摘要 |
A one-component moisture curing composition expands and cures under ambient conditions without the use of external blowing agents. The one-component moisture cure foam contains (1) a moisture curing polymer, (2) anhydrous molecular sieves that are able to adsorb atmospheric moisture to release adsorbed gases, optionally (3) catalyst compound(s) to accelerate the reaction between atmospheric moisture and the polymer, and optionally (4) other additives such as surfactants, fillers, adhesion promoters, pigments, water scavengers and foamable additives. |