Rigid PVC stabilised with N,N-dimethyl-6-aminouracils

US5859100A · kind A · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Wolfgang Wehner · Ober-Ramstadt, DE
• Hans-Helmut Friedrich · Herbstein, DE
• Rolf Drewes · Bad Bellingen, DE
• Kornelia Malzacher · Lindenfels, DE

Key dates

• Filing date: Sep 22, 1997
• Grant date: Jan 12, 1999
• Expiry date: Sep 22, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/3462
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions are described, comprising PA1 A) rigid or semi-rigid PVC having a plasticiser content of up to 20%, and PA1 B) at least one compound of formula 1, ##STR1## wherein X is O or S, and R is H or phenyl, with the proviso that compounds from the groups of the perchlorate compounds, glycidyl compounds, beta-diketones, beta-keto esters, dihydropyridines, polydihydro-pyridines, polyols, disaccharide alcohols, sterically hindered amines (tetraalkylpiperidine compounds), alkali alumosilicates (zeolites), hydrotalcites, alkali alumocarbonates (dawsonites) are not present.