Organo-tin-containing complex stabilizer for synthetic resin compositions

US6001908A · kind A · utility

Assignee

• Akcros, Chemicals · GB

Inventors

• Peter Henne · Reichenbach, DE
• Volker Horn · Triebes, DE
• Peter Klass · Reichenbach, DE
• Gerard Hubert Frans Schmetz · Horn, NL
• Jack James Angus Orchison · Leigh, GB
• Malcolm Thomas John Mellor · Bolton, GB

Key dates

• Filing date: Jun 18, 1998
• Grant date: Dec 14, 1999
• Expiry date: Jun 18, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2002/22
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a organo-tin-containing complex stabilizer for synthetic resin compositions of the formula I: EQU M.sup.2+.sub.1-a-b(2+x) Al.sup.3+.sub.a [Sn(R).sub.(2-x) ].sub.b.sup.(2+x)+ (OH).sup.-.sub.2-b(2+x) A.sup.n-.sub.a/n *mH.sub.2 O (I) wherein M.sup.2+ stands for at least one divalent metal cation, R stands for a C.sub.1-12 linear or branched alkyl group, A.sup.n- stands for an n-valent anion or mixtures of anions, and the following conditions apply: EQU 0<a<0.5; 0<b<0.1; 0.ltoreq.x.ltoreq.1; 0<a+b(2+x)<0.5; 0.ltoreq.m.ltoreq.2. The invention also relates to a method for the preparation of these stabilizers and their use in synthetic resin compositions, preferably halogen-containing synthetic resin compositions, or (co)polymers obtained by Ziegler Natta polymerization processes.