Homogeneous hydroxy-alkylation of cellulose

Details Homogeneous hydroxy-alkylation of cellulose Homogeneous hydroxy-alkylation of cellulose

1976-05-04

1977-05-17

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

252364, 252DIG4, 536 96, C08B 1100

Patent

active

040243354

ABSTRACT:
A solvent mixture consisting of dimethyl sulfoxide and formaldehyde is used for the hydroxy-alkylation of cellulose.

REFERENCES:
patent: 1234720 (1917-07-01), Bloch-Pimentel
patent: 1863208 (1932-06-01), Schorger
patent: 2679449 (1954-05-01), Schappel
patent: 3023183 (1962-02-01), Nelson
patent: 3236669 (1966-02-01), Williams
patent: 3278521 (1966-10-01), Klug
patent: 3644082 (1972-02-01), Berni et al.
"The New Cellulose Solvent: Dimethyl Sulfoxide-Paraformaldehyde", Johnson et al., 39th Executive Conference, The Institute of Paper Chemistry, Appleton, Wisconsin, May 8, 1975.
"Dimethyl Sulfoxide/Paraformaldehyde: A Nondegrading Solvent for Cellulose", Johnson et al., Technical Paper Series No. 5, Apr. 1975 (first presented at The Eighth Cellulose Conference at Syracuse, New York, May 19-23, 1975.

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