Patents by Inventor Chi-Fei Ling

Chi-Fei Ling 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).

  • Thermosetting crosslinked imide resin from bis-imide and polyamine
    Patent number: 4731436
    Abstract: A thermosetting cross-linked imide resin formed from the reaction of an amine having the formula ##STR1## wherein E and F are trivalent and tetravalent groups, respectively, and A is a divalent group with at least 2 carbon atoms; with an N,N'-bis-imide of an unsaturated dicarboxylic acid having the formula: ##STR2## wherein B is a divalent group containing a --C.dbd.C-- bond, and A' is a divalent group with at least two carbon atoms.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: March 15, 1988
    Assignee: BTL Specialty Resins Corporation
    Inventor: Chi-Fei Ling
  • Process for sizing textile materials
    Patent number: 4515855
    Abstract: This invention is to a process for sizing textile materials by treatment with copolymers, and/or multipolymers, of acrylamide, the products thereby obtained and the sizing compositions used.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: May 7, 1985
    Assignee: American Cyanamid Company
    Inventor: Chi-Fei Ling
  • Process for sizing textile yarns
    Patent number: 4410588
    Abstract: This invention relates to a process for sizing textile yarns by treatment with copolymers, and/or multipolymers, of acrylamide, and to the products thereby obtained. Said composition comprises an aqueous solution of a segmented copolymer of acrylamide and at least one vinyl or vinylidene polymerizable monomer, the amount of the monomer being at a concentration from about 1% to about 40%, based on the weight of acrylamide in the composition.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: October 18, 1983
    Assignee: American Cyanamid Company
    Inventor: Chi-Fei Ling
  • Imidazolidinones in a durable press process
    Patent number: 4306872
    Abstract: This invention relates to imidazolidinones and the use of the same to impart durable press properties to cellulosic textile materials. More particularly, it relates to novel imidazolidinones which release environmentally acceptable amounts of formaldehyde during the application and curing on said cellulosic textile materials.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: December 22, 1981
    Assignee: American Cyanamid Company
    Inventors: William F. Herbes, Chi-Fei Ling, William N. Nakajima