Lubricating oil compositions and concentrates

Claim 2

A lubricating oil composition for internal combustion engines which comprises (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent up to less than one equivalent, per equivalent of acylating agent, of at least one amine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper.

Claim 3

The oil composition of claim 1 containing at least about 2% by weight of the carboxylic derivative composition (B).

Claim 4

The oil composition of claim 1 containing at least about 2.5% by weight of the carboxylic derivative composition (B).

Claim 5

The oil composition of claim 1 wherein the value of Mn in (B) is at least about 1500.

Claim 6

The oil composition of claim 1 wherein the value of M/M in (B) is at least about 2.0.

Claim 7

The oil composition of claim 1 wherein the substituent groups in (B) are derived from one or more polyalkenes selected from the group consisting of homopolymers and interpolymers of terminal olefins of from 2 to about 6 carbon atoms with the proviso that said interpolymers can optionally contain up to about 25% of polymer units derived from internal olefins of up to about 6 carbon atoms.

Claim 8

The oil composition of claim 1 wherein the substituent groups in (B) are derived from a member selected from the group consisting of polybutene, ethylenepropylene copolymer, polypropylene, and mixtures of two or more of any of these.

Claim 9

The oil composition of claim 1 wherein the substituent groups in (B) are derived from polybutene in which at least about 50% of the total units derived from butenes is derived from isobutene.

Claim 10

The oil composition of claim 1 wherein in (B), from about 0.70 to about 0.95 equivalent of the amine (B-2) is reacted per equivalent of acylating agent (B-1).

Claim 11

The oil composition of claim 1 wherein the amine (B-2) is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 12

The oil composition of claim 1 wherein the amine (B-2) is a hydroxy-substituted monoamine, polyamine, or mixtures thereof.

Claim 13

The oil composition of claim 1 wherein the amine (B-2) is characterized by the general formula ##STR13## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 14

The oil composition of claim 1 wherein the primary aliphatic alcohol in (C-1) contains from about 6 to about 13 carbon atoms.

Claim 15

The oil composition of claim 1 wherein the metal of (C-2) is zinc, copper, or mixtures of zinc and copper.

Claim 16

The oil composition of claim 1 wherein the metal of (C-2) is zinc.

Claim 17

The oil composition of claim 1 wherein the alcohol mixture in (C-1) comprises at least 20 mole percent of isopropyl alcohol.

Claim 18

The oil composition of claim 1 also containing at least one additional metal salt of a dihydrocarbyl dithiophosphoric acid characterized by Formula IX ##STR14## wherein R 1 and R 2 are hydrocarbyl groups containing from 3 to about 10 carbon atoms, M is a Group I metal, a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper, and n is an integer equal to the valence of M.

Claim 19

The oil composition of claim 17 wherein at least one of the hydrocarbyl groups in Formula IX is attached to the oxygen atom through a secondary carbon atom.

Claim 20

The oil composition of claim 17 wherein R 1 and R 2 in Formula IX are hydrocarbyl groups attached to the oxygen atoms through secondary carbon atoms.

Claim 21

The oil composition of claim 1 also containing (D) at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) at least one alcohol of the general formula R.sup.3 (OH).sub.m (X) wherein R 3 is a monovalent or polyvalent organic group joined to the --OH groups through carbon bonds, and m is an integer of from 1 to about 10.

Claim 22

The oil composition of claim 20 wherein the substituted succinic acylating agent in (D-1) consists of substituent groups and succinic groups wherein the substituent groups have an Mn of at least about 700.

Claim 23

The oil composition of claim 21 wherein the substituent groups in (D-1) are derived from a polyalkene having an Mn value of from about 700 to about 5000.

Claim 24

The oil composition of claim 20 wherein the alcohol (D-2) of Formula X is a monohydric or polyhydric alcohol containing up to 40 aliphatic carbon atoms.

Claim 25

The oil composition of claim 21 wherein the substituent groups in (D-1) are derived from a member selected from the group consisting of polybutene, ethylene-propylene copolymer, polypropylene, and mixtures of two or more of any of these.

Claim 26

The oil composition of claim 21 wherein the substituent groups in (D-1) are derived from polybutene in which at least about 50% of the total units derived from polybutenes are derived from isobutene.

Claim 27

The oil composition of claim 20 wherein the alcohol (D-2) is neopentyl glycol, ethylene glycol, glycerol, pentaerythritol, sorbitol, mono-alkyl or mono-aryl ethers of a poly(oxyalkylene) glycol, or mixtures of any one of these.

Claim 28

The oil composition of claim 20 wherein from about 0.1 to about 2 moles of alcohol (D-2) are reacted with one mole of the substituted succinic acylating agent (D-1).

Claim 29

The oil composition of claim 20 wherein m in Formula X is at least 2.

Claim 30

The oil composition of claim 20 wherein the carboxylic ester derivative composition (D) prepared by reacting the acylating agent (D-1) with the alcohol (D-2) is further reacted with (D-3) at least one amine containing at least one HN< group.

Claim 31

The oil composition of claim 29 wherein the amine (D-3) is a polyamine.

Claim 32

The oil composition of claim 30 wherein the polyamine (D-3) is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 33

The oil composition of claim 30 wherein the polyamine (D-3) is an alkylene polyamine.

Claim 34

The oil composition of claim 30 wherein the polyamine (D-3) is characterized by the general formula ##STR15## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 35

The oil composition of claim 20 wherein the substituted succinic acylating agent (D-1) consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of from about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of at least about 1.3 succinic groups for each equivalent weight of substituent group.

Claim 36

The oil composition of claim 34 wherein the polyalkene in (D-1) is characterized as having an Mn value of at least about 1500 and an Mw/Mn value of about 2 to about 4.

Claim 37

The oil composition of claim 34 wherein the carboxylic ester prepared by reacting the acylating agent with the alcohol is further reacted with (D-3) at least one amine containing at least one HN< group.

Claim 38

The oil composition of claim 36 wherein the amine (D-3) is a polyamine.

Claim 39

The oil composition of claim 37 wherein the polyamine (D-3) is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 40

The oil composition of claim 37 wherein the polyamine (D-3) is an alkylene polyamine.

Claim 41

The oil composition of claim 37 wherein the polyamine (D-3) is characterized by the general formula ##STR16## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 42

The oil composition of claim 1 also containing (E) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound.

Claim 43

The oil composition of claim 41 wherein the acidic organic compound in (E) is a sulfur acid, carboxylic acid, phosphorus acid, phenol, or mixtures thereof.

Claim 44

The oil composition of claim 41 wherein the alkaline earth metal in (E) is calcium, magnesium, or mixtures of calcium and magnesium.

Claim 45

The oil composition of claim 41 wherein the alkaline earth metal salt (E) is a basic metal salt having a metal ratio of at least about 2.

Claim 46

The oil composition of claim 41 wherein the acidic compound in (E) is at least one organic sulfonic acid.

Claim 47

The oil composition of claim 45 wherein the organic sulfonic acid is a hydrocarbyl-substituted aromatic sulfonic acid, or an aliphatic sulfonic acid represented by Formulae XI and XII, respectively R.sub.x --T--(SO.sub.3 H).sub.y (XI) R'--(SO.sub.3 H).sub.r (XII) wherein R and R' are each independently an aliphatic group containing up to about 60 carbon atoms, T is an aromatic hydrocarbon nucleus, x is a number of 1 to 3, and r and y are numbers of from 1 to 2.

Claim 48

The oil composition of claim 45 wherein the sulfonic acid is an alkylated benzene sulfonic acid.

Claim 49

The oil composition of claim 1 also containing (F) at least one partial fatty acid ester of a polyhydric alcohol.

Claim 50

The oil composition of claim 48 wherein the fatty acid ester of the polyhydric alcohol is a partial fatty acid ester of glycerol.

Claim 51

The oil composition of claim 48 wherein the fatty acid contains from about 10 to about 22 carbon atoms.

