Title:
SILICONE RUBBER COMPOSITION FOR HIGH-VOLTAGE ELECTRICAL INSULATING MATERIAL
Document Type and Number:
Japanese Patent JP3246385
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a silicon rubber composition excellent in high-voltage electrical insulating properties such as weather resistance, stain resistance and voltage endurance, by adding an inorganic filler and titanium oxide powder for photocatalyst to a specific organopolysiloxane.
SOLUTION: This composition contains (A) 100 pts.wt. of an organic peroxide curing type or addition reaction curing type organopolysiloxane, (B) 1-500 pts.wt. of an inorganic filler and (C) 10-100 pts.wt. of titanium oxide powder for photocatalyst having ≤0.3μm average particle diameter and a crystal unit lattice of anatase type. Preferably, the component B is selected from among aluminum hydroxide, ground quartz and spherical fused silica and the component A of the organic peroxide curing type consists essentially of an organopolysiloxane of the formula [R1 is a (substituted) monofunctional hydrocarbon with the proviso that 0.01-20mol% of R1 is an alkenyl; (a) is positive number of 1.9-2.4] containing at least ≥2 alkenyl groups on the average and a catalytic amount of an organic peroxide.
Inventors:
Hidekazu Azechi
Takeo Yoshida
Takeo Yoshida
Application Number:
JP6535197A
Publication Date:
January 15, 2002
Filing Date:
March 04, 1997
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08K3/00; C08K3/22; C08K5/14; C08L83/05; C08L83/07; (IPC1-7): C08L83/07; C08K3/00; C08K3/22; C08K5/14; C08L83/05
Domestic Patent References:
| JP9227779A |
Attorney, Agent or Firm:
Takashi Kojima (1 person outside)