EP 4056669 A1 20220914 - LOW VISCOSITY FUNCTIONAL FLUID COMPOSITION
Title (en)
LOW VISCOSITY FUNCTIONAL FLUID COMPOSITION
Title (de)
NIEDRIGVISKOSE FUNKTIONSFLÜSSIGKEITSZUSAMMENSETZUNG
Title (fr)
COMPOSITION DE LIQUIDE FONCTIONNELLE AVEC UNE VISCOSITÉ BASSE
Publication
Application
Priority
EP 21162202 A 20210312
Abstract (en)
This invention relates to a functional fluid, comprising(A) from 8 to 80% by weight, based on the total composition, of one or more ortho-ester according to formula (I)whereinR1, R2, R3are independently selected from H or C<sub>1</sub> to C<sub>8</sub> alkyl groups, preferably methyl or butyl,R4means H or C<sub>1</sub> to C<sub>8</sub> alkyl, preferably H or methyl,a, b, care independently numbers from 0 to 6, preferably 3 or 4,with the proviso that a+b+c is at least 1,(B) from 10 to 87% by weight, based on the total composition, of one or more alkoxy glycol according to formula (II) R<sub>5</sub> - O - (CH<sub>2</sub> - CH<sub>2</sub> - O)<sub>m</sub> - H (II)whereinR<sub>5</sub>is a C<sub>1</sub> to C<sub>8</sub> alkyl residue,mis a number from 2 to 6,(C) from 0 to 20 wt.-% of at least one compound according to formula (III) H -O- (CH<sub>2</sub> - CH<sub>2</sub> - O)<sub>k</sub> - H (III)wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III) k is 2 or 3,(D) at least one additive, selected from the group consisting of corrosion inhibitor, alkalinity agents, aging protection agents, defoamers and lubricants,the fluid comprising at most 3 wt.-% of an ester between boric acid and a glycol or polyglycol compound, andwith the proviso that the combined amount of component (A) and component (B) adds up to at least 70 % of the total fluid weight.
IPC 8 full level
C10M 107/34 (2006.01)
CPC (source: EP)
C10M 107/34 (2013.01); C10M 2207/04 (2013.01); C10M 2207/046 (2013.01); C10M 2207/124 (2013.01); C10M 2209/1045 (2013.01); C10M 2209/1085 (2013.01); C10N 2020/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/26 (2020.05); C10N 2040/08 (2013.01)
C-Set (source: EP)
Citation (applicant)
- WO 0065001 A1 20001102 - BASF AG [DE], et al
- WO 0238711 A1 20020516 - UNION CARBIDE CHEM PLASTIC [US]
- US 4371448 A 19830201 - KNOBLAUCH WOLFGANG [DE], et al
- EP 0750033 A1 19961227 - BP CHEM INT LTD [GB], et al
- EP 0617116 A1 19940928 - BP CHEM INT LTD [GB], et al
- WO 2012003117 A1 20120105 - DOW GLOBAL TECHNOLOGIES LLC [US], et al
- EP 0129240 A1 19841227 - MONTEDISON SPA [IT]
- DE 3627432 A1 19880218 - HOECHST AG [DE]
- GB 1330468 A 19730919 - CASTROL LTD
- DE 3627432 C2 19901031
- US 2006264337 A1 20061123 - WENDEROTH BERND [DE], et al
- WO 2007005593 A2 20070111 - DOW GLOBAL TECHNOLOGIES INC [US], et al
- EP 0129240 A1 19841227 - MONTEDISON SPA [IT]
Citation (search report)
- [AD] GB 1330468 A 19730919 - CASTROL LTD
- [AD] WO 2007005593 A2 20070111 - DOW GLOBAL TECHNOLOGIES INC [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4056669 A1 20220914; EP 4305131 A1 20240117; WO 2022189047 A1 20220915
DOCDB simple family (application)
EP 21162202 A 20210312; EP 2022050757 W 20220114; EP 22701202 A 20220114