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US4900569A Expired / Lapsed US ⏱️ 0.0 years remaining

Terpolymers of alkyl acrylates or methacrylates, an olefinically unsaturated homo or heterocyclic-nitrogen compound and an allyl acrylate or methacrylate or perfluoroalkyl ethyl acrylates or methacrylates

Assignee: ConocoPhillips Co
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Filing: 1988-10-31
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Granted: 1990-02-13
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Expires: 2008-10-31
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Abstract

Abstract Terpolymers having enhanced pour point depressant properties are disclosed which comprise (1) an alkyl ester of unsaturated monocarboxylic acid, (2) an olefinically unsaturated homo or heterocyclic-nitrogen compound, and (3) an allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate. A process for preparing the terpolymers is additionally disclosed.

Inventors

  • 👤 Hanh T. Le

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:12
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/06; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 137 words
An alkyl ester of unsaturated monocarboxylic acid, an olefinically unsaturated homo or heterocryclic-nitrogen compound and allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate terpolymer having pour point depressant properties, said terpolymer comprising the reaction product of (a) a monomeric alkyl ester of carboxylic acid or a mixture of alkyl esters of carboxylic acid having the formula: ##STR4## wherein R is H or CH 3 and R 1 is alkyl having from about 1 to about 30 carbon atoms; (b) vinyl pyridine; and (c) allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate or a mixture of perfluoroalkyl ethyl acrylates or methacrylates, said perfluoroalkyl ethyl acrylates or methacrylates having the formula: ##STR5## wherein R 2 is H or CH 3 , and K is an integer of from about 1 to about 20.
Claim 2
Dependent Claim 137 words
An alkyl ester of unsaturated monocarboxylic acid, an olefinically unsaturated homo or heterocryclic-nitrogen compound and allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate terpolymer having pour point depressant properties, said terpolymer comprising the reaction product of (a) a monomeric alkyl ester of carboxylic acid or a mixture of alkyl esters of carboxylic acid having the formula: ##STR4## wherein R is H or CH 3 and R 1 is alkyl having from about 1 to about 30 carbon atoms; (b) vinyl pyridine; and (c) allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate or a mixture of perfluoroalkyl ethyl acrylates or methacrylates, said perfluoroalkyl ethyl acrylates or methacrylates having the formula: ##STR5## wherein R 2 is H or CH 3 , and K is an integer of from about 1 to about 20.
Claim 3
Dependent Claim 35 words
The terpolymer of claim 1 wherein components (a), (b), and (c) are reacted in a mole ratio of from about 0.01:0.001:0.009 to about 1.0:1.0:1.0, said terpolymer having a molecular weight of at least about 1,000.
Claim 4
Dependent Claim 16 words
The terpolymer of claim 1 having a molecular weight of from about 1,000 to about 100,000.
Claim 5
Dependent Claim 22 words
The terpolymer of claim 1 wherein R 1 of component (a) is alkyl having from about 4 to about 28 carbon atoms.
Claim 6
Dependent Claim 89 words
The terpolymer of claim 1 wherein the monomeric alkyl ester of carboxylic acid of component (a) is a member selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, pentyl acrylate, hexyl acrylate, heptyl acrylate, octyl acrylate, nonyl acrylate, decyl acrylate, undecyl acrylate, dodecyl acrylate, tridecyl acrylate, tetradecyl acrylate, pentadecyl acrylate, hexadecyl acrylate, heptadecyl acrylate, octadecyl acrylate, nonadecyl acrylate, eicosyl acrylate, heneicosyl acrylate, docosyl acrylate, tricosyl acrylate, tetracosyl acrylate, pentacosyl acrylate, hexacosyl acrylate, heptacosyl acrylate, octacosyl acrylate, nonacosyl acrylate, and triacontyl acrylate and mixtures thereof.
Claim 7
Dependent Claim 89 words
