发明名称 |
Recovery of poly(arylene sulfide ketone) and poly(arylene sulfide diketone) resins |
摘要 |
A poly(arylene sulfide ketone) or poly(arylene sulfide diketone) resin having improved handling characteristics is prepared by a process comprising preparing in a first enclosed vessel a slurry comprising a solid poly(arylene sulfide ketone) or poly(arylene sulfide diketone) resin and a liquid polar organic compound, and optionally water; then substantially liquifying the resin to form a mixture comprising substantially liquified resin and polar organic compound; then flashing the mixture into a second vessel having a pressure lower than the first vessel, thereby removing a portion of the polar organic compound and solidifying the resin. When the slurry further comprises water, the invention method optionally includes a venting step prior to the substantial liquification of the resin and/or a concentration step after the substantial liquification of the resin.
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申请公布号 |
US5091509(A) |
申请公布日期 |
1992.02.25 |
申请号 |
US19890459011 |
申请日期 |
1989.12.29 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
NESHEIWAT, AFIF M.;GEIBEL, JON F. |
分类号 |
C08G75/02;C08G85/00 |
主分类号 |
C08G75/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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