Shin-Etsu Chemical Co., Ltd.

Nippon Paint Compnay, Ltd.

Shinetsu Chemical Industries, Ltd.

Other

Shiseido Company, Limited

Yoshio Okamura

Mitsuhiro Takarada

Hiroshi Ohashi

Akihiro Kanakura

Hideyuki Itoh

Ryuzo Mizuguchi

Yoshio Eguchi

Shigeru Mori

Kenji Yamamoto

Hiroyasu Hara

Hirotoshi Umemoto

Hiroharu Ohsugi

Yoshikazu Soyama

Kouichi Tanaka

Nobuyuki Terae

Yoshiteru Kobayashi

Kimitaka Kumagae

Toshihide Ikeda

Yoshiyuki Ogusu

Tadashi Takahashi

Yoshihiko Ohsawa

Teruo Kurosaki

Tetsuo Okamoto

A highly stable emulsion of an organopolysiloxane suitable for use as a fabric-finishing agent is proposed which is prepared by mixing and agitating (a) an organopolysiloxane of a linear molecular structure having polyoxyalkylene groups and amino- or epoxy-substituted groups bonded to the silicon atoms, (b) a specified amount of a, preferably, non-ionic surface active agent having a specific HLB value and (c) water in an amount to form an oil-in-water type emulsion.

Method for the preparation of an aqueous emulsion of organopolysiloxane

A very effective method is proposed for the shrink-proof treatment of a fabric material of keratinous fibers, e.g., wool, in which the fabric material is first soaked with an aqueous solution of a persulfate compound followed by drying to effect surface oxidation of the fibers and then finished with a curable organopolysiloxane composition. Preferably, the curable organopolysiloxane composition comprises, as a dispersion in an aqueous medium, (A) an organopolysiloxane having hydroxyl or alkoxyl groups, (B) silica or an organopolysilsesquioxane in a finely divided form, (C) an alkoxy silane having an amido group and a carboxyl group in a molecule, (D) an alkoxy silane having an amino group or an epoxy group in a molecule, and (E) a curing catalyst, each in a specified proportion.

Method for shrink-proof treatment of fabric of keratinous fibers with

A solvent type nail enamel composition comprising (i) a silicone resin having the average composition formula (I):

Solvent type nail enamel composition

An organopolysiloxane containing at least one epoxy group is produced by heating a mixture of (a) an epoxy group-containing organosiloxane; (b) an organosiloxane lacking an epoxy group and optionally containing an arkenyl group; (c) an aprotic polar organic solvent; and (d) a basic catalyst, until reaction between (a) and (b) by a disproportionation equilibration reaction occurs.

Process for the production of an organopolysiloxane

The invention concerns a novel process for the preparation of poly(N-acylethyleneimine) grafted poysiloxanes comprising sulfoesterifying all or part of alcoholic hydroxyl groups of a hydroxy containing polysiloxane and conducting, in said sulfoesterification reaction mixture, ring-opening polymerization of a 2-oxazoline compound. The present process can afford the desired poly(N-acylethyleneimine) grafted polysiloxane in a higher reaction yield. The invention also provides novel poly(N-acylethyleneimine) grafted polysiloxanes.

Poly (N-acylethyleneimine) grafted polysiloxane and its preparation

A coating composition to form a coat on the surface of electrophotographic carrier which imparts excellent durability, moisture resistance and flowability to the carrier comprises:

Coating composition for electrophotographic carrier

A resinous composition for coating use comprising

Resinous composition for coating use

A silicone resin-mica laminate and a method of manufacturing the same made up of laminated mica consisting of at least two mica layers, each of which is covered on both sides by a silicone resin layer bonded thereto by a bonding layer produced from a mixture of an amino group-containing alkoxysilane compound and/or a hydrolyzed derivative thereof an epoxy group-containing organic silicon compound.

Silicone resin-mica laminate and method of manufacturing thereof

The invention concerns a novel process for the preparation of poly(N-acylethyleneimine) grafted polysiloxanes comprising sulfo-esterifying all or part of alcoholic hydroxyl groups of a hydroxy containing polysiloxane and conducting, in said sulfo-esterification reaction mixture, ring-opening polymerization of a 2-oxazoline compound. The present process can afford the desired poly(N-acylethyleneimine) grafted polysiloxane in a higher reaction yield.

Poly(N-acylethyleneimine) grafted polysiloxane and its preparation

A composition for coating glass fiber articles such as glass sleeve, glass cloth, glass roving, glass tape, glass mat or glass nonwoven fiber, comprising (a) a diorganopolysiloxane end-blocked with a divinylmonoorganosilyl or trivinylsilyl radical at both ends, (b) a sufficient amount of an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms per molecule to provide at least 0.5 silicon-bonded hydrogen atoms per vinyl radical in component (a), and (c) a catalytic amount of platinum or a platinum compound.

Glass fiber article-coating compositions

The invention provides a novel heat curable organopolysiloxane composition capable of giving a cured product having a remarkably high hardness and excellent anti-crack resistance. The cured product is also free from surface tackiness even by heat-curing in air. The main component of the composition is an organopolysiloxane having vinyl groups, phenyl groups and silicon-bonded hydrogen atoms simultaneously in a molecule or a mixture thereof with a second organopolysiloxane having vinyl groups and phenyl groups but no silicon-bonded hydrogen atoms in the molecule. It is essential that the molar ratios of the vinyl groups, phenyl groups, silicon-bonded hydrogen atoms and, if any, alkyl groups in the organopolysiloxane or organopolysiloxanes to the silicon atoms must be within specifically defined ranges and the organopolysiloxane component is admixed with a platinum catalyst for the addition reaction between the vinyl groups and the silicon-bonded hydrogen atoms as well as an organic peroxide such as dicumyl peroxide.

Growing community of inventors

Gunma, Japan

Yoshio Okamura