Basic calcium aluminum hydroxide dicarboxylates, a process for their production and their use

US5312941A · kind A · utility

Assignee

• Barlocher GmbH · DE

Inventors

• Coriolan Razvan · Munich, DE
• Reinhard Beck · Munich, DE
• Alfred Kurzinger · Karlsfeld, DE
• Michael Rosenthal · Redwood City, US
• Albert W. Purzer · Munich, DE

Key dates

• Filing date: Aug 6, 1993
• Grant date: May 17, 1994
• Expiry date: Aug 6, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/098
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention describes basic calcium aluminum hydroxide dicarboxylates of the general formula EQU Ca.sub.x Al.sub.2 (OH).sub.2(x+3-y) A.sub.y .multidot.m H.sub.2 O wherein PA0 x means 2 to 12, ##EQU1## m means 0 to 12, and A means an aliphatic, aromatic or heteroaromatic dicarboxylic acid anion or combinations thereof, PA0 with the proviso that y.noteq. 1, if x= 2-8 and a process for their production. The compounds according to the invention are particularly suited as stabilizers for halogen-containing thermoplastic resins, in particular PVC.