Global patent index - EP 0973852 A1

EP 0973852 A1 2000-01-26 - COMPLEX ESTERS FOR USE WITH FLUORINATED REFRIGERANTS

Title (en)

COMPLEX ESTERS FOR USE WITH FLUORINATED REFRIGERANTS

Title (de)

KOMPLEXE ESTER ZUR VERWENDUNG IN KÜHLSCHMIERSTOFFEN

Title (fr)

ESTERS COMPLEXES CON US POUR ETRE UTILISES AVEC DES REFRIGERANTS FLUORES

Publication

EP 0973852 A1 (EN)

Application

EP 98913779 A

Priority

  • FI 9800312 W
  • FI 971548 A

Abstract (en)

[origin: WO9846705A1] The invention concerns refrigerant compositions which comprise a hydrofluorocarbon based refrigerant and, mixed with the refrigerant, a polyol ester based lubricant. According to the invention the polyol ester comprises a diol having a strongly sterically hindered hydrogen attached to the carbon in position 2, said diol being esterified with a mixture of mono- and dibasic carboxylic acids. In particular the diol is 2-ethyl-1,3-hexanediol or 1,4-dimethylol-cyclohexane. The complex esters used in refrigerant mixtures have good lubricant properties and good solubility in HFC compounds.

IPC 1-7 (main, further and additional classification)

C10M 105/42

IPC 8 full level (invention and additional information)

C09K 5/04 (2006.01); C10M 105/32 (2006.01); C10M 105/38 (2006.01); C10M 105/42 (2006.01); C10M 105/44 (2006.01); C10M 171/00 (2006.01); C10N 40/30 (2006.01)

CPC (invention and additional information)

C10M 105/32 (2013.01); C09K 5/045 (2013.01); C10M 105/38 (2013.01); C10M 105/42 (2013.01); C10M 105/44 (2013.01); C10M 171/008 (2013.01); C10M 2207/2805 (2013.01); C10M 2207/281 (2013.01); C10M 2207/282 (2013.01); C10M 2207/283 (2013.01); C10M 2207/2835 (2013.01); C10M 2207/286 (2013.01); C10M 2207/289 (2013.01); C10M 2207/30 (2013.01); C10M 2207/302 (2013.01); C10M 2207/3025 (2013.01); C10M 2207/345 (2013.01); C10M 2211/022 (2013.01); C10M 2211/06 (2013.01); C10N 2240/00 (2013.01); C10N 2240/02 (2013.01); C10N 2240/22 (2013.01); C10N 2240/30 (2013.01); C10N 2240/50 (2013.01); C10N 2240/52 (2013.01); C10N 2240/54 (2013.01); C10N 2240/56 (2013.01); C10N 2240/58 (2013.01); C10N 2240/60 (2013.01); C10N 2240/66 (2013.01)

Combination set (CPC)

C10M 105/32 + C10M 105/38 + C10M 105/44

Citation (search report)

See references of WO 9846705A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9846705 A1 19981022; AU 6834798 A 19981111; EP 0973852 A1 20000126; FI 107341 B 20010713; FI 971548 A0 19970411; FI 971548 A 19981012; JP 2001518965 A 20011016

INPADOC legal status

2006-11-17 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Legal Event Code: WD

- Ref Document Number: 1025114

- Country of Ref Document: HK

2006-05-10 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20051130

2002-10-09 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020827

2000-01-26 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991008

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-01-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: LT PAYMENT 19991008;LV PAYMENT 19991008