EP 1006177 A1 20000607 - Enamel safe cleaning process
Title (en)
Enamel safe cleaning process
Title (de)
Emailfreundliches Reinigungsverfahren
Title (fr)
Procédé de nettoyage compatible avec de l'émail
Publication
Application
Priority
EP 98870262 A 19981202
Abstract (en)
The present invention describes a process of cleaning an enamel surface with a liquid acidic composition comprising an enamel safe acid wherein the pKa of said acid is 3.5 or higher; with the proviso that no mono-lower alkyl ethers or phenyl ethers or benzyl ethers of diethylene glycol, wherein the lower alkyl is of 2 to 6 carbon atoms, are present in said composition. The composition employed in said process is safe to enamel.
IPC 1-7
IPC 8 full level
C11D 17/08 (2006.01); C11D 3/02 (2006.01); C11D 3/04 (2006.01); C11D 3/20 (2006.01); C11D 3/43 (2006.01); C11D 7/08 (2006.01); C11D 7/26 (2006.01); C11D 7/50 (2006.01); C11D 11/00 (2006.01)
CPC (source: EP)
C11D 3/2075 (2013.01); C11D 3/2082 (2013.01); C11D 2111/14 (2024.01); C11D 2111/24 (2024.01)
Citation (search report)
- [X] DD 138782 A1 19791121 - GALLUS MICHAEL
- [X] EP 0589761 A1 19940330 - COLGATE PALMOLIVE CO [US]
- [X] BE 773757 A 19720131 - COLGATE PALMOLIVE CO
- [X] DD 290019 A5 19910516 - CHEMIEWERK VEB [DE]
- [X] DATABASE WPI Week 9241, Derwent World Patents Index; AN 92-334382, XP002102818
- [X] DATABASE WPI Week 7935, Derwent World Patents Index; AN 79-64433b, XP002102819
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 1006177 A1 20000607; AU 1834900 A 20000619; CA 2350770 A1 20000608; EP 1135456 A1 20010926; JP 2002531634 A 20020924; TR 200101582 T2 20011022; WO 0032737 A1 20000608; ZA 200104001 B 20020816
DOCDB simple family (application)
EP 98870262 A 19981202; AU 1834900 A 19991129; CA 2350770 A 19991129; EP 99961854 A 19991129; JP 2000585368 A 19991129; TR 200101582 T 19991129; US 9928179 W 19991129; ZA 200104001 A 20010516