公开(公告)号：US20150259495A1

公开(公告)日：2015-09-17

申请号：US14424473

申请日：2013-09-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Junkang J. Liu ,  Pingfan Wu ,  Bai Feng ,  David A. Ylitalo

IPC: C08J9/12 ,  C08J9/00

CPC classification number: C08J9/125 ,  C08G77/70 ,  C08J9/0061 ,  C08J2201/03 ,  C08J2203/10 ,  C08J2205/05 ,  C08J2383/04 ,  C08J2383/06 ,  C08J2483/06 ,  C08L83/04 ,  C08L83/00

Abstract: Crosslinked silicone foams are provided that can be substantially free of chemical blowing agents or byproducts thereof. These foams can be prepared from polymerizable silicone compositions that include an MQ-water cluster including a silicate MQ resin and a quantity of water dispersed in the silicate MQ resin and a silicone fluid, wherein the MQ-water cluster and silicone fluid collectively provide a inverted emulsion having a continuous and a discontinuous phase, the continuous phase including the silicone fluid and the discontinuous phase including the MQ-water cluster. The foams can be made by dispersing water into a silicate MQ resin to provide an MQ-water cluster; dispersing the stabilized MQ-water cluster into a silicone fluid to obtain an inverted silicone emulsion having the MQ-water cluster as a discontinuous phase and the silicone fluid as a continuous phase; foaming the silicone emulsion by evolving the water in the MQ-water cluster to provide a cellular structure; and polymerizing the silicone emulsion.

Abstract translation: 提供交联的硅酮泡沫，其基本上不含化学发泡剂或其副产物。 这些泡沫可以由可聚合的硅氧烷组合物制备，其包括包含硅酸盐MQ树脂的MQ-水团和分散在硅酸盐MQ树脂中的一定量的水和硅氧烷流体，其中MQ-水簇和硅氧烷流体共同地提供倒置 具有连续和不连续相的乳液，所述连续相包括硅氧烷流体和包含MQ-水簇的不连续相。 泡沫可以通过将水分散到硅酸盐MQ树脂中来提供MQ-水簇; 将稳定化的MQ-水簇分散到硅氧烷流体中以获得具有MQ-水簇作为不连续相的反相硅氧烷乳液和硅氧烷流体作为连续相; 通过放出MQ-水簇中的水来发泡硅氧烷乳液以提供细胞结构; 并聚合硅氧烷乳液。