Asahi Glass Company, Limited

Teruhiko Yasuda

Hiroshi Wada

Hisashi Sato

Tomohiro Hayashi

Katsuhiko Shimizu

Chitoshi Suzuki

Genichirou Enna

Hitoshi Shimoma

Yoshitaka Sunayama

Yasuhito Adachi

To provide an adherence substance which has a low viscosity and good coatability, can be made solvent free, has a low adhesive strength, of which increase with time is small, has good adhesion to a substrate, has excellent adhesion to an adherend and excellent removability, and has a good wettability. An adherence substance which is obtained by curing a curable composition comprising a silyl group-containing polymer (S) obtained by introducing a hydrolyzable silyl group to a molecular terminal of a polyurethane prepolymer obtained by reacting a polyol compound with a polyisocyanate compound, and which has a peel adhesive strength of at most 8N/25 mm.

Adherence substance, pressure sensitive adhesive sheet and its use

To provide a method for producing a rigid polyurethane foam, whereby it is possible to reduce the density without causing deterioration in dimensional stability, and a rigid polyurethane foam. A method for producing a rigid polyurethane foam, which comprises a step of reacting a polyol having a hydroxyl value of from 200 to 800 mgKOH/g with a polyisocyanate compound in the presence of an amino-modified silicone, a catalyst, a blowing agent and a surfactant.

Method for producing rigid polyurethane foam, and rigid polyurethane foam

To provide a method for producing a polymer-dispersed polyol which has high compatibility with a polyol for rigid polyurethane foams and is excellent in storage stability and which provides good heat-insulating performance when it is formed into a rigid polyurethane foam. Also a method for producing a polymer-dispersed polyol for rigid polyurethane foams, having polymer particles dispersed in a polyol, which comprises polymerizing a monomer having a polymerizable unsaturated group in a polyol (X), wherein the polyol (X) contains a polyether polyol (Y) having an oxyethylene group content of at least 10 mass %, and the monomer having a polymerizable unsaturated group contains a fluorinated acrylate or a fluorinated methacrylate.

Method for producing polymer-dispersed polyol

To provide a curable composition which has a high curing rate and can provide a cured product having good durability. A curable composition comprising an oxyalkylene polymer (A) having a reactive silicon group represented by the following formula (1), and a quaternary ammonium salt (B):&#x2014;SiXR&#x2003;&#x2003;(1)wherein Ris a Cmonovalent organic group which may have a substituent, Xis a hydroxyl group or a hydrolyzable group, and a is an integer of from 1 to 3; provided that when plural Rs are present, they may be the same or different from one another, and when plural Xs are present, they may be the same or different from one another.

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Kamisu, Japan

Teruhiko Yasuda