Takeda Chemical Industries, Inc.

Du Pont-Mitsui Polychemicals Co., Ltd.

Mitsui Polychemicals, Co., Ltd.

Reiji Miyamoto

Shiro Narasaki

Hideo Akimoto

Tetsujiro Tatsumi

Masamitsu Nakabayashi

Michio Tanaka

Fumihiro Doura

Tsutomu Kubota

Jugo Goto

Seiji Kazama

Kazutaka Mochizuki

Disclosed herein are a novel graft copolymer comprising a stock copolymer (A) of at least one monomer selected from esters of unsaturated carboxylic acids and vinyl esters (a), ethylene (b) and carbon monoxide (c), and a polyamide oligomer having a primary amino group at one end of its molecule (B) grafted on said stock copolymer, and a process for the preparation thereof. The proposed graft copolymer, when used as an adhesive, in particular for adhesion of polyvinyl chloride, exhibits excellent heat resistance and adhesion properties.

Process for the preparation of a graft copolymer including a monomer of

Graft copolymer and process for the preparation thereof and use

A polyurethane based composition for powder coating uses, which comprises a combination of an organic polyisocyanate compound and a hydroxyl-containing compound, the hydroxyl-containing compound being

Polyurethane composition for powder coating

A hot-melt adhesive composition containing (i) a first component consisting of (a) 20 to 100 weight percent of a hydrolyzed ethylene-vinyl acetate copolymer whose vinyl acetate unit content is in the range of 5 to 50 weight percent and its hydrolysis degree is at least 50 percent and/or a carboxyl-containing product obtained by grafting said copolymer with a carboxyl-containing unsaturated compound or anhydride thereof and (b) 0 to 80 weight percent of a resin compatible with said copolymer and/or said carboxyl-containing product and (ii) a second component which is a tackifying resin, the proportion of said first component being not less than 20 weight percent and that of said second component being not less than 20 weight percent, both based on said two components, and said composition optionally may further contain (iii) a wax as a third component is highly improved in adhesivity as compared with the hitherto known hot-melt adhesive compositions.

Hot-melt adhesive composition

Glass bottles, suitable as containers for drinks, such as beer and fruit juice, are coated with a single layer of a thermally cured material formed of a powdery composition comprising a mixture of (i) a blocked organic polyisocyanate and (ii) a hydrolyzed ethylene-vinyl ester copolymer and/or a carboxyl-modified version of said hydrolyzed copolymer. The coated bottles are highly effective in the prevention of scattering of glass fragments in the event of breakage and excellent in clarity, alkali resistance, abrasion resistance, scratch resistance and weathering quality.

Coated glass bottles

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Ichihara, Japan

Reiji Miyamoto