Polypyromellitimide filaments

Details Polypyromellitimide filaments Polypyromellitimide filaments

D - Textiles, Paper

01

F

402/221

D01F 6/74 (2006.01) C08G 73/10 (2006.01) C08G 73/14 (2006.01)

Patent

CA 1247789

Title Polypyromellitimide Filaments Abstract of the Disclosure Polypyromellitimide filaments having high strength and high modulus are obtained by dry-spinning a solution of polyamide-acid of polypyromellitic dianhydride, 3,4'-oxydianiline and paraphenylenediamine, substituted derivatives thereof or 4,4'-diaminobiphenyl or 4,4'-diaminobenzanilide, then converting the polyamide-acid to the polyimide and drawing.

522119

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