US4401794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture curing of polymer coating compositions containing isocyanatoalkyl esters of unsaturated carboxylic acids
Assignee: Dow Chemical Co
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Filing: 1981-10-16
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Granted: 1983-08-30
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Expires: 2001-10-16
Abstract
Abstract A polymer containing an isocyanatoalkyl ester of an unsaturated carboxylic acid and optionally, another addition polymerizable monomer, is cross-linked using water as a curing agent. Water may be mixed into the composition or transmitted to the polymer by the atmosphere. The cross-linked polymer forms a solid, insoluble coating material which is useful as an industrial coating.
Inventors
- 👤 Sharon L. Oriel
- 👤 Jimmy D. Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:30
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/302; C08G18/70; C08G18/72; C08G18/728; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/14; C08J2333/00; C08J2333/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
31 words
A method of curing a polymer containing an isocyanatoalkyl ester of an unsaturated carboxylic acid, comprising contacting the polymer with a sufficient amount of water to substantially cross-link the isocyanate groups.
Claim 2
Independent Claim
31 words
A method of curing a polymer containing an isocyanatoalkyl ester of an unsaturated carboxylic acid, comprising contacting the polymer with a sufficient amount of water to substantially cross-link the isocyanate groups.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the isocyanatoalkyl ester is 2-isocyanatoethyl methacrylate or 2-isocyanatoethyl acrylate.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the polymer also contains another addition polymerizable monomer.
Claim 5
Dependent Claim
29 words
The method of claim 3 wherein the other addition polymerizable monomer is selected from the group consisting of butyl acrylate, ethyl acrylate, methyl methacrylate, styrene, butadiene, vinyltoluene and acrylonitrile.
Claim 6
Dependent Claim
14 words
The cross-linked polymer formed by the method of claim 1, 2, 3 or 4.
Claim 7
Dependent Claim
9 words
A substrate coated with the polymer of claim 5.
Claim 8
Independent Claim
32 words
A method of curing a polymer containing an isocyanatoalkyl ester of an unsaturated carboxylic acid, comprising exposing the polymer to a moisture-containing atmosphere for a time sufficient to substantially cross-link the polymer.
Claim 9
Independent Claim
32 words
A method of curing a polymer containing an isocyanatoalkyl ester of an unsaturated carboxylic acid, comprising exposing the polymer to a moisture-containing atmosphere for a time sufficient to substantially cross-link the polymer.
Claim 10
Dependent Claim
15 words
The method of claim 7 wherein the isocyanatoalkyl ester is 2-isocyanatoethyl methacrylate or 2-isocyanatoethyl acrylate.
Claim 11
Dependent Claim
14 words
The method of claim 8 wherein the polymer also contains another addition polymerizable monomer.
Claim 12
Dependent Claim
29 words
The method of claim 9 wherein the other addition polymerizable monomer is selected from the group consisting of butyl acrylate, ethyl acrylate, methyl methacrylate, styrene, butadiene, vinyltoluene and acrylonitrile.
Claim 13
Dependent Claim
20 words
The method of claim 7, 8, 9 or 10 wherein the atmosphere has a 40 to 75 percent relative humidity.
Claim 14
Dependent Claim
16 words
The method of claim 11 wherein the atmosphere has a temperature of 0° to 35° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |