Global Patent Index - EP 1237840 A1

EP 1237840 A1 2002-09-11 - SALICYLIC CALIXARENES AND THEIR USE AS LUBRICANT ADDITIVES

Title (en)

SALICYLIC CALIXARENES AND THEIR USE AS LUBRICANT ADDITIVES

Title (de)

SALICYLSÄURE CALIXARENE UND IHRE VERWENDUNG ALS SCHMIERSTOFFADDITIVE

Title (fr)

CALIXARENES SALICYLIQUES ET LEUR UTILISATION COMME ADDITIFS POUR LUBRIFIANTS

Publication

EP 1237840 A1 (EN)

Application

EP 00981476 A

Priority

  • GB 0004734 W
  • GB 9929433 A
  • US 17159999 P

Abstract (en)

[origin: WO0144155A1] A cyclic compound comprising m units of formula Ia and n units of formula (Ib) joined together to form a ring, wherein Y is a divalent bridging group which may be the same or different in each unit; R<0> is H, a C1-C6 alkyl or a metal or ammonium cation; R<5> is H or a C1-C60 alkyl; and j is 1 or 2; R<3> is hydrogen, a hydrocarbyl or a hetero-substituted hydrocarbyl group; each of R<1>, R<2> and R<4>, which may be the same or different, is hydroxyl, hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl, with the proviso that at least one of R<1>, R<2>, R<4> is hydroxyl, and m + n is 4 to 20, m is 1-8 and n is at least 3; and with the proviso that at least one of the conditions a) to e) below is satisfied: (a) the cyclic compound comprises at least one formula (Ia) unit in the form of a carboxylate anion, (b) the caclic compound comprises at least one formula (Ia) unit in the form of an alkaline earth metal or alkali metal carboxylate salt, (c) the cyclic compound comprises at least 2 units of formula (Ia) (d) the cyclic compound comprises an m + n value of 5 to 11, and (e) the cyclic compound is in the substantial absence of linear species comprising formula (Ia) and (Ib) units and/or the substantial absence of compounds of the formula (IIa) and (IIb) below: (IIa) (IIb).

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

C07C 65/17; C07C 69/94; C10L 1/18; C10M 129/54; C10M 129/76; C10M 145/20; C10M 159/22

IPC 8 full level (invention and additional information)

B01D 17/04 (2006.01); C07C 65/17 (2006.01); C07C 69/00 (2006.01); C07C 69/94 (2006.01); C10L 1/14 (2006.01); C10L 1/198 (2006.01); C10M 145/20 (2006.01); C10M 159/22 (2006.01)

CPC (invention and additional information)

C10M 159/22 (2013.01); B01D 17/045 (2013.01); B01D 17/047 (2013.01); C07C 65/17 (2013.01); C07C 69/94 (2013.01); C10L 1/143 (2013.01); C10L 1/1981 (2013.01); C10M 145/20 (2013.01); C07C 2603/92 (2017.05); C10M 2209/101 (2013.01); C10M 2227/09 (2013.01); C10N 2210/01 (2013.01); C10N 2240/10 (2013.01); C10N 2240/101 (2013.01); C10N 2240/102 (2013.01); C10N 2240/103 (2013.01); C10N 2240/104 (2013.01); C10N 2240/106 (2013.01)

Citation (search report)

See references of WO 0144155A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 0144155 A1 20010621; AU 1871101 A 20010625; EP 1237840 A1 20020911

INPADOC legal status


2005-11-30 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050529

2003-07-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030602

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020531

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI