Solutions, which can be shaped, from mixtures of cellulose and p

Details Solutions, which can be shaped, from mixtures of cellulose and p Solutions, which can be shaped, from mixtures of cellulose and p

1981-06-10

1984-06-12

Hoke, Veronica P.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

264184, 264187, 428373, 428374, 524 35, C08K 541, D01F 804

Patent

active

044540914

ABSTRACT:
The present invention relates to new polymer solutions which make it possible to obtain shaped articles such as yarns and fibres, films, sheets and the like.
These solutions consist of cellulose having a degree of polymerization of at least 200, polyvinyl chloride, dimethyl sulphoxide and formaldehyde, the weight ratio cellulose/polyvinyl chloride being 0.05 to 0.5, preferably 0.1 to 0.5, the ratio formaldehyde/cellulose being 0.2 to 2 and the total polymer concentration being 6 to 20%, preferably 10 to 18%.
Such solutions are particularly suitable for the manufacture of filaments consisting of fibrils substantially orientated along the axis of the fibre and closely interlaced, the cellulose macromolecules being partially involved in a crystal lattice characteristic of cellulose II. The filaments possess valuable properties for textile use.

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