Process for producing curable coating resins
AssigneesNippon Oil Co., Ltd., Toyo Ink Manufacturing Co., Ltd.
InventorsShozo Tsuchiya, Hideo Hayashi, Makoto Sasaki, Kiyoshi Goto, Kazuyoshi Ihida
Life of this patent
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Abstract
A process for preparing a curable coating resin comprising the steps of hydrogenating selectively the double bonds of a resin produced from a five-membered cyclic compound such as dicyclopentadiene and an unsaturated hydroxyl group-containing compound such as allyl alcohol and then esterifying the thus hydrogenated hydroxyl group-containing resin with acrylic and/or methacrylic acid thereby to obtain a curable coating resin; and a curable coating resin obtained by said process.
Claims6
A process for preparing a radiation or heat curable coating resin (III) comprising the steps of:
- hydrogenating selectively the double bonds of a hydroxyl group-containing resin (I) produced by reacting
- (A) a compound selected from the group consisting of five-membered cyclic compounds having unsaturated conjugated double bonds and being represented by the following general formula ##STR2## wherein R is an organic residue having 1 to 3 carbon atoms, and m and n are each an integer and are 6 in total, and Diels-Alder's reaction products of the five-membered cyclic compound, with
- (B) at least one member selected from the group consisting of 2-hydroxyethyl (meth)acrylate and 2-hydroxypropyl (meth)acrylate, to obtain a hydrogenated hydroxyl group-containing resin (II) and then
- esterifying the thus obtained resin (II) with at least one member selected from the group consisting of acrylic and methacrylic acids thereby to obtain the radiation or heat curable coating resin (III).
Dependencies are inferred from the claim text.