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US 9,212,290 B2Granted
Substituted cellulose acetates and uses thereof
AssigneeCelanese Acetate LLC
InventorsMichael T. Combs, Thomas S. Garrett
Life of this patent
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Abstract
The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a composition having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.
Claims9
A composition comprising:
- a substituted cellulose acetate comprising a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group consisting of:
- sulfur, phosphorus, and boron;
- wherein a degree of polar substituent substitution is about 0.005 to 0.05.
An adhesive composition comprising:
- a substituted cellulose acetate and an additive dispersed in a solvent, the substituted cellulose acetate comprising a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group consisting of:
- sulfur, phosphorus, and boron;
- wherein a degree of polar substituent substitution is about 0.005 to 0.05 and a degree of acetate substituent substitution is about 2 to 3;
- and
- the additive selected from the group consisting of:
- a multi-valent salt, a polyamide epichlorohydrin resin, an aldehyde, a formaldehyde crosslinker, a polyvinyl acetate, a polyvinyl alcohol, a polystyrene, a polylactic acid, any derivative thereof, and any combination thereof.
3 more elements
Dependencies are inferred from the claim text.