US4594378A — Polymeric compositions, oil compositions containi…

Claim 1

Independent Claim 208 words

A polymeric composition comprising a mixture of (A) from about 0.1% to about 20% by weight of at least one oil-soluble homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, said homopolymer having a number average molecular weight of from about 850 to about 10,000, (B) at least one nitrogen-containing ester of a carboxy-containing interpolymer derived from at least two monomers, one of said monomers being (i) an aliphatic olefin or a vinyl aromatic monomer, and the other of said monomers being (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer: (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymer with a polyamino compound having one primary of secondary amino group and at least one tertiary amino or heterocyclic amino group; and (C) an effective amount of at least one low temperature viscosity reducing liquid organic diluent.

Claim 2

Dependent Claim 208 words

A polymeric composition comprising a mixture of (A) from about 0.1% to about 20% by weight of at least one oil-soluble homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, said homopolymer having a number average molecular weight of from about 850 to about 10,000, (B) at least one nitrogen-containing ester of a carboxy-containing interpolymer derived from at least two monomers, one of said monomers being (i) an aliphatic olefin or a vinyl aromatic monomer, and the other of said monomers being (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer: (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymer with a polyamino compound having one primary of secondary amino group and at least one tertiary amino or heterocyclic amino group; and (C) an effective amount of at least one low temperature viscosity reducing liquid organic diluent.

Claim 3

Dependent Claim 23 words

The composition of claim 1 wherein the diluent (C) is characterized as having a viscosity at 40° C. of less than four centistokes.

Claim 4

Dependent Claim 31 words

The composition of claim 1 wherein the diluent (C) is a naphthenic oil or a synthetic oil having a viscosity at 40° C. of from about 2.0 to about 3.8 centistokes.

Claim 5

Dependent Claim 27 words

The polymeric composition of claim 1 wherein the weight ratio of diluent (C) to the combination of (A) and (B) is from about 5:1 to about 1:5.

Claim 6

Dependent Claim 213 words

A transmission fluid composition having improved shear stability comprising (A) from about 0.1% to about 20% by weight of at least one oil-soluble homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, said homopolymer having a number average molecular weight from about 850 to about 10,000, (B) at least one nitrogen-containing ester of a carboxy-containing interpolymer derived from at least two monomers, one of said monomers being (i) an aliphatic olefin or a vinyl aromatic monomer, and the other of said monomers being (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer: (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymer with a polyamino compound having one primary or secondary amino group and at least one tertiary amino or heterocyclic amino group; and (C) from about 1% to about 90% by weight of at least one low temperature viscosity reducing organic diluent.

Claim 7

Dependent Claim 213 words

A transmission fluid composition having improved shear stability comprising (A) from about 0.1% to about 20% by weight of at least one oil-soluble homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, said homopolymer having a number average molecular weight from about 850 to about 10,000, (B) at least one nitrogen-containing ester of a carboxy-containing interpolymer derived from at least two monomers, one of said monomers being (i) an aliphatic olefin or a vinyl aromatic monomer, and the other of said monomers being (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer: (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymer with a polyamino compound having one primary or secondary amino group and at least one tertiary amino or heterocyclic amino group; and (C) from about 1% to about 90% by weight of at least one low temperature viscosity reducing organic diluent.

Claim 8

Dependent Claim 19 words

The transmission fluid of claim 5 wherein the homopolymer (A) is derived from a C 4 -C 8 alpha-olefin.

Claim 9

Dependent Claim 14 words

The transmission fluid of claim 6 wherein the homopolymer is derived from a butene.

Claim 10

Dependent Claim 21 words

The transmission fluid of claim 7 wherein the homopolymer has a number average molecular weight of about 750 to about 10,000.

Claim 11

Dependent Claim 22 words

The transmission fluid of claim 5 wherein the monomer (i) in the nitrogen-containing ester (B) is ethylene, propylene, isobutene or a styrene.

Claim 12

Dependent Claim 35 words

The transmission fluid of claim 5 wherein the monomer (ii) in the nitrogen-containing ester (B) is at least one of maleic acid or maleic anhydride, itaconic acid or itaconic anhydride or acrylic acid or ester.

Claim 13

Dependent Claim 27 words

The transmission fluid of claim 5 wherein the carboxylic ester group (a) contains from about 8 to about 24 aliphatic carbon atoms, and the carboxylic ester group.

Claim 14

Dependent Claim 26 words

The transmission fluid of claim 5 wherein the interpolymer is a styrene-maleic anhydride interpolymer having a reduced specific viscosity of from about 0.3 to about 1.

Claim 15

Dependent Claim 19 words

The transmission fluid of claim 5 wherein the carbonyl polyamino group (b) is derived from a primary-aminoalkyl-substituted tertiary amine.

Claim 16

Dependent Claim 19 words

The transmission fluid of claim 5 wherein the carbonyl polyamino group (b) is derived from a primary-aminoalkyl-substituted heterocyclic amine.

Claim 17

Dependent Claim 14 words

The transmission fluid of claim 14 wherein the heterocyclic amine is an N-aminoalkyl-substituted morpholine.

