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James Parakka Phones & Addresses

  • 1150 Vermont Way, San Bruno, CA 94066
  • 403 Piccadilly Pl APT 5, San Bruno, CA 94066
  • Antioch, CA
  • 1607 Parkmoor Ave, San Jose, CA 95128
  • 7900 Janes Ave, Woodridge, IL 60517
  • Tuscaloosa, AL
  • San Mateo, CA

Resumes

Resumes

James Parakka Photo 1

James Parakka

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Location:
1150 Vermont Way, San Bruno, CA 94066
Industry:
Biotechnology
Work:
Moly Laboratories 2016 - 2017
Chief Consultant

Dsm 2015 - 2016
Senior Product Concept Manager

Dsm Apr 2013 - Jan 2015
R and D Manager, Ophthalmic Biomaterials

Dsm Jun 2011 - Apr 2013
Senior Staff Scientist

Dsm Biomedical B.v. 2008 - 2011
Staff Scientist
Education:
The University of Alabama 1988 - 1994
Doctorates, Doctor of Philosophy, Materials Science, Philosophy, Organic Chemistry
University of Mumbai 1986 - 1988
Master of Science, Masters, Chemistry
University of Mumbai 1980 - 1983
Bachelors, Bachelor of Science, Chemistry
Skills:
Polymers
R&D
Organic Chemistry
Nanotechnology
Chemistry
Life Sciences
Materials Science
Biomaterials
Coatings
Manufacturing
Product Development
Technology Transfer
Project Management
Product Innovation
External Relationships
Cross Functional Collaborations
Team Development
Continuous Improvement
Fmea
Psa
Technology Commercialization
Science
Cross Functional Team Leadership
Biotechnology
Research and Development
Interests:
Science and Technology
Education
Environment
Health
Languages:
English
German
Hindi
Certifications:
Pmp Silver
She (Safety Health and Environment) Leadership Experience (Shelex)
She (Safety Health and Environment) Leadership For Operational Managers
James Parakka Photo 2

James Parakka

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Location:
San Francisco Bay Area
Industry:
Biotechnology

Publications

Us Patents

Bis-Anthracenyl Chiroptical Compositions

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US Patent:
7679078, Mar 16, 2010
Filed:
Mar 10, 2005
Appl. No.:
11/078965
Inventors:
Robert R. Schumaker - San Jose CA, US
James Parakka - San Bruno CA, US
Assignee:
California Molecular Electronics Corporation - Huntsville AL
International Classification:
H01L 29/08
C07D 339/02
US Classification:
257 40, 549 89, 549510
Abstract:
Optoelectronic materials are provided that are bistable organic tautomeric compositions that intraconvert dithio or diseleno carbamate esters and cyclic 1,3-dithia- or -diselena-2-iminium salts of π-conjugated bis-anthracenyl compounds. Specifically disclosed are compounds having the formula:.

Control Of Polymer Surface Molecular Architecture Via Amphipathic Endgroups

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US Patent:
7884171, Feb 8, 2011
Filed:
Dec 15, 2009
Appl. No.:
12/638371
Inventors:
Robert S. Ward - Lafayette CA, US
Keith R. McCrea - Concord CA, US
Yuan Tian - Alameda CA, US
James P. Parakka - San Bruno CA, US
Assignee:
DSM IP Assets B.V. - Heerlen
International Classification:
C08G 18/00
C08G 77/04
C08G 77/22
US Classification:
528 44, 528 10, 528 25, 528 28, 528 34, 525453, 525459, 525460
Abstract:
Polymers whose surfaces are modified by endgroups that include amphipathic surface-modifying moieties. An amphipathic endgroup of a polymer molecule is an endgroup that contains at least two moieties of significantly differing composition, such that the amphipathic endgroup spontaneously rearranges its positioning in a polymer body to position the moiety on the surface of the body, depending upon the composition of the medium with which the body is in contact, when that re-positioning causes a reduction in interfacial energy. An example of an amphipathic surface-modifying endgroup is one that has both a hydrophobic moiety and a hydrophilic moiety in a single endgroup. For instance, a hydrophilic poly(ethylene oxide) terminated with a hydrophilic hydroxyl group is not surface active in air when the surface-modifying endgroup is bonded to a more hydrophobic base polymer. If the hydroxyl group on the oligomeric poly(ethylene oxide) is replaced by a hydrophobic methoxy ether terminus, the poly(ethylene oxide) becomes surface active in air, and allows the poly(ethylene oxide) groups to crystallize in the air-facing surface. In this example, immersion in water destroys the crystallinity as the poly(ethylene oxide) sorbs water and the hydrophobic methoxy group retreats below the surface of the polymer.

