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:
Jun. 28, 1988
Filed:
Dec. 22, 1986
Applicant:
Inventor:
I-Chung W Wang, Clifton Park, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 64 ; 525 68 ;
Abstract
The impact strengths of linear polyesters such as poly(ethylene terephthalate) and poly(1,4-butylene terephthalate) are improved, particularly at low temperatures, by the incorporation therein of a core-shell impact modifier. The core therein is a crosslinked elastomeric polymer of at least one conjugated diene such as butadiene and has a volume average particle size in the range of about 90-700 nanometers. The grafted shell is a copolymer of at least one vinyl aromatic compound such as styrene and at least one polymerizable nitrile such as acrylonitrile.