Patent · US Expired

Processing stabilizer composition

US6103796A · kind A · utility

18Cited by

3References

4Claims

0Family size

Assignee

Clariant Finance (BVI) Limited · VG

Inventors

Peter Staniek · Binzen, DE
Klaus Stoll · Binzen, DE
Rainer Wolf · Allschwil, CH

Key dates

Filing date	Oct 3, 1997
Grant date	Aug 15, 2000
Priority date	—
Expiry date	Oct 3, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/5393
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.