Pdms-Pvp Block Copolymers

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US Patent:
8153728, Apr 10, 2012
Filed:
Mar 13, 2008
Appl. No.:
12/531200
Inventors:
James Parakka - San Bruno CA, US
Keith R. McCrea - Concord CA, US
Robert S. Ward - Berkeley CA, US
Assignee:
DSM IP Assets B.V. - Heerlen
International Classification:
C08F 30/08
C08F 293/00
US Classification:
525100, 525421, 525451, 526263
Abstract:
Methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions. Also, amphipathic polydimethylsiloxane-PVP block copolymers, such as.

Pdms-Pvp Block Copolymers

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US Patent:
8344090, Jan 1, 2013
Filed:
Dec 14, 2011
Appl. No.:
13/325584
Inventors:
James Parakka - San Bruno CA, US
Keith R. McCrea - Concord CA, US
Robert S. Ward - Berkeley CA, US
Assignee:
DSM IP Assets B.V. - Heerlen
International Classification:
C08F 30/08
C08F 293/00
US Classification:
528100, 525103, 525474, 526279
Abstract:
Methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions. Also, amphipathic polydimethylsiloxane-PVP block copolymers, such as.

Control Of Polymer Surface Molecular Architecture Via Amphipathic Endgroups

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US Patent:
20050282997, Dec 22, 2005
Filed:
Aug 26, 2005
Appl. No.:
11/211734
Inventors:
Robert Ward - Lafayette CA, US
Keith McCrea - Concord CA, US
Yuan Tian - Alameda CA, US
James Parakka - San Bruno CA, US
International Classification:
C08G069/08
US Classification:
528403000
Abstract:
Polymers whose surfaces are modified by endgroups that include amphipathic surface-modifying moieties. An amphipathic endgroup of a polymer molecule is an endgroup that contains at least two moieties of significantly differing composition, such that the amphipathic endgroup spontaneously rearranges its positioning in a polymer body to position the moiety on the surface of the body, depending upon the composition of the medium with which the body is in contact, when that re-positioning causes a reduction in interfacial energy. An example of an amphipathic surface-modifying endgroup is one that has both a hydrophobic moiety and a hydrophilic moiety in a single endgroup. For instance, a hydrophilic poly(ethylene oxide) terminated with a hydrophilic hydroxyl group is not surface active in air when the surface-modifying endgroup is bonded to a more hydrophobic base polymer. If the hydroxyl group on the oligomeric poly(ethylene oxide) is replaced by a hydrophobic methoxy ether terminus, the poly(ethylene oxide) becomes surface active in air, and allows the poly(ethylene oxide) groups to crystallize in the air-facing surface. In this example, immersion in water destroys the crystallinity as the poly(ethylene oxide) sorbs water and the hydrophobic methoxy group retreats below the surface of the polymer. Also disclosed are methods and articles of manufacture that make use of these polymers.

Process For The Production Of (Trimethylsilyloxy)Silylalkylglycerol Methacrylates

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US Patent:
20060047134, Mar 2, 2006
Filed:
Aug 25, 2004
Appl. No.:
10/926425
Inventors:
Frank Molock - Orange Park FL, US
Shivkumar Mahadevan - Orange Park FL, US
Robert Ward - Lafayette CA, US
Shanger Wang - Fairfield CA, US
James Parakka - San Bruno CA, US
Yuan Tian - Alameda CA, US
International Classification:
C07F 7/04
US Classification:
556446000
Abstract:
The present invention relates to a process comprising the steps of reacting in the presence of a hydrosilylation catalyst, a first reaction mixture comprising a free radical reactive compound and a silicon containing compound to form a silicon substituted glyceryl (meth)acrylate.

Process For The Production Of Monodisperse And Narrow Disperse Monofunctional Silicones

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US Patent:
20060229423, Oct 12, 2006
Filed:
Mar 16, 2006
Appl. No.:
11/377822
Inventors:
James Parakka - San Bruno CA, US
Yuan Tian - Alameda CA, US
Robert Ward - Lafayette CA, US
Wang Shanger - Fairfield CA, US
International Classification:
C08G 77/06
US Classification:
528037000, 528031000, 528025000, 528014000, 528034000
Abstract:
Synthesis and purification of mono and narrow disperse monofunctional polydimethylsiloxane methacrylate derivatives with different molecular weights are disclosed.

Process For The Production Of (Trimethylsilyloxy)Silylalkylglycerol Methacrylates

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US Patent:
20070265460, Nov 15, 2007
Filed:
Jul 25, 2007
Appl. No.:
11/782727
Inventors:
Shivkumar Mahadevan - Orange Park FL, US
Robert Ward - Lafayette CA, US
Shanger Wang - Fairfield CA, US
James Parakka - San Bruno CA, US
Yuan Tian - Alameda CA, US
Frank Molock - Orange Park FL, US
International Classification:
C07F 7/08
US Classification:
556467000
Abstract:
The present invention relates to a process comprising the steps of reacting in the presence of a hydrosilylation catalyst, a first reaction mixture comprising a free radical reactive compound and a silicon containing compound to form a silicon substituted glyceryl (meth)acrylate.
James P Parakka from San Bruno, CA, age ~61 Get Report