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. 15, 2000
Filed:
Oct. 03, 1997
Applicant:
Inventors:
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C09K / ;
U.S. Cl.
CPC ...
524100 ; 524102 ; 524117 ; 524119 ; 524135 ; 524153 ; 25240024 ; 25240052 ;
Abstract
A homogeneous blended additive useful as a processing stabilizer for polymers which is a blend of Component (a), a defined phosphite or phosphonite; and Component (b) which is micronized zinc oxide. Component (b) is preferably in an amount of 5 to 10% based on the weight of component (a). This additive composition improves the resistance of phosphites and phosphonites against hydrolysis in the presence of moisture, by providing Component (b) as a hydrolysis stabilizer for Component (a).