US4264752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-curable acrylated urethane polycarbonate compositions
Assignee: Union Carbide Corp
•
Filing: 1979-08-08
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Granted: 1981-04-28
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Expires: 1999-08-08
Abstract
Abstract Acrylated urethane polycarbonate compositions are formed from the reaction of a polycarbonate polyol, a polyisocyanate and a hydroxy-containing acrylate monomer. These compositions are useful as components of improved radiation-curable compositions.
Inventors
- 👤 Stuart L. Watson, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/44; C08G18/67; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
Acrylated urethane polycarbonates having the general structural formula: ##STR7## wherein O is oxygen and C is carbon; X is acryloyloxy; R is alkylene of from 1 to 20 carbon atoms; Q is the residue of an organic polyisocyanate after it has reacted with the reactive hydroxyl groups of the other reactants and the isocyanato groups have been converted to urethane linkages, R' is the residue of an alkylene diol or polyoxyalkylene diol having 2 to 10 carbon atoms in the alkylene group and a molecular weight of from 28 to 230; y is the number of carbonate groups of the polycarbonate polyol reactant; and the sum of m and n is equal to the total reactive equivalents of the Q groups.
Claim 2
Dependent Claim
121 words
Acrylated urethane polycarbonates having the general structural formula: ##STR7## wherein O is oxygen and C is carbon; X is acryloyloxy; R is alkylene of from 1 to 20 carbon atoms; Q is the residue of an organic polyisocyanate after it has reacted with the reactive hydroxyl groups of the other reactants and the isocyanato groups have been converted to urethane linkages, R' is the residue of an alkylene diol or polyoxyalkylene diol having 2 to 10 carbon atoms in the alkylene group and a molecular weight of from 28 to 230; y is the number of carbonate groups of the polycarbonate polyol reactant; and the sum of m and n is equal to the total reactive equivalents of the Q groups.
Claim 3
Dependent Claim
16 words
An acrylated urethane polycarbonate as claimed in claim 1 wherein said organic polyisocyanate is a diisocyanate.
Claim 4
Dependent Claim
28 words
An acrylated urethane polycarbonate as claimed in claim 1 wherein R is ethylene, Q is the residue of isophorone diisocyanate and R' is the residue of 1,4 butanediol.
Claim 5
Dependent Claim
28 words
An acrylated urethane polycarbonate as claimed in claim 1 wherein R is ethylene, Q is the residue of isophorone diisocyanate and R' is the residue of diethylene glycol.
References Cited (Backward Citations)
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US3764457A
Cited
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Cited
US4150211A
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |