Toyo Ink Manufacturing Company

Toyo Ink Mfg. Co., Ltd.

Miki Kawashima

Kunio Horiuchi

Hiroaki Tanaka

Takeo Yamaguchi

Minoru Nakamura

Toru Kurihashi

Hiromi Uchida

Norifumi Watanabe

A vinyl-group-containing dendrimer useful in coating and printing and is curable by any one of conventional triggers such as heating, ultraviolet light, infrared light, electron beams and &ggr; rays, the composition comprising a vinyl-group-containing dendrimer (A) comprising a core portion, branching portions, branches and at least 4 terminal portions and having a vinyl group as a terminal portion and a long-chain group and a curable unsaturated-group-containing compound (B), and the composition comprising a vinyl-group-containing dendrimer (A) obtained by reacting a polyfunctional compound (a) having at least three active-hydrogen-containing groups in a terminal per molecule and having at least five active hydrogen atoms per molecule with a long-chain-group-containing compound (b) having a functional group reactive with an active hydrogen atom so as to leave part of the active hydrogen atoms, thereby obtaining a long-chain-group-containing multi-branched compound (X), and reacting the long-chain-containing multi-branched compound (X) with a vinyl-group-containing compound (c) having a functional group reactive with an active hydrogen atom and a curable unsaturated-group-containing compound (B).

Vinyl-group-containing dendrimer and curable composition

A multi-branched compound which can give a compound having a relatively high molecular weight but a low viscosity and having excellent coating performances, and can give a solvent-less composition having sufficient coating performances and having a low viscosity sufficient for forming a coating, and which can serve to decrease the amount of a low-molecular-weight compound having performance problems and the multi-branched compound is obtained by reacting a core compound obtained by subjecting (a) a polyamino compound having a molecule containing a primary or secondary amino group and (b-1) an active-hydrogen-containing (meth)acrylic compound in Michael addition reaction with (c) a vinyl-group-containing compound having a functional group reactive with the active hydrogen.

Multi-branched compounds and curable composition

Curable liquid resin composition

A star-like or comb-like branched aliphatic polyamino compound for use as a basic catalyst or a curing agent, as an effective thixotropic agent or viscosity adjusting agent for an aqueous medium, as a component for any one of a coating-forming agent, a sealing agent, a molding material and an adhesive resin, or as a substantially solvent-free coating composition, molding material or adhesive resin. The process for the production of the above compound comprises (a) forming an adduct of ammonia or an aliphatic amino compound having an amino group (compound A) with methyl acrylate, adding an alkylenediamine having 2 to 12 carbon atoms to the adduct to carry out an ester-amide exchange reaction (b), thereby obtaining a polyamino compound (B) having a total of 2 to 100 aliphatic primary amino and secondary amino groups per molecule and having a number average molecular weight of 170 to 10,000, and forming an adduct of the polyamino compound (B) with an acrylic acid ester (C) of the formula (1),

Process for the production of star-like or comb-like branched aliphatic

A liquid resin having a number average molecular weight of 10,000 to 200,000 and a viscosity, measured at 50.degree. C., of 500 to 30,000 cps, obtained by the copolymerization of a composition containing

Liquid resin, process for the production thereof and its use

A liquid polyester obtained by reacting a cyclic acid anhydride (A) containing at least 10 mol % of one of specific cyclic acid anhydrides with an epoxy compound (B) in a cyclic acid anhydride (A):epoxy compound (B) molar ratio of 10:8-10:12, can be applied with a conventionally generally used film-forming machine such as a roll coater or a printing machine, can easily give a film-forming material such as a solvent-free coating composition or ink and a curable liquid resin for use as an adhesive, is a low-temperature curing liquid polyester useful as a compatibilizer, a surface-tension modifier, a pigment dispersing agent and a metal chelating agent, and is curable in air in the presence of a relatively small amount of a catalyst.

Liquid polyesters from cyclic acid anhydrides

A curable liquid resin which can give a coating composition capable of forming a film, the curable liquid resin being a copolymer obtained from

Curable liquid resin, process for the production thereof and use thereof

A liquid resin having a number average molecular weight of 10,000 to 200,000 and a viscosity, measured at 50.degree. C., of 500 to 30,000 cps, obtained by the copolymerization of a composition containing (a) 35 to 98% by weight of a monomer of the formula,

Growing community of inventors

Tokyo, Japan

Miki Kawashima