Patents by Inventor Hariharan Ramalingam
Hariharan Ramalingam 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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Publication number: 20170326823Abstract: Disclosed herein are methods for manufacturing a functionally graded polymer material. A method comprises preparing a melted polymer mixture comprising a thermoplastic polymer and a magnetic filler; molding the melted polymer mixture; and applying a magnetic field to a portion of the melted polymer mixture to form the functionally graded article, wherein as the melted polymer mixture flows into the mold, the melted polymer mixture comes into contact with the magnet field. Another method comprises molding the melted polymer mixture; and applying a magnetic field from a first magnet to a first portion of the melted polymer mixture and applying a magnetic field from a second magnet to a second portion of the melted polymer mixture to form the functionally graded article, wherein the first magnet and the second magnet are positioned in a manner such that the magnetic field produced by each are nonoverlapping.Type: ApplicationFiled: July 20, 2017Publication date: November 16, 2017Inventors: Poovanna Theethira Kushalappa, Sudhakar Ramamoorthy Marur, Hariharan Ramalingam, Sadasivam Gopalakrishnan
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Patent number: 9731456Abstract: Disclosed herein are methods for manufacturing a functionally graded polymer material. The methods comprise preparing a melted polymer mixture comprising a thermoplastic polymer and a magnetic filler dispersed in the thermoplastic polymer, molding the melted polymer mixture and applying a magnetic field to a portion of the melted polymer mixture to form a functionally graded polymer material. The resulting functionally graded polymer material has a magnetic filler gradient formed through a thickness of the material.Type: GrantFiled: March 14, 2013Date of Patent: August 15, 2017Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Poovanna Theethira Kushalappa, Sudhakar Ramamoorthy Marur, Hariharan Ramalingam, Sadasivam Golakrishanan
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Patent number: 9200159Abstract: A composition including a blend of: a) a polyethersulfone; b) a polyphenylene sulfide (PPS); and c) an epoxy, and optionally a polyetherimide, wherein the polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyethersulfone and polyphenylene sulfide (PPS). Methods of compatibilizing a blend of polyethersulfone and polyphenylene sulfide (PPS). The method can include melt mixing a polyethersulfone, and polyetherimide, a polyphenylene sulfide (PPS) and an epoxy under conditions of elevated temperature and simultaneous mixing.Type: GrantFiled: March 8, 2013Date of Patent: December 1, 2015Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Hariharan Ramalingam, Kapil Sheth
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Patent number: 9169387Abstract: Blends of a polyphenylene sulfone (PPSU); a polyphenylene sulfide (PPS); and, a polyetherimide and epoxy. The polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). Methods of compatibilizing a blend of polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). The method can include melt mixing a polyphenylene sulfone (PPSU) and a polyetherimide; and melt mixing a polyphenylene sulfide (PPS) and an epoxy.Type: GrantFiled: March 8, 2013Date of Patent: October 27, 2015Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Hariharan Ramalingam, Mark Sanner, Kapil Sheth
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Patent number: 8859651Abstract: Compositions including a blend of a) a polysulfone (PSU); b) a polyphenylene sulfide (PPS); and, c) a polyetherimide and epoxy. The polyetherimide and epoxy can be present in an amount effective to act as a compatibilizer for the polysulfone (PSU) and polyphenylene sulfide (PPS). Various embodiments relate to a method of compatibilizing a blend of polysulfone (PSU) and polyphenylene sulfide (PPS). The method can include a) melt mixing a polysulfone (PSU) and a polyetherimide; and b) melt mixing a polyphenylene sulfide (PPS) and an epoxy. Step a) and b) can be carried out by one of sequential mixing and simultaneous mixing.Type: GrantFiled: March 8, 2013Date of Patent: October 14, 2014Assignee: Sabic Global Technologies B.V.Inventors: Hariharan Ramalingam, Kapil Sheth
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Publication number: 20140272119Abstract: Disclosed herein are methods for manufacturing a functionally graded polymer material. The methods comprise preparing a melted polymer mixture comprising a thermoplastic polymer and a magnetic filler dispersed in the thermoplastic polymer, molding the melted polymer mixture and applying a magnetic field to a portion of the melted polymer mixture to form a functionally graded polymer material. The resulting functionally graded polymer material has a magnetic filler gradient formed through a thickness of the material.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Poovanna Theethira Kushalappa, Sudhakar Ramamoorthy Marur, Hariharan Ramalingam, Sadasivam Golakrishanan
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Publication number: 20140194580Abstract: Compositions including a blend of a) a polysulfone (PSU); b) a polyphenylene sulfide (PPS); and, c) a polyetherimide and epoxy. The polyetherimide and epoxy can be present in an amount effective to act as a compatibilizer for the polysulfone (PSU) and polyphenylene sulfide (PPS). Various embodiments relate to a method of compatibilizing a blend of polysulfone (PSU) and polyphenylene sulfide (PPS). The method can include a) melt mixing a polysulfone (PSU) and a polyetherimide; and b) melt mixing a polyphenylene sulfide (PPS) and an epoxy. Step a) and b) can be carried out by one of sequential mixing and simultaneous mixing.Type: ApplicationFiled: March 8, 2013Publication date: July 10, 2014Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Hariharan Ramalingam, Kapil Sheth
