| 摘要 |
Compsn. (I) comprises A) polyhydroxypolysiloxane, B) polyacyloxysilane, and C) curing accelerator contained in microcapsules having impermeable coating which can be penetrated under effect of heat and/or irradiation and/or suitable mechanical treatment. - Coating is polystyrene, acrylonitrile-styrene copolymer, PVC, PVDC, PVC-PVDC, ethylcellulose, cellulose nitrate, poly(Me methacrylate), epoxide resin, polysulphone, polycarbonate or polyimide. Micro-capsules are 5-200 microns. Accelerator is alkali hydroxide, anhydrous or hydrated alkaline earth hydroxide, aq. mixt. of alkali or alkaline earth phosphate and/or polyphosphate, or Na aluminosilicate contg. 5-15 wt.% adsorbed water.
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