172031278x5?0.046669720165x4+6.701746779438x3?537.286013331959x2+22,802.983472587x?400,204.018086126 wherein x in the above formula is the softening point of the low molecular weight copolymer, and wherein the low molecular weight copolymer has a molecular weight polydispersity index of about 3 to about 25, a crystallinity of about 18% to about 30% measured by X-Ray diffraction, and a Brookfield viscosity in the range of about 1000 to about 4000 cp at 190° C. measured by ASTM D 3236. Adhesive compositions comprising the low molecular weight copolymer are also provided.Type: ApplicationFiled: August 23, 2017Publication date: March 1, 2018Applicant: Eastman Chemical CompanyInventors: Mutombo Joseph Muvundamina, Gary Robert Robe, Timothy Williams, Andrea Gail Hagood, Dhiraj Sudesh Sood, Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20170166669Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Applicant: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 9611341Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: December 11, 2014Date of Patent: April 4, 2017Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 9593179Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: December 11, 2014Date of Patent: March 14, 2017Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 9428598Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: December 11, 2014Date of Patent: August 30, 2016Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 9399686Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: December 11, 2014Date of Patent: July 26, 2016Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Patent number: 9382351Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: GrantFiled: December 11, 2014Date of Patent: July 5, 2016Assignee: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20150225490Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: December 11, 2014Publication date: August 13, 2015Applicant: Eastman Chemical CompanyInventors: Marc Stacey Somers, Bennett H Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20150225619Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: December 11, 2014Publication date: August 13, 2015Applicant: EASTMAN CHEMICAL COMPANYInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20150225620Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: December 11, 2014Publication date: August 13, 2015Applicant: EASTMAN CHEMICAL COMPANYInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20150225621Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: December 11, 2014Publication date: August 13, 2015Applicant: EASTMAN CHEMICAL COMPANYInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle
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Publication number: 20150225622Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.Type: ApplicationFiled: December 11, 2014Publication date: August 13, 2015Applicant: EASTMAN CHEMICAL COMPANYInventors: Marc Stacey Somers, Bennett H. Novak, Puthenkovilakom Rajesh Raja, Raymond Prescott Cottle