| 摘要 |
A method of obtaining an aqueous silicone emulsion which dries to an elastomer comprises mixing (1) hydroxyl endblocked polydiorganosiloxane free of aliphatic unsaturation, (2) silicon hydride crosslinker, (3) platinum compound catalyst compatible with the polydiorganosiloxane, (4) catalyst inhibitor, (5) anionic or nonionic surfactant, and (6) water and polymerizing the polydiorganosiloxane. These ingredients can be combined in emulsion form following three differing versions of a method of combining the ingredients and polymerizing the polydiorganosiloxane. In each case, the emulsion, which may also contain filler, is useful as a coating or sealant.
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