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:
Sep. 12, 1989
Filed:
Dec. 19, 1988
Applicant:
Inventors:
Lawrence Y Lo, Lexington, MA (US);
Paul R Boulier, Leominster, MA (US);
Assignee:
Polysar Financial Services S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 67 ; 525 92 ;
Abstract
Blends of polycarbonates and a graft copolymer comprising a copolymer of a vinyl aromatic monomer and one or more C.sub.2-8 alkyl esters of C.sub.3-6 ethylenically unsaturated carboxylic acids and methyl methacrylate grafted on to a styrene butadiene or styrene isoprene block copolymer, have improved toughness and processability. The blends may be prepared using intensive mixing or by solution blending.