Dainippon Ink and Chemicals, Incorporated

Minoru Homma

Noboru Okoshi

Akio Shoji

Nansei Tashiro

Hidehisa Nakamura

Kin-ichi Kudo

Soichi Shimoyama

A process for producing a rosin-modified phenolic resin modified with an animal or vegetable oil, which has superior properties as a vehicle for offset printing inks; and a resin composition for printing inks comprising the oil-modified and rosin-modified phenolic resin obtained by the aforesaid process as an essential ingredient.

Process for producing a resin for printing ink, and a composition

A powder coating resin composition comprising (A) 10 to 90% by weight of a glycidyl- or methyl glycidyl-containing copolymer and (B) 90 to 10% by weight of a polycarboxylic compound, said copolymer (A) being prepared by polymerizing (1) 5 to 40% by weight of at least one ethylenically unsaturated monomer selected from the group consisting of glycidyl-containing ethylenically unsaturated monomers and methyl glycidyl-containing ethylenically unsaturated monomers and (2) 20 to 90% by weight of at least one other ethylenically unsaturated monomer in the presence of (3) 5 to 40% by weight of a polyester resin containing an ethylenically unsaturated bond and having an acid number of not more than 10 KOH mg/g and a hydroxyl number of 20 to 300 KOH mg/g, said polyester resin being derived from 0.1-10 equivalent percent of an ethylenically unsaturated polycarboxylic acid, 30 to 49.9 equivalent percent of a polycarboxylic acid not containing an ethylenically unsaturated bond and 50 to 65 equivalent percent of a polyhydric alcohol.

Powder coating resin compositions of glycidyl copolymers having an

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Sakai, Japan

Minoru Homma