Patent US4467014A successfully refreshed from Google Patents.
US4467014A
Expired / Lapsed
US
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Polyisocyanurate-coated foam insulation board and method of preparation
Assignee: LINAMAR MACHINE Ltd
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Filing: 1983-04-06
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Granted: 1984-08-21
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Expires: 2003-04-06
Abstract
Abstract A polyisocyanurate coating composition, which composition comprises and is prepared by reaching 100 parts of a methylene diisocyanate, having an average functionality of less than about 2.4, with a mixture of a di or triethylene glycol and a methoxy polyethylene glycol, the reaction carried out in the presence of a trimerization catalyst, and to a polyisocyanurate-coated, rigid-foam insulation board coated with such composition.
Inventors
- 👤 Stuart B. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:25
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; C08G18/28; C08G18/2805; C08G18/2815; C08G18/283; C08G18/30; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3851; C08G18/40; C08G18/48; C08G18/4833; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005; C08G2110/0058; C08G2115/00; C08G2115/02; Y; Y10; Y10S; Y10S521/00; Y10S521/902; Y10S521/903; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249987; Y10T428/24999; Y10T428/249991; Y10T428/31504; Y10T428/31547; Y10T428/31551; Y10T428/31554
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
86 words
A polyisocyanurate coating composition, which composition is prepared by reacting 100 parts by weight of a methylene diisocyanate, having an average functionality of less than about 2.4, with from about 25 to 50 parts by weight of a di or triethylene glycol, and with from about 25 to 150 parts by weight of a C 1 -C 3 alkoxy poly C 2 -C 3 alkylene glycol, the reaction carried out in the presence of a trimerization catalyst and in the substantial absence of a blowing agent.
Claim 2
Dependent Claim
86 words
A polyisocyanurate coating composition, which composition is prepared by reacting 100 parts by weight of a methylene diisocyanate, having an average functionality of less than about 2.4, with from about 25 to 50 parts by weight of a di or triethylene glycol, and with from about 25 to 150 parts by weight of a C 1 -C 3 alkoxy poly C 2 -C 3 alkylene glycol, the reaction carried out in the presence of a trimerization catalyst and in the substantial absence of a blowing agent.
Claim 3
Dependent Claim
20 words
The coating composition of claim 1 wherein the methylene diisocyanate has an average functionality of from about 1.7 to 2.4.
Claim 4
Dependent Claim
15 words
The coating composition of claim 1 wherein the alkylene glycol comprises a methoxy polyethylene glycol.
Claim 5
Dependent Claim
22 words
The coating composition of claim 3 wherein the methoxy polyethylene glycol has an average molecular weight of from about 275 to 600.
Claim 6
Dependent Claim
48 words
The coating composition of claim 1 wherein the di or tri glycol and the alkoxy polyalkylene glycol are present in a ratio of from about 75 to 100 parts by weight of the alkoxy polyalkylene glycol to about 25 parts by weight of the di or triethylene glycol.
Claim 7
Dependent Claim
24 words
The coating composition of claim 5 wherein the di or triethylene glycol comprises diethylene glycol and the alkoxy polyalkylene glycol comprises methoxy polyethylene glycol.
Claim 8
Dependent Claim
14 words
The coating composition of claim 1 wherein the trimerization catalyst comprises a potassium salt.
Claim 9
Dependent Claim
15 words
The coating composition of claim 7 wherein the trimerization catalyst consists essentially of potassium octoate.
Claim 10
Dependent Claim
13 words
The coating of claim 7 which includes a tetravalent tin catalyst or diethanolamine.
Claim 11
Dependent Claim
34 words
The coating composition of claim 1 which includes reacting with the methylene diisocyanate up to about 100 parts by weight of a polyether triol having a molecular weight ranging from about 1000 to 6500.
Claim 12
Dependent Claim
17 words
The coating composition of claim 1 wherein the polyether triol comprises an ethylene oxide capped polypropylene oxide.
Claim 13
Dependent Claim
27 words
The coating composition of claim 11 wherein the ethylene oxide capped polypropylene oxide triol ranges in an amount of from about 25 to 75 parts by weight.
