Title: Trisazo polyester materials

Abstract: Polyester fibers, particularly poly(ethylene terephthalate), is dyed in bright, fast shades with p,p'"-dihydroxytrisazo compounds.

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Inventors: Renfrew, Edgar E. (Flemington, PA, US)
Zanella, Dominic A. (Lock Haven, PA, US)

Application Number: 422864
Filing Date: 1973-12-07
Publication_date: 1976-03-02
Assignee: American Aniline Products, Inc. (Paterson, NJ)
Primary Class(es): 8/687 8/922, 534/809
Other Classes:
US Patent Ref:

2090938	Aug, 1937	Conrad	260/169.
2362548	Nov, 1944	Gyr	260/169.

Other Refs:
Primary Examiner: Henderson, Christopher A.
Assistant Examiner:
Attorney: Armstrong, Nikaido & Wegner