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 formula
(R3SiO1/2)a(R'2SiO2/2)b(R''SiO3/2)c(SiO4/2)d
in 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 a̲ + b̲ + c̲ + d̲ = 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.
本发明涉及一种可固化组合物,其中包括
(a) 在紫外线辐射作用下产生自由基的物质,以及
(b) 具有在所述自由基作用下能够聚合的官能团的聚合物分子 其中 (a) 是
安息香醚,占总成分的 0.001 至 10 wt%,(b) 具有下式
(R3SiO1/2)a(R'2SiO2/2)b(R''SiO3/2)c(SiO4/2)d
其中 R、R'和 R''各自为 H 或可能含有杂原子的 C1 至 C10 烃基,至少 10%为例如
乙烯基,且 a̲ + b̲ + c̲ + d̲ = 1。本发明的组合物是一种贮存稳定的紫外线固化组合物,不会受到空气或
氧气的固化抑制,可通过低剂量的紫外线辐射高效固化,并在图案形成后通过加热提供高耐热性的固化图案。