EP 3921399 A1 20211215 - COMPRESSOR LUBRICANT COMPOSITION
Title (en)
COMPRESSOR LUBRICANT COMPOSITION
Title (de)
VERDICHTERSCHMIERMITTELZUSAMMENSETZUNG
Title (fr)
COMPOSITION LUBRIFIANTE POUR COMPRESSEUR
Publication
Application
Priority
- FR 1901106 A 20190205
- EP 2020052569 W 20200203
Abstract (en)
[origin: WO2020161051A1] The present invention relates to a lubricant composition intended for a refrigeration system comprising a gas compression circuit, comprising: - at least a first polyalkylene glycol having a hydroxyl number strictly greater than 50 mgKOH/g and a kinematic viscosity, measured at 100°C according to standard ASTM D445, ranging from 5 to 10 mm²/s; and - at least a second polyalkylene glycol having a kinematic viscosity, measured at 100 °C, ranging from 100 to 500 mm²/s, wherein said polyalkylene glycols A and B are present in a PAG(s) A/PAG(s) B weight ratio of between 60/40 and 99/1. It also relates to the use of such a lubricant composition in a refrigeration system comprising a gas compression circuit, in particular for a motor vehicle air-conditioning system, in combination with a refrigerant based on hydrocarbon-based compounds, such as R134a and/or HFO-1234yf.
IPC 8 full level
C10M 171/00 (2006.01)
CPC (source: EP US)
C10M 171/008 (2013.01 - EP US); C10M 2207/023 (2013.01 - US); C10M 2207/026 (2013.01 - EP); C10M 2209/1033 (2013.01 - EP); C10M 2209/1045 (2013.01 - EP); C10M 2209/1055 (2013.01 - EP); C10M 2209/107 (2013.01 - US); C10M 2223/043 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/04 (2013.01 - EP); C10N 2020/101 (2020.05 - EP); C10N 2030/06 (2013.01 - US); C10N 2030/10 (2013.01 - EP US); C10N 2040/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2020161051A1
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 2020161051 A1 20200813; CN 113597465 A 20211102; CN 113597465 B 20230331; EP 3921399 A1 20211215; FR 3092585 A1 20200814; FR 3092585 B1 20210212; US 11535809 B2 20221227; US 2022127544 A1 20220428
DOCDB simple family (application)
EP 2020052569 W 20200203; CN 202080021685 A 20200203; EP 20702132 A 20200203; FR 1901106 A 20190205; US 202017428540 A 20200203