Toyo Ink Manufacturing Company

Kouichi Iibuchi

Toshikazu Onikubo

Masayoshi Utsugi

Shinya Fujimatsu

Masaaki Ishiyama

Masato Yanagi

Takashi Mihoya

Takeaki Matuura

Tsukasa Otsuki

An aqueous dispersion of an aqueous polyurethane having an ionic functional group, polyoxyethylene units and terminal hydrazine functional groups is provided. Content of the ionic functional group is about 5 to about 180 milliequivalent per 100 g of the aqueous polyurethane, and content of the polyoxyethylene unit is about 20% by weight or less of a weight of the aqueous polyurethane. The aqueous dispersion is used for a composition for ink, coating or adhesive. Storage stability, water resistance, pigment dispersibility, and adhesion to various kinds of substrates, particularly non-polar substrates, of the aqueous dispersion and the composition are excellent.

Aqueous dispersion of an aqueous hydrazine-terminated polyurethane

A curable adhesive composition comprising an unsaturated polyester oligomer (A) of any of the following formulae (I) to (IV), obtained by reacting a compound (a) having a hydroxyl group and/or an amino group, a cyclic acid anhydride (b) and an epoxide (c) having an ethylenically unsaturated group, and an adhesive polymer (B), ##STR1## wherein: R.sub.1 is a divalent organic moiety having 1 to 40 carbon atoms,

Curable adhesive composition and sheet thereof

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Tokyo, Japan

Kouichi Iibuchi