Abstract:
PROBLEM TO BE SOLVED: To provide a curable resin composition having a slight load on the environment and a silicon-containing characteristic group at a high curing rate by using no organic butyltin compound generally used as a curing catalyst of a resin having a hydrolyzable silyl group in the molecule or remarkably reducing the amount thereof used and to provide a moisture-curable type adhesive composition comprising the same as a component. SOLUTION: The curable resin composition comprises a curable resin (A) having a hydrolyzable dimethoxysilyl group in the molecule, a silane compound (B) having a hydrolyzable silyl group and an amino group, a Lewis acid or a derivative (C) thereof and an organometallic catalyst (D) as components. The moisture-curable type adhesive composition comprises the curable resin composition. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a vinyl polymer having a hydrolyzable silyl group, scarcely forming gel when produced and providing a cured product having large strength and elongation and to provide a sealing material composition and an adhesive composition each containing the vinyl polymer having the hydrolyzable silyl group obtained by the above method and providing a cured product having large strength and elongation. SOLUTION: The method for producing the vinyl polymer having the hydrolyzable silyl group comprises continuously producing a vinyl monomer at 120-300°C under conditions in which reaction solution in a reactor contains 1-50 pts. mass reaction solvent containing 1-30 pts. mass solvent composed of a hydrolyzable ester compound and 100 pts. mass total of the vinyl monomer and the polymer produced by polymerization of the vinyl monomer by using an agitating tank type continuous reactor. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive composition for an optical device, having an excellent heat resistance and durability even in the case of bonding members having different linear expansion coefficients. SOLUTION: This adhesive composition for the optical device contains (A) a polymer of which main chain contains an acrylic acid alkyl ester monomer unit and/or a methacrylic acid alkyl ester monomer unit and at least one hydrolyzable silicon-containing group in one molecule and (B) a silane-coupling agent. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a curable composition which comprises an organic polymer bearing a crosslinkable hydrolyzable silyl group, does not cause phase separation and gives a stable cured film hardly causing bleeding out of additives after cure, a sealing material and an adhesive. SOLUTION: The curable composition comprises the organic polymer (a) bearing at least a crosslinkable hydrolyzable silyl group and an organic polymer (b) having a difference in the SP value of at most 7×10 -4 (J/m 3 ) 0.5 from the organic polymer (a). Preferably, the curable composition further contains a layered silicate. The sealing material comprises the curable composition. The adhesive comprises the curable composition. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a curable composition which hardly causes bleeding out of additives after cure and has viscosity permitting ready application operations and filling operations, a sealing material and an adhesive. SOLUTION: The curable composition comprises a vinyl polymer (a) containing a crosslinkable hydrolyzable silyl group and a polyether segment, and an organic polymer (b) containing a polyether segment and having a number-average molecular weight of 200-50,000. Preferably, the vinyl polymer (a) and/or the organic polymer (b) are obtained by radical polymerization using an organic peroxide as a polymerization initiator. Preferably, the curable composition further contains a layered silicate. The sealing material comprises the curable composition. The adhesive comprises the curable composition. COPYRIGHT: (C)2005,JPO&NCIPI