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Hemant B Parikh, Age 731841 Parterre Ave, Lutz, FL 33558

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Known as:
Nisarg B Parikh Hermant B Parikh Hemant B Pariki Geeta Parikh
Related to:
Vimala I Patel 85

Hemant Parikh Phones & Addresses

Lutz, FL

14 Vaughn Ct, Millstone Twp, NJ 08535 (732) 738-6398

Millstone Township, NJ

60 William St, Fords, NJ 08863 (732) 738-6398

1536 41St St, North Bergen, NJ 07047 (201) 863-3008

1438 46Th St, North Bergen, NJ 07047 (201) 863-3008

Tampa, FL

Keasbey, NJ

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Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Mentions for Hemant B Parikh

Publications & IP owners

Us Patents

Process For The Preparation Of Vinylpyrrolidone/Vinyl Acetate Copolymers

US Patent:
5319041, Jun 7, 1994
Filed:
Mar 26, 1993
Appl. No.:
8/038723
Inventors:
Yuanzhen Zhong - Wayne NJ
Hemant Parikh - Harriman NY
Paul D. Taylor - West Milford NJ
Terry E. Smith - Murray KY
Assignee:
ISP Investments Inc. - Wilmington DE
International Classification:
C08F 200
C08F 206
C08F 434
C08F 404
C08F22610
C08F21808
US Classification:
526 73
Abstract:
This invention relates to an improved process for producing a clear solution of vinylpyrrolidone (VP) and vinyl acetate (VA) monomers which comprises, in an anhydrous system, (a) reacting a C. sub. 2 to C. sub. 3 alcoholic solution containing said VA monomer and between about 60 and about 80 wt. % portion of total VP monomer in the presence of between about 0. 05 and about 0. 3 wt. % of a free radical initiator selected from the group consisting of tertamylperoxy pivalate and 2,2-azobis(2-methylbutyronitrile) or a mixture thereof for a period of from about 5 to about 10 hours, at a temperature between about 60. degree. and about 110. degree. C. ; (b) gradually adding the remaining VP monomer in C. sub. 2 to C. sub. 3 alcohol solution at reaction temperature after the addition of the VA monomer is complete; (c) raising the temperature of the resulting reaction mixture to between about 110. degree. and about 150. degree. C.

Process For Providing Homogeneous Copolymers Of Vinylpyrrolidone And Vinyl Acetate Which Form Clear Aqueous Solutions Having A High Cloud Point

US Patent:
5395904, Mar 7, 1995
Filed:
Dec 7, 1993
Appl. No.:
8/163446
Inventors:
Yuanzhen Zhong - Wayne NJ
Hemant Parikh - Harriman NY
Terry E. Smith - Murray KY
Assignee:
ISP Investments Inc. - Wilmington DE
International Classification:
C08F22610
C08F21808
C08F 434
US Classification:
526264
Abstract:
A process for making homogeneous copolymers of vinylpyrrolidone (VP) and vinyl acetate (VA) which form clear aqueous solutions and have high cloud points. The process involves precharging VP and VA monomers in a predetermined ratio, and then feeding VP and VA at a predetermined rate, the ratio of the components in the initial charge and the feeding rates for the monomer being selected in accordance with the reactivity rates of the monomers towards copolymerization as opposed to homopolymerization.

Process For Increasing The Viscosity Of Aqueous Solutions Of Homogeneous Copolymers Of Vinyl Pyrrolidone And N-3, 3-Dimethylaminopropyl Methacrylamide

US Patent:
5844041, Dec 1, 1998
Filed:
Aug 13, 1997
Appl. No.:
8/910127
Inventors:
Lowell Ray Anderson - Morristown NJ
Hemant Parikh - Harriman NY
Assignee:
ISP Investments Inc. - Wilmington DE
International Classification:
C08L 3700
US Classification:
524548
Abstract:
A process is described for increasing the viscosity and high humidity curl retention of aqueous solutions of homogeneous copolymers of 20-99% vinyl pyrrolidone (VP) and 1-80% N-3,3-dimethylamino-propyl methacrylamide (DMAPMA). The high viscosity solutions are particularly useful as the active component of hair care products.

Possible Relatives

Deepali D Parikh  Devang M Parikh  Dipti N Parikh  Dolly P Parikh  Girish M Parikh  Jatin N Parikh  Jay D Parikh  Hemant Kumar  Hemant K Persaud  Hemant K Amin 

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