US4792593A
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Novel acrylamide acrylate copolymers
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1987-11-05
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Granted: 1988-12-20
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Expires: 2007-11-05
Abstract
Abstract A terpolymer having the formula: <IMAGE> wherein R1 is selected from the group consisting of C1 to C20 alkyl groups, C6 to C20 aryl groups and C6 to C30 alkylaryl groups; R2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intri1sic viscosity of about 1 top about 25, wherein said terpolymer is formed by a free radical solution polymerization in the absence of a surfactant or emulsifier and comprises the polymerization of an acrylamide monomer, a metal acrylate monomer and an alkyl poly(etheroxy) acrylate monomer in the presence of a free radical initiation at a temperature of at least 5 DEG C. for at least 0.5 hours.
Inventors
- 👤 Donald N. Schulz
- 👤 Enock Berluche
- 👤 John J. Maurer
- 👤 Jan Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:42
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/588; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F220/56
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
A water soluble terpolymer having the formula: ##STR11## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 30 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25.
Claim 2
Dependent Claim
126 words
A water soluble terpolymer having the formula: ##STR11## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 30 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25.
Claim 3
Dependent Claim
21 words
A terpolymer according to claim 1 wherein R 1 is an alkylaryl group having about 1 to about 20 carbon atoms.
Claim 4
Dependent Claim
20 words
A terpolymer according to claim 1 wherein R 1 is an aryl group having about 6 to 20 carbon atoms.
Claim 5
Dependent Claim
15 words
A terpolymer according to claim 1 wherein said terpolymer is free of surfactant or emulsifier.
Claim 6
Dependent Claim
126 words
A terpolymer of the structure consisting of: ##STR12## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 30 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25.
Claim 7
Dependent Claim
126 words
A terpolymer of the structure consisting of: ##STR12## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 30 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25.
Claim 8
Dependent Claim
21 words
A terpolymer according to claim 5 wherein R 1 is an alkylaryl group having about 1 to about 20 carbon atoms.
Claim 9
Dependent Claim
20 words
A terpolymer according to claim 5 wherein R 1 is an aryl group having about 6 to 20 carbon atoms.
Claim 10
Dependent Claim
184 words
A water soluble terpolymer having the formula: ##STR13## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 20 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is abut 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25, wherein said terpolymer is formed by a free radical solution polymerization in the absence of a surfactant or emulsifier and comprises the polymerization of an acrylamide monomer, a metal acrylate monomer and an alkyl poly(etheroxy) acrylate monomer in the presence of a free radical initiation at a temperature of at least 5° C. for at least 0.5 hours.
Claim 11
Dependent Claim
184 words
A water soluble terpolymer having the formula: ##STR13## wherein R 1 is selected from the group consisting of C 1 to C 20 alkyl groups, C 6 to C 20 aryl groups and C 6 to C 20 alkylaryl groups; R 2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is abut 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intrinsic viscosity of about 1 to about 25, wherein said terpolymer is formed by a free radical solution polymerization in the absence of a surfactant or emulsifier and comprises the polymerization of an acrylamide monomer, a metal acrylate monomer and an alkyl poly(etheroxy) acrylate monomer in the presence of a free radical initiation at a temperature of at least 5° C. for at least 0.5 hours.
Claim 12
Dependent Claim
21 words
A terpolymer according to claim 8 wherein R 1 is an alkylaryl group having about 1 to about 20 carbon atoms.
Claim 13
Dependent Claim
20 words
A terpolymer according to claim 8 wherein R 1 is an aryl group having about 6 to 20 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |