Kanegafuchi Chemical Industry Co., Ltd.

Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Takahisa Iwahara

Katsuhiko Isayama

Kazuya Yonezawa

Toshifumi Hirose

Robert C West

Fumio Kawakubo

Tomoko Takahara

Makoto Chiba

Jun Kotani

Manabu Tsumura

Hiroshi Wakabayashi

Sadao Yukimoto

Koji Noda

Miyako Takanoo

Tetsu Katsutani

Kiyoshi Andoh

Makato Chiba

Masafumi Hiraishi

A silicon-containing polymer comprising a structural unit of the formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a monovalent organic group having 1 to 20 carbon atoms, and the benzene ring may have a substituent, which has good heat resistance.

Silicon-containing polymer, process for preparing the same and monomer

A curable composition providing a cured product having a silicon type interpenetrating polymer network, which comprises (A) a silsesquioxane ladder polymer, (B) a silicon compound having at least two SiH groups per molecule, (C) a silicon compound having at least two vinylsilyl groups per molecule and (D) a neutral platinum catalyst; and a process for producing a molded article comprising heating the curable composition under a controlled temperature for synchronously causing hydrolysis and condensation of the alkoxysilyl group and/or silanol group and hydrosilylation.

Curable composition and process for producing molded articles using the

Curable organic polymers containing hydrosilyl groups

A curable composition which comprises (C) a non-polymeric organic curing agent having at least two hydrosilyl groups in a molecule, (D) an organic polymer having at least one alkenyl group in a molecule, and (E) a hydrosilylation catalyst has rapid curability and good depth curability, and gives a homogeneous cured material having good mechanical properties.

Curing agent, preparation thereof and curable composition comprising the

A curable composition containing (A) a compound having at least two Si--H bonds, (B) a silicon compound having at least two substituents bonded to the silicon atom thereof, wherein the substituents each have an olefin bond, (C) a neutral platinum catalyst, (D) a silicon compound having at least two alkoxy groups bonded to the silicon atom thereof, and (E) a catalyst for silanol condensation.

Curable composition

A condensed bicyclic disilanylene-acetylene compound having the following formula: ##STR1## wherein R and R' are independently a univalent hydrocarbon group having 1 to 20 carbon atoms. The compound has a high degree of .sigma.-.pi. electron delocalization.

Condensed bicyclic disilanylene-acetylene compound and method for

1,2-Dichlorodisilanes are reacted with organometallic derivatives of 1,2-diethynyldisilane to yield the copolymer:

Ethynylene-disilanylene copolymers and method of preparing same

An isobutylene polymer having at least one silicon-containing group cross-linkable by the formation of a siloxane bond. The isobutylene polymer is a novel polymer curable at ordinary temperature and has not only excellent weatherability, water-resistance and heat-resistance but also excellent electric isolation and gas impermeability.

Curable isobutylene polymer

1,2-dichlorodisilanes are reacted with the diGrignard reagents of 1,2-diethynyldisilane to yield the eight-membered ring disilanylene acetylenes of the formula: ##STR1## where R=an alkyl group, and R'=an alkyl group or an aromatic group.

Method of preparing cyclic disilanylene-acetylenes

A moisture curable polymer composition comprising (A) an organic polymer having at least one reactive silicone group in a molecule and (B) a compound having one silanol group in a molecule and/or a compound which reacts with water or moisture to form a compound having one silanol group in a molecule, which is cured with moisture to give an elastomeric material with improved tensile properties and surface characteristics.

Curable polymer composition

A stabilizer useful for inhibiting polymerization of .gamma.-acryloyloxypropyltrimethoxysilane and .gamma.-methacryloyloxypropyltrimethoxysilane comprising 2,5-di-t-butylhydroquinone and an alcohol.

Stabilizer for acryloyloxysilane compounds

A curable resinous composition comprising:

Curable resinous composition comprising epoxy resin and

A curable composition comprising (A) a phenol resin and (B) 1 to 200 parts by weight of, per 100 parts by weight of the phenol resin, a polyether having at least one silicon-containing reactive group, which provides a cured product having improved properties such as flexibility, impact resistance, toughness, peeling strength and tensile strength.

Curable composition of phenolic resin and polyether containing silicone

A process for stabilizing a silicon-containing methacrylate having the formula (I): ##STR1## wherein X is Si(OCH.sub.3).sub.3, Si(OCH.sub.3).sub.2 CH.sub.3, Si(OCH.sub.3)(CH.sub.3).sub.2 or Si(CH.sub.3).sub.3 which comprises adding 2,5-di-t-butylbenzoquinone to the silicon-containing methacrylate, whereby polymerization of the silicon-containing methacrylate can be inhibited. As a result, the silicon-containing methacrylate can be stabilized without any trouble in distillation step.

Growing community of inventors

Kobe, Japan

Takahisa Iwahara