The terpolymer of claim 1 wherein the monomeric alkyl ester of carboxylic acid of component (a) is a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, pentyl methacrylate, hexyl methacrylate, heptyl methacrylate, octyl methacrylate, nonyl methacrylate, decyl methacrylate, undecyl methacrylate, dodecyl methacrylate, tridecyl methacrylate, tetradecyl methacrylate, pentadecyl methacrylate, hexadecyl methacrylate, heptadecyl methacrylate, octadecyl methacrylate, nonadecyl methacrylate, eicosyl methacrylate, heneicosyl methacrylate, docosyl methacrylate, tricosyl methacrylate, tetracosyl methacrylate, pentacosyl methacrylate, hexacosyl methacrylate, heptacosyl methacrylate, octacosyl methacrylate, nonacosyl methacrylate and triacontyl methacrylate and mixtures thereof.
Claim 8
Dependent Claim 31 words
The terpolymer of claim 1 wherein the vinyl pyridine of component (b) is a member selected from the group consisting of 2-vinyl pyridine, 4-vinyl pyridine and 5-ethyl-2-vinyl pyridine and mixtures thereof.
Claim 9
Dependent Claim 15 words
The terpolymer of claim 1 wherein the vinyl pyridine of component (b) is 4-vinyl pyridine.
Claim 10
Dependent Claim 20 words
The terpolymer of claim 1 wherein K of component (c) is an integer of from about 3 to about 15.
Claim 11
Dependent Claim 86 words
The terpolymer of claim 1 wherein the perfluoroalkyl ethyl acrylate of component (c) is a member selected from the group consisting of perfluoromethyl ethyl acrylate, perfluoroethyl ethyl acrylate, perfluoropropyl ethyl acrylate, perfluorobutyl ethyl acrylate, perfluoropentyl ethyl acrylate, perfluorohexyl ethyl acrylate, perfluoroheptyl ethyl acrylate, perfluorooctyl ethyl acrylate, perfluorononyl ethyl acrylate, perfluorodecyl ethyl acrylate, perfluoroundecyl ethyl acrylate, perfluorododecyl ethyl acrylate, perfluorotridecyl ethyl acrylate, perfluorotetradecyl ethyl acrylate, perfluoropentadecyl ethyl acrylate, perfluorohexadecyl ethyl acrylate, perfluoroheptadecyl ethyl acrylate, perfluorooctadecyl ethyl acrylate, perfluorononadecyl ethyl acrylate, and perfluoroeicosyl ethyl acrylate and mixtures thereof.
Claim 12
Dependent Claim 86 words
The terpolymer of claim 1 wherein the perfluoroalkyl ethyl methacrylate of component (c) is a member selected from the group consisting of perfluoromethyl ethyl methacrylate, perfluoroethyl ethyl methacrylate, perfluoropropyl ethyl methacrylate, perfluorobutyl ethyl methacrylate, perfluoropentyl ethyl methacrylate, perfluorohexyl ethyl methacrylate, perfluoroheptyl ethyl methacrylate, perfluorooctyl ethyl methacrylate, perfluorononyl ethyl methacrylate, perfluorodecyl ethyl methacrylate, perfluoroundecyl ethyl methacrylate, perfluorododecyl ethyl methacrylate, perfluorotridecyl ethyl methacrylate, perfluorotetradecyl ethyl methacrylate, perfluoropentadecyl ethyl methacrylate, perfluorohexadecyl ethyl methacrylate, perfluoroheptadecyl ethyl methacrylate, perfluorooctadecyl ethyl methacrylate, perfluorononadecyl ethyl methacrylate, and perfluoroeicosyl ethyl methacrylate and mixtures thereof.
Claim 13
Dependent Claim 153 words
A terpolymer having pour point depressant properties which is obtained by free radical polymerization of a monomeric mixture comprising from about 0.01 to about 1.0 mole percent of (a) an alkyl ester of carboxylic acid or a mixture of alkyl esters of carboxylic acid having the formula: ##STR6## wherein R is H or CH 3 and R 1 is alkyl having from about 1 to about 30 carbon atoms; (b) from about 0.01 to about 0.1 mole percent of vinyl pyridine; and (c) from about 0.01 to about 1.0 mole percent of allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate or a mixture of perfluoroalkyl ethyl acrylates or methacrylates, said perfluoroalkyl ethyl acrylates or methacrylates having the formula: ##STR7## wherein R 2 is H or CH 3 and K is an integer of from about 3 to about 15, said terpolymer having a molecular weight of at least about 1,000.
Claim 14
Dependent Claim 153 words
A terpolymer having pour point depressant properties which is obtained by free radical polymerization of a monomeric mixture comprising from about 0.01 to about 1.0 mole percent of (a) an alkyl ester of carboxylic acid or a mixture of alkyl esters of carboxylic acid having the formula: ##STR6## wherein R is H or CH 3 and R 1 is alkyl having from about 1 to about 30 carbon atoms; (b) from about 0.01 to about 0.1 mole percent of vinyl pyridine; and (c) from about 0.01 to about 1.0 mole percent of allyl acrylate or methacrylate or a perfluoroalkyl ethyl acrylate or methacrylate or a mixture of perfluoroalkyl ethyl acrylates or methacrylates, said perfluoroalkyl ethyl acrylates or methacrylates having the formula: ##STR7## wherein R 2 is H or CH 3 and K is an integer of from about 3 to about 15, said terpolymer having a molecular weight of at least about 1,000.
Claim 15
Dependent Claim 16 words
The terpolymer of claim 12 having a molecular weight of from about 2,000 to about 50,000.
Claim 16
Dependent Claim 22 words
The terpolymer of claim 12 wherein R 1 of component (a) is alkyl having from about 4 to about 28 carbon atoms.
Claim 17
Dependent Claim 79 words
The terpolymer of claim 12 wherein the monomeric alkyl ester of carboxylic acid of component (a) is a member selected from the group consisting of butyl methacrylate, pentyl methacrylate, hexyl methacrylate, heptyl methacrylate, octal methacrylate, nonyl methacrylate, decyl methacrylate, undecyl methacrylate, dodecyl methacrylate tridecyl methacrylate, tetradecyl methacrylate, pentadecyl methacrylate, hexadecyl methacrylate, heptadecyl methacrylate, octadecyl methacrylate, nonadecyl methacrylate, eicosyl methacrylate, heneicosyl methacrylate, docosyl methacrylate, tricosyl methacrylate, tetracosyl methacrylate, pentacosyl methacrylate, hexacosyl methacrylate, heptacosyl methacrylate, and octacosyl methacrylate and mixtures thereof.
Claim 18
Dependent Claim 79 words
The terpolymer of claim 12 wherein the monomeric alkyl ester of carboxylic acid of component (a) is a member selected from the group consisting of butyl acrylate, pentyl acrylate, hexyl acrylate, heptyl acrylate, octal acrylate, nonyl acrylate, decyl acrylate, undecyl acrylate, dodecyl acrylate tridecyl acrylate, tetradecyl acrylate, pentadecyl acrylate, hexadecyl acrylate, heptadecyl acrylate, octadecyl acrylate, nonadecyl acrylate, eicosyl acrylate, heneicosyl acrylate, docosyl acrylate, tricosyl acrylate, tetracosyl acrylate, pentacosyl acrylate, hexacosyl acrylate, heptacosyl acrylate, and octacosyl acrylate and mixtures thereof.
Claim 19
Dependent Claim 29 words
The terpolymer of claim 12 wherein the vinyl pyridine of component (b) is a member selected from the group consisting of 2-vinyl pyridine and 4-vinyl pyridine and mixtures thereof.
Claim 20
Dependent Claim 15 words
The terpolymer of claim 12 wherein the vinyl pyridine of component (b) is 4-vinyl pyridine.
Claim 21
Dependent Claim 21 words
The terpolymer of claim 12 wherein K of component (c) is is an integer of from about 3 to about 15.
Claim 22
Dependent Claim 65 words
The terpolymer of claim 12 wherein the perfluoroalkyl ethyl acrylate of component (c) is a member selected from the group consisting of perfluoropropyl ethyl acrylate, perfluorobutyl ethyl acrylate, perfluoropentyl ethyl acrylate, perfluorohexyl ethyl acrylate, perfluoroheptyl ethyl acrylate, perfluorooctyl ethyl acrylate, perfluorononyl ethyl acrylate, perfluorodecyl ethyl acrylate, perfluoroundecyl ethyl acrylate, perfluorododecyl ethyl acrylate, perfluorotridecyl ethyl acrylate, perfluorotetradecyl ethyl acrylate, and perfluoropentadecyl ethyl acrylate and mixtures thereof.
Claim 23
Dependent Claim 65 words
The terpolymer of claim 12 wherein the perfluoroalkyl ethyl methacrylate of component (c) is a member selected from the group consisting of perfluoropropyl ethyl methacrylate, perfluorobutyl ethyl methacrylate, perfluoropentyl ethyl methacrylate, perfluorohexyl ethyl methacrylate, perfluoroheptyl ethyl methacrylate, perfluorooctyl ethyl methacrylate, perfluorononyl ethyl methacrylate, perfluorodecyl ethyl methacrylate, perfluoroundecyl ethyl methacrylate, perfluorododecyl ethyl methacrylate, perfluorotridecyl ethyl methacrylate, perfluorotetradecyl ethyl methacrylate, and perfluoropentadecyl ethyl methacrylate and mixtures thereof.

References Cited (Backward Citations)

CA695679A Cited
US2798063A Cited
GB842990A Cited
US2889282A Cited
US3147222A Cited
US3058818A Cited
US3304260A Cited
US3215632A Cited
US3260728A Cited
US3455889A Cited
US3957659A Cited
US3868231A Cited
US4161392A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-12 1993-08-14 1994-02-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-12 1997-08-14 1998-02-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-12 2001-08-14 2002-02-13 $7700.00 Window Closed / Lapsed

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