Composition and paper comprising cellulose ester, alkylpolyglycosides, and cellulose
AssigneeEastman Chemical Company
InventorsCharles Michael Buchanan, Eric Eugene Ellery, Matthew Davie Wood
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Abstract
This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture of APG and polyether glycol in paper composed of cellulose ester fibers and cellulose fibers and to calendaring of such paper is also disclosed.
Claims11
Paper made by wet lay forming comprising:
- (a) about 10 to 85% cellulose fibers;
- (b) about 5 to 80% cellulose ester fibers having from 1 to 10 carbon atoms, and:
- (c) about 10 to 30% non-ionic surfactant characterized by having a hydrophilic portion capable of interaction with cellulose ester and/or cellulose and ahydrophobic portion capable of acting as a barrier to water, wherein the non-ionic surfactant is an alklypolyglycoside having the formula:
- wherein R comprises an alkyl group;
- an alklphenyl group;
- a hydroxyalkyl group;
- a hydroxyalkylphenyl group;
- or a combination thereof, wherein the alkyl group contains from 4 to 18 carbon atoms;
- n is from 2 to 4;
- x is from 1 to 10;
- y is from 0 to 10;
- Z is hydrogen or an alkyl group having from 1 to 20 carbon atoms;
- and
- the glycosyl is derived from a carbohydrate or polysacharride.
A paper comprising (a) a cellulosic fiber and a cellulose ester having a first side and a second side and (b) a non-ionic surfactant, wherein the non-ionic surfactant is coated and remains on the first side of the paper and not on the second side of the paper, wherein the non-ionic surfactant comprises an alkylpolyglycoside or a mixture of an alkypolyglycoside and a polyether glycol, wherein the alkylpolyglycoside has the formula:
- wherein R comprises an alkyl group;
- an alkylphenyl group;
- a hydroxyalkyl group;
- a hydroxyalkylphenyl group;
- or a combination thereof, wherein the alkyl group contains from 4 to 18 carbon atoms;
- n is from 2to4;
- x is from 1 to 10;
- y is from 0 to 10;
- Z is hydrogen or an alkyl group having from 1 to 20 carbon atoms;
- and
- the glycosyl is derived from a carbohydrate or polysacharride.
Dependencies are inferred from the claim text.