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Current content: 157 117 910 patent documents

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139 301 new documents added

1 340 825 documents amended

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EP 0404145 B1 19940518 - Mixed solvent for aramid spinning dopes.

Title (en)

Mixed solvent for aramid spinning dopes.

Title (de)

Lösungsmittelmischung für Aramid-Spinnlösungen.

Title (fr)

Mélange de solvants pour solution de filage d'aramides.

Publication

EP 0404145 B1 19940518 (EN)

Application

EP 90111744 A 19900621

Priority

US 36910789 A 19890621

Abstract (en)

[origin: EP0404145A2] A room temperature anisotropic spinning solution and associated spinning process are disclosed for poly(p-phenylene terephthalamide) using a solvent mixture of chlorosulfuric acid and sulfuric acid of at least 100% concentration.

IPC 1-7

D01F 6/60

IPC 8 full level

D01D 5/06 (2006.01); D01F 6/60 (2006.01)

CPC (source: EP)

D01F 6/605 (2013.01)

Designated contracting state (EPC)

DOCDB simple family (publication)

EP 0404145 A2 19901227; EP 0404145 A3 19910925; EP 0404145 B1 19940518; CA 2019438 A1 19901221; JP H0351311 A 19910305

DOCDB simple family (application)

EP 90111744 A 19900621; CA 2019438 A 19900620; JP 16393390 A 19900621