Solution of polyhydroxy methylene and products made therefrom

Details Solution of polyhydroxy methylene and products made therefrom Solution of polyhydroxy methylene and products made therefrom

1977-11-25

1978-12-26

Marquis, Melvyn I.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

260 296Z, 260 296M, 260 296MM, 264176F, 264184, D01D 508

Patent

active

041316690

ABSTRACT:
Certain solutions of lithium halides particularly solutions of lithium chloride dissolved readily poly(hydroxymethylene) and copolymers of hydroxymethylene with up to about 30 mol percent of ethylenically unsaturated comonomers at high concentrations suitable for solution spinning. Such solutions are desirable for commercial operation as well as preferred from an economical and toxicological point of view.

REFERENCES:
patent: 3331800 (1967-07-01), Schubel et al.
patent: 3344102 (1967-09-01), Hoffman et al.
patent: 4076680 (1978-02-01), Akkapeddi et al.

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