Silicone adhesive composition and an adhesive tape thereof
AssigneeShin-Etsu Chemical Co., Ltd.
InventorShunji Aoki
Life of this patent
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Abstract
A peroxide curable silicon adhesive composition comprising a diorganopolysiloxane (A), a polyorganosiloxane (B) comprising R13SiO0.5 unit and SiO2 unit in a molar ratio of the R13SiO0.5 unit to the SiO2 unit of from 0.6 to 1.7, a hindered amine compound (C), and an organic peroxide (D), and an adhesive tape thereof are provided. Also provided are an addition-reactive silicon adhesive composition comprising a diorganopolysiloxane (A′) having 2 or more alkenyl groups, a polyorganosiloxane (B), a hindered amine compound (C), a polyorganosiloxane (E) having SiH group, a retarder (F), and a platinum catalyst (G), and an adhesive tape thereof.
Claims13
A peroxide curable silicon adhesive composition comprising
- 20 to 80 parts by weight of a diorganopolysiloxane (A),
- 80 to 20 parts by weight of a polyorganosiloxane (B) comprising R13SiO0.5 unit and SiO2 unit in a molar ratio of the R13SiO0.5 unit to the SiO2 unit of from 0.6 to 1.0, wherein R1 is a monovalent hydrocarbon group having 1 to 10 carbon atoms,
- 0.01 to 1.0 part by weight, based on a total of (A) and (B) of 100 parts by weight, of a hindered amine compound (C) having the moiety represented by the following formula
- wherein R is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and
- 0.1 to 5.0 parts by weight, based on a total of (A) and (B) of 100 parts by weight, of an organic peroxide (D).
An addition-reactive silicon adhesive composition comprising
- 20 to 80 parts by weight of a diorganopolysiloxane (A′), having 2 or more alkenyl groups,
- 80 to 20 parts by weight of a polyorganosiloxane (B) comprising R13SiO0.5 unit and SiO2 unit in a molar ratio of the R13SiO0.5 unit to the SiO2 unit of from 0.6 to 1.0, wherein R1 is a monovalent hydrocarbon group having 1 to 10 carbon atoms,
- 0.01 to 1.0 part by weight, based on a total of (A′) and (B) of 100 parts by weight, of a hindered amine compound (C) having the moiety represented by the following formula,
- wherein R is a monovalent hydrocarbon group having 1 to 6 carbon atoms,
- a polyorganosiloxane (E)having SiH group in such an amount that a molar ratio of the SiH group to the alkenyl group of the component(A′) ranges from 0.5 to 20,
- 0 to 8.0 part by weight, based on a total of (A′) and (B) of 100 parts by weight, of a retarder (F), and
- a platinum catalyst (G) in such an amount that an amount as platinum ranges from 1 to 5000 ppm based on a total of (A′) and (B) of 100 parts by weight.
Dependencies are inferred from the claim text.