| 摘要 |
PURPOSE:To provide the subject composition containing a catechol derivative such as 3-(9'z, 12'z, 15'z-octadecatrienyl)catechol, a vegetable mucous substance and an oxidation enzyme, having properties comparable to those of natural Japanese lacquer and useful for coating material, adhesive, water-proofing material, etc. CONSTITUTION:The objective coating composition useful for coating material, adhesive, rust-proofing agent, water-proofing agent, etc., and containing a catechol derivative which is an analog of urushiol can be produced by compounding (A) 100 pts.wt. of at least one kind of catechol derivative such as 3-(9'z, 12'z, 15'z-octadecatrienyl)catechol of formula I and 3(9'z,12'z- octadecadienyl)catechol of formula II with (B) 2-20 pts.wt. of a vegetable mucous substance such as solubilized starchy substance, pectic substance, vegetable gum, bark glue, seed-originated mucous substance and algae-originated mucous substance and (C) 0.001-1 pt.wt. of an oxidation enzyme such as laccase, ascorbic acid oxidase and tyrosinase and kneading the composition under ultrasonic vibration while slowly adding water to the composition. |