Claim 18

Dependent Claim 16 words

The transmission fluid of claim 5 wherein the diluent (C) comprises at least some naphthenic oil.

Claim 19

Dependent Claim 278 words

A hydraulic fluid having improved shear stability comprising a major amount of a base oil; (A) a minor shear stabilizing amount of at least one oil-soluble polymer which is a homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, or a copolymer of said non-aromatic mono-olefin with an aromatic mono-olefin, said polymer having a number average molecular weigh tof about 500 to about 100,000; (B-1) a minor viscosity index improving amount of at least one nitrogen-containing ester of a carboxy-containing interpolymer obtained from (i) an aliphatic olefin or a vinyl aromatic monomer and (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester monomer thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer. (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymers with a polyamino compound having one primary or secondary amino group and at least one tertiary amino or heterocyclic amino group; (B-2) a minor pour point depressing amount of at least one oil-soluble acrylate polyerization product of at least one ester of the formula: CH.sub.2 ═C(X)--COOR wherein X is hydrogen or an alkyl or aryl group, and R is a monovalent hydrocarbyl group containing at least four carbon atoms or an ether derivative of said hydrocarbyl group; and (C) a minor fluidity improving amount of at least one low temperature viscosity reducing liquid organic diluent.

Claim 20

Dependent Claim 278 words

A hydraulic fluid having improved shear stability comprising a major amount of a base oil; (A) a minor shear stabilizing amount of at least one oil-soluble polymer which is a homopolymer of a non-aromatic mono-olefin having at least three carbon atoms, or a copolymer of said non-aromatic mono-olefin with an aromatic mono-olefin, said polymer having a number average molecular weigh tof about 500 to about 100,000; (B-1) a minor viscosity index improving amount of at least one nitrogen-containing ester of a carboxy-containing interpolymer obtained from (i) an aliphatic olefin or a vinyl aromatic monomer and (ii) at least one alpha, beta-unsaturated aliphatic carboxylic acid, anhydride or ester monomer thereof, said interpolymer having a reduced specific viscosity of from about 0.05 to about 2, said nitrogen-containing ester being characterized by the presence within its polymer structure of the following polar groups which are derived from the carboxy groups of said interpolymer. (a) at least one carboxylic ester group having at least 8 aliphatic carbon atoms in the ester group, (b) at least one carbonylpolyamino group derived from reacting a carboxy group of said interpolymers with a polyamino compound having one primary or secondary amino group and at least one tertiary amino or heterocyclic amino group; (B-2) a minor pour point depressing amount of at least one oil-soluble acrylate polyerization product of at least one ester of the formula: CH.sub.2 ═C(X)--COOR wherein X is hydrogen or an alkyl or aryl group, and R is a monovalent hydrocarbyl group containing at least four carbon atoms or an ether derivative of said hydrocarbyl group; and (C) a minor fluidity improving amount of at least one low temperature viscosity reducing liquid organic diluent.

Claim 21

Dependent Claim 16 words

The fluid of claim 17 with a minor rust-inhibiting amount of at least one rust inhibitor.

Claim 22

Dependent Claim 17 words

The fluid of claim 17 with a minor oxidation inhibiting amount of at least one oxidation inhibitor.

Claim 23

Dependent Claim 17 words

The fluid of claim 17 with a minor wear inhibiting amount of at least one anti-wear agent.

Claim 24

Dependent Claim 13 words

The fluid of claim 17 wherein said base oil is a synthetic oil.

Claim 25

Dependent Claim 13 words

The fluid of claim 17 wherein said base oil is a natural oil.

Claim 26

Dependent Claim 22 words

The fluid of claim 17 wherein (A) is a homopolymer derived from an olefin of about 3 to about 20 carbon atoms.

Claim 27

Dependent Claim 22 words

The fluid of claim 17 wherein (A) is a homopolymer derived from an alpha-olefin of about 4 to about 8 carbon atoms.

Claim 28

Dependent Claim 17 words

The fluid of claim 17 wherein component (A) is a homopolymer derived from propene or a butene.

Claim 29

Dependent Claim 20 words

The fluid of claim 17 wherein component (A) has a number average molecular weight of about 750 to about 10,000.

Claim 30

Dependent Claim 18 words

The fluid of claim 17 wherein the molar ratio of (a):(b) is from about 85:15 to about 99:1.

Claim 31

Dependent Claim 16 words

The fluid of claim 17 wherein the monomer (i) is ethylene, propylene, isobutene or a styrene.

Claim 32

Dependent Claim 11 words

The fluid of claim 17 wherein monomer (i) is a styrene.

Claim 33

Dependent Claim 27 words

The fluid of claim 17 wherein the monomer (ii) is at least one of maleic acid or anhydride, itaconic acid or anhydride, or acrylic acid or ester.

Claim 34

Dependent Claim 18 words

The fluid of claim 17 wherein the monomer (ii) is maleic acid, maleic anhydride or a mixture thereof.

