C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/33
C08G 63/06 (2006.01) C08G 63/60 (2006.01) C08G 63/682 (2006.01)
Patent
CA 1168398
ABSTRACT Fiber-formins aromatic polyester consisting essentially of 1,4-dioxyphenylene units, lower alkyl or halo-1,4-dioxyphenylene units, terephthaloyl units and 3-carbonyl-4'-oxybenzophenone or 4-carbonyl-4'-oxybenzophenone units or chloro- and/or methyl substituted homologs of these.
406656
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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