Process for the preparation of viscose

Details Process for the preparation of viscose Process for the preparation of viscose

1978-08-04

1980-07-01

Corbin, Arthur L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

8116R, 81164, 8120, 8181, 162 72, 162 77, 162 90, C08B 900, D21C 900

Patent

active

042107474

ABSTRACT:
A process for the preparation of viscose by adding to cellulose pulp, manufactured by alkali cooking without prehydrolysis or by acid cooking without alkali extraction, steeping lye and an organic compound, steeping the pulp to form alkali cellulose, aging the alkali cellulose, xanthating the aged alkali cellulose with carbon disulfide to obtain cellulose xanthate and dissolving the cellulose xanthate to obtain viscose.

REFERENCES:
patent: 2042705 (1936-06-01), Dreyfus
patent: 2716058 (1955-08-01), Rapson et al.
patent: 2767170 (1956-10-01), Graybeal et al.
patent: 2789902 (1957-04-01), Seymour et al.
patent: 2898334 (1959-08-01), Mitchell et al.
patent: 3536697 (1970-10-01), Kolosh et al.

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