Kaneka Corporation

Hideharu Jyono

Hiroshi Ito

Hiroshi Iwakiri

Hidetoshi Odaka

Fumio Kawakubo

Hiroshi Ando

Yuka Kanamori

The present invention provides a novel sealant and a novel curable resin composition providing for sufficiently high mechanical strength, adhesive strength, rubber elasticity and good workability and a direct glazing method utilizing the composition, which comprises (I) a reactive silicon group-containing polyether oligomer such that the reactive silicon group exists exclusively at the molecular chain terminus and the introduction rate of the reactive silicon group into the molecular chain terminus is not less than 85% as determined by H-NMR analysis and (II) a reinforcing filler.

Curable resin composition

Process for the preparation of polyether oligomer containing reactive silicon group

Curable composition

The present invention has its object to provide a curable composition having good storage stability even when it contains a hydrolyzable silicon compound and/or an amino group-containing alkoxysilane or amino-substituted alkoxysilane derivative compound. This invention provides a curable composition which comprises (A) a reactive silicon group-containing polyether oligomer and at least one species selected from the following (B) and (C): (B) a hydrolyzable silicon compound having a hydrolyzable group bound to a silicon atom, said hydrolyzable group being more reactive with H O than the silicon group in the above reactive silicon group-containing polyether oligomer and (C) an amino group-containing alkoxysilane or amino-substituted alkoxysilane derivative compound,

Description curable composition

The present invention has its object to provide a curable composition giving cured products improved in residual tack (reduced in stickiness), with the physical properties insuring those tensile characteristics and rubber elasticity required of sealing compositions for general architectural use being retained. The present invention provides a curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether oligomer with the percentage of the number of reactive silicon groups to the number of molecular chain terminals as determined by H-NMR analysis being not less than 85% and (II) 1 to 500 parts by weight of a plasticizer.

Silane-functionalized polyether composition

Method of producing reactive silicon group-containing polyether oligomers

Growing community of inventors

Kobe, Japan

Hideharu Jyono