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. 16, 1996
Filed:
Mar. 10, 1995
Applicant:
Inventors:
George F Beekman, Middletown, OH (US);
Keith A Mesch, Cincinnati, OH (US);
Lionel R Price, Cincinnati, OH (US);
Assignee:
Morton International, Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524301 ; 556130 ;
Abstract
A zinc mercaptoacid ester of a polyhydric alcohol or ether, carboxylate, or ether-carboxylate thereof having at least one functional hydroxy group are improved heat stabilizers for halogen-containing polymer compositions. The phenomenon known as zinc burn during processing of such compositions is eliminated. Zinc bis-thioglycolates, zinc mercaptopropionates and zinc bis-mercaptosuccinates of glycols, glycerol, glycol ethers, glycol carboxylates, and glycerol carboyxlates exemplify the new class of heat stabilizers.