US4522973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature crosslinkable emulsion
Assignee: Wyeth Holdings LLC
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Filing: 1983-09-06
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Granted: 1985-06-11
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Expires: 2003-09-06
Abstract
Abstract A low temperature crosslinkable emulsion is provided that includes an emulsified, crosslinkable polymer containing repeating units derived from a certain activated ester-containing vinyl monomer, and further includes a crosslinking agent having a plurality of functional groups each capable at low temperature of reacting with the activated ester groups, upon coalescence of micelles of the emulsion. Also provided is a crosslinked coating obtained by curing the emulsion.
Inventors
- 👤 David A. Ley
- 👤 Herbert Burkhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:27
CPC Classifications
C; C09; C09D; C09D157/00; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1802; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20; C08F2810/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
143 words
A low temperature crosslinkable emulsion comprising (a) an emulsified, crosslinkable polymer containing repeating units derived from an activated ester-containing vinyl monomer of the formula ##STR3## wherein the R 1 group is H or methyl, and the R 2 and R 3 groups are independently selected from alkyls of 1-4 carbon atoms; with any balance of repeating units derived from one or more copolymerizable ethylenically unsaturated comonomers; and (b) a crosslinking agent having a plurality of primary amine groups each capable at low temperature of replacing the OR 3 moiety by nucleophilic substitution, upon coalescence of micelles of said emulsion which occurs upon evaporation of water therefrom; wherein the crosslinkable polymer contains a sufficient amount of said repeating units derived from said activated ester-containing vinyl monomer, and said crosslinking agent is present in a sufficient amount, to produce a crosslinked polymer upon said coalescence.
Claim 2
Dependent Claim
143 words
A low temperature crosslinkable emulsion comprising (a) an emulsified, crosslinkable polymer containing repeating units derived from an activated ester-containing vinyl monomer of the formula ##STR3## wherein the R 1 group is H or methyl, and the R 2 and R 3 groups are independently selected from alkyls of 1-4 carbon atoms; with any balance of repeating units derived from one or more copolymerizable ethylenically unsaturated comonomers; and (b) a crosslinking agent having a plurality of primary amine groups each capable at low temperature of replacing the OR 3 moiety by nucleophilic substitution, upon coalescence of micelles of said emulsion which occurs upon evaporation of water therefrom; wherein the crosslinkable polymer contains a sufficient amount of said repeating units derived from said activated ester-containing vinyl monomer, and said crosslinking agent is present in a sufficient amount, to produce a crosslinked polymer upon said coalescence.
Claim 3
Dependent Claim
25 words
The emulsion of claim 1, wherein the crosslinkable polymer contains about 1-15 weight percent of said repeating units derived from said activated ester-containing vinyl monomer.
Claim 4
Dependent Claim
25 words
The emulsion of claim 1, wherein the crosslinkable polymer contains about 2-10 weight percent of said repeating units derived from said activated ester-containing vinyl monomer.
Claim 5
Dependent Claim
16 words
The emulsion of claim 1, wherein said activated ester-containing vinyl monomer is methyl acrylamidoglycolate methyl ether.
Claim 6
Dependent Claim
14 words
The emulsion of claim 1, wherein said crosslinking agent has three primary amine groups.
Claim 7
Dependent Claim
12 words
The emulsion of claim 5, wherein said crosslinking agent is N,N'-bis(6-aminohexyl)-2-[(6-aminohexyl)amino] butanediamide.
Claim 8
Dependent Claim
14 words
The emulsion of claim 1, wherein said crosslinking agent has two primary amine groups.
Claim 9
Dependent Claim
11 words
The emulsion of claim 7, wherein said crosslinking agent is 4,7-dioxodecane-1,10-diamine.
Claim 10
Dependent Claim
11 words
The emulsion of claim 7, wherein said crosslinking agent is 1,6-hexanediamine.
Claim 11
Dependent Claim
22 words
The emulsion of claim 1, wherein substantially all the activated ester-containing vinyl monomer has been placed into the core of the micelles.
Claim 12
Dependent Claim
11 words
A crosslinked coating obtained by curing the emulsion of claim 1.
Claim 13
Dependent Claim
38 words
A crosslinked coating obtained by applying the emulsion of claim 10 as a coating within a short time after forming said emulsion by the admixture of the polymer and said crosslinking agent, and then curing the applied emulsion.
References Cited (Backward Citations)
US4289676A
Cited
US4446280A
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 |