Claim 14
Dependent Claim
29 words
The coating composition of claim 1 which includes a small amount of water, to provide a foam-coating composition having a density greater than about 20 pounds per cubic foot.
Claim 15
Dependent Claim
41 words
The coating composition of claim 1 wherein the ratio of the di or triethylene glycol to the alkoxy polyalkylene glycol is about 50 parts by weight of a diethylene glycol to about 50 parts by weight of a methoxy polyethylene glycol.
Claim 16
Dependent Claim
6 words
The cured composition of claim 1.
Claim 17
Dependent Claim
17 words
A substrate material which contains thereon a coating layer formed from the coating composition of claim 1.
Claim 18
Dependent Claim
23 words
A substrate material which comprises a rigid foam material and contains thereon a coating layer formed from the coating composition of claim 1.
Claim 19
Dependent Claim
26 words
A substrate material which comprises a rigid-board insulating foam composition which contains, on one surface thereof, a solid coating layer of the composition of claim 1.
Claim 20
Dependent Claim
27 words
A substrate material which comprises a rigid, polyisocyanurate, insulating foam board having one surface coated with a solid coating layer of the coating composition of claim 1.
Claim 21
Dependent Claim
54 words
A coated, rigid, insulating, foam-board article which comprises a rigid, insulating, substantially closed-cell foam-board composition suitable for use for insulating purposes, a thin aluminum-foil material bonded to one surface of the foam composition, and a solid coating layer of the polyisocyanurate coating composition of claim 1 on the opposite surface of the foam composition.
Claim 22
Dependent Claim
78 words
A polyisocyanurate coating composition, which composition is prepared by reacting 100 parts by weight of a methylene diisocyanate, having an average functionality of from about 1.7 to 2.4, with from about 25 to 75 parts by weight of diethylene glycol, and from about 25 to 75 parts by weight of a methoxy polyethylene glycol, the reaction carried out in the presence of a catalytic amount of a potassium trimerization catalyst and in the absence of a blowing agent.
Claim 23
Dependent Claim
78 words
A polyisocyanurate coating composition, which composition is prepared by reacting 100 parts by weight of a methylene diisocyanate, having an average functionality of from about 1.7 to 2.4, with from about 25 to 75 parts by weight of diethylene glycol, and from about 25 to 75 parts by weight of a methoxy polyethylene glycol, the reaction carried out in the presence of a catalytic amount of a potassium trimerization catalyst and in the absence of a blowing agent.
Claim 24
Dependent Claim
34 words
The coating composition of claim 21 which includes from about 25 to 75 parts by weight of an ethylene oxide capped polypropylene oxide triol having a molecular weight of from about 1000 to 6500.
Claim 25
Dependent Claim
31 words
The coating composition of claim 21 wherein the catalyst comprises potassium octoate, with from about 0.05 to 4 parts per 100 parts of the methylene diisocyanate of a tetravalent tin catalyst.
Claim 26
Dependent Claim
9 words
The cured, solid, polyisocyanurate coating composition of claim 21.
Claim 27
Dependent Claim
55 words
The coating composition of claim 1 which is prepared by including a first step of reacting a first mixture of 10 to 40 parts by weight of methoxy ethylene glycol and 100 parts by weight of the methylene diisocyanate and, thereafter, with a second mixture containing methoxy ethylene glycol, diethylene glycol and the trimerization catalyst.
Claim 28
Dependent Claim
46 words
The coating composition of claim 1 which comprises generally equal volumes of a first mixture composition of methylene diisocyanate and C 1 -C 3 alkoxy poly C 2 -C 3 alkylene glycol and a second mixture composition comprising diethylene or triethylene glycol and the trimerization catalyst.
Claim 29
Dependent Claim
30 words
The coating composition of claim 26 wherein the C 1 -C 3 alkoxy poly C 2 -C 3 alkylene glycol is present in both the first and second mixture compositions.
Claim 30
Dependent Claim
50 words
The coating composition of claim 26 wherein the first mixture composition comprises a methylene diisocyanate having an average functionality of about 1.7 to 2.4 and methoxy polyethylene glycol and the second mixture composition comprises methoxy polyethylene glycol, diethylene or triethylene glycol, and a potassium and a tetravalent tin trimerization catalyst.
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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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |