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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 0014161 A2 19800806 - Method of treating a multifilament bundle of pitch fibers and a spin size composition therefor.

Title (en)

Method of treating a multifilament bundle of pitch fibers and a spin size composition therefor.

Title (de)

Verfahren zur Behandlung eines Bündels von Multifilamentfasern aus Pech und eine Zusammensetzung zum Schmälzen dafür.

Title (fr)

Méthode de traitement d'un faisceau multifilament de fibres de brai et composition d'ensimage pour ce traitement.

Publication

EP 0014161 A2 19800806 (EN)

Application

EP 80400136 A 19800128

Priority

US 732179 A 19790129
US 732279 A 19790129

Abstract (en)

A multifilament bundle of pitch fibers is treated with a dispersion of graphite or carbon black in water in which is dissolved a water-soluble oxidizing agent and a water-soluble surfactant.

IPC 1-7

D01F 9/14

IPC 8 full level

D01F 9/145 (2006.01)

CPC (source: EP)

D01F 9/145 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0014161 A2 19800806; EP 0014161 A3 19800917; EP 0014161 B1 19830330; DE 3062488 D1 19830505

DOCDB simple family (application)

EP 80400136 A 19800128; DE 3062488 T 19800128