Asahi Kasei Chemicals Corporation

Taketoshi Usui

Kazuhiro Daikai

Satoru Kaji

Hisanao Yamamoto

Kazuhiko Yamamoto

A curable composition for sealing a light emitting device, comprising a modified polysiloxane containing, in a molecule, not less than one alicyclic hydrocarbon group and not less than two epoxy groups.

Resin composition for sealing light emitting device

An amine hardener for epoxy resins which comprises an amine adduct (A) and a low-molecular amine compound (B) as major components, wherein the molecular weight distribution of the amine adduct (A), which is defined by the ratio of the weight-average molecular weight to the number-average molecular weight, is 3 or lower and the low-molecular amine compound (B) is contained in an amount of 0.001 to 1 part by mass per 100 parts by mass of the amine adduct (A).

Growing community of inventors

Yokohama, Japan

Taketoshi Usui