Paper making and fiber liberation – Processes and products – Synthetic fiber
Reexamination Certificate
2006-12-15
2010-06-01
Hug, Eric (Department: 1791)
Paper making and fiber liberation
Processes and products
Synthetic fiber
C162S141000, C523S149000
Reexamination Certificate
active
07727356
ABSTRACT:
The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures, and (c) water, whereby wood pulp fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such wood pulp and polyareneazole pulp.
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Research Disclosure 19037.
Amma Achim
Levit Mikhail R.
E.I. du Pont de Nemours and Company
Hug Eric
Minskey Jacob Thomas
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