D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 13/10 (2006.01) D21F 11/00 (2006.01) D21H 13/20 (2006.01) F16D 69/00 (2006.01)
Patent
CA 2631348
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.
L'invention concerne une pâte de bois et de polyarène-azole à utiliser en tant que matière de renforcement dans des produits, notamment, par exemple, des matières étanches aux fluides et des matières de frottement, et des papiers. Cette pâte comprend: a) des structures fibreuses de pâte de bois, présentant une forme irrégulière, b) des structures fibreuses de polyarène-azole présentant une forme irrégulière et c) de l'eau dans laquelle des fibrilles et/ou des tiges de pâte de bois sont sensiblement entremêlées aux fibrilles et aux tiges de polyarène-azole. L'invention concerne également des procédés de fabrication d'une telle pâte de bois et de polyarène-azole.
Amma Achim
Levit Mikhail R.
E.i. Du Pont de Nemours And Company
Torys Llp
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