Electrically conductive silicone compositions
First Claim
1. An electrically conductive silicone composition comprising:
- (A) at least one organopolysiloxane containing at least two alkenyl groups per molecule;
(B) at least one organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule;
(C) a platinum group metal-containing catalyst;
(D) at least one electrically conductive metal particulate;
(E) precrosslinked elastomeric silicone particles; and
(F) at least one non-reactive volatile compatible diluent.
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Abstract
The present invention relates to electrically conductive silicone compositions comprising an organopolysiloxane containing at least two alkenyl groups per molecule, an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, a platinum group metal containing catalyst, a conductive metal particulate, a precrosslinked elastomeric silicone particle, and a non-reactive volatile diluent. The electrically conductive silicone compositions of this invention are useful as electrically conductive adhesives and coatings for electrical and electronic devices. The cured electrically conductive silicone compositions of this invention have high electroconductivity and rubbery elasticity.
89 Citations
29 Claims
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1. An electrically conductive silicone composition comprising:
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(A) at least one organopolysiloxane containing at least two alkenyl groups per molecule; (B) at least one organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) a platinum group metal-containing catalyst; (D) at least one electrically conductive metal particulate; (E) precrosslinked elastomeric silicone particles; and (F) at least one non-reactive volatile compatible diluent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An electrically conductive silicone composition obtained by a method comprising reacting a mixture comprising:
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(A) at least one organopolysiloxane containing at least two alkenyl groups per molecule; (B) at least one organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) a platinum group metal-containing catalyst; (D) an electrically conductive metal particulate; (E) a precrosslinked elastomeric silicone particle; and (F) a non-reactive volatile compatible diluent. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. An article of manufacture obtained by a method comprising
(I) applying an electrically conductive silicone composition on the surface of a substrate wherein the electrically conductive silicone composition comprises: -
(A) at least one organopolysiloxane containing at least two alkenyl groups per molecule; (B) at least one organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) a platinum group metal-containing catalyst; (D) an electrically conductive metal particulate; (E) a precrosslinked elastomeric silicone particle; and (F) a none-reactive volatile compatible diluent. - View Dependent Claims (29)
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Specification