Fiber-based product
First Claim
1. A fiber-based product comprising hydrocolloid and a cellulose portion having at least some of the hydrocolloid converted to carboxymethyl hydrocolloid and at least some of the cellulose converted to carboxymethyl cellulose.
2 Assignments
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Accused Products
Abstract
Fiber-based products and adhesives comprising the fiber-based products. The fiber-based products comprise carboxymethyl cellulose, carboxymethylated hemicellulose and carboxymethylated starch. The fiber-based product is obtained by simultaneously performing alkali extraction of hydrocolloid from the fiber and carboxylation, with a carboxymethylating agent, thereby converting extracted cellulose to carboxymethyl cellulose and also carboxymethylating some extracted hemicellulose, starch, and hemicellulose-cellulose complexes.
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Citations
33 Claims
- 1. A fiber-based product comprising hydrocolloid and a cellulose portion having at least some of the hydrocolloid converted to carboxymethyl hydrocolloid and at least some of the cellulose converted to carboxymethyl cellulose.
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20. A fiber-based product comprising hydrocolloid and a cellulose portion wherein the hydrocolloid and the cellulose portion are obtained by simultaneous solubilization of fiber by alkali extraction and carboxymethylation with a carboxymethylating agent during which at least some of the hydrocolloid is converted to carboxymethylated hydrocolloid, at least some of the cellulose is converted to carboxymethyl cellulose and carboxymethylated starch and carboxymethylated hydrocolloid-cellulose complexes are formed.
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21. A process for making a fiber-based product comprising the steps of combining at least about 20% to about 70% fiber, about 10% to about 70% alkali, about 10% and about 70% carboxymethylating agent in a means for mixing at a temperature of about 15°
- C. to about 95°
C. and mixing the contents at high shear wherein at least hydrocolloid and cellulose are extracted from the fiber and some or all of the extratcted hydrocolloid and cellulose are carboxymethylated. - View Dependent Claims (22, 23, 24, 25, 26, 27)
- C. to about 95°
- 28. A process for making an adhesive comprising the steps of admixing at least fiber, sufficient alkali to attain a pH from about 10 to about 14, carboxymethylatng agent, starch, and water in a means for mixing and mixing for about 5 minutes to about 60 minutes at high shear wherein at least hydrocolloid and cellulose are extracted from the fiber and some or all of the extracted hydrocolloid and cellulose are carboxymethylated.
Specification