Shin-etsu Chemical Co., Ltd.

Shin-etsy Cgenucak Ci, M Ktd

Hiroyasu Hara

Hironao Fujiki

Masayuki Ikeno

Yoshifumi Inoue

Takashi Aketa

Kenichi Fukuda

Mikio Shiono

Hideki Sugahara

Toshiyuki Ozai

Tomoyuki Goto

Shinichi Sato

Hiroshi Inomata

Shigeki Shudo

Hiroshi Ohashi

Takehide Okami

Tadashi Araki

Nobuyuki Terae

Yoshio Okamura

Miyuki Tanaka

Hidenori Koshikawa

Takeshi Miyao

Toshiaki Takahashi

Akihito Tsukuno

Shinji Kimura

Tetsuo Okamoto

Kazuyasu Satoh

Provided is a condensation-reaction-curable silicone coating agent composition which contains, as a main component, a hydrolysable-group-containing organosiloxane mixture and also contains a curing catalyst, in which the hydrolysable-group-containing organosiloxane mixture contains an organotrisiloxane compound having a specified molecular structure in which there is at least one non-substituted, halogen-substituted or alkyl-substituted phenyl group in the molecule thereof and at least four hydrolysable groups are contained at molecule chain both ends thereof and an organodisiloxane compound having a specified structure in which there are at least two non-substituted, halogen-substituted or alkyl-substituted phenyl groups on one silicon atom in the molecule thereof and at least two hydrolysable groups are contained on the other silicon atom in the molecule thereof, and the organotrisiloxane compound and the organodisiloxane compound are contained in the hydrolysable-group-containing organosiloxane mixture at a specified blend ratio. The silicone coating agent composition has excellent storage stability although no organic solvent is contained, and can be cured rapidly at ambient temperature after being applied on a substrate to provide a cured coating film having excellent transparency, adhesiveness and the like, having excellent conformability to the shape of the substrate upon the bending of the substrate, and capable of preventing the corrosion of the substrate.

Silicone coating agent composition and article

A one-pack type curable silicone gel composition which contains: 100 parts by mass of (A) a branched chain organopolysiloxane having a specific structure from 0.1 part by mass to 50 parts by mass of (B) a diorganopolysiloxane having both molecular chain ends blocked with diorganohydrogensiloxy groups; (C) a platinum-based catalyst; and (D) a phosphite compound represented by formula (3) (wherein Rrepresents a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms; and X represents a hydrogen atom or a methyl group)

One-pack type curable silicone gel composition and cured silicone gel

A heat-curable fluoropolyether adhesive composition comprising (A) a linear polyfluoro compound having at least two alkenyl groups and a perfluoropolyether structure, (B) a fluorinated organohydrogensiloxane having at least two SiH groups, (C) a platinum group metal catalyst, (D) an organosiloxane having at least one SiH group and at least one epoxy and/or trialkoxysilyl group, and (E) a compound having at least two allyloxycarbonyl groups can be cured to metal and plastic substrates by heating at a temperature from 20&#xb0; C. to less than 100&#xb0; C.

Heat-curable fluoropolyether adhesive composition and bonding method

An addition cure silicone rubber adhesive composition comprising (A) an organopolysiloxane, (B) an inorganic filler, (C) an alkoxysilane, (D) a hydrolytic catalyst selected from titanium, zirconium and aluminum compounds, (E) an organohydrogenpolysiloxane, (F) a cure regulator, and (G) a platinum compound is prepared by mixing components (A), (B), (C) and (D), in the absence of component (G), at 0-200&#xb0; C. and a reduced pressure to form a premix, and thereafter, adding component (G) and the remaining components to the premix and mixing at 0-60&#xb0; C. and a reduced pressure.

Addition cure silicone rubber adhesive composition and making method

A silicone rubber composition containing 0.5-90% by weight of a metal powder and curable into a non-conductive silicone rubber having a volume resistivity of at least 1&#xd7;10&#x3a9;&#xb7;cm is useful for the sealing and encapsulation of electric and electronic parts because the metal powder is sulfided with a sulfur gas into a metal sulfide powder which prevents or retards the sulfur gas from reaching the electric and electronic parts.

