Process for preparing a cellllose acetoacetate alkanoates

Details Process for preparing a cellllose acetoacetate alkanoates Process for preparing a cellllose acetoacetate alkanoates

1997-03-10

1998-06-23

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 70, 536 71, 536 72, 536 73, 536 74, 536 75, C08B 306, C08B 102

Patent

active

057707260

ABSTRACT:
The present invention relates to a process for preparing a substituted cellulose acetoacetate alkanoate without using a carboxamide/lithium chloride solvent system. The process involves contacting cellulose in a carboxylic acid diluent with an acetylating compound selected from the group consisting of a carboxylic acid anhydride and an acid chloride, an acetoacetylating compound selected from the group consisting of diketene, an alkyl acetoacetate and 2,2,6-trimethyl-4H-1,3-dioxin-4-one, and a mineral acid catalyst under conditions and in a molar ratio sufficient to cause the cellulose, acetylating compound and acetoacetylating compound to react to produce a substituted cellulose acetoacetate alkanoate.

REFERENCES:
patent: 2500029 (1950-03-01), Hagemeyer, Jr.
patent: 2521897 (1950-09-01), Caldwell
patent: 3846403 (1974-11-01), Gibney et al.
patent: 4016353 (1977-04-01), Goheen et al.
patent: 5292877 (1994-03-01), Edgar et al.
patent: 5360843 (1994-11-01), Edgar et al.
patent: 5420267 (1995-05-01), Edgar et al.
patent: 5521304 (1996-05-01), Edgar et al.
Staudinger and Eicher, Makromol. Chem., 1953, 10, 261-279.
Kirillova and Padchenko (Zh. Prikladnoi Khimii, 1964, 37, 925-927).

Affiliated with

Also associated with

Rating

Process for preparing a cellllose acetoacetate alkanoates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing a cellllose acetoacetate alkanoates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing a cellllose acetoacetate alkanoates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1395622