公开(公告)号：US5708098A

公开(公告)日：1998-01-13

申请号：US705106

申请日：1996-08-28

申请人： Leon Neal Cook ,  Richard Allen Hessick, Jr. ,  Kevin Edward Lupton ,  David Joseph Romenesko ,  Randall Gene Schmidt ,  Hongxi Zhang

发明人： Leon Neal Cook ,  Richard Allen Hessick, Jr. ,  Kevin Edward Lupton ,  David Joseph Romenesko ,  Randall Gene Schmidt ,  Hongxi Zhang

IPC分类号： B29B9/12 ,  B29C47/00 ,  C08J3/12 ,  C08J3/20 ,  C08L83/04 ,  C08F283/00

CPC分类号： C08J3/12 ,  B29B9/12 ,  B29C47/00 ,  B29C47/0011 ,  B29K2083/00 ,  C08J2383/04

摘要： Solventless, thermoplastic silicone pellets are prepared blending silicone resins (A) of the MQ-type and with predominantly linear silicone fluids (B), such as polydimethylsiloxane liquids and gums, to substantially homogeneity. The blends are heated to a predetermined compression-forming temperature, compression-formed to a densified mass and shaped into a pellet form. The composition of the pellets is balanced such that the pellets exhibit plastic flow at the predetermined compression-forming temperature and resist agglomeration at temperatures at or below a predetermined maximum storage temperature.

摘要翻译： 制备无溶剂的热塑性硅氧烷颗粒，其将MQ型的有机硅树脂（A）和主要为直链的硅氧烷流体（B）如聚二甲基硅氧烷液体和树胶混合至基本均匀。 将共混物加热至预定的压缩成形温度，压缩形成致密化块并成形为颗粒形式。 颗粒的组成是平衡的，使得颗粒在预定的压缩成形温度下呈现塑性流动并且在等于或低于预定最大储存温度的温度下抵抗附聚。

公开(公告)号：US5723521A

公开(公告)日：1998-03-03

申请号：US497736

申请日：1995-07-03

申请人： Leon Neal Cook ,  Richard Allen Hessick, Jr. ,  Hongxi Zhang ,  Randall Gene Schmidt

发明人： Leon Neal Cook ,  Richard Allen Hessick, Jr. ,  Hongxi Zhang ,  Randall Gene Schmidt

IPC分类号： C08G77/04 ,  C08G77/06 ,  C08J3/12 ,  C08J3/16 ,  C08K5/54

CPC分类号： C08J3/122 ,  C08J3/16 ,  C08J2383/04

摘要： Solventless silicone resins, which exhibit a high degree of reconstitution, are produced in forms such as powders and flakes. The degree of reconstitution is judged by the fact that silicone resin/fluid alloys produced therefrom exhibit only a minor shift in T.sub.g, the glass transition temperature, in comparison to analogous alloys produced from solvent dispersed (virgin) resin. Resin, and preferably virgin resin, is dispersed in a volatile liquid dispersant and blended with a nonvolatile silicone fluid. Thereafter, the volatile liquid dispersant is removed by means such as spray-drying or evaporation, resulting in the solventless resin forms of the invention.

摘要翻译： 表现出高度重构的无溶剂硅树脂以粉末和薄片的形式生产。 通过以下事实来判断重构程度：与由溶剂分散（原始）树脂制备的类似合金相比，由其生产的硅树脂/流体合金仅显示出Tg的微小偏移，玻璃化转变温度。 树脂，优选原始树脂分散在挥发性液体分散剂中并与非挥发性硅氧烷流体共混。 此后，通过喷雾干燥或蒸发等手段去除挥发性液体分散剂，得到本发明的无溶剂树脂形式。