Title:
FLAME-RETARDANT SILICONE RUBBER COMPOSITION
Document Type and Number:
Japanese Patent JP3452181
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a flame-retardant silicone rubber composition, showing no discoloration of the outer surface after being vulcanized with hot air at normal pressure and useful for, e.g. flame-retardant electric wires, by making the composition include a specific organopolysiloxane, organic peroxide and organic acid, titanium oxide, and platinum (or platinum-based compound) in specific ratios.
SOLUTION: This composition is composed of (A) 100 pts.wt. of an organopolysiloxane shown by the formula R1nSiO(4-n)/2 as the average compositional formula [R1 is a (substituted) monovalent hydrocarbon; and (n) is 1.98 to 2.02], (B) 0.5 to 50 pts.wt. titanium oxide of rutile type or the like, (C) 0.1 to 10 pts.wt. of an organic peroxide, e.g. p-methyl benozoyl peroxide or o-methyl benzoyl peroxide, shown by formula I [R is a monovalent hydrocarbon not substituted; and (n) is 1 to 3], (D) 0.1 to 5 pts.wt. of an organic acid shown by formula II [X is methyl, ethyl, propyl or a halogen; and (n) is 1 to 6], e.g. 2,4-dichlorobenzoate, and (E) platinum or a platinum-based compound at 1 to 1000 ppm, based on the component A.
Inventors:
Kazuma Momii
Yoshiaki Koike
Yoshiaki Koike
Application Number:
JP9967598A
Publication Date:
September 29, 2003
Filing Date:
April 10, 1998
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08K13/02; C08L83/04; (IPC1-7): C08L83/04; C08K13/02
Domestic Patent References:
| JP7118536A | ||||
| JP9188815A | ||||
| JP1067936A |
Attorney, Agent or Firm:
Kiyotaka Takita
Previous Patent: DOUBLE DRUM TYPE GRINDING AND RUBBING DEVICE
Next Patent: SIGNAL LAMP AND MOUNTING STRUCTURE THEREOF
Next Patent: SIGNAL LAMP AND MOUNTING STRUCTURE THEREOF