Lifeng Zhang, Age 49Horsham, PA
Lifeng Zhang Phones & Addresses
Horsham, PA
Philadelphia, PA
Wyncote, PA
East Meadow, NY
Pottstown, PA
New York, NY
Aston, PA
Mentions for Lifeng Zhang
Publications & IP owners
Us Patents
Nonionic Associative Thickener Containing Condensation Polymer Backbone
US Patent:
7432325, Oct 7, 2008
Filed:
Nov 15, 2004
Appl. No.:
10/989202
Inventors:
Robert Mitchell Blankenship - Harleysville PA, US
Barrett Richard Bobsein - Sellersville PA, US
Lifeng Zhang - Chalfont PA, US
Barrett Richard Bobsein - Sellersville PA, US
Lifeng Zhang - Chalfont PA, US
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C08L 75/00
US Classification:
524589, 524500, 528 44, 528421
Abstract:
Nonionic associative thickeners are provided having a nonionic water soluble polymer backbone with at least two pendant polymeric chains attached to the nonionic water soluble polymer backbone. The pendant polymeric chains have terminal chain segments containing polyoxyalkylene units comprising 3 to 6 carbon atoms. The nonionic associative thickeners are useful for modifying the rheology of compositions including aqueous compositions, such as latex containing compositions.
Nonionic Associative Thickener Containing Vinyl Addition Polymer Backbone
US Patent:
7449440, Nov 11, 2008
Filed:
Mar 11, 2005
Appl. No.:
11/077685
Inventors:
Robert Mitchell Blankenship - Harleysville PA, US
Barrett Richard Bobsein - Sellersville PA, US
Lifeng Zhang - Chalfont PA, US
Barrett Richard Bobsein - Sellersville PA, US
Lifeng Zhang - Chalfont PA, US
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C11D 3/37
C08G 67/00
C08G 67/00
US Classification:
510475, 510419, 510421, 510505, 528392, 524804, 106 3113, 106 3158
Abstract:
Nonionic associative thickeners are provided having a nonionic water soluble polymer backbone containing vinyl addition polymer. The nonionic water soluble polymer backbone has at least two pendant polymeric chains attached to the nonionic water soluble polymer backbone. The pendant polymeric chains have terminal chain segments containing polyoxypropylene units. The nonionic associative thickeners are useful for modifying the rheology of compositions including aqueous compositions, such as latex containing compositions.
Associative Thickener Compositions And Methods Of Use
US Patent:
7803864, Sep 28, 2010
Filed:
Dec 13, 2006
Appl. No.:
11/638214
Inventors:
Barrett Richard Bobsein - Sellersville PA, US
Melissa Merlau Johnson - Ambler PA, US
Lifeng Zhang - Clifton Park NY, US
Melissa Merlau Johnson - Ambler PA, US
Lifeng Zhang - Clifton Park NY, US
Assignee:
Rohm and Haas Company - Phila. PA
International Classification:
C08L 75/04
C08L 71/02
C08L 101/14
C08L 71/02
C08L 101/14
US Classification:
524501, 524222, 524227, 524802
Abstract:
A method for improving the viscosity stability of an aqueous composition having a latex polymer and associative thickeners with at least one hydrophilic segment and at least two hydrophobic segments is provided. The associative thickeners are chosen such that one associative thickener has a lower molecular weight than the other associative thickener.
Method For Improving Viscosity Of Thickeners For Aqueous Systems
US Patent:
8523993, Sep 3, 2013
Filed:
Oct 2, 2003
Appl. No.:
10/677436
Inventors:
Lifeng Zhang - Chalfont PA, US
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C08L 5/16
C08L 61/26
C08L 61/32
C08B 37/16
C09D 105/16
C09D 161/32
C08L 61/26
C08L 61/32
C08B 37/16
C09D 105/16
C09D 161/32
US Classification:
1061621, 1062061, 524 48
Abstract:
A composition for a reduced viscosity hydrophobic thickener system for thickening a polymer-containing aqueous system, a method for providing a reduced viscosity thickener system for a polymer-containing aqueous system, and a method for increasing the viscosity of a polymer-containing aqueous system are disclosed.
Polymer Additives For Pressure-Sensitive Adhesives
US Patent:
2020039, Dec 17, 2020
Filed:
Jun 13, 2019
Appl. No.:
16/440450
Inventors:
- Hatfield PA, US
Huili LUO - Nanjing, CN
Lifeng ZHANG - Lansdale PA, US
Jiaqian NI - Wynnewood PA, US
Joshua CHONG - Lansdale PA, US
Huili LUO - Nanjing, CN
Lifeng ZHANG - Lansdale PA, US
Jiaqian NI - Wynnewood PA, US
Joshua CHONG - Lansdale PA, US
Assignee:
ChemHost Inc. - Hatfield PA
PennAdditives, LLC - Nanjing
PennAdditives, LLC - Nanjing
International Classification:
C09J 11/08
C09J 7/38
C08F 220/18
C08F 220/34
C08F 220/60
C08F 220/04
C08F 212/04
C09J 7/38
C08F 220/18
C08F 220/34
C08F 220/60
C08F 220/04
C08F 212/04
Abstract:
Core-shell copolymers are described, along with methods of making same, which provide improved adhesion and cohesion when used as additives in pressure sensitive adhesives. The core-shell polymers contain copolymers with ureido functionality in the shell region only, while the core region is substantially free of ureido functionality.
System And Method Of Cytomic Vascular Health Profiling
US Patent:
2014035, Dec 4, 2014
Filed:
Jun 10, 2012
Appl. No.:
14/123920
Inventors:
Jonni S. Moore - Philadelphia PA, US
Lifeng Zhang - Voorhees NJ, US
Wade Rogers - West Chester PA, US
Andrew D. Bantly - Philadelphia PA, US
Lifeng Zhang - Voorhees NJ, US
Wade Rogers - West Chester PA, US
Andrew D. Bantly - Philadelphia PA, US
Assignee:
The Trustees of the University of Pennsylvania - Philadelphia PA
International Classification:
G01N 33/68
US Classification:
506 9, 435 29, 435 792, 435 721
Abstract:
The present invention relates to a method of determining vascular health in a subject. The method includes the steps of obtaining a biological sample from the subject, obtaining microparticle data based on the level of at least one set of microparticles in the biological sample, obtaining progenitor cell data based on the level of at least one set of progenitor cells in the biological sample, generating a cytometric fingerprint of the biological sample based on the microparticle and progenitor cell data, and determining the vascular health of the subject based on the generated cytometric fingerprint.
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