Silicone rubber compositions for the sealing and encapsulation of electric and electronic parts

When an air bag is prepared by laying a pair of silicone rubber-impregnated and/or coated base fabric pieces one on the other, with the coated surfaces of the pieces inside, and joining peripheral portions of the pieces together to form a bag, an addition curable silicone rubber composition which is loaded with aluminum hydroxide powder and cures into a silicone rubber having an elongation at break of at least 1000% is used as a sealer and applied to the peripheral portions of the base fabric pieces, thereby achieving improved adhesion therebetween.

Air bag sealer silicone rubber composition

Curable perfluoropolyether rubber compositions are provided comprising (A) a linear perfluoropolyether compound containing at least two alkenyl groups and having a perfluoropolyether structure containing recurring units &#x2014;CFO&#x2014; in its backbone, (B) an organosilicon compound containing at least two SiH groups, (C) an inorganic powder capable of chemical and/or physical adsorption of acidic gases and/or sulfur-containing gases, and (D) a hydrosilylation catalyst. The compositions cure into rubber or gel products having minimal permeability to acidic gases and sulfur-containing gases.

Curable perfluoropolyether compositions and rubber or gel articles comprising the cured products of the compositions

When an air bag is prepared by laying a pair of silicone rubber-impregnated and/or coated base fabric pieces one on the other, with the coated surfaces of the pieces inside, and joining peripheral portions of the pieces together to form a bag, an addition reaction curing type silicone rubber composition which cures into a silicone rubber having an elongation at break of at least 1000% is used as a sealer and applied to the peripheral portions of the base fabric pieces, thereby achieving improved adhesion therebetween.

A conductive fluoro-resin composition of the addition reaction curing type is provided comprising (A) a reactive fluorinated polyether compound comprising fluorinated polyether units and having at least two aliphatic unsaturated hydrocarbon radicals in a molecule, (B) a compound having at least two hydrogen atoms each directly attached to a silicon atom, (C) a platinum group metal catalyst, and (D) silver particles. The composition cures into rubbery parts having improved heat resistance, weather resistance and solvent resistance and optionally forming firm bonds to various substrates.

Conductive fluoro-resin compositions

An organosilicon compound represented by the following general formula (1): wherein Ris a hydrogen atom, a phenyl group or a halogenated phenyl group; Ris a hydrogen atom or a methyl group; R's are each a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms; X is a hydrolyzable group; Zis &#x2014;R&#x2014;, &#x2014;RO&#x2014; or &#x2014;R(CH)SiO&#x2014;, where Ris a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; Zis an oxygen atom or a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; and m is 0, 1 or 2 and n is 0, 1 or 2. When incorporated in silicone compositions, the organosilicon compound acts as a cross-linking agent having well-balanced photopolymerizability and condensation curability.

Organosilicon compound

When silicone rubber-impregnated and/or coated fabric pieces are mated, with their treated surfaces inside, and joined along a periphery to form a bag, a silicone rubber composition having a tris(trialkoxysilylalkyl) isocyanurate blended as an adhesion promoter is used as a sealer where the peripheral portions of the fabric pieces are joined together whereby an improved bond is established therebetween.

An organosilicon compound represented by the following general formula (1):wherein Ris a hydrogen atom, a phenyl group or a halogenated phenyl group; Ris a hydrogen atom or a methyl group; R's are each a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms; X is a hydrolyzable group; Zis &#x2014;R&#x2014;, &#x2014;RO&#x2014; or &#x2014;R(CH)SiO&#x2014;, where Ris a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; Zis an oxygen atom or a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; and m is 0, 1 or 2 and n is 0, 1 or 2. When incorporated in silicone compositions, the organosilicon compound acts as a cross-linking agent having well-balanced photopolymerizability and condensation curability.

An addition reaction curing type silicone rubber composition comprising (A) an alkenyl-containing diorganopolysiloxane, (B) an alkaline earth metal carbonate powder surface treated with a diorganopolysiloxane, (C) an organohydrogenpolysiloxane, and (D) a platinum group metal catalyst has improved storage stability in that it gives off little or no hydrogen gas during storage. The composition has improved adhesion and a good ability to protect electric or electronic parts from corrosion and finds typical use in the sealing of electric or electronic parts.

Growing community of inventors

Gunma-ken, Japan

Hiroyasu Hara