发明名称 |
Polyarylene sulfide foams and a process for their production |
摘要 |
A foamed polyarylene sulfide according to the invention has a density which is reduced by at least 50% compared with the theoretical density of nonfoamed material, and is expediently produced by subjecting a polyarylene sulfoxide as such or a mixture of one or more polyarylene sulfides with a polyarylene sulfoxide to heat treatment. The temperature of the heat treatment is in the range from 250 DEG to 400 DEG C.
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申请公布号 |
US5789452(A) |
申请公布日期 |
1998.08.04 |
申请号 |
US19970955134 |
申请日期 |
1997.10.21 |
申请人 |
TICORA GMBH |
发明人 |
FRANK, GEORG;KULPE, JUERGEN;SCHLEICHER, ANDREAS;SCHECKENBACH, HELMUT |
分类号 |
C08G75/18;C08J9/02;C08L81/00;C08L81/02;(IPC1-7):C08J9/02 |
主分类号 |
C08G75/18 |
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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