Claim 52

A lubricating oil composition for internal combustion engines which comprises (A) a major amount of oil of lubricating viscosity, (B) from about 0.5% to about 10% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent to about 0.95 equivalent, per equivalent of acylating agent, of at least one amine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 2 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, (C) from about 0.05 to about 5% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper, (D) 0.1 to about 10% of at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) at least one alcohol of the general formula R.sub.3 (OH).sub.m (X) wherein R 3 is a monovalent or polyvalent organic group joined to the --OH groups through carbon bonds, and m is an integer of from 2 to about 10, and (E) from about 0.01 to about 5% by weight of at least one alkaline earth metal salt of an organic acid compound selected from the group consisting of sulfur acids, carboxylic acids, phosphorus acids, phenols, and mixtures of said acids.

Claim 53

A lubricating oil composition for internal combustion engines which comprises (A) a major amount of oil of lubricating viscosity, (B) from about 0.5% to about 10% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent to about 0.95 equivalent, per equivalent of acylating agent, of at least one amine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 2 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, (C) from about 0.05 to about 5% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper, (D) 0.1 to about 10% of at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) at least one alcohol of the general formula R.sub.3 (OH).sub.m (X) wherein R 3 is a monovalent or polyvalent organic group joined to the --OH groups through carbon bonds, and m is an integer of from 2 to about 10, and (E) from about 0.01 to about 5% by weight of at least one alkaline earth metal salt of an organic acid compound selected from the group consisting of sulfur acids, carboxylic acids, phosphorus acids, phenols, and mixtures of said acids.

Claim 54

The oil composition of claim 51 containing at least about 2.0% by weight of the carboxylic derivative composition (B).

Claim 55

The oil composition of claim 51 containing at least about 2.5% by weight of the carboxylic derivative composition (B).

Claim 56

The oil composition of claim 51 wherein the amine (B-2) is a polyamine characterized by the general formula ##STR17## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or an amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 57

The oil composition of claim 51 wherein the primary aliphatic alcohol in (C-1) contains from about 6 to about 13 carbon atoms.

Claim 58

The oil composition of claim 51 wherein the metal of (C-2) is zinc, copper, or mixtures of zinc and copper.

Claim 59

The oil composition of claim 51 wherein the metal of (C-2) is zinc.

Claim 60

The oil composition of claim 51 wherein the alcohol mixture in (C-1) comprises at least 20 mole percent of isopropyl alcohol.

Claim 61

The oil composition of claim 51 wherein the substituted succinic acylating agent (D-1) consists of substituent groups and succinic groups wherein the substituent groups have an Mn value of at least about 700.

Claim 62

The oil composition of claim 59 wherein the substituent groups are derived from a polyalkene having an Mn value of from about 700 to about 5000.

Claim 63

The oil composition of claim 51 wherein the alcohol (D-2) is a monohydric or polyhydric alcohol containing up to 40 aliphatic carbon atoms.

Claim 64

The oil composition of claim 59 wherein the substituent groups are derived from a member selected from the group consisting of polybutene, ethylene-propylene copolymer, polypropylene, and mixtures of two or more of any of these.

Claim 65

The oil composition of claim 59 wherein the substituent groups are derived from polybutene in which at least about 50% of the total units derived from polybutenes are derived from isobutene.

Claim 66

The oil composition of claim 51 wherein the alcohol (D-2) is neopentyl glycol, ethylene glycol, glycerol, pentaerythritol, sorbitol, mono-alkyl or monoaryl ethers of a poly(oxyalkylene) glycol, or mixtures of any two or more of these.

Claim 67

The oil composition of claim 51 wherein from about 0.1 to about 2 moles of alcohol (D-2) are reacted with one mole of the substituted succinic acylating agent (D-1).

Claim 68

The oil composition of claim 51 wherein m in in Formula X is at least 2.

Claim 69

The oil composition of claim 51 wherein the carboxylic ester of (D) is further reacted with (D-3) at least one polyamine containing at least one HN< group.