Claim 35

Dependent Claim 24 words

The fluid of claim 17 wherein the carboxylic ester group (a) of component (B-1) contains from about 8 to about 24 aliphatic carbon atoms.

Claim 36

Dependent Claim 28 words

The fluid of claim 17 wherein the interpolymer of component (B-1) is a styrene-maleic anhydride interpolymer having a reduced specific viscosity of from about 0.3 to about 1.

Claim 37

Dependent Claim 21 words

The fluid of claim 17 wherein the carbonyl polyamino group (b) of component (B-1) is derived from a primary-aminoalkyl-substituted tertiary amine.

Claim 38

Dependent Claim 14 words

The fluid of claim 34 wherein the tertiary amine is a primary-aminoalkyl-substituted heterocyclic amine.

Claim 39

Dependent Claim 27 words

The fluid of claim 17 wherein X of component (B-2) is hydrogen or a methyl group and R has from about 8 to about 20 carbon atoms.

Claim 40

Dependent Claim 18 words

The fluid of claim 17 wherein (B-2) comprises a mixture of esters derived from a mixture of alcohols.

Claim 41

Dependent Claim 23 words

The fluid of claim 17 wherein the diluent (C) is characterized as having a viscosity at 40° C. of less than four centistokes.

Claim 42

Dependent Claim 31 words

The fluid of claim 17 wherein the diluent (C) is a naphthenic oil or a synthetic oil having a viscosity at 40° C. of from about 2.0 to about 3.8 centistokes.

Claim 43

Dependent Claim 13 words

The fluid of claim 17 wherein component (C) is an alkylated aromatic material.

Claim 44

Dependent Claim 28 words

The fluid of claim 18 wherein said rust-inhibitor is an alkenyl succinic acid, anhydride or ester, a metal sulfonate, an amine phosphate, an imidazoline or a sorbitan oleate.

Claim 45

Dependent Claim 12 words

The fluid of claim 18 wherein said rust-inhibitor is a calcium sulfonate.

Claim 46

Dependent Claim 18 words

The fluid of claim 18 wherein said rust-inhibitor is tetrapropenyl succinic acid, ester, acid/ester, or a mixture thereof.

Claim 47

Dependent Claim 32 words

The fluid of claim 19 wherein said oxidation inhibitor is a hindered phenol, an aromatic amine, an alkyl polysulfide, a selenide, a borate, a phosphorodithioic acid, ester or salt, or a dithiocarbamate.

Claim 48

Dependent Claim 69 words

The fluid of claim 20 wherein said anti-wear agent is made by contacting a salt of a phosphorus acid of the formula (R'O).sub.2 PSSH wherein each R' is independently a hydrocarbon-based group, or the phosphorus acid precursors thereof, with at least one phosphite of the formula (R"O).sub.3 P wherein R" is a hydrocarbon based group, under reaction conditions at a temperature of about 50° C. to about 200° C.

Claim 49

Dependent Claim 11 words

The fluid of claim 45 wherein R" is an aromatic group.

Claim 50

Dependent Claim 20 words

The fluid of claim 45 wherein each R' is an alkyl group of about 3 to about 50 carbon atoms.

Claim 51

Dependent Claim 12 words

The fluid of claim 45 wherein said salt is a zinc salt.

Claim 52

Dependent Claim 24 words

The fluid of claim 45 wherein said salt is a mixed salt of at least one phosphorus acid and at least one carboxylic acid.

Claim 53

Dependent Claim 14 words

The fluid of claim 20 wherein said anti-wear agent is a zinc dialkyl phosphorodithioiate.

Claim 54

Dependent Claim 21 words

The fluid of claim 17 wherein said fluid comprises from about 60% to about 99% by weight of said base oil.

Claim 55

Dependent Claim 20 words

The fluid of claim 17 wherein said fluid comprises from about 0.1% to about 20% by weight of component (A).

Claim 56

Dependent Claim 20 words

The fluid of claim 17 wherein said fluid comprises from about 0.05% to about 10% by weight of component (B-1).

Claim 57

Dependent Claim 20 words

The fluid of claim 17 wherein said fluid comprises from about 0.1% to about 10% by weight of component (B-2).

Claim 58

Dependent Claim 20 words

The fluid of claim 17 wherein said fluid comprises from about 1% to about 35% by weight of component (C).

Claim 59

Dependent Claim 20 words

The fluid of claim 18 wherein said fluid comprises from about 0.01% to about 5% by weight of said rust-inhibitor.

Claim 60

Dependent Claim 21 words

The fluid of claim 19 wherein said fluid comprises from about 0.05% to about 5% by weight of said oxidation inhibitor.

Claim 61

Dependent Claim 21 words

The fluid of claim 20 wherein said fluid comprises from about 0.1% to about 5% by weight of said anti-wear agent.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-06-09	1989-12-09	1990-06-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-06-09	1993-12-09	1994-06-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-06-09	1997-12-09	1998-06-10	$7700.00	Window Closed / Lapsed

Polymeric compositions, oil compositions containing said polymeric compositions, transmission fluids and hydraulic fluids

Abstract

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