Kaneka Corporation

Jun Hattori

Toshifumi Hirose

Shintaro Komitsu

Kazuhiko Ueda

Katsuhiro Ando

The present invention provides a solution to a problem that a composition including a reactive silicon group-containing polyether undergoes red coloration. More specifically, in a reactive silicon group-containing organic polymer which contains Co, the problem concerned is solved by limiting the Co content to 0.5 ppm or less. As the reactive silicon group-containing organic polymer, for example, a reactive silicon group-containing polyether (A) or a mixture of the reactive silicon group-containing polyether (A) and a vinyl polymer (B) may be cited. The reactive silicon group-containing polyether (A) is obtained, for example, by reacting a polyether or a derivative thereof which contains Co in a content of 0.5 ppm or less with a silane compound which has a group capable of reacting with the polyether or the derivative thereof and has a hydrolyzable group.

Organic polymer containing reactive silicon group

By further incorporating a reductant into a composition including an oxyalkylene polymer prepared by polymerization in the presence of a cobalt-containing double metal cyanide complex catalyst; and an acrylic polymer prepared by radical polymerization in the presence of a mercapto group-containing compound, a resin composition in which excessive coloration is prevented and that is suitably used for an adhesive or the like is prepared.

Resin composition and process for producing the same

Process for fitting glass members onto vehicles

A curable resin composition containing (a) an oxyalkylene polymer which comprises at least one silicon-containing group having at least one hydroxyl or hydrolyzable group bonded to a silicon atom, (b) an epoxy resin, (c) a ketimine compound and (d) a carbonyl compound, which has improved storage stability.

Growing community of inventors

Takasago, Japan

Jun Hattori