US4124552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble, high solids urethane coating compositions
Assignee: Union Carbide Corp
•
Filing: 1976-05-26
•
Granted: 1978-11-07
•
Expires: 1996-05-26
Abstract
Abstract Water soluble, high solids urethane coating compositions comprising a polycaprolactone derivative, an aliphatic polyisocyanate and water. The polycaprolactone derivative is a water soluble, carboxyl modified oligomer addition reaction product mixture obtained by the reaction of polycaprolactone polyol and an anhydride of a polycarboxylic acid to produce a water insoluble adduct that on reaction with an inorganic or organic base produces the water soluble, carboxyl modified oligomer addition reaction product mixtures which are eminently suitable for the production of urethane coating compositions of this invention. The polycaprolactone polyol reacted with the polycarboxylic acid has an average at least two hydroxyl groups in the molecule, a hydroxyl number of from about 15 to about 600 and an average molecular weight of from about 290 to about 6,000. The carboxylic acid anhydride has at least one intramolecular carboxylic anhydride group.
Inventors
- 👤 Joseph V. Koleske
- 👤 Oliver W. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:46
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4266; C08G18/4269; C08G18/4277; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0823; Y; Y10; Y10S; Y10S528/00; Y10S528/904
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
A water based high solids urethane coating composition comprising: (a) an aliphatic polyisocyanate, (b) a water soluble, carboxyl modified oligomer addition reaction product mixture of the reaction of a polycaprolactone polyol and an intramolecular anhydride of a polycarboxylic acid, wherein said polycaprolactone polyol has at least two hydroxyl groups in the molecule, a hydroxyl number of from 15 to 600 and an average molecular weight of from 290 to about 6,000, and wherein said anhydride has at least one intramolecular carboxylic anhydride group and an inorganic or organic base in an amount sufficient to neutralize the free carboxyl groups of said-addition reaction product mixture, and (c) water.
Claim 2
Dependent Claim
107 words
A water based high solids urethane coating composition comprising: (a) an aliphatic polyisocyanate, (b) a water soluble, carboxyl modified oligomer addition reaction product mixture of the reaction of a polycaprolactone polyol and an intramolecular anhydride of a polycarboxylic acid, wherein said polycaprolactone polyol has at least two hydroxyl groups in the molecule, a hydroxyl number of from 15 to 600 and an average molecular weight of from 290 to about 6,000, and wherein said anhydride has at least one intramolecular carboxylic anhydride group and an inorganic or organic base in an amount sufficient to neutralize the free carboxyl groups of said-addition reaction product mixture, and (c) water.
Claim 3
Dependent Claim
35 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said polycaprolactone polyol has from 2 to 6 hydroxyl groups and said base is an organic amine.
Claim 4
Dependent Claim
35 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said polycaprolactone polyol has from 2 to 4 hydroxyl groups and said base is an organic amine.
Claim 5
Dependent Claim
37 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said polycaprolactone polyol has a molecular weight of from 290 to 3,000 and said base is an organic amine.
Claim 6
Dependent Claim
42 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said polycaprolactone polyol is a triol having an average molecular weight of from 290 to about 500 and said base is an organic amine.
Claim 7
Dependent Claim
34 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said polycaprolactone polyol is a mixture of polycaprolactone polyols and said base is an organic amine.
Claim 8
Dependent Claim
30 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said anhydride is phthalic anhydride and said base is an organic amine.
Claim 9
Dependent Claim
22 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said base is triethylamine.
Claim 10
Dependent Claim
23 words
A water based high solids urethane coating composition as claimed in claim 1, wherein in said component (b) said base is N,N-dimethyl ethanolamine.
Claim 11
Dependent Claim
21 words
A water based high solids urethane coating composition as claimed in claim 1 wherein said component (a) is 4,4'-methylene bis(cyclohexyl isocyanate).
Claim 12
Dependent Claim
26 words
A water based high solids urethane coating composition as claimed in claim 1 wherein said component (a) is the triisocyanate produced from hexamethylene diisocyanate and water.
Claim 13
Dependent Claim
59 words
A water based high solids urethane coating composition as claimed in claim 1 wherein said component (a) is 4,4'-methylene bis(cyclohexyl isocyanate), said component (b) is the adduct of a mixture of a polycaprolactone triol having an average molecular weight of 540 and a polycaprolactone triol having an average molecular weight of 300 and phthalic anhydride neutralized with N,N-dimethyl ethanolamine.
References Cited (Backward Citations)
US3169945A
Cited
US3551475A
Cited
US3553249A
Cited
US3752778A
Cited
US3759873A
Cited
US3882189A
Cited
US3897381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |