Shin-etsu Chemical Co., Ltd.

Kazuhiro Tsuchida

Munenao Hirokami

Masaaki Yamaya

Tetsuro Yamada

Yuji Yoshikawa

Motoo Fukushima

Muneo Kudo

Shigeki Yasuda

Disclosed is an organopolysiloxane having a constituent unit represented by a general formula (1), a constituent unit represented by a general formula (2), and a group represented by a general formula (3) that is directly bonded to a silicon atom. Rrepresents an alkyl group or an aryl group. Reach independently represents an alkyl group or an aryl group, n is each independently 2 or 3, and m is an integer of 5 to 100.RO—  (3) Rrepresents a hydrogen atom, an alkyl group, or an aryl group.

Organopolysiloxane and coating composition containing organopolysiloxane

An aqueous solution composition containing a co-hydrolysate or a co-hydrolytic condensate of an organosilicon compound of formula (1) and an organosilicon compound of formula (2), or both the co-hydrolysate and the co-hydrolytic condensate: wherein Rand Rare each independently an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, Ris an alkyl group having 12 to 24 carbon atoms, Rand Rare each independently an alkyl group having 1 to 6 carbon atoms, X is a halogen atom, m is an integer of 1 to 20, and n is an integer of 1 to 3.

Aqueous solution composition containing organosilicon compounds

The purpose of the present invention is to obtain an organosilicon compound containing an isocyanate group by thiol-ene addition reaction from a corresponding organosilicon compound having a mercapto group and an isocyanate compound having a polymerizable group. Provided is a silane coupling agent which includes a specific linking structure in which a sulfur atom is indispensably contained in a linking chain which connects an isocyanate group to a hydrolyzable silyl group. Compared to silane coupling agents for use in existing technologies, this silane coupling agent has enhanced hydrophobicity and an increased organic-moiety proportion due to the sulfur-containing linking structure. Use of this silane coupling agent as an adhesive modifier hence makes it possible to obtain a pressure-sensitive adhesive in which the silane coupling agent has improved compatibility with the resin and is excellent in terms of strength of bonding to and interaction with the matrix resin having hydroxy groups and which is able to have initial reworkability and further have high adhesive force at high temperatures or under high-temperature high-humidity conditions.

Organosilicon compound containing isocyanate group, process for producing same, adhesive, pressure-sensitive adhesive, and coating material

An aqueous silane coupling agent composition is obtained from cohydrolytic reaction of (i) a succinic anhydride-containing silane coupling agent and (ii) a mercapto-containing silane coupling agent in a molar ratio of 99:1 to 1:1. The composition has improved storage stability under high-temperature conditions and is effective as modifier.

Aqueous silane coupling agent composition, making method, and surface treating agent

A coating composition comprising (A) an organosiloxane obtained from hydrosilylation reaction of an organohydrogensiloxane having at least two hydrosilyl groups with an alkenyl-containing alkoxysilane, and (B) an organometallic catalyst is fast curable at low temperature. The cured coating is crack resistant.

Low-temperature, fast curing coating composition and cured article

The invention provides a conjugated diene structure-containing organosilicon compound having formula (1):RXSi-A-CR&#x2550;CR&#x2014;CR&#x2550;CH&#x2003;&#x2003;(1)wherein Ris a monovalent hydrocarbon group, X is halogen or organoxy, n is 0, 1 or 2, Ris hydrogen or a monovalent hydrocarbon group, and A is a divalent hydrocarbon group. The organosilicon compound is prepared by reacting a conjugated diene structure-bearing olefin compound with a hydrogensilyl-containing compound in the presence of a platinum catalyst and an acid amide compound, organic amine salt compound, nitrile compound, aromatic hydroxy compound, or carboxylic acid compound.

Organosilicon compound having conjugated diene structure and making method

A coating composition comprising a hydrolyzable silyl-containing (meth)acrylic copolymer which is obtained from copolymerization of an alkyl (meth)acrylate with a silane compound having a long-chain alkylene linker between a hydrolyzable functional group and a radically polymerizable unsaturated group, and an organometallic catalyst is low-temperature curable and isocyanate-free. Even though the silane content is increased for coating hardness, the composition maintains alkali resistance and has good adhesion and solvent resistance when applied onto substrates.

Low-temperature cureable coating composition and article having cured coating thereof

A sulfur-containing organosilicon compound having a hydrolyzable silyl group, sulfide group and amide group is shelf stable and useful as a rubber compounding ingredient. When compounded in a rubber composition, the organosilicon compound is effective for significantly reducing the hysteresis loss and improving the abrasion resistance of the rubber composition.

Sulfur-containing organosilicon compound, making method, rubber compounding ingredient, and rubber composition

A silane coupling agent is obtained from high-temperature heat distillation reaction of a silane coupling agent having a customary amic acid structure group. Dealcoholization reaction takes place between the carboxylic acid group and the alkoxysilyl group in the structure to induce intramolecular crosslinking. The crosslinked polymer component exerts a remarkable adhesion promoting effect.

Silane coupling agent, making method, primer composition, and coating composition

Organopolysiloxanes containing a sulfide-containing organic group, a long-chain alkyl group, and a hydrolyzable group are novel. The organopolysiloxanes are effective for improving the shelf stability of epoxy resin compositions.

Organopolysiloxane and making method

A hydrosilylation method is provided. In this hydrosilylation method, silylation of the carbon atom other than the terminal carbon atom and generation of the by-product isomer by internal migration of the double bond are suppressed without sacrificing the hydrosilylation reactivity, even if an olefin compound having tertiary amine atom which can be a catalyst poison was used. In the hydrosilylation, an olefin compound having carbon-carbon unsaturated bond, and a compound having hydrogensilyl group are reacted in the presence of an acid amide compound, a nitrile compound and an aromatic hydroxyl compound, or an organoamine salt compound, by using catalytic action of platinum and/or its complex compound.

Hydrosilylation method, method for producing organosilicon compound, and organosilicon compound

Organosilicon compounds are represented by the following formula: wherein R is a hydrolyzable group, R' is an alkyl having 1 to 4 carbon atoms, A is an alkylene having 1 to 6 carbon atoms, X is O or S, Y is &#x2014;NH&#x2014; or S, Land Lare C or N, Z and M are &#x2014;NH&#x2014;, O or S, Rto Rare H, alkyl having 1 to 6 carbon atoms, alkoxy or fluoroalkyl, or amino, m is 1 to 3, and n is 0 to 3. Rand Ror Rand Rmay bonded together. Rand Ror Rand Rmay directly bond together. Rand Ror Rand Rmay form a ring skeleton. Their production processes, pressure-sensitive adhesive compositions, self-adhesive polarizers and LCDs are also disclosed.

Organosilicon compounds, production processes thereof, pressure-sensitive adhesive compositions containing the organosilicon compounds, self-adhesive polarizers and liquid crystal displays

A new method for producing a thioester group-containing organosilicon compound by a convenient reaction with dramatically improved workability generating reduced byproduct is provided. The method comprises reacting an organosilicon compound having a hydrolyzable silyl group and mercapto group with a carboxylic anhydride. Also provided are an organosilicon compound having a hydrolyzable silyl group, a thioester group, and carboxyl group in the same molecule capable of remarkably reducing hysteresis loss of the cured rubber composition; a compounding agent for rubber containing such organosilicon compound; a rubber composition prepared by blending such compounding agent for rubber; and a tire produced by using the cured rubber composition are also provided.

Method for producing thioester group-containing organosilicon compound, thioester group-containing organosilicon compound, compounding agent for rubber, rubber composition, and tire

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Annaka, Japan

Kazuhiro Tsuchida