EP 1230331 A1 20020814 - USE OF LAMELLAR CRYSTALLITES AS EXTREME PRESSURE ADDITIVES IN AQUEOUS LUBRICANTS, LAMELLAR CRYSTALLITES AND METHOD FOR OBTAINING SAME
Title (en)
USE OF LAMELLAR CRYSTALLITES AS EXTREME PRESSURE ADDITIVES IN AQUEOUS LUBRICANTS, LAMELLAR CRYSTALLITES AND METHOD FOR OBTAINING SAME
Title (de)
VERWENDUNG VON LAMELLARKRISTALLEN ALS HOHDRUCK-ADDITIVE IN WÄSSRIGEM SCHMIERMITTEL, HOHDRUCK-ADDITIVE UND IHRE HERSTELLUNG
Title (fr)
UTILISATION DE CRISTALLITES LAMELLAIRES EN TANT QU'ADDITIFS EXTREME-PRESSION DANS DES LUBRIFIANTS AQUEUX, CRISTALLITES LAMELLAIRES ET LEUR OBTENTION
Publication
Application
Priority
- FR 0002944 W 20001023
- FR 9913139 A 19991021
Abstract (en)
[origin: US6806238B1] The invention concerns the use as extreme pressure additive in aqueous lubricants used for deforming or transforming metals, lamellar crystallites having a length (L) ranging between 0.1 and 100 mum, a width (I) ranging between 0.5 and 30 mum and a thickness (e) ranging between 5 and 200 nm, comprising a stack of organic phases (O) and of aqueous solutions (A) in the sequence O/[A/O]n, n being an integer different from 0 and such that the stack has a thickness between 5 and 200 nm, the organic phases comprising: i) at least an acid selected among: carboxylic acid, saturated or unsaturated, comprising at least 5 carbon atoms, acid phosphate esters of formula (RO)x-P(=O)(OH)x' wherein R is a hydrocarbon radical, optionally polyalkoxylated, x and x' being equal to 1 or 2, provided that the sum of x and x' is equal to 3, said acid being optionally neutralized by an organic or mineral base; and at least a metal in the form of a multivalent ion; or (ii) at least a polyalkylene block polymer having a cloud point preferably ranging between 30 and 90° C. The invention also concerns said lamellar crystallites and a method for obtaining them.
IPC 1-7
IPC 8 full level
C10M 129/26 (2006.01); C10M 137/04 (2006.01); C10M 145/26 (2006.01); C10M 171/06 (2006.01); C10M 173/02 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 10/16 (2006.01); C10N 20/00 (2006.01); C10N 20/04 (2006.01); C10N 20/06 (2006.01); C10N 30/06 (2006.01); C10N 40/24 (2006.01)
CPC (source: EP KR US)
C10M 171/06 (2013.01 - EP KR US); C10M 173/02 (2013.01 - EP US); C10N 2020/06 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6806238 B1 20041019; AT E292668 T1 20050415; AU 1033001 A 20010430; AU 772577 B2 20040429; BR 0014935 A 20020611; BR 0014935 B1 20110322; CA 2387820 A1 20010426; CA 2387820 C 20070501; CN 100345950 C 20071031; CN 1382203 A 20021127; DE 60019327 D1 20050512; DE 60019327 T2 20060504; EP 1230331 A1 20020814; EP 1230331 B1 20050406; ES 2235968 T3 20050716; FR 2800091 A1 20010427; FR 2800091 B1 20050128; JP 2003528940 A 20030930; JP 2009287030 A 20091210; KR 100523717 B1 20051026; KR 20020052192 A 20020702; MX PA02003685 A 20031014; WO 0129159 A1 20010426
DOCDB simple family (application)
US 11100202 A 20020724; AT 00971481 T 20001023; AU 1033001 A 20001023; BR 0014935 A 20001023; CA 2387820 A 20001023; CN 00814568 A 20001023; DE 60019327 T 20001023; EP 00971481 A 20001023; ES 00971481 T 20001023; FR 0002944 W 20001023; FR 9913139 A 19991021; JP 2001531946 A 20001023; JP 2009184750 A 20090807; KR 20027005010 A 20020419; MX PA02003685 A 20001023