Assertion: polyester | /r/HasProperty | developed in year
Facets:
Source sentences:
text: Polyester was developed in the years 1939-1941 by British chemists at Calico Printers Association, Ltd., based on the work of W.H. Carothers in 1926 at the United States based E.I.D. Pont de Nemours and Co. DuPont bought the rights in 1946 to produce polyester fiber in the United States.