Title:
SOFT SILICONE ELASTOMER
Document Type and Number:
Japanese Patent JPS6333475
Kind Code:
A
Abstract:
A curable mixture for preparing soft silicone elastomers having low exudation properties comprises: (a) 100 parts by weight of a vinyl-containing base polymer of the formula in which R and R' are alkyl having 1 to 8 carbon atoms, aryl having 3 to 8 carbon atoms, vinyl having 3 to 8 carbon atoms, and fluoroalkyl having 3 to 8 carbon atoms, with the proviso that said base polymer contains a statistical average of 0.5 to 1.8 vinyl groups per molecule, and x is a sufficiently large number that the viscosity of the polymer is between 0.1 and 300,000 Pascal-seconds at 20 DEG C., (b) 0.1 to 50 parts by weight of an organohydrogensiloxane of the formula wherein R'' is an alkyl having 1 to 8 carbon atoms, aryl having 3 to 8 carbon atoms or fluoralkyl having 3 to 8 carbon atoms, m is at least 3, and the sum of n and m is a sufficiently large number that said siloxane has a viscosity of 0.005 to 0.1 Pascal-seconds at 25 DEG C., (c) 1 to 250 ppm of a platinum catalyst, and (d) 0 to 200 parts by weight of filler.
Inventors:
DEIITAA BUROBERU
Application Number:
JP17924387A
Publication Date:
February 13, 1988
Filing Date:
July 20, 1987
Export Citation:
Assignee:
BAYER AG
International Classes:
C08K3/36; C08L83/04; C08L83/05; C08L83/07; (IPC1-7): C08L83/05; C08L83/07
Domestic Patent References:
| JPS52144053A | 1977-12-01 | |||
| JPS56143241A | 1981-11-07 | |||
| JPS57149354A | 1982-09-14 | |||
| JPS58225152A | 1983-12-27 | |||
| JPS587451A | 1983-01-17 | |||
| JPS5744659A | 1982-03-13 | |||
| JPS6239658A | 1987-02-20 |
Attorney, Agent or Firm:
Heikichi Odashima
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