Meta- and para-aramid pulp and processes of making same

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

2004-06-25

2008-11-25

Fortuna, Jose (Department: 1791)

Paper making and fiber liberation

Processes and products

Synthetic fiber

C241S021000, C523S149000, C523S220000

Reexamination Certificate

active

07455750

ABSTRACT:
The present invention relates to meta- and para-aramid pulp for use as reinforcement material in products such as seals and friction materials. The pulp comprises (a) fibril free meta-aramid particles, (b) irregularly shaped, para-aramid fibrous structures, and (c) water, whereby the para-aramid fibrous structures contact and are wrapped partially around at least some of the meta-aramid particles. The invention further relates to processes for making such aramid pulp.

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