Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1980-03-24
1982-06-22
Griffin, Ronald W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 70, 536 71, C08B 102
Patent
active
043363709
ABSTRACT:
Treatment of dissolving pulp derived from wood with small quantities of C.sub.2 -C.sub.18 carboxylic acids and subsequent storage of the treated pulp, under conditions where little acid evaporation can occur, for periods of about two hours or more results in a product which has more uniform reactivity toward standard activation techniques in subsequent esterification reactions which produce known cellulose esters. At certain concentrations conventional activation techniques may be dispensed with.
REFERENCES:
patent: 1783184 (1930-12-01), Dreyfus et al.
patent: 4016353 (1977-04-01), Goheen et al.
Nelson et al., Preprints of a Technical Association of the Pulp and Paper Industry (Tappi), Dissolving Pulp Conference, Atlanta, Georgia, Oct. 24 to 26, 1976, pp. 69-82.
Kuznetzova et al., Journal of Applied Chemistry of the USSR, vol. 37, pp. 399-408 (1964).
MacDonald Donald M.
Yasnovsky V. M.
Bright Royal E.
Griffin Ronald W.
International Paper Company
Zielinski Walt Thomas
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