With Bituminous Or Tarry Residue, Hydrocarbon, Or Naturally Occurring Wax Patents (Class 106/170.56)
  • Substituted Cellulose Acetates and Uses Thereof
    Publication number: 20130195787
    Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: Celanese Acetate LLC
    Inventors: Michael T. Combs, Thomas S. Garrett
  • Integral composite wax-polymer membranes
    Publication number: 20040069185
    Abstract: A composite barrier membrane coated on a substrate and membrane is formed by phase inversion technique utilizing a water-insoluble wax and a water-insoluble polymer dissolved in a solvent. The barrier membrane coated upon the substrate is used to control transmembrane transport of a liquid and a gas. The substrate can be a starch based food package material, a protein based food package materials, a natural fabric, a synthetic fabric, or a paper product.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 15, 2004
    Applicant: Natural Polymer International Corporation
    Inventor: Kangzhuang Jian