Title: Dimensionally stable impression composition
Application Number: 85103647 Application Date: 1985.05.20
Publication Number: 1005075 Publication Date: 1986.11.19
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08J3/24,C08K5/54,C08L83/04
Applicant(s) Name: Bayer Ag (DE) 5090 Leverkusen 12, F.R.G. Address:
Inventor(s) Name: Gottfried Knispel, Ottfried Schlak, Peter Schwabe
Attorney & Agent: WU XIAONAN LI LUOYING
Abstract:
     In a silicone impression and duplicating composition which undergoes crosslinking at ambient temp. by an addition reaction, comprising (a) an organopplysiloxane possessing two or more vinyl groups in the molecule, (b) optionally an organopolysiloxane without reactive groups, (c) an organopolysiloxane possessing two or more Si-H groups in the molecule, (d) a catlayst, (e) a filler and, (f) optionally an auxiliary and/or colorant, the improvement wherein polysiloxane components (a)-(c) contain not more than about 1.5% by wt. of volatile oligomers, whereby the dimensional stability of impressions is improved.
Time: 4
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