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:
Jul. 25, 1989
Filed:
Sep. 29, 1987
Mahmoud R Rifi, Kendall Park, NJ (US);
Union Carbide Corporation, Danbury, CT (US);
Abstract
A process for reducing the odor of isotactic polypropylene containing an odor producing unsubstituted or substituted benzoic acid ester by admixing molten isotactic polypropylene with a compound capable of undergoing transesterification with the odor producing ester, said transesterification compound being (i) a partially esterified glycerol; (ii) an expoxide; (iii) a monofunctional or polyfunctional alcohol; (iv) an aliphatic acid ester; or (v) mixtures thereof wherein the transesterification compound is of such functionality and/or of sufficient molecular weight to yield an ester of a molecular weight of at least about 300 upon undergoing ester interchange with said odor causing benzoic acid ester.