US4522992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic monovinyl alkenyl alphaolefin anhydride terpolymers
Assignee: SC Johnson Commercial Markets Inc
•
Filing: 1983-06-28
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Granted: 1985-06-11
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Expires: 2003-06-28
Abstract
Abstract Terpolymers of anhydrides, aromatic mono-alkenyl monomers and higher 1-alkenes are prepared. Aqueous dispersions of these terpolymers are also prepared.
Inventors
- 👤 Calvin J. Verbrugge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:30
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/04; C08F210/00; C08F210/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
61 words
A terpolymer of from about 49 to 60 mole percent of a maleic anhydride, from about 20 to 40 mole percent of at least one aromatic mono-alkenyl monomer selected from the group consisting of styrene, alphamethyl styrene, vinyl toluene and mixtures thereof, and from about 40 to 20 mole percent of at least one 1-alkene having at least 18 carbon atoms.
Claim 2
Dependent Claim
61 words
A terpolymer of from about 49 to 60 mole percent of a maleic anhydride, from about 20 to 40 mole percent of at least one aromatic mono-alkenyl monomer selected from the group consisting of styrene, alphamethyl styrene, vinyl toluene and mixtures thereof, and from about 40 to 20 mole percent of at least one 1-alkene having at least 18 carbon atoms.
Claim 3
Dependent Claim
10 words
The terpolymer of claim 1 wherein the 1-alkene is 1-eicosene.
Claim 4
Dependent Claim
20 words
The terpolymer of claim 1 wherein the 1-alkene is a mixture of 1-alkenes having from 20 to 24 carbon atoms.
Claim 5
Dependent Claim
12 words
The terpolymer of claim 1 wherein the aromatic mono-alkenyl monomer is styrene.
Claim 6
Dependent Claim
39 words
The terpolymer of claim 1 of from about 49 to 55 mole percent maleic anhydride, 20 to 30 mole percent styrene and from 30 to 20 mole percent of at least one 1-alkene having at least 18 carbon atoms.
Claim 7
Dependent Claim
10 words
The terpolymer of claim 5 wherein the 1-alkene is 1-eicosene.
Claim 8
Dependent Claim
95 words
An aqueous alkaline dispersion of a terpolymer of from about 49 to 60 mole percent of a maleic anhydride, from about 20 to 40 mole percent of at least one aromatic mono-alkenyl monomer selected from the group consisting of styrene, alphamethyl styrene, vinyl toluene and mixtures thereof, and from about 40 to 20 mole percent of at least one 1-alkene having at least 18 carbon atoms, said dispersion having a viscosity at 25° C. of less than 20 centipoise at 10 percent terpolymer and having a pH within the range of from 6.5 to 10.
Claim 9
Dependent Claim
95 words
An aqueous alkaline dispersion of a terpolymer of from about 49 to 60 mole percent of a maleic anhydride, from about 20 to 40 mole percent of at least one aromatic mono-alkenyl monomer selected from the group consisting of styrene, alphamethyl styrene, vinyl toluene and mixtures thereof, and from about 40 to 20 mole percent of at least one 1-alkene having at least 18 carbon atoms, said dispersion having a viscosity at 25° C. of less than 20 centipoise at 10 percent terpolymer and having a pH within the range of from 6.5 to 10.
Claim 10
Dependent Claim
11 words
The aqueous dispersion of claim 7 wherein the 1-alkene is 1-eicosene.
Claim 11
Dependent Claim
21 words
The aqueous dispersion of claim 7 wherein the 1-alkene is a mixture of 1-alkenes having from 20 to 24 carbon atoms.
Claim 12
Dependent Claim
12 words
The dispersion of claim 7 wherein the aromatic mono-alkyl monomer is styrene.
Claim 13
Dependent Claim
32 words
The dispersion of claim 7 wherein the terpolymer comprises from 49 to 55 mole percent maleic anhydride, from 20 to 30 mole percent styrene, and from 30 to 20 mole percent 1-alkene.
Claim 14
Dependent Claim
10 words
The dispersion of claim 11 wherein the 1-alkene is 1-eicosene.
References Cited (Backward Citations)
US27140A
Cited
USRE27140E
Cited
US3488311A
Cited
US3598778A
Cited
US3560456A
Cited
US3723375A
Cited
US3720637A
Cited
US4328327A
Cited
US4358573A
Cited
US4358573B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |