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. 16, 1985
Filed:
Dec. 16, 1982
Applicant:
Inventors:
Thomas J Dolce, Stirling, NJ (US);
Bheema R Vijayendran, Louisville, KY (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
2643282 ; 525176 ; 5283084 ;
Abstract
Disclosed are nucleating agents for polyethylene terephthalate molding compositions comprised of alkali metal salts of carboxylic acid-containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 5 to 50 percent by weight of polymerizable carboxylic acid monomers, up to 10 percent of a multifunctional crosslinking monomer and one or more carboxylfree relatively water insoluble polymerizable vinyl monomers.