EP 3052597 A1 20160810 - ENVIRONMENTAL SUBSEA CONTROL HYDRAULIC FLUID COMPOSITIONS
Title (en)
ENVIRONMENTAL SUBSEA CONTROL HYDRAULIC FLUID COMPOSITIONS
Title (de)
UMWELTVERTRÄGLICHE HYDRAULIKFLÜSSIGKEITSZUSAMMENSETZUNGEN ZUR UNTERWASSERKONTROLLE
Title (fr)
COMPOSITIONS DE FLUIDE HYDRAULIQUE DE RÉGULATION ENVIRONNEMENTALE SOUS-MARINE
Publication
Application
Priority
- US 201314041669 A 20130930
- US 2014058238 W 20140930
Abstract (en)
[origin: WO2015048716A1] An aqueous hydraulic fluid composition comprising (i) a salt of formic acid, and (ii) one or more lubricants such as a monovalent metal salt, ammonium, or amine salt of a dicarboxylic acid, is described in which the aqueous hydraulic fluid composition demonstrates increased thermal stability when exposed to elevated temperatures for a prolonged period of time while being able to tolerate the presence of 10% v/v synthetic seawater. The aqueous hydraulic fluid composition contains less than about 20% by weight (preferably none or substantially none) of an oil selected from the group consisting of mineral oils, synthetic hydrocarbon oils, and mixtures thereof. The hydraulic fluid preferably contains no glycols in some embodiments. The pH of the hydraulic fluid is preferably from 8 to 10 and is maintained by a buffer which preferably comprises borax in some embodiments.
IPC 8 full level
C10M 125/10 (2006.01); C10M 129/26 (2006.01); C10N 30/12 (2006.01)
CPC (source: EP)
C10M 129/26 (2013.01); C10M 173/02 (2013.01); C10M 2201/087 (2013.01); C10M 2207/08 (2013.01); C10M 2207/121 (2013.01); C10M 2207/123 (2013.01); C10M 2207/127 (2013.01); C10M 2215/04 (2013.01); C10M 2215/042 (2013.01); C10M 2215/14 (2013.01); C10M 2215/222 (2013.01); C10M 2215/225 (2013.01); C10M 2219/044 (2013.01); C10M 2223/04 (2013.01); C10M 2223/10 (2013.01); C10N 2010/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/08 (2013.01); C10N 2030/64 (2020.05); C10N 2040/08 (2013.01)
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)
WO 2015048716 A1 20150402; AU 2014324559 A1 20160421; BR 112016007084 A2 20170801; EP 3052597 A1 20160810; EP 3052597 A4 20170426
DOCDB simple family (application)
US 2014058238 W 20140930; AU 2014324559 A 20140930; BR 112016007084 A 20140930; EP 14849223 A 20140930