US4057431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenically polyurethane unsaturated composition
Assignee: Goodyear Tire and Rubber Co
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Filing: 1975-09-29
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Granted: 1977-11-08
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Expires: 1995-09-29
Abstract
Abstract A liquid ethylenically unsaturated polurethane composition having no free NCO and a viscosity of 2,000 to 10,000 centipoises at 24° C. dispersible in dilute caustic and capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30. Said composition may contain a diluent and a photosensitizing agent to adjust the viscosity and making the composition more readily utilizable for making printing plates.
Inventors
- 👤 Anthony F. Finelli
- 👤 Shirish Jasani
- 👤 Columbus Williams, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:40
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; C; C08; C08F; C08F299/00; C08F299/02; C08F299/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
A liquid ethylenically unsaturated polyetherurethane composition having no free NCO, being readily removable from a substrate by an alkaline water wash and being capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30, said composition being composed of a polyetherurethane consisting essentially of reaction products of polyether polyol having 2 to 3 hydroxyls, organic polyisocyanate and hydroxyl acrylate or methacrylate having an alkyl radical containing 2 to 3 carbon atoms and sufficient polyethylene polyol acrylate or methacrylate to give the composition a viscosity at 24° C. of 2,000 to 10,000 centipoises.
Claim 2
Dependent Claim
101 words
A liquid ethylenically unsaturated polyetherurethane composition having no free NCO, being readily removable from a substrate by an alkaline water wash and being capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30, said composition being composed of a polyetherurethane consisting essentially of reaction products of polyether polyol having 2 to 3 hydroxyls, organic polyisocyanate and hydroxyl acrylate or methacrylate having an alkyl radical containing 2 to 3 carbon atoms and sufficient polyethylene polyol acrylate or methacrylate to give the composition a viscosity at 24° C. of 2,000 to 10,000 centipoises.
Claim 3
Dependent Claim
72 words
The polyetherurethane composition of claim 1 containing 10 to 85 percent of an ethylenic monomer on the composition basis, said monomer being a hydroxy alkyl acrylate or methacrylate, with said alkyl radical containing 2 to 3 carbon atoms or being a hydroxyalkoxy acrylate or methacrylate where the alkoxy is a radical containing from 1 to 10 repeating groups of the formula (--C 2 H 4 O--) or (--C 3 H 6 O--).
Claim 4
Dependent Claim
10 words
The polyetherurethane composition of claim 1 which contains a photosensitizer.
Claim 5
Dependent Claim
45 words
The polyetherurethane composition of claim 3 containing sufficient diluent to give the composition a viscosity at 25° C. of 3,000 to 6,000 centipoises and the diluent is polyethylene either polyol acrylate or methacrylate where polyethylene ether polyol has a molecular weight of 200 to 6000.
Claim 6
Dependent Claim
15 words
The polyetherurethane composition of claim 3 wherein the photosensitizer is benzoin isobutyl ether or 2,2-diethoxyacetophenone.
Claim 7
Dependent Claim
38 words
The liquid composition of claim 1 wherein the polyetherurethane is the reaction product of isophorone diisocyanate and a polyether polyol of 2 to 3 hydroxyls having a carbon to oxygen ratio greater than 2.0 but less than 3.0.
Claim 8
Dependent Claim
51 words
The liquid composition of claim 1 wherein the polyetherurethane is the reaction product of isophorone diisocyanate polyether polyol of 2 to 3 hydroxyls having a carbon to oxygen ratio greater than 2.0 but less than 3.0 and hydroxyalkyl acrylate or methacrylate with the alkyl radical containing 2 to 3 carbon atoms.
Claim 9
Dependent Claim
39 words
The composition of claim 7 containing sufficient diluent to give a viscosity at 24° C. of 3000 to 6000 centipoises and the diluent is a diacrylate or dimethacrylate of a polyethylene ether polyol of 200 to 6000 molecular weight.
Claim 10
Dependent Claim
27 words
The composition of claim 8 containing sufficient photopolymerization initiator to effect polymerization of the composition having a Shore A hardness of at least 30 in two minutes.
Claim 11
Dependent Claim
26 words
The polyetherurethane composition of claim 1 wherein the polyetherurethane has a polyether portion having a carbon to oxygen ratio greater than 2.0 but less than 3.0.
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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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |