Patents by Inventor Cyrus Tamaddon

Cyrus Tamaddon 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).

  • Production of low shrink polyester fiber
    Patent number: 4070432
    Abstract: A low shrinkage polyester fiber is produced by melt-spinning a polyester polymer under conditions of substantially simultaneous spinning, drawing, and heat treating, using carefully controlled conditions whereby the fiber has uniform properties of breaking strength in grams per denier of at least 7.0, elongation at break in percent of 18 to 30, and a residual thermal shrinkage measured in an oven at 350.degree. F. for one minute of lower than 3 percent. The low shrinkage polyester fibers are particularly useful in the preparation of reinforced elastomeric structures.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: January 24, 1978
    Assignee: Allied Chemical Corporation
    Inventor: Cyrus Tamaddon