发明名称 |
Melt stable phenylene sulfide/sulfone polymers and method |
摘要 |
A phenylene sulfide/sulfone polymer with relatively good melt stability and a method of producing such a polymer are provided. A previously produced phenylene sulfide/sulfone polymer is redissolved in N-methyl-2-pyrrolidone to form a solution. This solution is combined with an alcohol to precipitate highly melt stable phenylene sulfide/sulfone polymer in a particulate form. The alcohol has one to four carbon atoms, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, and the like and mixtures thereof.
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申请公布号 |
US5039788(A) |
申请公布日期 |
1991.08.13 |
申请号 |
US19900502812 |
申请日期 |
1990.04.02 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
BOBSEIN, REX L.;CAMPBELL, ROBERT W.;YELTON, HAROLD D.;YU, MICHAEL C. |
分类号 |
C08G75/02;C08G75/20;C08J3/09;C08J3/14 |
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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