Nishant S Negandhi

US Patent:

7625964, Dec 1, 2009

Filed:

Apr 14, 2008

Appl. No.:

12/102096

Inventors:

Jin Zhu - Medina OH, US
Nishant Negandhi - Medina OH, US

Assignee:

Ovation Polymer Technology and Engineered Materials, Inc. - Cleveland OH

International Classification:

C08K 5/523

US Classification:

524127, 524140, 524141

Abstract:

The invention relates to a flame retardant polycarbonate composition which is comprised of a polycarbonate, a phosphoric acid ester, a functionalized acrylic polymer, and an alkyl methacrylate-diene-vinyl aromatic terpolymer, wherein the polycarbonate is present in the composition in an amount of at least about 85 weight percent, wherein the phosphoric acid ester is present at a level which is within the range of about 1 weight percent to about 12 weight percent, wherein the functionalized acrylic polymer is present at a level which is within the range of about 0. 5 weight percent to about 4. 5 weight percent, and wherein the alkyl methacrylate-diene-vinyl aromatic terpolymer is present at a level which is within the range of about 0. 5 weight percent to about 4. 5 weight percent, with the proviso that the sum of the amount of the functionalized acrylic polymer and the alkyl methacrylate-diene-vinyl aromatic terpolymer present in the composition does not total more than 5 weight percent.

US Patent:

7723419, May 25, 2010

Filed:

Sep 16, 2008

Appl. No.:

12/211805

Inventors:

Asis Banerjie - Medina OH, US
Nishant Negandhi - Medina OH, US

Assignee:

Ovation Polymer Technology & Engineered Materials, Inc. - Medina OH

International Classification:

C08K 3/00
C08K 3/28
A01H 5/00
B60C 1/00
C08K 3/04
C04B 26/06
C08K 3/10

US Classification:

524404, 524428, 524437, 524495

Abstract:

This specification discloses a conductive composition relying upon spherical boron nitride particles and thermally expanded graphite to impart high through-plane thermal conductivity in thermoplastics for use in hot environments, including the electronics industry.

US Patent:

7771805, Aug 10, 2010

Filed:

Jun 1, 2006

Appl. No.:

11/445113

Inventors:

Nishant Satish Negandhi - Medina OH, US
Jin Zhu - Medina OH, US

Assignee:

Ovation Polymer Technology and Engineered Materials, Inc. - Medina OH

International Classification:

B32B 27/08
B32B 27/34
B32B 27/36
B65D 6/40
B65D 8/18

US Classification:

428 357, 428 341, 428 366, 428 3692, 220601, 220678

Abstract:

The invention relates to a novel composition comprising at least one polyphthalamide reactively extruded with at least one other polyamide, a polyester, and a modifier. The composition can be further modified with fillers to add increased strength. Other additives such as colorants, flame retardants, and UV degradation inhibitors are also contemplated. This composition exhibits superior barrier to organic vapors, impact strength and heat distortion temperatures. Also disclosed are articles using this novel composition such as fuel tanks for gasoline engines used to power lawn mowers and garden machinery.

US Patent:

7855001, Dec 21, 2010

Filed:

Jul 28, 2008

Appl. No.:

12/180805

Inventors:

Nishant Negandhi - Medina OH, US
Hrishikesh Manian - Medina OH, US

Assignee:

Ovation Polymer Technology and Engineered Materials, Inc. - Cleveland OH

International Classification:

C08G 63/183
C08L 51/00
C08L 51/04
C08L 51/06
G11B 5/127
C08K 3/04
B82B 1/00

US Classification:

428800, 524496

Abstract:

This invention relates to a thermoplastic polymer composition that exhibits excellent characteristics for being thermoformed into a wide variety of packaging trays for electronics, including the disk drive and semiconductor industries. More specifically, these trays are applicable as packaging material for head suspension assembly and offer conductivities in the range of antistatic to electrostatic dissipation (ESD). For instance, the thermoplastic polymer composition of this invention offers improved stiffness, improved chemical resistance, the capable of enduring more washing cycles, the capability of being dried at higher temperatures, improved cleanliness, and better electrical conductivity that conventional PETG/IDP polymer blends. The thermoplastic polymer composition of this invention is comprised of (1) a polyethylene terephthalate glycol copolyester, (2) from 1 weight percent to 6 weight percent carbon nanotubes, (3) from 2 weight percent to 30 weight percent of a copolymer of ethylene with a higher α-olefin, wherein the copolymer is of ethylene with the higher α-olefin is grafted with maleic anhydride or glycidyl methacrylate, (4) from 1 weight percent to 10 weight percent of a functionalized rubbery polymer, (5) from 1 weight percent to 10 weight percent of an acrylic based core-shell polymer, and (6) from 0. 5 weight percent to 6 weight percent of a lubricant selected from the group consisting of high density polyethylene and polyester wax, where the polyethylene terephthalate glycol copolyester makes up the balance of the composition and wherein all weight percentages are based upon the total weight of the thermoplastic polymer composition.

