Title:
金属表面活性化用水性分散体および金属表面のリン酸塩処理方法
Document Type and Number:
Japanese Patent JP7390318
Kind Code:
B2
Abstract:
The present invention relates to an aqueous dispersion as a concentrate for the activation stage of phosphating of metal surfaces, containing a dispersed particulate constituent and a thickener, the particulate constituent containing, in addition to dispersed inorganic compounds of polyvalent metal cations, polymeric organic compounds as dispersing agents which are composed at least partially of styrene and/or an α-olefin having no more than 5 carbon atoms and maleic acid, its anhydride and/or its imide, and which additionally comprise polyoxyalkylene units. The aqueous dispersion is further characterized by a D50 value above 10 μm. The present invention also relates to a method for anti-corrosion pretreatment of the surfaces of a metal material, in particular for zinc phosphating.
Inventors:
Christina Angelent
Jan-Willem Brouwell
Hendrik Busman
Franz-Adolf Zika
Ralph Posner
Zebastian Bach
Christoph Wapner
Jan-Willem Brouwell
Hendrik Busman
Franz-Adolf Zika
Ralph Posner
Zebastian Bach
Christoph Wapner
Application Number:
JP2020568765A
Publication Date:
December 01, 2023
Filing Date:
June 07, 2019
Export Citation:
Assignee:
Henkel AG & Co. KGaA
International Classes:
C09D125/08; C09C1/00; C09C3/10; C09D5/02; C09D7/61; C09D171/02; C23C22/78
Domestic Patent References:
| JP2006001960A | ||||
| JP5050029A | ||||
| JP2005306905A | ||||
| JP2017170305A |
Attorney, Agent or Firm:
Michiko Matsutani
Kenichi Morizumi
Kenichi Morizumi