The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2007
Filed:
Nov. 03, 2004
Applicants:
Sheng Hong, Norristown, PA (US);
Rosangela Pirri, Montardon, FR;
Brian Edgecombe, Hopewell, NJ (US);
Inventors:
Sheng Hong, Norristown, PA (US);
Rosangela Pirri, Montardon, FR;
Brian Edgecombe, Hopewell, NJ (US);
Assignee:
Arkema Inc., Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/50 (2006.01); B01J 13/03 (2006.01); B32B 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to core-shell polymers having a hydrophilic copolymer shell, and a high level of core material of from 75 to 95 weight percent. The hydrophilic shell provides better coverage of the core resulting in better powder properties such as anti-blocking. The hydrophilic shell also allows for a thinner shell and a larger elastomeric core. Core-shell polymers of the invention are especially useful as impact modifiers for plastic materials.