CURABLE RESIN COMPOSITION

摘要

PURPOSE:To obtain a composition having remarkably improved heat-resistance, by compounding a reactive silicon-containing organic polymer with a sulfur- based antioxidant. CONSTITUTION:The objective composition can be produced by compounding (A) 100pts.wt. of a saturated hydrocarbon organic polymer having at least one reactive silicon group at molecular terminal with (B) 0.01-10pts.wt., preferably 0.1-5pts.wt. of a sulfur-based antioxidant. The reactive silicon group of the component A is alkoxysilyl group. The main chain of the organic polymer of the component A is a polyisobutylene polymer having a molecular weight of 500-30,000. The component B is e.g. mercaptans (e.g. 2-mercaptobenzothia zole), sulfides and polysulfides.