Invention Grant
- Patent Title: Papers containing floc derived from diamino diphenyl sulfone
- Patent Title (中): 含有二氨基二苯砜衍生的絮体的纸
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Application No.: US12004901Application Date: 2007-12-21
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Publication No.: US07803247B2Publication Date: 2010-09-28
- Inventor: Mikhail R. Levit , Vlodek Gabara , Gary Lee Hendren
- Applicant: Mikhail R. Levit , Vlodek Gabara , Gary Lee Hendren
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: D21H13/20
- IPC: D21H13/20 ; D21H13/26
Abstract:
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.
Public/Granted literature
- US20090162605A1 Papers containing floc derived from diamino diphenyl sulfone Public/Granted day:2009-06-25
Information query