Claim 70

The oil composition of claim 67 wherein the amine (D-3) is at least one polyamine.

Claim 71

The oil composition of claim 68 wherein the polyamine (D-3) is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 72

The oil composition of claim 68 wherein the polyamine (D-3) is characterized by the general formula ##STR18## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 73

The oil composition of claim 51 wherein the substituted succinic acylating agent (D-1) reacted with the alcohol (D-2) consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of from about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of at least about 1.3 succinic groups for each equivalent weight of substituent group.

Claim 74

The oil composition of claim 71 wherein the polyalkene is characterized as having an Mn value of at least about 1500 and an Mw/Mn value of about 2 to about 4.5.

Claim 75

The oil composition of claim 71 wherein the carboxylic ester derivative composition is further reacted with (D-3) at least one polyamine containing at least one HN< group.

Claim 76

The oil composition of claim 73 wherein the amine is a polyamine.

Claim 77

The oil composition of claim 74 wherein the polyamine is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 78

The oil composition of claim 74 wherein the polyamine is an alkylene polyamine.

Claim 79

The oil composition of claim 74 wherein the polyamine is characterized by the general formula ##STR19## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 80

The oil composition of claim 51 also containing (F) from about 0.01 to 2% by weight of at least one partial fatty acid ester of a polyhydric alcohol.

Claim 81

The oil composition of claim 78 wherein the polyhydric alcohol is glycerol.

Claim 82

The oil composition of claim 78 wherein the fatty acid contains from about 10 to about 22 carbon atoms.

Claim 83

A lubricating oil composition for internal combustion engines which comprises (A) a major amount of oil of lubricating viscosity, (B) from about 2% to about 10% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.75 equivalent to about 0.90 equivalent, per equivalent of acylating agent, of at least one polyamine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 2 to about 4, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, (C) from about 0.05 to about 5% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least about 20 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 6 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper, (D) 0.1 to about 10% of at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) from about 0.1 to about 2 moles, per mole of acylating agent of at least one polyhydroxy compound selected from the group consisting of neopentyl glycol, ethylene glycol glycerol, pentaerythritol, sorbitol, mono-alkyl or mono-aryl ethers of a poly(oxyalkylene)glycol or mixtures of any two or more of these, and (E) from about 0.01 to about 5% by weight of at least one alkaline earth metal salt of an organic acid compound selected from the group consisting of sulfonic acids, carboxylic acids, phenols, and mixtures of said acids.

Claim 84

A lubricating oil composition for internal combustion engines which comprises (A) a major amount of oil of lubricating viscosity, (B) from about 2% to about 10% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.75 equivalent to about 0.90 equivalent, per equivalent of acylating agent, of at least one polyamine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 2 to about 4, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, (C) from about 0.05 to about 5% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least about 20 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 6 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper, (D) 0.1 to about 10% of at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) from about 0.1 to about 2 moles, per mole of acylating agent of at least one polyhydroxy compound selected from the group consisting of neopentyl glycol, ethylene glycol glycerol, pentaerythritol, sorbitol, mono-alkyl or mono-aryl ethers of a poly(oxyalkylene)glycol or mixtures of any two or more of these, and (E) from about 0.01 to about 5% by weight of at least one alkaline earth metal salt of an organic acid compound selected from the group consisting of sulfonic acids, carboxylic acids, phenols, and mixtures of said acids.

Claim 85

The oil composition of claim 81 containing at least about 2.5% by weight of the carboxylic derivative composition (B).

Claim 86

The oil composition of claim 81 wherein the polyamine (B-2) is a polyamine characterized by the general formula ##STR20## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 87

The oil composition of claim 81 wherein the alcohol mixture in (C-1) comprises at least about 40 mole percent of isopropyl alcohol.

Claim 88

The oil composition of claim 81 wherein the metal of (C-2) is zinc.

Claim 89

The oil composition of claim 81 wherein the substituted succinic acylating agent (D-1) consists of substituent groups and succinic groups wherein the substituent groups have an Mn value of from about 700 to about 5000.

