US4713481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine-functional monoethylenic monomers, acrylic copolymers and aqueous coating compositions containing the same
Assignee: DeSoto Inc
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Filing: 1986-10-30
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Granted: 1987-12-15
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Expires: 2006-10-30
Abstract
Abstract Monoethylenically unsaturated polymerizable monomers carrying a plurality of ketimine-blocked primary amine groups are disclosed. These are preferably provided by reacting an organic diisocyanate with the single secondary amine group of a ketimine-blocked diprimary amine carrying a single secondary amino hydrogen atom and then reacting a monohydric acrylate with the other isocyanate group. These monomers are polymerizable to provide copolymers with other monoethylenically unsaturated monomers, and especially acrylate-functional monomers, in which the amine groups remain blocked. These amine groups become unblocked when the copolymers are dispersed in water to form various types of aqueous coating compositions.
Inventors
- 👤 Anthony J. Tortorello
- 👤 Joseph D. Lukanich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:53
CPC Classifications
C; C08; C08F; C08F246/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
13 words
A monoethylenically unsaturated polymerizable monomer carrying a plurality of ketimine-blocked primary amine groups.
Claim 2
Dependent Claim
13 words
A monoethylenically unsaturated polymerizable monomer carrying a plurality of ketimine-blocked primary amine groups.
Claim 3
Dependent Claim
26 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 1 in which the monoethylenic unsaturation of said monomer is provided by the acrylate or methacrylate group.
Claim 4
Dependent Claim
23 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 1 in which said ketimine-blocked primary amine groups are provided by diketimine-blocked diethylene triamine.
Claim 5
Dependent Claim
39 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 1 in which said ketimine-blocked primary amine groups are provided by diketimine-blocked dialkylene triamine in which the alkylene groups contain from 2-4 carbon atoms, and said monomer contains acrylate unsaturation.
Claim 6
Dependent Claim
17 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 1 in which said monomer is a urethane.
Claim 7
Dependent Claim
85 words
A monethylenically unsaturated polymerizable monomer carrying blocked primary amine groups and having the formula: ##STR2## in which: R 1 is a divalent organic aliphatic or aromatic molecule connecting the two isocyanate groups the residues of which are shown; R 2 is C 2 -C 4 alkylene; R 3 is a monoethylenically unsaturated carboxylic acid forming an ester with R 2 ; R 4 is C 2 -C 4 alkylene; and Z is the residue of an aliphatic ketone forming a ketimine with the nitrogen atom.
Claim 8
Dependent Claim
85 words
A monethylenically unsaturated polymerizable monomer carrying blocked primary amine groups and having the formula: ##STR2## in which: R 1 is a divalent organic aliphatic or aromatic molecule connecting the two isocyanate groups the residues of which are shown; R 2 is C 2 -C 4 alkylene; R 3 is a monoethylenically unsaturated carboxylic acid forming an ester with R 2 ; R 4 is C 2 -C 4 alkylene; and Z is the residue of an aliphatic ketone forming a ketimine with the nitrogen atom.
Claim 9
Dependent Claim
16 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 6 in which R 2 is ethylene.
Claim 10
Dependent Claim
16 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 6 in which R 4 is ethylene.
Claim 11
Dependent Claim
16 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 8 in which R 4 is ethylene.
Claim 12
Dependent Claim
20 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 6 in which R 3 is acrylic acid or methacrylic acid.
Claim 13
Dependent Claim
20 words
A monoethylenically unsaturated polymerizable monomer as recited in claim 9 in which R 3 is acrylic acid or methacrylic acid.
References Cited (Backward Citations)
US4189601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |