SUMMARY OF THE INVENTION An object of the present invention is to provide a film having sufficient flexibility to be used as an independent film and which does not cause cracks that would pose practical problems regardless of the film thickness of the cured film state, To provide a curable polymethylsilsesquioxane composition necessary for obtaining a cured product of an oxane. This curable polymethylsilsesquioxane composition has a polystyrene reduced molecular weight of 380 to 2000 and has the following formula:;[CH3SiO3/2]n[CH3Si (OH) O2 / 2]m;(Wherein m and n are positive integers giving the above molecular weights, 0.34 / M x 10-3) M / (m + n) 0.152 / M 10-3) +0.10), and a curing catalyst and / or a crosslinking agent. This composition has excellent physical and chemical properties by curing, and can be used as a raw material for a surface protective coating or a heat resistant coating of various materials.
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机译：发明内容本发明的目的是提供一种膜，该膜具有足够的柔韧性以用作独立膜，并且不会引起裂纹，而无论固化膜状态的膜厚如何，该裂纹都不会引起实际问题。获得恶烷的固化产物所需的可固化的聚甲基倍半硅氧烷组合物。该可固化的聚甲基倍半硅氧烷组合物具有380至2000的聚苯乙烯降低的分子量，并具有下式：[CH 3 SiO 3/2 ] n [CH 3 Si（OH）O2 / 2] m ;（其中m和n为给出上述分子量的正整数，0.34 / M x 10 -3 ）M /（m + n）0.152 / M 10 -3 ）+0.10），以及固化催化剂和/或交联剂。该组合物通过固化具有优异的物理和化学性质，并且可用作各种材料的表面保护涂层或耐热涂层的原料。
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