Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
1977-04-11
1979-02-27
Levin, Stanford M.
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
536 59, C08B 514, C08L 116
Patent
active
041417461
ABSTRACT:
A water-soluble sulfate ester of cellulose having a degree of substitution of about 0.3 to about 1.0 with a substantially uniform distribution of sulfate ester groups among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble sulfate ester of cellulose having a degree of substitution of about 0.3 to about 1.0.
A water-insoluble sulfate ester of cellulose which is highly swellable in the presence of water and has a degree of substitution of up to about 0.3 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose.
A water-soluble colloidal cellulose sulfate ester having a degree of substitution of about 1.3 to about 2 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble cellulose sulfate ester having a degree of substitution of about 1.3 to about 2.0.
A water-soluble colloidal cellulose sulfate ester having a degree of substitution of about 1.0 to about 1.3 with the sulfate ester groups being substantially uniformly distributed among the polymer units of the cellulose. A thickened aqueous medium containing water and said water-soluble sulfate ester having a degree of substitution of about 1.0 to about 1.3.
REFERENCES:
patent: 2714591 (1955-08-01), Klug et al.
patent: 2753337 (1956-07-01), Klug
patent: 2776911 (1957-01-01), Gregory
patent: 2862922 (1958-12-01), Sparrow et al.
patent: 3507855 (1970-04-01), Whistler
patent: 3527810 (1970-09-01), Pettit
patent: 3720659 (1973-03-01), Guiseley et al.
LandOfFree
Cellulose sulfate 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 Cellulose sulfate esters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellulose sulfate esters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-721157