US Patent:

7932314, Apr 26, 2011

Filed:

Jul 28, 2008

Appl. No.:

12/220780

Inventors:

Hrishikesh Manian - Medina OH, US
Nishant Negandhi - Medina OH, US

Assignee:

Ovation Polymer Technology and Engineered Materials, Inc. - Cleveland OH

International Classification:

C08K 3/04
G11C 5/12

US Classification:

524496, 428800, 29737, 525148, 525 67, 525133, 525 69

Abstract:

This invention relates to a thermoplastic polymer composition that exhibits an excellent combination of properties for use in manufacturing shipping combs for use in conjunction with moving actuators for hard disk drives. The thermoplastic polymer composition of this invention is comprised of (1) from 10 weight percent to 90 weight percent polycarbonate, (2) from 1 weight percent to 6 weight percent carbon nanotubes, (3) from 5 weight percent to 85 weight percent of a sulfone polymer, (4) from 0. 5 weight percent to 10 weight percent of a functionalized rubbery polymer, and (5) from 0. 5 weight percent to 5 weight percent of a lubricant selected from the group consisting of high density polyethylene and polyester wax, wherein all weight percentages are based upon the total weight of the thermoplastic polymer composition.

US Patent:

8062725, Nov 22, 2011

Filed:

Feb 25, 2011

Appl. No.:

13/035787

Inventors:

Jin Zhu - Ningbo, CN
Nishant Satish Negandhi - Medina OH, US

Assignee:

Ovetion Polymer Technology and Engineered Materials, Inc. - Medina OH

International Classification:

B32B 27/08
B32B 27/34
B32B 27/36
B65D 6/40
B65D 8/18

US Classification:

428 357, 428 341, 428 366, 428 3692, 220601, 220678

Abstract:

The invention relates to a novel composition comprising at least one polyphthalamide reactively extruded with at least one other polyamide, a polyester, and a modifier. The composition can be further modified with fillers to add increased strength. Other additives such as colorants, flame retardants, and UV degradation inhibitors are also contemplated. This composition exhibits superior barrier to organic vapors, impact strength and heat distortion temperatures. Also disclosed are articles using this novel composition such as fuel tanks for gasoline engines used to power lawn mowers and garden machinery.

US Patent:

8608984, Dec 17, 2013

Filed:

Feb 23, 2011

Appl. No.:

13/033314

Inventors:

Prasad Taranekar - Cleveland OH, US
Arunkumar Venkatesan - Twinsburg OH, US
Nishant Negandhi - Medina OH, US
Asis Banerjie - Medina OH, US

Assignee:

Cleveland Medical Polymers, Inc. - Cleveland OH

International Classification:

H01B 1/02
H01B 1/22
H01B 1/06
H01J 1/14

US Classification:

252511, 252512, 252514, 252515

Abstract:

A multifunctional polymer nano-composite sensor system for detecting various biosignals like ECG and other kinds of signals for sensing strain, temperature and moisture has been disclosed. This sensor system includes (1) a polymer nano-composite sensor material that is flexible, elastic, soft, and conductive, (2) a sensor material fabricated into a desired shape or form, and (3) a signal capturing interface for collecting, transmitting and processing the signals. This sensor system can easily be integrated into a user environment for various user-transparent sensing applications. The present invention more specifically reveals a multi-functional nano-composite sensor for detecting biologically generated electrical signals which is comprised of a polymeric composition having an electrically conductive wire embedded therein, wherein the polymeric composition has a dispersion phase and a dispersed phase, wherein the dispersion phase is comprised of a thermoplastic polymer or a thermoset polymer, wherein the dispersed phase includes an electrically conductive filler, wherein the polymeric composition is gel-free, and wherein the electrically conductive wire is adapted for conveying an electrical signal to a signal processing device. The present invention further discloses a polymeric composition which is comprised of a thermoplastic polyurethane, a styrenic polymer, and at least one electrically conductive filler wherein the styrenic polymer is present in the composition at a level which is within the range of 10 weight percent to 50 weight percent and wherein the electrically conductive filler is present at a level which is within the range of 0. 5 weight percent to 40 weight percent, based on the total weight of the polymeric composition.

US Patent:

20060270768, Nov 30, 2006

Filed:

May 31, 2005

Appl. No.:

11/141276

Inventors:

Jin Zhu - Medina OH, US
Nishant Negandhi - Medina OH, US

International Classification:

C08K 5/52

US Classification:

524143000

Abstract:

The invention relates to a flame retardant polycarbonate composition which is comprised of a polycarbonate, a phosphoric acid ester, a functionalized acrylic polymer, and an alkyl methacrylate-diene-vinyl aromatic terpolymer, wherein the polycarbonate is present in the composition in an amount of at least about 85 weight percent, wherein the phosphoric acid ester is present at a level which is within the range of about 1 weight percent to about 12 weight percent, wherein the functionalized acrylic polymer is present at a level which is within the range of about 0.5 weight percent to about 4.5 weight percent, and wherein the alkyl methacrylate-diene-vinyl aromatic terpolymer is present at a level which is within the range of about 0.5 weight percent to about 4.5 weight percent, with the proviso that the sum of the amount of the functionalized acrylic polymer and the alkyl methacrylate-diene-vinyl aromatic terpolymer present in the composition does not total more than 5 weight percent.