| 摘要 |
<p>PURPOSE:An ultraviolet curable coating compositin suitable for printing ink, that is composed of a copolymer from a cyclopentadiene compound and a polymerizable unsaturated compound bearing hydroxyl groups and a benzophenone derivative bearing carboxyl groups. CONSTITUTION:(I) a copolymer from (A) a cyclopentadiene compound of the formula (R is organic residue of 1-3 carbon atoms, n is 0 or integral number of 1- 6) or its Diels-Alder adduct and (B) a compound having a polymerizable double bond and hydroxyl group in the molecule such as allyl alcohol, or its hydrogenated product is esterified with (II) a benzophenone derivative bearing carboxyl groups such as o-benzoylbenzoic acid or a mixture thereof with unsaturated carboxylic acids to form said ultraviolet curable resin composition. The resulting resin composition can start photopolymerization by its own and can eliminate drawbacks caused by the excess addition of photosensitizer. Further it disperse smoothly pigments and can be washed readily with petroleum cleaners.</p> |
