US4490308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New water-soluble sulfonated monomers
Assignee: ChampionX LLC
•
Filing: 1983-06-30
•
Granted: 1984-12-25
•
Expires: 2003-06-30
Abstract
Abstract Novel water-soluble vinyl addition monomers are described generally by the formula: ##STR1## wherein: M is hydrogen, lithium, sodium, potassium, magnesium, or calcium; R is allyl or methallyl; R 1 is hydrogen, allyl or methallyl; R 2 is hydrogen or sulfonato: R 3 is hydrogen or sulfonato; and providing that R 2 is not the same as R 3 .
Inventors
- 👤 Dodd W. Fong
- 👤 David J. Kowalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
C; C08; C08F; C08F26/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
60 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the general formula: ##STR21## wherein: M is hydrogen, lithium, sodium, potassium, magnesium, or calcium; R is allyl; R 1 is hydrogen or allyl; R 2 is hydrogen or sulfonato; R 3 is hydrogen or sulfonato; and providing that R 2 is not the same as R 3 .
Claim 2
Dependent Claim
60 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the general formula: ##STR21## wherein: M is hydrogen, lithium, sodium, potassium, magnesium, or calcium; R is allyl; R 1 is hydrogen or allyl; R 2 is hydrogen or sulfonato; R 3 is hydrogen or sulfonato; and providing that R 2 is not the same as R 3 .
Claim 3
Dependent Claim
37 words
The anionic monomer of claim 1 wherein R is allyl, R 1 is hydrogen, R 2 is hydrogen, R 3 is sulfonato, and M is from the group consisting of hydrogen, lithium, sodium, potassium, magnesium and calcium.
Claim 4
Dependent Claim
23 words
The anionic monomer of claim 1 wherein R and R 1 are both allyl, R 2 is hydrogen, and R 3 is sulfonato.
Claim 5
Dependent Claim
35 words
The anionic monomer of claim 1 wherein R is allyl, R 1 is hydrogen, R 2 is sulfonato, R 3 is hydrogen, and M is from the group hydrogen, lithium, sodium, potassium, magnesium and calcium.
Claim 6
Dependent Claim
35 words
The anionic monomer of claim 1 wherein R and R 1 are both allyl, R 2 is sulfonato, R 3 is hydrogen, and M is from the group hydrogen, lithium, sodium, potassium, magnesium, and calcium.
Claim 7
Dependent Claim
30 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR22## wherein M is chosen from the group consisting of hydrogen, lithium, sodium, potassium and ammonium.
Claim 8
Dependent Claim
30 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR22## wherein M is chosen from the group consisting of hydrogen, lithium, sodium, potassium and ammonium.
Claim 9
Dependent Claim
30 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR23## wherein M is chosen from the group consisting of hydrogen, lithium, sodium, potassium and ammonium.
Claim 10
Dependent Claim
30 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR23## wherein M is chosen from the group consisting of hydrogen, lithium, sodium, potassium and ammonium.
Claim 11
Dependent Claim
25 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR24## wherein M is from hydrogen, lithium, sodium, potassium, and ammonium.
Claim 12
Dependent Claim
25 words
An anionic monomer capable of homopolymerization and copolymerization which is represented by the formula: ##STR24## wherein M is from hydrogen, lithium, sodium, potassium, and ammonium.
References Cited (Backward Citations)
US2383130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |