With Natural Resin Or Derivative Patents (Class 106/144.3)
  • Fibrous blend and method of making
    Patent number: 7749317
    Abstract: A mixed polymer fiber, comprising a crosslinked polymer fiber comprising carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer, and cellulose fiber.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: July 6, 2010
    Assignee: Weyerhaeuser NR Company
    Inventors: S. Ananda Weerawarna, Su Bing
  • Methods for the preparation of mixed polymer superabsorbent fibers containing cellulose
    Patent number: 7717995
    Abstract: A method for making mixed polymer composite fibers containing cellulose fibers in which cellulose fibers are dispersed in an aqueous solution comprising a carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer in water to provide an aqueous fiber dispersion; the aqueous dispersion treated with a first crosslinking agent to provide a gel; the gel mixed with a water-miscible solvent to provide composite fibers; and the composite fibers treated with a second crosslinking agent to provide crosslinked fibers.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: May 18, 2010
    Assignee: Weyerhaeuser NR Company
    Inventors: S. Ananda Weerawarna, Bing Su
  • Fibrous blend and methods of preparation
    Patent number: 7591891
    Abstract: A method for making crosslinked fibers containing cellulose fibers in which an aqueous solution comprising a carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer in water is treated with a first crosslinking agent to provide a gel; the gel mixed with a water-miscible solvent to provide mixed polymer fibers; cellulose fibers are added to the mixed polymer fibers; and these fibers are treated with a second crosslinking agent to provide crosslinked fibers.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: September 22, 2009
    Assignee: Weyerhaeuser NR Company
    Inventors: S. Ananda Weerawarna, Su Bing
  • Composition, kits and method for providing a substrate with barrier properties and uses thereof
    Publication number: 20040081781
    Abstract: The invention concerns a composition for providing a substrate, after said substrate has been coated, with barrier properties to oils and greases, and complementarily to water. The invention is characterised in that it is obtainable by dispersion, at a temperature ranging between room temperature and about 70° C., of at least a film-forming gum or resin, not water-soluble and solubilized in at least a water-miscible solvent, in an aqueous solution containing at least a water soluble and lipophobic film-forming compound selected among proteins, polysaccharides and their mixtures, said composition having a temperature ranging between room temperature and about 70° C. The invention also concerns a method for preparing said composition, kits containing same, and a method for providing a substrate with barrier properties, and their uses, in particular for making packages and particularly packages for foodstuff.
    Type: Application
    Filed: June 27, 2003
    Publication date: April 29, 2004
    Inventors: Charles Corby, Philippe David
  • Encapsulation compositions and process for preparing the same
    Publication number: 20020189493
    Abstract: Encapsulation compositions in which an encapsulate (A) is encapsulated in a matrix (B) may be prepared by:
    Type: Application
    Filed: March 14, 2002
    Publication date: December 19, 2002
    Applicant: MCCORMICK & COMPANY, INC.
    Inventors: Michael A. Porzio, Dmitriy Zasypkin