EP 0321393 B1 19930217 - OPTICAL BRIGHTENER DISPERSION
Title (en)
OPTICAL BRIGHTENER DISPERSION
Publication
Application
Priority
CH 463187 A 19871127
Abstract (en)
[origin: US5053055A] There are disclosed aqueous dispersions comprising water-insoluble or sparingly soluble fluorescent whitening agents, dispersants, further optional assistants and a copolymer of 2-vinylpyrrolidone and 3-vinylpropionic acid, their preparation and the use thereof for whitening textile fibre materials. These novel dispersions are storage-stable.
IPC 1-7
IPC 8 full level
C09B 57/00 (2006.01); C09B 57/02 (2006.01); C09B 57/08 (2006.01); C09K 11/06 (2006.01); D06L 3/12 (2006.01); D06L 4/65 (2017.01); D06L 4/664 (2017.01); E21B 43/247 (2006.01)
CPC (source: EP US)
D06L 4/65 (2016.12 - EP US); D06L 4/664 (2016.12 - EP US); E21B 43/247 (2013.01 - EP US); Y10S 8/922 (2013.01 - US)
Designated contracting state (EPC)
CH DE ES FR GB LI
DOCDB simple family (publication)
EP 0321393 A1 19890621; EP 0321393 B1 19930217; DE 3878540 D1 19930325; ES 2053806 T3 19940801; JP H01170660 A 19890705; MX 168868 B 19930611; US 5053055 A 19911001
DOCDB simple family (application)
EP 88810793 A 19881118; DE 3878540 T 19881118; ES 88810793 T 19881118; JP 29637988 A 19881125; MX 1393688 A 19881125; US 27523688 A 19881122