摘要:
A multi-component room-temperature-curable silicone rubber composition comprising at least: (A) a diorganopolysiloxane, (B) a methoxy group-containing silicon compound comprising a bis(methoxysilyl)alkane or a organotrimethoxysilane (except amino group containing organotrimethoxysilane) (B-1), a methoxy group-containing carbasilatrane derivative (B-2), and an aminoalkylmethoxysilane (B-3) (wherein the weight ratio of constituent (B-2) to constituent (B-3) is in the range of (20:80) to (80:20)); and (C) a curing catalyst,the composition being packaged as two or more separately stored compositions wherein none of said separately stored compositions contain all said components (A), (B), and (C) simultaneously.
摘要:
A multi-component room-temperature-curable silicone rubber composition comprising at least: (A) a diorganopolysiloxane, (B) a methoxy group-containing silicon compound comprising a bis(methoxysilyl)alkane or a organotrimethoxysilane (except amino group containing organotrimethoxysilane) (B-1), a methoxy group-containing carbasilatrane derivative (B-2), and an aminoalkylmethoxysilane (B-3) (wherein the weight ratio of constituent (B-2) to constituent (B-3) is in the range of (20:80) to (80:20)); and (C) a curing catalyst,the composition being packaged as two or more separately stored compositions wherein none of said separately stored compositions contain all said components (A), (B), and (C) simultaneously.
摘要:
An adhesive for silicone rubber, comprising at least the following: A 100 parts by weight of an organopolysiloxane having an average of two or more alkenyl groups per molecule; B an organopolysiloxane having an average of two or more silicon bonded hydrogen atoms in each molecule, used in an amount such that the molar ratio of silicon bonded hydrogen atoms in component B to alkenyl groups in component A at which the molar ratio of the silicon bonded hydrogen atoms in this component to the alkenyl groups in component A is from 0.01 to 20 (i.e. from 1:100 to 20:1); C from 5 to 200 parts by weight of calcium carbonate powder with a BET specific surface area of from 5 to 50 m2g; and D a platinum-based catalyst, used in an amount capable of inducing curing in the present composition.
摘要翻译:一种用于硅橡胶的粘合剂,至少包括以下物质:每分子平均具有两个或更多个链烯基的有机聚硅氧烷100重量份; B是每个分子中平均具有两个或更多个硅键合氢原子的有机聚硅氧烷,其用量使得组分B中与硅键合的氢原子与组分A中的链烯基的摩尔比,其中硅键合的 该组分中的氢原子与组分A中的链烯基的摩尔比为0.01至20(即1:100至20:1); C 5〜200重量份BET比表面积为5〜50m 2 / g的碳酸钙粉末; 和D为在本发明组合物中能够诱导固化的量的铂基催化剂。
摘要:
The present fluorosilicone rubber composition cures to give fluorosilicone rubber moldings with excellent physical properties. The fluorosilicone rubber composition comprises: (A) a 3,3,3-trifluoropropylmethylsiloxane-methylvinylsiloxane copolymer gum, (B) a dimethylsiloxane-methylvinylsiloxane copolymer gum, (C) a poly(3,3,3-trifluoropropylmethylsiloxane)-polydimethylsiloxane block copolymer or (C-2) a poly(3,3,3-trifluoropropylmethylsiloxane)-polydimethylsiloxane-polymethylvinylsiloxane block copolymer, (D) a reinforcing silica micropowder that has a surface area of at least 50 m.sup.2 /g, and (E) a curing agent.
摘要:
A curable organopolysiloxane composition that can form a cured product that is strongly adhesive to substrates such as glasses, plastics, and metals and exhibits a very durable adhesion in which adhesiveness is maintained even under severe conditions such as immersion in hot water. The curable organopolysiloxane composition comprises from 1 to 75 weight % of a calcium carbonate powder whose surface has been treated with both (a) a rosin or a rosin derivative and (b) a fatty acid or a fatty acid derivative.
摘要:
The present invention relates to a method for removing a silicone resin coating from a substrate comprising contacting the silicone resin coating with an aqueous alkali solution, wherein the silicone resin in the coating is a solid silicone resin having the formula (HR.sub.2 SiO.sub.1/2).sub.n (SiO.sub.4/2).sub.m, wherein R is an alkyl group, m is a number greater than 0, n is a number greater than 0, and n/m is greater than 0.2.
摘要:
The present invention relates to a release coating composition comprising an organopolysiloxane having fluorine containing organic groups and alkenyl groups, an organohydrogensiloxane, and a platinum-containing catalyst. The present invention also relates to a release coating composition comprising an organopolysiloxane having fluorine containing organic groups and silicon-bonded hydrogen groups, an alkenyl functional organopolysiloxane, and a platinum-containing catalyst. The curable silicone release coating compositions of this invention have excellent release properties from various tacky substances, especially silicone-based pressure sensitive adhesives, after curing, and also have excellent bonding characteristics when applied to various substrates.
摘要:
A method of inhibiting or reducing discoloration of a diorganopolysiloxane composition comprising the steps of mixing: said composition with the following components in any order: i) a source of ferrous ions; and ii) 0.0001-0.05 wt. % per total weight of the composition of a bis(2-pyridylthio-1-oxide) non-ferrous salt per total weight of the composition
摘要:
A hexenyl-containing silicone resin is disclosed which has the average unit formula (CH.sub.2 .dbd.CHC.sub.4 H.sub.8 Me.sub.2 SiO.sub.1/2).sub.n (SiO.sub.4/2).sub.m wherein Me denotes a methyl radical, n and m are each numbers larger than zero, and the ratio n/m is 0.2 to 3.
摘要翻译:公开了含有己烯基的硅氧烷树脂,其具有平均单元式(CH 2 = CHC 4 H 8 Me 2 SiO 1/2)n(SiO 4/2)m,其中Me表示甲基,n和m各自的数字大于零,并且比率n / m为0.2〜3。
摘要:
A method of inhibiting or reducing discoloration of a diorganopolysiloxane composition comprising the steps of mixing: said composition with the following components in any order: i) a source of ferrous ions; and ii) 0.0001-0.05 wt. % per total weight of the composition of a bis(2-pyridylthio-1-oxide) non-ferrous salt per total weight of the composition.