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:
Aug. 14, 1990
Filed:
Dec. 01, 1988
Applicant:
Inventor:
Morton L Wallach, Leominster, MA (US);
Assignee:
Polysar Financial Services S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
524112 ; 524494 ; 524504 ; 524505 ; 524513 ; 524605 ;
Abstract
Solid anhydrides of carboxylic acids, which anhydrides have a melting temperature of at least 100.degree. C. and a boiling temperature of at least 230.degree. C. at STP are suitable for use in nucleating systems for polyester compositions. Such nucleating systems reduce (i) mold cycle time (ii) mold temperature and (iii) the sensitivity of the composition to water during molding.