Patents by Inventor Shau-Gan Chang

Shau-Gan Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Modified urea-formaldehyde binder for making fiber mats
    Patent number: 6084021
    Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with a water-soluble styrene-maleic anhydride copolymer is used in the preparation of fiber mats.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: July 4, 2000
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Shau-Gan Chang, Larry R. Graves, Charles R. Hunter, Stacey L. Wertz
  • Modified urea-formaldehyde binder for making fiber mats
    Patent number: 5914365
    Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with a water-soluble styrene-maleic anhydride copolymer is used in the preparation of fiber mats.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 22, 1999
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Shau-Gan Chang, Larry R. Graves, Charles R. Hunter, Stacey L. Wertz
  • Caseinate replacement composition for imitation cheese and process for making imitation cheese
    Patent number: 5486375
    Abstract: The caseinate replacement composition for imitation cheese is made of a granular hydroxypropylated, high amylose starch having a degree of substitution of greater than 0.04, gelatin and a gum such as pectin and carrageenan. The gum is used to decrease the amount of gelatin necessary and to improve the texture of the overall cheese analog. The caseinate replacement composition replaces all or a portion of the caseinate in the imitation cheese.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: January 23, 1996
    Assignee: American Maize Technology, Inc.
    Inventors: David Yoder, Shau-Gan Chang, Ansui Xu, Thomas Domoras
  • Thick-thin retort starch
    Patent number: 5192576
    Abstract: The thick-thin retort starch is an oxidized, hydroxy alkylated starch. The base starch is either a waxy or a root starch. The degree of substitution is up to 0.93 and the etherification agent is ethylene oxide or propylene oxide. The oxidation step is conducted after the etherification. Oxidation is accomplished with sodium or calcium hypochlorite at a pH of 4 to 5. A non-substituted, oxidized waxy or root starch also has thick-thin properties.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: March 9, 1993
    Assignee: American Maize-Products Company
    Inventors: Shau-Gan Chang, Linda L. Charlton, Jane D. Gottneid, Ibrahim R. Abbas