US4517222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporous amine catalyst spray method of applying a film to a substrate
Assignee: Sherwin Williams Co
•
Filing: 1984-05-30
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Granted: 1985-05-14
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Expires: 2004-05-30
Abstract
Abstract Disclosed is a novel method for applying a film of a coating composition in liquid form onto a substrate which applied film cures rapidly at room temperature without heat curing. The coating composition comprises a hydroxyl-functional compound (preferably bearing aromatic-hydroxyl groups) and a multi-isocyanate cross-linking agent, optionally dispersed in a fugitive organic solvent therefor. The method comprises the steps of: (a) concurrently generating an atomizate of said coating composition and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous catalytic amine-bearing carrier gas flow; and (c) directing said mixture of step (b) onto said substrate to form said applied film.
Inventors
- 👤 James R. Blegen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:45
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; B; B05; B05D; B05D1/00; B05D1/02; B05D1/04; B05D1/34; B05D3/00; B05D3/04; B05D3/0433; C08G18/0895; C08G18/1891; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C09; C09D; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
90 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises a hydroxy-functional compound and a multiisocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) concurrently generating an atomizate of said coating composition and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous catalytic amine-bearing carrier gas flow; and (c) directing said mixture of step (b) onto said substrate to form said applied 10 film.
Claim 2
Independent Claim
90 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises a hydroxy-functional compound and a multiisocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) concurrently generating an atomizate of said coating composition and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous catalytic amine-bearing carrier gas flow; and (c) directing said mixture of step (b) onto said substrate to form said applied 10 film.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said coating composition additionally comprises a volatile organic solvent.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said hydroxyl-functional compound is resinous or polymeric.
Claim 5
Dependent Claim
11 words
The method of claim 1 wherein said carrier gas is air.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein said carrier gas is an inert gas.
Claim 7
Dependent Claim
15 words
The method of claim 5 wherein said inert carrier gas comprises nitrogen or carbon dioxide.
Claim 8
Dependent Claim
18 words
The method of claim 1 wherein said carrier gas is a mixture of air and an inert gas.
Claim 9
Dependent Claim
28 words
The method of claim 1 wherein said atomizing gas flow is at a sufficient temperature and pressure to prevent said catalytic amine from condensing from its vaporous state.
Claim 10
Dependent Claim
42 words
The method of claim 1 wherein said coated substrate is subjected to a thermal conditioning step comprising maintaining said cured film at a temperature of between about 50° and 150° C. for a time ranging from between about 1 and 5 minutes.
Claim 11
Dependent Claim
29 words
The method of claim 1 wherein said atomizate of step (b) is directed onto said substrate to form a cured film ranging up to about 15 mils in thickness.
Claim 12
Dependent Claim
12 words
The method of claim 1 wherein said multi-isocyanate cross-linking agent is polymeric.
Claim 13
Dependent Claim
20 words
The method of claim 1 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 14
Dependent Claim
20 words
The method of claim 11 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 15
Dependent Claim
31 words
The method of claim 1 wherein the ratio of hydroxyl equivalents of said hydroxyl-functional compound to the isocyanate equivalents of said multiisocyanate cross-linking agent range from between about 1:1 and 1:2.
Claim 16
Dependent Claim
57 words
The method of claim 1 wherein said vaporous tertiary amine catalyst is selected from the group consisting of triethyl amine, dimethyl ethyl amine, trimethyl amine, tributyl amine, dimethyl benzyl amine, dimethyl cyclohexyl amine, dimethyl ethanol amine, diethyl ethanol amine, triethanol amine, pyridine, 4-phenylpropyl pyridine, 2,4,6-collidine, quinoline, isoquinoline, N-ethyl morpholine, triethylene diamine, and the like and mixtures thereof.
Claim 17
Dependent Claim
24 words
The method of claim 1 wherein said atomizate is generated by atomizing said liquid coating composition with said vaporous catalytic-amine-bearing atomizing carrier gas flow.
Claim 18
Dependent Claim
15 words
The method of claim 1 wherein said concurrent generation is conducted under electrostatic spray conditions.
Claim 19
Dependent Claim
22 words
The method of claim 1 wherein said atomizate is generated mechanically and thereafter contacted with said vaporous catalytic amine-bearing carrier gas flow.
Claim 20
Dependent Claim
14 words
The method of claim 1 wherein said hydroxy-functional compound is an aromatic hydroxyl-functional compound.
Claim 21
Independent Claim
95 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises an aromatic hydroxyl-functional compound and a multi-isocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) forming an atomizing gas flow which comprises an intimate mixture of a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) atomizing said liquid coating composition with said vaporous catalytic amine-bearing atomizing carrier gas flow; and (c) directing said atomizate of step (b) onto said substrate to form said applied film.
Claim 22
Independent Claim
95 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises an aromatic hydroxyl-functional compound and a multi-isocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) forming an atomizing gas flow which comprises an intimate mixture of a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) atomizing said liquid coating composition with said vaporous catalytic amine-bearing atomizing carrier gas flow; and (c) directing said atomizate of step (b) onto said substrate to form said applied film.
Claim 23
Dependent Claim
15 words
The method of claim 20 wherein said coating composition additionally comprises a volatile organic solvent.
Claim 24
Dependent Claim
14 words
The method of claim 20 wherein said aromatic hydroxyl-functional compound is resinous or polymeric.
Claim 25
Dependent Claim
12 words
The method of claim 20 wherein said multi-isocyanate cross-linking agent is polymeric.
Claim 26
Dependent Claim
20 words
The method of claim 20 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 27
Dependent Claim
20 words
The method of claim 23 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 28
Dependent Claim
14 words
The method of claim 20 wherein said atomizing is conducted under electrostatic spray conditions.
Claim 29
Independent Claim
95 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises an aromatic hydroxyl-functional compound and a multi-isocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) concurrently generating an atomizate of said coating composition under airless or mechanical conditions, and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous ctalytic amine-bearing carrier gas flow; and (c) directing said mixture of step (b) onto said substrate to form said applied film.
Claim 30
Independent Claim
95 words
A method for applying onto a substrate a film of a coating composition in liquid form and which comprises an aromatic hydroxyl-functional compound and a multi-isocyanate cross-linking agent, wherein said applied film is curable rapidly at room temperature, which comprises: (a) concurrently generating an atomizate of said coating composition under airless or mechanical conditions, and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous ctalytic amine-bearing carrier gas flow; and (c) directing said mixture of step (b) onto said substrate to form said applied film.
Claim 31
Dependent Claim
22 words
The method of claim 27 wherein said atomizate is generated mechanically and thereafter contacted with said vaporous catalytic amine-bearing carrier gas flow.
Claim 32
Dependent Claim
25 words
The method of claim 27 wherein said atomizate is generated under airless spray conditions and thereafter contacted with said vaporous catalytic amine-bearing carrier gas flow.
Claim 33
Dependent Claim
15 words
The method of claim 27 wherein said coating composition additionally comprises a volatile organic solvent.
Claim 34
Dependent Claim
14 words
The method of claim 27 wherein said aromatic hydroxyl-functional compound is resinous or polymeric.
Claim 35
Dependent Claim
12 words
The method of claim 27 wherein said multi-isocyanate cross-linking agent is polymeric.
Claim 36
Dependent Claim
20 words
The method of claim 27 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 37
Dependent Claim
20 words
The method of claim 32 wherein said multi-isocyanate cross-linking agent is an aromatic multi-isocyanate, an aliphatic multi-isocyanate, or mixtures thereof.
Claim 38
Dependent Claim
15 words
the method of claim 27 wherein said concurrent generation is conducted under electrostatic spray conditions.
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |