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AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsMiki Kawashima, Takeo Yamaguchi, Kunio Horiuchi, Hiromi Uchida
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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.
A liquid polyester obtained by reacting, in a one-step process, a cyclic acid anhydride (A) containing at least 10 mol % of at least one of cyclic acid anhydrides of the formulae (a) to (e), ##STR2## wherein R.sub.1 is a saturated or unsaturated aliphatic hydrocarbon group having 4 to 25 carbon atoms, with a monoepoxide (B) which contains 5 to 100 mol % of at least one compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, acryl glycidyl ether and glycidyl cinnamate, in the presence of a hydroxyl group-containing compound (C) which is added in an amount of 0.001 to 0.2 equivalents per mole of the cyclic acid anhydride (A), the molar ratio of cyclic acid anhydride (A) to monoepoxide (B) being 10:8-10:12.
A liquid polyester obtained by reacting a cyclic acid anhydride (A) containing at least 10 mol % of at least one of cyclic acid anhydrides of the formulae (a) to (e), ##STR3## wherein R.sub.1 is a saturated or unsaturated aliphatic hydrocarbon group having 4 to 25 carbon atoms, with a monoepoxide compound (B) which contains 5 to 100 mol % of at least one compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, acryl glycidyl ether and qlycidyl cinnamate, in the presence of a dry or semi-dry partially saponified fat and oil having a saponification ratio of 5 to 90%, the molar ratio of cyclic and anhydride (A) to monoepoxide compound (B) being 10:8-10:12.
Dependencies are inferred from the claim text.