Patent · US Expired

Stabilized polyvinyl chloride

US6136900A · kind A · utility

12Cited by

3References

17Claims

0Family size

Assignee

Witco Vinyl Additives GmbH · DE

Inventors

Karl-Josef Kuhn · Herbstein, DE
Wolfgang Wehner · Ober-Ramstadt, DE

Key dates

Filing date	Jul 23, 1998
Grant date	Oct 24, 2000
Priority date	—
Expiry date	Jul 23, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/3432
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a PVC composition comprising a stabilizer combination of (b) polyDHP of the formula I ##STR1## where the radicals T, L, R, R', R" are as defined in claim 1, (c) a subtance from the group consisting of crystalline hydrotalcites, crystalline or amorphous zeolites, crystalline or amorphous dawsonites, magadiites or kenyaites, disaccharide alcohols and sterically hindered amines containing the structural unit ##STR2## in which R.sup.0 is hydrogen or methyl, and (d) at least one zinc, aluminium or lanthanoid compound.

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