Patents by Inventor Chyuan-chyuan Wang

Chyuan-chyuan Wang 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).

  • Patent number: 4448936
    Abstract: A polyurethane resin composition having better heat resistance comprises one polyurethane resin; and polyethylene terephthalate resin and/or a polyamide resin, such as nylon 6 resin or nylon 66 resin, in an amount of 8 to 30 parts by weight per 100 parts by weight of the polyurethane resin. The polyurethane resin composition is made by mixing polyethylene terephthalate resin solution with O-chlorophenol as solvent, and/or nylon 6 or nylon 66 resin solution with formic or acetic acid as solvent, with the polyurethane resin solution; and then drying in oven to eliminate the solvent for making the skin of leather-like coated fabrics which is capable of heat transfer printing.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: May 15, 1984
    Inventors: Huei-Hsiung Wang, Chyuan-chyuan Wang