Stabilizer system for chlorine-containing polymers

US6084013A · kind A · utility

Assignee

• Witco Vinyl Additives GmbH · DE

Inventor

• Wolfgang Wehner · Ober-Ramstadt, DE

Key dates

• Filing date: Jan 15, 1999
• Grant date: Jul 4, 2000
• Expiry date: Jan 15, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/2227
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A description is given of stabilizer combinations comprising PA1 A) at least one compound of the formula I ##STR1## in which R.sub.1 and R.sub.2 independently of one another are C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.5 -C.sub.8 -cycloalkyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl-, C.sub.1 -C.sub.4 -alkoxy-, C.sub.5 -C.sub.8 -cycloalkyl or hydroxyl groups or chlorine atoms, or are C.sub.7 -C.sub.9 -phenylalkyl which is unsubstituted or substituted on the phenyl ring by 1 to 3 C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.5 -C.sub.8 -cycloalkyl or hydroxyl groups or chlorine atoms, and PA2 R.sub.1 and R.sub.2 can additionally be hydrogen, and PA2 Y is S or O, and PA1 B) at least one compound from the group of the calcium aluminum hydroxides and/or their hydrates and/or PA1 C) at least one compound from the group of the calcium aluminum hydrogen phosphites and/or their hydrates and/or PA1 D) at least one compound of the group of the aluminum hydroxides and/or their hydrates and/or PA1 E) at least one compound from the group of the calcium aluminum hydroxo (hydrogen) carbonates and/or their hydrates and/or PA1 F) at least o…