| 摘要 |
A method of reducing the density of a silicone foam is provided comprising mixing with a foamable silicone composition having a base polydiorganosiloxane, an effective amount of a resinous copolymer selected from the group consisting of resinous copolymers of R3SiO0.5 units and SiO2 units, and ratio of R3SiO0.5 units ranging from 0.25 to 0.8:1, and resinous copolymers formed from R3SiO0.5 units, R21SiO units and SiO2 units, the ratio of R3SiO0.5 to SiO2 units ranging from 0.25 to 0.8:1 and the ratio of R21SiO to SiO2 units ranging from 0 to 0.1:1, and thereafter simultaneously foaming and curing the mixture.
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