Cellulose acetate propionate

Details Cellulose acetate propionate Cellulose acetate propionate

1998-11-06

1999-11-02

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 65, C08B 316

Patent

active

059773472

ABSTRACT:
Cellulose acetate propionate is a cellulose ester wherein hydroxyl groups of cellulose are substituted with acetyl and propionyl. Cellulose acetate propionate of the present invention has an amorphous index (Am) of 0.01 to 0.10. The present invention also provides cellulose acetate propionate having a degree of acetyl substitution (DSac) and a degree of propionyl substitution (DSpr) satisfying the formulas (I) to (IV).

REFERENCES:
patent: 5219510 (1993-06-01), Machell et al.
patent: 5288715 (1994-02-01), Machell et al.
patent: 5856468 (1999-01-01), Shuto et al.
C.J.Malm, et al (Eastman Kodak Co.) "Aliphatic Acid Esters of Cellulose" pp. 688-691, Industrial and Engineering Chemistry, vol. 43, No.3 (1951).
A Catalogue of Eastman, Cellulose Esters, Jun./1994, Publication E-146L.

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