Bp Chemicals (additives) Limited

Bp Chemicals Limited

Lubrizol Adibis Holdings (uk) Limited

Bp International Limited

Charles Cane

Sean P O'Connor

John Crawford

Stephen J Cook

Bertram Yeomans

David A Duncan

Sean Patrick O'Connor

Anthony Garner

Patrick S O'Connor

An additive concentrate suitable for incorporation into a finished lubricating oil composition is disclosed. The additive concentrate comprises: (a) a lubricating oil; (b) a lubricating oil soluble sulphurized alkaline earth metal hydrocarbyl phenate modified by incorporation of from greater than 2 to 35% by weight based on the weight of the composition of either (i) at least one carboxylic acid having formula (I), ##STR1## wherein R is C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.1 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a --CH.sub.2 --COOH group, or an anhydride, acid chloride or ester thereof or (ii) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride, acid chloride or ester thereof, the composition having a TBN greater than 300. A process for making the foregoing additive concentrate is disclosed. A finished lubricating oil composition containing the foregoing additive concentrate is also disclosed.

Sulphurized alkaline earth metal hydrocarbyl phenates, their production

An additive concentrate suitable for incorporation into a finished lubricating oil composition is disclosed. The additive concentrate comprises:

Alkaline earth metal hydrocarbyl phenates, their sulphurized

An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising:

Highly overbased lubricating oil additive concentrates their preparation

Process for producing an additive concentrate having a viscosity of less than 1000 cSt at 100 EC, by reacting at elevated temperature and in the presence of an inorganic halide or calcium acetate catalyst (A) either (i) a hydrocarbyl phenol or (ii) a hydrocarbyl phenol and sulphur, (B) an alkaline earth metal base added in either a single addition or in a plurality of additions during the reaction, (C) either a polyhydric alcohol having from 2 to 4 carbon atoms, a di- or tri- C.sub.2 to C.sub.4 glycol, an alkylene glycol alkyl ether or a polyalkylene glycol alkyl ether, (D) a lubricating oil, (E) carbon dioxide added subsequent to the, or each, addition of compound (B), and (F) sufficient to provide from 12 to less than 40% by weight based on the weight of the concentrate of either (i) a carboxylic acid having the formula RCH(R')COOH, wherein R is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a --CH.sub.2 --COOH group, or an anhydride, acid chloride or ester thereof or (ii) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride, acid chloride or ester thereof, the weight ratios of components (A) to (F) being such as to produce a concentrate having a TBN greater than 350.

An additive concentrate suitable for incorporation into a into a finished lubricating oil composition, the additive concentrate comprising: (a) a lubricating oil; (b) a lubricating oil soluble sulphurised alkaline earth metal hydrocarbyl phenate modified by incorporation of from greater than 2 to 35% by weight based on the weight of the composition of either (i) at least one carboxylic acid having formula (I), wherein R is C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.1 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a --CH.sub.2 --COOH group, or an anhydride, acid chloride or ester thereof or (ii) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride, acid chloride or ester thereof, the composition having a TBN greater than 300.

Sulphurised alkaline earth metal hydrocarbyl phenates, their production

An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil comprises: (I) a lubricating oil soluble overbased alkaline earth metal hydrocarbyl salicylate modified by reaction to incorporate (a) an aldehyde, and (b) from 2 to 40% by weight, based on the weight of the concentrate, of either (i) at least one carboxylic acid having the formula: ##STR1## wherein R.sup.3 is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.4 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a CH.sub.2 COOH group, or an anhydride or ester thereof, or (ii) a di- or poly-carboxylic acid containing from 36 to 100 carbon atoms or an acid anhydride, acid chloride or ester thereof, and (II) a lubricating oil.

Alkaline earth metal hydrocarbyl salicylate concentrates, their

A process for the production of a lubricating oil additive concentrate having a TBN greater than 300 comprises reacting at elevated temperature

Process for the production of a lubricating oil additive concentrate

A process for the production of a lubricating oil additive concentrate having a TBN greater than 300 which process comprises reacting component (A) a defined derivative of phenol component (B) an alkaline earth metal base added either in a single addition of in a plurality of additions at intermediate points during the reaction, component (C) at least one compound which is (i) water, (ii) a C.sub.1 to C.sub.10 monohydric alcohol, (iii) a C.sub.1 to C.sub.20 ketone, (iv) a C.sub.1 to C.sub.10 carboxylic acid ester or (v) a C.sub.1 to C.sub.20 ether, component (D) a lubricating oil, component (E) carbon dioxide added subsequent to the, or each, addition of component (B), component (F) a defined carboxylic acid or derivative component (G) at least one compound which is (i) an inorganic halide or (ii) an ammonium alkanoate or a mono-, di-, tri, or tetra-alkyl ammonium formate or alkanoate provided that, when component (G) is (ii), component (F) is not an acid chloride, the weight ratios of all components being such as to produce a concentrate having a TBN greater than 300.

A process for the production of a lubricating oil additive concentrate which process comprises reacting at elevated temperature

A process for the production of a lubricating oil additive concentrate having a TBN greater than 300 which process comprises reacting at elevated temperature

An additive concentrate composition having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising:

Alkaline earth metal sulphurised hydrocarbyl phenate-containing additive

A process for the production of a lubricating oil additive concentrate comprises reacting at elevated temperature

Production of a lubricating oil additive concentrate

Alkaline earth metal alkyl phenates are produced by reacting at elevated temperature, in the presence or absence of sulphur, an alkyl phenol with an alkaline earth metal base in the presence as solvent of either an alkylene or polyalkylene alkyl ether of formula R(OR.sup.1).sub.x OR.sup.2 wherein R is C.sub.1 to C.sub.6 alkyl, R.sup.1 is alkylene, R.sup.2 is hydrogen or C.sub.1 to C.sub.6 alkyl and x is an integer in the range 1 to 6 and as catalyst an inorganic halide, preferably a hydrogen halide, an ammonium halide, an alkaline earth metal halide, a zinc halide or an aluminum halide. It is preferred to add an acid. Furthermore, carbon dioxide is preferably incorporated in the phenate.

Production of either an alkaline earth metal alkyl phenate or a

A process for the production of a lubricating oil additive concentrate comprises reacting at elevated temperature the following components:

Process for the preparation of a lubricating oil additive concentrate

A process for the preparation of lubricating oil additive concentrate having a TBN greater than 300 comprises reacting at elevated temperature

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Hull, United Kingdom

Charles Cane