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公开(公告)号：US4983641A
公开(公告)日：1991-01-08
申请号：US503183
申请日：1990-04-02
CPC分类号： C08J9/02 , C08J3/24 , C08J2383/04
摘要： A method is provided for controlling the cure time of a platinum-catalyzed addition cured silicone foamable composition, comprising the step of adding to the composition an aqueous buffer solution having a pH of about 2 to about 10, wherein cure time is increased if the pH of the buffer solution is higher than the pH of the composition prior to the addition thereto of the buffer solution and decreased if the pH of the buffer solution is lower than the pH of the composition prior to the addition thereto of the buffer solution.
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公开(公告)号：US5615831A
公开(公告)日：1997-04-01
申请号：US461798
申请日：1995-06-05
CPC分类号： B05B7/0466 , B01J2/04 , B05B7/0475 , B05B7/12
摘要： A precipitation jet includes a nozzle having an inlet for receiving liquid resin solution, a conical tip, and a plurality of circumferentially spaced apart outlets extending through the nozzle tip for discharging the resin solution. A tubular receiver is disposed coaxially with the nozzle tip and is spaced axially therefrom. The receiver includes a frustoconical impingement surface spaced axially from the nozzle tip to define therewith an annular flow channel having at opposite ends thereof a channel inlet for receiving steam and a channel outlet for discharging an atomized spray of the steam and resin solution for precipitating resin powder from the spray.
摘要翻译： 沉淀射流包括具有用于接收液体树脂溶液的入口的喷嘴，锥形尖端和延伸穿过喷嘴头以排出树脂溶液的多个周向间隔开的出口。 管状接收器与喷嘴头同轴设置并与其轴向间隔开。 接收器包括与喷嘴尖端轴向间隔开的截头圆锥形冲击表面，以限定一个环形流动通道，在其相对两端具有用于接收蒸汽的通道入口和用于排出蒸汽和树脂溶液的雾化喷雾的通道出口，用于沉淀树脂粉末 从喷雾。
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