Acrylic and para-aramid pulp and processes of making same

Details Acrylic and para-aramid pulp and processes of making same Acrylic and para-aramid pulp and processes of making same

D - Textiles, Paper

21

H

D21H 13/18 (2006.01) D21H 13/26 (2006.01)

Patent

CA 2568016

The present invention relates to acrylic and para-aramid pulp for use as reinforcement material in products such as seals and friction materials. The pulp comprises (a) irregularly shaped, acrylic fibrous structures, (b) irregularly shaped, para-aramid fibrous structures, and (c) water, whereby acrylic fibrils and/or stalks are substantially entangled with para-aramid fibrils and/or stalks. The invention further relates to processes for making such acrylic and aramid pulp.

La présente invention concerne une pâte à base de fibres acryliques et para-aramides destinée à être utilisée en tant que matériau de renfort dans des produits, tels que des joints d'étanchéité et des matériaux de frottement. La pâte comprend : (a) des structures fibreuses acryliques, de forme irrégulière, (b) des structures fibreuses para-aramides, de forme irrégulière, ainsi que (c) de l'eau, des fibrilles et/ou des fils acryliques étant sensiblement enchevêtrés avec des fibrilles et/ou des fils para-aramides. L'invention concerne également des procédés de fabrication de ladite pâte à base de fibres acryliques et aramides.

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