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:
Apr. 06, 2010
Filed:
Oct. 15, 2004
Applicants:
Scott Charles Schmidt, West Chester, PA (US);
Peter Anthony Callais, Collegeville, PA (US);
Noah Eliot Macy, Royersford, PA (US);
Olivier Guerrett, La Tour de Salvagny, FR;
Inventors:
Scott Charles Schmidt, West Chester, PA (US);
Peter Anthony Callais, Collegeville, PA (US);
Noah Eliot Macy, Royersford, PA (US);
Olivier Guerrett, La Tour de Salvagny, FR;
Assignee:
Arkema Inc., Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 145/16 (2006.01); C10M 145/14 (2006.01); C08F 8/14 (2006.01); C10L 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to acrylic block copolymers synthesized by a controlled radical process, and their use as thickeners in oil-based compositions. The acrylic copolymers are especially useful as viscosity index improvers in lubricating oil.