| 摘要 |
Accelerator system for cold crosslinking of polymers curing with moisture by hydrolysis/condensation, including: - (C) x parts by weight of a catalyst of crosslinking of the said polymers by polycondensation, x ranging from 0.01 to 10; - (E) Y parts by weight of a solid inorganic compound containing a quantity y of water in the form of water of hydration and/or adsorbed by capillary condensation, this quantity y ranging from 0.5 to 40 parts by weight and capable of representing up to 70 % of the weight of the said solid inorganic compound; - (F) z parts by weight of fillers, z ranging from 0 to 50; - (D) 100-(x+Y+z) parts by weight of a diluent or of a solvent for the said catalyst (C), diluent or solvent exhibiting a dynamic viscosity at 25 DEG C of the order of 50 to 200,000 mPa s; the respective quantities of the four constituents (C), (E), (F) and (D) being such that the system obtained is in the form of a handleable paste. Use of the said accelerator system for the acceleration of silicone compositions curing with atmospheric moisture. |
