EP 0235989 B1 19920506 - METHOD FOR PRODUCING STAIN RESISTANT POLYAMIDE FIBERS
Title (en)
METHOD FOR PRODUCING STAIN RESISTANT POLYAMIDE FIBERS
Publication
Application
Priority
- US 82923286 A 19860214
- US 90049086 A 19860826
Abstract (en)
[origin: EP0235989A1] Polyamide fibers are made stain resistant by treating them with a sulfonated naphthol- or sulfonated phenol-formaldehyde condensation product. Applying the stain-resist compounds at pH values of between 1.5 and 2.5 renders them stable to yellowing upon exposure to agents in the environment such as NO2.
IPC 1-7
IPC 8 full level
D06M 15/41 (2006.01); D06M 101/00 (2006.01); D06M 101/16 (2006.01); D06M 101/30 (2006.01); D06M 101/34 (2006.01)
CPC (source: EP)
D06M 15/412 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0235989 A1 19870909; EP 0235989 B1 19920506; AU 588425 B2 19890914; AU 6869287 A 19870820; BR 8700658 A 19871208; CA 1264505 A 19900123; DE 3778736 D1 19920611; DK 167697 B1 19931206; DK 73587 A 19870815; DK 73587 D0 19870213; JP 2595226 B2 19970402; JP S62223378 A 19871001; MX 164725 B 19920921
DOCDB simple family (application)
EP 87301252 A 19870213; AU 6869287 A 19870211; BR 8700658 A 19870212; CA 529371 A 19870210; DE 3778736 T 19870213; DK 73587 A 19870213; JP 3071987 A 19870214; MX 522987 A 19870213