C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
402/245, 400/783
C08L 77/10 (2006.01) C08G 69/46 (2006.01) C08J 3/05 (2006.01) D01F 6/60 (2006.01)
Patent
CA 2004951
The acidic crumb of poly(paraphenylene terephthalamide) formed from the reaction of terephthaloyl chloride with para-phenylene diamine in an N- alkyl-pyrrolidone with an alkali or alkaline earth metal salt, is dissolved in a defined mixture of a base, a solvent and a co-solvent for use in the directed preparation of fibrous products.
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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