C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/191, 402/205
C08G 63/60 (2006.01) C08G 63/68 (2006.01) C08G 63/682 (2006.01)
Patent
CA 1142687
ABSTRACT OF THE DISCLOSURE An aromatic polyester consisting essentially of p-oxybenzoyl units or the 3-methyl or 3-chloro- derivatives thereof, 4,4'-dioxybenzophenone units or the 3-methyl- or 3-chloro- derivatives thereof, terephthaloyl units and optionally 1,4-dioxyphen- ylene units.
360353
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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