Patent US4308188A successfully refreshed from Google Patents.
US4308188A
Expired / Lapsed
US
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Zwitterion polymer for water borne coatings
Assignee: International Minerals and Chemical Corp
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Filing: 1980-06-02
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Granted: 1981-12-29
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Expires: 2000-06-02
Abstract
Abstract A water-dilutable polymer for use in water-borne coatings comprising the half ester zwitterion reaction product of a polymer containing cyclic acid anhydride groups with an alkanolamine of the formula ##STR1## where R is hydrogen or hydroxy, R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen or an aliphatic hydrocarbon group of from 1 to 3 carbon atoms.
Inventors
- 👤 Zeno W. Wicks
- 👤 Milton E. Woods
- 👤 Chiew-Wah Koay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:29
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
53 words
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of a polymer containing acid anhydride groups with an alkanolamine of the formula ##STR5## where R is hydrogen or hydroxy and R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen.
Claim 2
Dependent Claim
53 words
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of a polymer containing acid anhydride groups with an alkanolamine of the formula ##STR5## where R is hydrogen or hydroxy and R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen.
Claim 3
Dependent Claim
13 words
The polymer of claim 1 wherein R and R 1 are each hydrogen.
Claim 4
Dependent Claim
13 words
The polymer of claim 1 wherein R and R 1 are each hydroxyl.
Claim 5
Dependent Claim
14 words
The polymer of claim 1 wherein R is hydroxyl and R 1 is hydrogen.
Claim 6
Dependent Claim
14 words
The polymer of claim 1 wherein R is hydroxyl and R 1 is methyl.
Claim 7
Dependent Claim
15 words
The water borne coating consisting essentially of the polymer of claim 1 dispersed in water.
Claim 8
Dependent Claim
74 words
A polymer obtained by reacting (a) a copolymer by reacting the vinyl ester of trimellitic anhydride with an alkyl acrylate or alkyl methacrylate, or mixture thereof, the alkyl group having from 1-4 carbon atoms, and (b) an alkanolamine of the formula ##STR6## where R is hydrogen or hydroxy and R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen, an aliphatic hydrocarbon group or aryl.
Claim 9
Dependent Claim
74 words
A polymer obtained by reacting (a) a copolymer by reacting the vinyl ester of trimellitic anhydride with an alkyl acrylate or alkyl methacrylate, or mixture thereof, the alkyl group having from 1-4 carbon atoms, and (b) an alkanolamine of the formula ##STR6## where R is hydrogen or hydroxy and R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen, an aliphatic hydrocarbon group or aryl.
Claim 10
Dependent Claim
10 words
A polymer of claim 7 wherein the alkanolamine is 2-amino-2-methyl-1-propanol.
Claim 11
Dependent Claim
75 words
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of (a) a polymer prepared from a maleated epoxy ester, a maleated drying oil, styrenemaleic anhydride, maleinized rosin, 4-palmityl-1,2-butyric anhydride and 3-methoxy-1,2-butyric anhydride with (b) an alkanolamine of the formula ##STR7## where R is hydrogen or hydroxy, R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen, an aliphatic hydrocarbon group or aryl.
Claim 12
Dependent Claim
75 words
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of (a) a polymer prepared from a maleated epoxy ester, a maleated drying oil, styrenemaleic anhydride, maleinized rosin, 4-palmityl-1,2-butyric anhydride and 3-methoxy-1,2-butyric anhydride with (b) an alkanolamine of the formula ##STR7## where R is hydrogen or hydroxy, R 1 is hydrogen, hydroxy or methyl and can be the same or different, and R 2 is hydrogen, an aliphatic hydrocarbon group or aryl.
Claim 13
Dependent Claim
10 words
A polymer of claim 9 prepared from maleated epoxy ester.
Claim 14
Dependent Claim
11 words
A polymer of claim 9 prepared from a maleated drying oil.
Claim 15
Dependent Claim
9 words
A polymer of claim 9 prepared from styrene-maleic anhydride.
Claim 16
Dependent Claim
9 words
A polymer of claim 9 prepared from maleinized rosin.
Claim 17
Dependent Claim
10 words
A polymer of claim 9 prepared from polymeric 4-palmityl-1,2-butyric anhydride.
Claim 18
Dependent Claim
10 words
A polymer of claim 9 prepared from polymeric 3-methoxy-1,2-butyric anhydride.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |