Preparation of water-insoluble carboxymethyl cellulose absorbent

Details Preparation of water-insoluble carboxymethyl cellulose absorbent Preparation of water-insoluble carboxymethyl cellulose absorbent

1978-05-17

1980-04-29

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 88, 536 98, C08B 1120

Patent

active

042007364

ABSTRACT:
A process for the preparation of a substantially water-insoluble, particulate sodium salt of carboxymethyl cellulose, suitable for use as an absorbent in tampons and other catamenial devices or the like. The process involves heating solid, water-soluble sodium carboxymethyl cellulose, having a degree of substitution of at least 0.4, with carbon dioxide gas to substantially insolubilize the carboxymethyl cellulose and convert it to a form suitable for absorbent applications.

REFERENCES:
patent: 2447757 (1948-08-01), Lilienfeld
patent: 2639239 (1953-05-01), Elliott
patent: 2766137 (1956-10-01), Ashton et al.
patent: 3322748 (1967-05-01), Tokimatsu et al.
patent: 3379721 (1968-04-01), Reid
patent: 3731686 (1973-05-01), Chatterjee

Affiliated with

Also associated with

Rating

Preparation of water-insoluble carboxymethyl cellulose absorbent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of water-insoluble carboxymethyl cellulose absorbent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of water-insoluble carboxymethyl cellulose absorbent will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1684699