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:
Nov. 05, 1991
Filed:
Jul. 03, 1990
Applicant:
Inventors:
Robert A Wanat, Langhorne, PA (US);
Charles C Crabb, Mt. Laurel, NJ (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08F / ;
U.S. Cl.
CPC ...
523201 ; 525 85 ; 528487 ;
Abstract
Plastics prepared from blends of polymers of methyl methacrylate with heterogeneous core/shell polymers having an poly(alkyl acrylate) core and a poly(alkyl methacrylate)shell exhibit improved color when the heterogeneous core/shell polymer is treated with a reducing agent.