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1. (WO2013123186) POLYESTER LUBRICANT FOR WORKING FLUIDS COMPRISING DIFLUOROMETHANE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/123186 International Application No.: PCT/US2013/026135
Publication Date: 22.08.2013 International Filing Date: 14.02.2013
IPC:
C10M 171/00 (2006.01) ,C10N 40/30 (2006.01)
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
171
Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
N
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
40
Specified use or application for which the lubricating composition is intended
30
Refrigerator lubricant
Applicants:
CHEMTURA CORPORATION [US/US]; 199 Benson Road Middlebury, CT 06749, US
Inventors:
BENANTI, Travis; US
HESSELL, Edward, T.; US
Agent:
ROMANIK, George, J.; Chemtura Corporation 199 Benson Road Middlebury, CT 06749, US
Priority Data:
13/767,05814.02.2013US
61/598,98015.02.2012US
Title (EN) POLYESTER LUBRICANT FOR WORKING FLUIDS COMPRISING DIFLUOROMETHANE
(FR) LUBRIFIANT DE POLYESTER POUR FLUIDES DE TRAVAIL COMPRENANT DU DIFLUOROMÉTHANE
Abstract:
(EN) Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a lubricant containing these select neopentyl polyol esters and having a kinematic viscosity at 40°C of 32 cSt or higher. Specifically, the lubricant composition of the invention comprises a mixture of alkylcarboxy esters of neopentyl polyols, wherein at least 10 wt % of all neopentyl polyol esters are esters of pentaerythritol oligomers of 4 or more pentaerythritol monomer groups, and wherein a majority of the alkylcarboxylate groups of the alkylcarboxy esters of neopentyl polyols are pentanoyl groups wherein at least 15% of the pentanoyl groups are branched.
(FR) L'invention concerne des mélanges d'esters de polyol de néopentyle choisis qui sont très miscibles avec le réfrigérant R-32 sur une large plage de températures. L'invention concerne des fluides de travail comprenant le R-32 et un lubrifiant contenant ces esters de polyol de néopentyle choisis et ayant une viscosité cinématique à 40 °C de 32 cSt ou plus. Plus précisément, la composition lubrifiante de l'invention comprend un mélange d'esters d'alkylcarboxy de polyols de néopentyle, au moins 10 % en poids de tous les esters de polyol de néopentyle étant des esters d'oligomères de pentaérythritol de 4 groupes monomères de pentaérythritol ou plus, et une majorité des groupes alkylcarboxylate des esters d'alkylcarboxy de polyols de néopentyle étant des groupes pentanoyle dont au moins 15 % des groupes pentanoyle sont ramifiés.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)