US3874898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying process and resultant product
Assignee: VAPOCURE INTERNATIONAL PTY Ltd A Co OF NEW SOUTH WALES AUSTRALIA
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Filing: 1972-06-19
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Granted: 1975-04-01
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Expires: 1992-06-19
Abstract
Abstract Process for rapidly forming a dried coating upon a suitable substrate. Process comprises coating a non-aqueous vehicle consisting essentially of at least one polyisocyanate prepolymer on the substrate and treating the vehicle with a vapor agent consisting essentially of ammonia, monofunctional amine or polyfunctional amine.
Inventors
- 👤 Alan Don Mcinnes
- 👤 Robert John Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:13
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/04; B41; B41M; B41M7/00; B41M7/0036; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/16; C08G18/18; C08G18/1891; C09; C09D; C09D11/00; C09D11/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
59 words
A PROCESS FOR RAPIDLY FORMING A DRIED COATING UPON A SUITABLE SUBSTRATE COMPRISING (1) COATING A VEHICLE CONSISTING ESSENTIALLY OF AT LEAST ONE POLYISOCYANATE PREPOLYMER AND AT LEAST ONE ORGANIC SOLVENT UPON SAID SUBSTRATE AND (2) SUBJECTING SAID VEHICLE TO TREATMENT WITH AN AGENT CONSISTING ESSENTIALLY OF AMMONIA, MONOFUNCTIONAL AMINE OR POLYFUNCTIONAL AMINE, SAID AGENT BEING IN VAPOR FORM.
Claim 2
Dependent Claim
59 words
A PROCESS FOR RAPIDLY FORMING A DRIED COATING UPON A SUITABLE SUBSTRATE COMPRISING (1) COATING A VEHICLE CONSISTING ESSENTIALLY OF AT LEAST ONE POLYISOCYANATE PREPOLYMER AND AT LEAST ONE ORGANIC SOLVENT UPON SAID SUBSTRATE AND (2) SUBJECTING SAID VEHICLE TO TREATMENT WITH AN AGENT CONSISTING ESSENTIALLY OF AMMONIA, MONOFUNCTIONAL AMINE OR POLYFUNCTIONAL AMINE, SAID AGENT BEING IN VAPOR FORM.
Claim 3
Dependent Claim
10 words
The process of claim 1 wherein the agent is ammonia.
Claim 4
Dependent Claim
20 words
The process of claim 1 wherein the agent is a primary monofunctional aliphatic amine or a primary difunctional aliphatic amine.
Claim 5
Dependent Claim
24 words
The process of claim 1 wherein the agent is initially in liquid form and is atomized so as to produce the requisite vapor phase.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein said vehicle is (1) a paste printing vehicle or (2) a paste printing ink incorporating said printing vehicle.
Claim 7
Dependent Claim
20 words
The process of claim 1 wherein said vehicle is (1) a liquid printing ink or (2) a screen printing ink.
Claim 8
Dependent Claim
22 words
The process of claim 1 wherein said vehicle is (1) a liquid adhesive, (2) a surface coating or (3) a caulking compound.
Claim 9
Dependent Claim
16 words
The process of claim 1 wherein said substrate is of a material suitable for printing thereon.
Claim 10
Dependent Claim
25 words
The process of claim 8 wherein said vehicle is (1) a paste printing ink, (2) a liquid printing ink or (3) a screen printing ink.
Claim 11
Dependent Claim
21 words
The process of claim 1 wherein said substrate is of a material suitable for coating thereon and said vehicle is unpigmented.
Claim 12
Dependent Claim
54 words
A process for rapidly forming a dried coating upon a suitable substrate comprising (1) coating a non-aqueous vehicle consisting essentially of at least one polyisocyanate prepolymer upon said substrate and (2) subjecting said vehicle to treatment with an agent consisting essentially of ammonia, monofunctional amine or polyfunctional amine, said agent being in vapor form.
Claim 13
Dependent Claim
54 words
A process for rapidly forming a dried coating upon a suitable substrate comprising (1) coating a non-aqueous vehicle consisting essentially of at least one polyisocyanate prepolymer upon said substrate and (2) subjecting said vehicle to treatment with an agent consisting essentially of ammonia, monofunctional amine or polyfunctional amine, said agent being in vapor form.
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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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |