Catalyst for and method of preparing cellulose esters

Details Catalyst for and method of preparing cellulose esters Catalyst for and method of preparing cellulose esters

1980-08-29

1982-02-02

Clingman, A. Lionel

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

Organic compounds

Carbohydrates or derivatives

252437, 536 69, C08B 300

Patent

active

043140564

ABSTRACT:
Disclosed is a catalyst composition and a method of preparing lower fatty acid esters of cellulose which comprises esterifying at a temperature of between about 75.degree. C. and about 110.degree. C. a cellulose compound having esterifiable hydroxyl groups with an esterifying bath comprising an organic acid anhydride, a diluent, and a catalyst comprising from about 25 to about 75% by weight sulfuric acid and about 75 to about 25% by weight phosphoric acid, the catalyst being used in amounts of from about 0.3 to about 0.8% by weight based on the weight of cellulose.

REFERENCES:
patent: 2353255 (1944-07-01), Malm et al.
patent: 2816887 (1957-12-01), Lamborn
patent: 2861069 (1958-11-01), Touey et al.
patent: 3976595 (1976-08-01), Scott et al.
patent: 4016353 (1977-04-01), Goheen et al.
Sagatova, T. A. et al., Chem. Abstracts, 1981, 94, 49001f.
Badalov, B. D. et al., Chem. Abstracts, 1981, 94, 49002g.

Affiliated with

Also associated with

Rating

Catalyst for and method of preparing cellulose esters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst for and method of preparing cellulose esters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst for and method of preparing cellulose esters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1822060