Japan Atomic Energy Research Institute

Fumio Hosoi

Miyuki Hagiwara

Takashi Sasaki

Kunio Araki

Tohru Takagi

Noboru Kasai

Takayuki Hirano

Shigenori Egusa

Kiyoshi Nanishi

A self-curing epoxy resin composition is, herein, disclosed produced by irradiating with an electron beam a mixture of 85 to 97 wt % of an epoxy resin and 3 to 15 wt % of a quaternary alkyl ammonium salt of .alpha.,.beta.-unsaturated carboxylic acid or a neutralized product of an .alpha.,.beta.-unsaturated carboxylic acid and a tertiary amine.

Self-curing modified epoxy resin composition and aqueous dispersion

A self-curing modified epoxy resin composition produced by irradiating with electron beams a mixture of an epoxy resin, a quaternary salt of .alpha.,.beta.-unsaturated carboxylic acid ester having one quaternized amine nitrogen in the ester group, and optionally a monomer having one ethylenically unsaturated bond in the molecule, as well as an aqueous dispersion of such resin composition is herein disclosed.

Self-curing irradiated blend of epoxy resin and salt of quaternary amino

A polymer composition is herein disclosed, which consists essentially of:

Polymer compositions

An improved process for cross-linking a shaped polyethylene is herein disclosed comprising irradiating it with electron beams using 0.2 to 2 parts by weight of amine alone or in combination with 0.2 to 1.0 part by weight of alcohol for 100 parts by weight of polyethylene to thereby improve the electrical, mechanical, thermal and other characteristics of the polyethylene.

Process for modifying a shaped polyethylene

A method for cross-linking polyethylene, characterized in that polyethylene is blended with dipropargyl maleate and a copolymer selected from the group consisting of an ethylene-acrylonitrile copolymer, an ethylene-acrylic ester copolymer, an ethylene-substituted acrylic ester copolymer, ethylene-vinyl acetate copolymer, an ethylene-substituted vinyl acetate copolymer and mixtures thereof, and the resulting mixture being irradiated with an ionizing radiation.

Growing community of inventors

Takasaki, Japan

Fumio Hosoi