发明申请
- 专利标题： Papers containing floc derived from diamino diphenyl sulfone
- 专利标题（中）： 含有二氨基二苯砜衍生的絮体的纸
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申请号： US12004901申请日： 2007-12-21
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公开(公告)号： US20090162605A1公开(公告)日： 2009-06-25
- 发明人: Mikhail R. Levit , Vlodek Gabara , Gary Lee Hendren
- 申请人： Mikhail R. Levit , Vlodek Gabara , Gary Lee Hendren
- 主分类号： D21H13/20
- IPC分类号： D21H13/20 ; B32B3/12
摘要：
This invention relates to papers made with floc containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4′diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone, and mixtures thereof. Such papers have higher elongation-at-break and work-to-break (toughness) properties and exhibit less shrinkage at high temperatures than papers made with solely with poly (metaphenylene isophthalamide) floc.
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