Process to produce tack-free rubber particles |
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| 申请号 | EP91200270.6 | 申请日 | 1991-02-08 | 公开(公告)号 | EP0442569A3 | 公开(公告)日 | 1992-05-20 |
| 申请人 | SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.; | 发明人 | Gorman, John Eugene; | ||||
| 摘要 | A process to produce a free flowing fine polymer powder is provided. The process comprises the steps of: providing a polymer cement comprising a polymer either melt or dissolved in a solvent to form a polymer cement; dispersing an antiblocking agent within a stream consisting of steam to form atomization steam; atomizing the polymer cement; contacting the atomized polymer cement with the atomization steam; and recovering polymeric particles. Polymeric particles so prepared have an average particle size of between 100 and 1000 microns. In a preferred embodiment, the polymers produced are rubbery polymers which are free flowing. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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