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Publication number: 20140194579Abstract: A composition including a blend of: a) a polyethersulfone; b) a polyphenylene sulfide (PPS); and c) an epoxy, and optionally a polyetherimide, wherein the polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyethersulfone and polyphenylene sulfide (PPS). Methods of compatibilizing a blend of polyethersulfone and polyphenylene sulfide (PPS). The method can include melt mixing a polyethersulfone, and polyetherimide, a polyphenylene sulfide (PPS) and an epoxy under conditions of elevated temperature and simultaneous mixing.Type: ApplicationFiled: March 8, 2013Publication date: July 10, 2014Applicant: SABIC INNOVATIVE PLASTICSIP B.V.Inventors: Hariharan Ramalingam, Kapil Sheth
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Publication number: 20140194556Abstract: Blends of a polyphenylene sulfone (PPSU); a polyphenylene sulfide (PPS); and, a polyetherimide and epoxy. The polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). Methods of compatibilizing a blend of polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). The method can include melt mixing a polyphenylene sulfone (PPSU) and a polyetherimide; and melt mixing a polyphenylene sulfide (PPS) and an epoxy.Type: ApplicationFiled: March 8, 2013Publication date: July 10, 2014Applicant: SABIC Innovative Plastics IP B.V.Inventors: Hariharan Ramalingam, Mark Sanner, Kapil Sheth
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Patent number: 8618218Abstract: Disclosed herein is a composition comprising a compatible blend of i) 24 to less than 84.5 weight percent of a linear poly(arylene sulfide), ii) 14 to 75 weight percent of a polysiloxane/polyimide block copolymer; and iii) 0.1 to less than 2.5 weight percent of a polymeric compatibilizer having 2 or more epoxy groups per molecule. Weight percent is based on the total weight of the composition. An article made from the composition has tensile elongation greater than or equal to 60% as determined by ASTM D638 and a Notched Izod impact strength greater than 50 joules per meter as determined by ASTM D256 at room temperature.Type: GrantFiled: September 27, 2011Date of Patent: December 31, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hariharan Ramalingam, Yashpal Bhandari, Gautam Chatterjee, Siva Kumar Sreeramagiri, Sanjay Braj Mishra
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Publication number: 20130079459Abstract: A composition comprising a compatible blend of i) 15 to 45 wt % of a linear poly (arylene sulfide), ii) 50 to 85 wt % of a polyetherimide sulfone; and iii) 1 to 3 wt % of a novolac resin having an average of 2 or more epoxy groups per molecule. The composition can comprise a polyetherimide. An article made from the composition has a property selected from the group of (i) tensile strength greater than or equal to 90 megaPascals (MPa), as determined by ASTM D638, (ii) an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m2), as determined by ASTM D256, (iii) an elongation at break greater than or equal to 3% as determined by ASTM D638, (iv) a heat distortion temperature greater than or equal to 160° C. as determined by ASTM D648, and combinations of two or more of the foregoing properties.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Hariharan Ramalingam, Gurulingamurthy M. Haralur, Siva Kumar Sreeramagiri, Gautam Chatterjee, Kapil Chandrakant Sheth, Sanjay Braj Mishra
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Publication number: 20130079438Abstract: Disclosed herein is a composition comprising a compatible blend of i) 60 to 85 weight percent of a linear poly(arylene sulfide), ii) 15 to 40 weight percent of a polyetherimide sulfone; and iii) 1 to 3 weight percent of a novolac resin having an average of 2 or more epoxy groups per molecule. Weight percent is based on the total weight of the composition. An article made from the composition has a tensile strength greater than or equal to 70 megaPascals (MPa), as determined by ASTM D638, an impact strength of greater than or equal to 3 kiloJoules per square meter (kJ/m2), as determined by ASTM D256, and an elongation at break greater than or equal to 3% as determined by ASTM D638. Methods of making the composition are also disclosed.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Hariharan Ramalingam, Gurulingamurthy M. Haralur, Siva Kumar Sreeramagiri, Gautam Chatterjee, Kapil Chandrakant Sheth, Sanjay Braj Mishra
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Publication number: 20130079474Abstract: Disclosed herein is a composition comprising a compatible blend of i) 24 to less than 84.5 weight percent of a linear poly(arylene sulfide), ii) 14 to 75 weight percent of a polysiloxane/polyimide block copolymer; and iii) 0.1 to less than 2.5 weight percent of a polymeric compatibilizer having 2 or more epoxy groups per molecule. Weight percent is based on the total weight of the composition. An article made from the composition has tensile elongation greater than or equal to 60% as determined by ASTM D638 and a Notched Izod impact strength greater than 50 joules per meter as determined by ASTM D256 at room temperature.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Hariharan Ramalingam, Yashpal Bhandari, Gautam Chatterjee, Siva Kumar Sreeramagiri, Sanjay Braj Mishra
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Patent number: 7902314Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.Type: GrantFiled: March 5, 2010Date of Patent: March 8, 2011Assignee: Momentive Performance Materials Inc.Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
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Publication number: 20100249358Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.Type: ApplicationFiled: March 5, 2010Publication date: September 30, 2010Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
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Publication number: 20080255318Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b)D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.Type: ApplicationFiled: November 21, 2007Publication date: October 16, 2008Applicant: Momentive Performance Materials Inc.Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Mark D. Leatherman, Suresh K. Rajaraman, Hariharan Ramalingam