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公开(公告)号：EP2758454B1
公开(公告)日：2015-07-08
申请号：EP12769841.3
申请日：2012-09-21
IPC分类号： C08G75/02
CPC分类号： C08G75/14 , C08G75/0281 , C08G75/029 , C08G75/0295
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公开(公告)号：EP2720774A2
公开(公告)日：2014-04-23
申请号：EP12728349.7
申请日：2012-06-08
发明人： DUFF, Robert John , HUANG, Zheng-Zheng Jenny , KRISHNAMURTHY, Lakshmi , NAMBIAR, Rakesh , POLLINO, Joel M. , RITTER, Joachim C. , SAMUELSON, Harry Vaughn , CHI, Cheng-Hang
CPC分类号： B01D39/1623 , B01D2239/0457 , B01D2273/20 , D01F1/10 , D01F6/765
摘要： A nonwoven felt for hot gas filtration. The fibers have a polyarylene sulfide (PAS) component that contains a zinc compound. In one embodiment, the PAS comprises at least one zinc(II) salt of an organic carboxylic acid. Also a method for filtering hot gases employing a bag made from a PAS component that contains a zinc or a zinc based additive.
摘要翻译： 用于热气过滤的非织造毡。 纤维具有含有锌化合物的聚芳硫醚（PAS）组分。 在一个实施方案中，PAS包含至少一种有机羧酸的锌（II）盐。 还有一种使用由含有锌或锌基添加剂的PAS组分制成的袋子来过滤热气体的方法。
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公开(公告)号：EP2758454A1
公开(公告)日：2014-07-30
申请号：EP12769841.3
申请日：2012-09-21
IPC分类号： C08G75/02
CPC分类号： C08G75/14 , C08G75/0281 , C08G75/029 , C08G75/0295
摘要： Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide.
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