Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vlodek Gabara0
Gary Lee Hendren0
Mikhail R. Levit0
Date of Patent
September 28, 2010
Patent Application Number
12004901
Date Filed
December 21, 2007
Patent Primary Examiner
Patent 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.
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