申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0385456A2
公开(公告)日:1990-09-05
The present invention relates to a high surface hardness transparent resin having excellent scratch resistance, heat resistance and chemical resistance, a glazing material, a protective cover for display devices, an optical lens and a hard coat material comprising the aforesaid resin, and a novel polymerizable monomer which is useful as a raw material of the above-mentioned resin.
The monomer is represented by the formula (I)
(wherein R is an aliphatic residue having or not having an halogen atom, an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, an alicyclic residue, or a heterocyclic residue, n is an interger of 1 to 4, when n = 1 X is oxygen or sulfur, when n≧2, X's are all oxygen or all sulfur, one X is oxygen while the other X or X's are sulfur, one X is sulfur while the other X or X's are oxygen, or two X's are oxygen while the other X's are sulfur).
The aforesaid high surface hardness transparent resin comprises a crosslinked polymer prepared by copolymerizing a monomer (A) represented by the formula (I) and a monomer (B) having, in one molecule, m functional groups of at least one kind selected from the group consisting of CH2=CH-C(O)-O-, CH2=C(CH3)-C-(0)-0- and
where (n + m) is an integer of 3 or more.
本发明涉及一种表面硬度高、具有优异的抗划伤性、耐热性和耐化学性的透明树脂,一种由上述树脂组成的上光材料、显示器件保护盖、光学镜片和硬涂层材料,以及一种可用作上述树脂原料的新型可聚合单体。
该单体由式(I)表示
(其中 R 是具有或不具有卤素原子、氧原子、脂环、杂环或芳香环、脂环残基或杂环残基的脂族残基,n 是 1 至 4 的中间值、当 n = 1 时,X 为氧或硫;当 n≧2 时,X 全部为氧或全部为硫;一个 X 为氧,而另一个或多个 X 为硫;一个 X 为硫,而另一个或多个 X 为氧;或两个 X 为氧,而另一个或多个 X 为硫)。
上述高表面硬度透明树脂包括一种交联聚合物,其制备方法是将式 (I) 所代表的单体 (A) 和单体 (B) 共聚,单体 (B) 的一个分子中含有至少一种选自以下组别的 m 个官能团:CH2=CH-C(O)-O-、CH2=C(CH3)-C-(0)-0- 和 (n+m) 为官能团。
其中 (n + m) 为 3 或 3 以上的整数。