| abstract |
The instant invention pertains to a curable composition comprising(a) substance that generates free radicals under the action of ultraviolet radiation and(b) polymer molecule bearing functionality capable of polymerization under the action of said free radicals wherein (a) is a benzoin ether and makes up from 0.001 to 10 wt % of the total composition and (b) has the following formulain which R, R', and R'' are each H or C1 to C10 hydrocarbyl possibly containing a heteroatom and at least 10 % is, for example, a vinyl group, and a+b+c+d=1. The composition of the instant invention is a storage-stable UV-curable composition that does not suffer from cure inhibition by air or oxygen, that is very efficiently cured by low doses of UV radiation, and provides a highly heat-resistant cured pattern by heating after pattern formation. |