| 摘要 |
<p>Silicone elastomer molds or tools are used to shape amine containing resins. If the mold is coated with a silane of the formula RaSiX4-a, where R is a monovalent halogenated hydrocarbon having 1 to 6 carbon atoms and the halogen is selected from the group consisting of chlorine, bromine and iodine, X is a monovalent radical that reacts with a hydroxyl radical on silicon and a is 1 to 3, before use, the shrinkage of the mold with repeated use is decreased and the elastomeric mold or tool life is greatly extended.</p> |
