Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-07-30
1976-04-20
Lee, Lester L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 47XA, 260 78A, 260 78R, 260 78SC, C08G 6904
Patent
active
039519147
ABSTRACT:
This invention relates to novel processes for the preparation of poly(1,4-benzamide) and copolymers thereof containing at least about 80 mol % of ##SPC1##
Units in cyclic sulfone media.
REFERENCES:
patent: 3225011 (1965-12-01), Preston et al.
patent: 3450678 (1969-06-01), Rogers, Jr.
patent: 3453244 (1969-07-01), Preston
patent: 3598864 (1971-08-01), Caldwell et al.
E. I. Du Pont de Nemours and Company
Lee Lester L.
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