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US 5,580,356 AGranted
Fibre treatment method
AssigneeCourtaulds Fibres (Holdings) Limited
InventorJames M. Taylor
Life of this patent
Estimating the term…
Abstract
The fibrillation tendency of solvent-spun cellulose fibre is reduced by treating the fibre with a cross-linking agent and a flexible linear polymer with terminal functional groups, for example polyethylene glycol (PEG) of molecular weight 300 to 600. The fibre may be treated in never-dried or in fabric form.
Claims17
A method of reducing the fibrillation tendency of solvent-spun cellulose fibre, which comprises contacting said fibre with:
- (a) a flexible linear polymer having terminal functional groups;
- and
- (b) a crosslinking agent reactive with cellulose and with said terminal functional groups, said flexible linear polymer containing no functional groups reactive with cellulose or with said crosslinking agent other than said terminal functional groups.
Dependencies are inferred from the claim text.