Claim 90

The oil composition of claim 86 wherein the substituent groups are derived from a member selected from the group consisting of polybutene, ethylene-propylene copolymer, polypropylene, and mixtures of two or more of any of these.

Claim 91

The oil composition of claim 86 wherein the substituent groups are derived from polybutene in which at least about 50% of the total units derived from polybutenes are derived from isobutene.

Claim 92

The oil composition of claim 81 wherein the carboxylic ester of (D) is further reacted with (D-3) at least one polyamine containing at least one HN< group.

Claim 93

The oil composition of claim 89 wherein the polyamine (D-3) is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 94

The oil composition of claim 89 wherein the polyamine (D-3) is characterized by the general formula ##STR21## wherein n is an integer from 1 to about 10, each R 3 is independently a hydrogen atom, a hydrocarbyl group or a hydroxy-substituted or amino-substituted hydrocarbyl group having up to about 30 atoms, or two R 3 groups on different nitrogen atoms can be joined together to form a U group with the proviso that at least one R 3 group is a hydrogen atom and U is an alkylene group of about 2 to about 10 carbon atoms.

Claim 95

The oil composition of claim 81 wherein the substituted succinic acylating agent (D-1) reacted with the polyhydroxy compound (D-2) consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of from about 1.5 to about 4, said acylating agents being characterized by the presence within their structure of at least about 1.3 succinic groups for each equivalent weight of substituent group.

Claim 96

The oil composition of claim 92 wherein the carboxylic ester derivative composition is further reacted with (D-3) at least one polyamine containing at least one HN< group.

Claim 97

The oil composition of claim 93 wherein the polyamine is an aliphatic, cycloaliphatic or aromatic polyamine.

Claim 98

The oil composition of claim 93 wherein the polyamine is an alkylene polyamine.

Claim 99

The oil composition of claim 81 also containing (F) from about 0.01 to 2% by weight of at least one partial fatty acid ester of a glycerol.

Claim 100

The oil composition of claim 96 wherein the fatty acid contains from about 10 to about 22 carbon atoms.

Claim 101

A concentrate for formulating lubricating oil compositions comprising from about 20 to about 90% by weight of a normally liquid, substantially inert organic diluent/solvent, (B) from about 10 to about 50% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) less than one equivalent, per equivalent of acylating agent, of at least one amine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) from about 0.001 to about 15% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper.

Claim 102

A concentrate for formulating lubricating oil compositions comprising from about 20 to about 90% by weight of a normally liquid, substantially inert organic diluent/solvent, (B) from about 10 to about 50% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) less than one equivalent, per equivalent of acylating agent, of at least one amine characterized by the presence within its structure of at least one HN< group wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of about 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) from about 0.001 to about 15% by weight of at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper.

Claim 103

The concentrate of claim 98 also containing from about 1% by weight to about 30% by weight of (D) at least one carboxylic ester derivative composition produced by reacting (D-1) at least one substituted succinic acylating agent with (D-2) at least one alcohol of the general formula R.sup.3 (OH).sub.m (X) wherein R 3 is a monovalent or polyvalent organic group joined to the --OH groups through carbon bonds, and m is an integer of from 1 to about 10.

Claim 104

The concentrate of claim 99 wherein the carboxylic ester (D) produced by reacting the acylating agent (D-1) with the alcohol (D-2) is further reacted with (D-3) at least one amine containing at least one HN< group.

Claim 105

The concentrate of claim 98 also containing from about 1% by weight to about 20% by weight of (E) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound.

Claim 106

The concentrate of claim 99 also containing from about 1% by weight of about 20% by weight of (E) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound.

Claim 107

The concentrate of claim 98 also containing from about 0.001% to about 10% by weight of (F) at least one partial fatty acid ester of a polyhydric alcohol.

Claim 108

The concentrate of claim 99 also containing from about 0.001% to about 10% by weight of (F) at least one partial fatty acid ester of a polyhydric alcohol.

Claim 109

The concentrate of claim 104 also containing from about 1% by weight to about 20% by weight of (E) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound.