Two-component synthetic fibres suited to replace cellulose...

Details Two-component synthetic fibres suited to replace cellulose... Two-component synthetic fibres suited to replace cellulose...

D - Textiles, Paper

01

F

18/582

D01F 8/06 (2006.01) D01D 5/11 (2006.01)

Patent

CA 1195813

A B S T R A C T Two-component fibres, having surface area of at least 1 m2/g, suited for replacing cellulose fibers in the ma- nufacture of paper and paper-like products comprise a core of olefinic polymer and from 2 to 50% by weight of a sheat of a hydrophilic polymer, and exibit values of the tenaci- ty higher than 3,000 meters and cohesion higher than 300 meters. They are prepared by extruding a stable emulsion formed by a mixtyre of a solution of the olefinic polymer with a solution of the hydrophilic polymer in reciprocal- ly immiscible solvents, at a temperature exceeding the boiling temperature of the solvent of the olefinic poly- mer and at least equal to the dissolution temperature of such polymer in such solvent, in a medium at a lower pres- sure.

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