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1. (WO2010115783) ORGANOPOLYSILOXANE COMPOSITIONS AND THEIR PRODUCTION

Pub. No.:    WO/2010/115783    International Application No.:    PCT/EP2010/054221
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Wed Mar 31 01:59:59 CEST 2010
IPC: C08L 83/04
A61K 8/89
C08J 3/20
C09D 183/04
Applicants: DOW CORNING CORPORATION
DURAND, Beatrice
TONET, Giada
GIRBOUX, Anne-lise
DAVIO, Delphine
STAMMER, Andreas
Inventors: DURAND, Beatrice
TONET, Giada
GIRBOUX, Anne-lise
DAVIO, Delphine
STAMMER, Andreas
Title: ORGANOPOLYSILOXANE COMPOSITIONS AND THEIR PRODUCTION
Abstract:
This invention relates to the polymerization of organopolysiloxanes to form organopolysiloxanes of increased molecular weight and to the organopolysiloxane compositions thus produced. The organopolysiloxane is in admixture with a molten wax during the polymerization, thereby forming a blend of the wax with an organopolysiloxane of increased molecular weight. After the polymerisation reaction is completed, the reaction product can be cooled below the solidification temperature of the wax, for example down to room temperature. This yield a paste-like solid blend which is a very intimate dispersion of wax in organopolysiloxane or vice versa. The dispersion is surprisingly stable.