EP 0977908 A4 20000607 - CONDITIONING METAL SURFACES PRIOR TO PHOSPHATE CONVERSION COATING
Title (en)
CONDITIONING METAL SURFACES PRIOR TO PHOSPHATE CONVERSION COATING
Title (de)
KONDITIONIEREN EINER MATALLOBERFLÄCHE VOR DEM PHOSPHATKONVERSIONSBESCHICHTEN
Title (fr)
CONDITIONNEMENT DE SURFACES METALLIQUES PREALABLEMENT A LA PHOSPHATATION
Publication
Application
Priority
- JP 5218197 A 19970307
- US 9803934 W 19980309
Abstract (en)
[origin: WO9839498A1] A pretreatment before phosphating conversion coating is effected by contacting a metal substrate to be coated with a pretreatment composition that has a pH from 4 to 13 and contains dispersed fine particle size alkali metal or ammonium salts and divalent or trivalent metal phosphates. The conditioning achieved is as good as with conventional Jernstedt salts and the pretreatment compositions according to the invention are more storage stable.
IPC 1-7
IPC 8 full level
C23C 22/07 (2006.01); C23C 22/78 (2006.01)
CPC (source: EP KR)
C23C 22/00 (2013.01 - KR); C23C 22/78 (2013.01 - EP)
Citation (search report)
- [X] FR 2375340 A1 19780721 - PRODUITS IND CIE FSE [FR]
- [X] FR 2172073 A1 19730928 - PARKER STE CONTINENTALE [FR]
- [X] FR 1531888 A 19680705 - PARKER STE CONTINENTALE
- [A] FR 2461020 A1 19810130 - PRODUITS IND CIE FSE
- [A] FR 2286889 A1 19760430 - PARKER STE CONTINENTALE [FR]
- [DA] DE 1546070 A1 19690626 - YAWATA IRON & STEEL CO & JP S401095 B1
- [A] WO 9508007 A1 19950323 - BRENT INT PLC [GB], et al
- [X] CHEMICAL ABSTRACTS, vol. 84, no. 22, 31 May 1976, Columbus, Ohio, US; abstract no. 154092c, MIZNO H.: "phosphate treatment of steel sheet and galvanized steel" page 239; XP002135087 & JP S50153736 A 19751211
- [X] CHEMICAL ABSTRACTS, vol. 96, no. 24, 14 June 1982, Columbus, Ohio, US; abstract no. 203812w, SORKIN G. N.: "Possibility of activating a metal surface in a suspension of sludge from zinc phosphate baths" page 265; XP002135088 & IZV. SIB. OTD. AKAD. NAUK SSSR, vol. 6, no. 6, - 1981, pages 147 - 150
- See references of WO 9839498A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9839498 A1 19980911; AU 6673698 A 19980922; CA 2283387 A1 19980911; CA 2283387 C 20070703; CN 1197849 A 19981104; CN 1198958 C 20050427; DE 69817803 D1 20031009; DE 69817803 T2 20040701; EP 0977908 A1 20000209; EP 0977908 A4 20000607; EP 0977908 B1 20030903; ES 2205456 T3 20040501; ID 20532 A 19990107; JP 3451334 B2 20030929; JP H10245685 A 19980914; KR 100473603 B1 20050829; KR 19980079984 A 19981125; MY 124633 A 20060630; TW 371675 B 19991011; ZA 981796 B 19980907
DOCDB simple family (application)
US 9803934 W 19980309; AU 6673698 A 19980309; CA 2283387 A 19980309; CN 98105466 A 19980309; DE 69817803 T 19980309; EP 98908792 A 19980309; ES 98908792 T 19980309; ID 980332 A 19980306; JP 5218197 A 19970307; KR 19980007469 A 19980306; MY PI9800677 A 19980218; TW 87103138 A 19980304; ZA 981796 A 19980303