Polysiloxane compound which is stable during storage and produces vulcanisates which can be permanently wetted with water

US6239244A · kind A · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Michael Stepp · Braunau am Inn, AT
• Johann Bindl · Burghausen, DE
• Gerhard Kreis · Burghausen, DE
• Arnold Garhammer · Simbach, DE

Key dates

• Filing date: Sep 13, 1999
• Grant date: May 29, 2001
• Expiry date: Sep 13, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/20
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention concerns polysiloxane compounds which contain the following components: 1. organopolysiloxane with at least two aliphatic double bonds in the molecule; 2 organopolysiloxane with at least two Si--H groups in the molecule; 3. noble metal catalyst; and 4. hydrophilic modifier of general formula (I) [H.sub.2 C.dbd.CH--A.sup.1 --(A.sup.2).sub.m --X].sub.n B (I), in which A.sup.1, A.sup.2, X, B, m and n have the meanings given in claim 1. The polysiloxane compounds are stable during storage and are used as dental casting compounds.