US4507188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet curable formulations containing urethane acrylate monomers
Assignee: Northrop Grumman Innovation Systems LLC
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Filing: 1983-12-21
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Granted: 1985-03-26
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Expires: 2003-12-21
Abstract
Abstract A coating composition comprising a radiation curable oligomer and a reactive diluent having the formula: ##STR1## wherein R' is a monovalent aromatic or alkyl radical including from 4 to about 20 carbon atoms, R 2 is a divalent alkyl radical including from about 2 to about 4 carbon atoms, and R 3 is hydrogen or methyl. Addition of the reactive diluent not only reduces the viscosity of the uncured composition to an acceptable value for use as a coating but also surprisingly increases the elongation of the cured coating without reducing its tensile strength. Superior coatings for floor tiles, flooring, and other applications are thus provided.
Inventors
- 👤 Yuan C. Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:22
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238; C08F; C08F299/00; C08F299/02; C08F299/022; C08F299/024; C08G18/67; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A radiation-curable coating composition, comprising: A. from about 25% to about 95% by weight of an oligomeric polyethylene adipate linked to terminal acrylate moieties by toluene urethane linkages, and B. from about 5% to about 75% by weight of a reactive diluent having the formula: ##STR6## wherein R' is a monovalent aromatic or alkyl radical including from 4 to about 20 carbon atoms, R 2 is a divalent alkyl radical including from about 2 to about 4 carbon atoms, and R 3 is hydrogen or methyl.
Claim 2
Dependent Claim
86 words
A radiation-curable coating composition, comprising: A. from about 25% to about 95% by weight of an oligomeric polyethylene adipate linked to terminal acrylate moieties by toluene urethane linkages, and B. from about 5% to about 75% by weight of a reactive diluent having the formula: ##STR6## wherein R' is a monovalent aromatic or alkyl radical including from 4 to about 20 carbon atoms, R 2 is a divalent alkyl radical including from about 2 to about 4 carbon atoms, and R 3 is hydrogen or methyl.
Claim 3
Dependent Claim
38 words
The invention of claim 1, wherein R' is selected from the group consisting of isobutyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, and phenyl radicals and mixtures thereof.
Claim 4
Dependent Claim
24 words
The invention of claim 1, wherein R' is selected from the group consisting of n-butyl, n-octyl, n-dodecyl, n-octadecyl, and phenyl radicals and mixtures thereof.
Claim 5
Dependent Claim
18 words
The invention of claim 1, wherein R' is selected from the group consisting of n-butyl and phenyl radicals.
Claim 6
Dependent Claim
19 words
The invention of claim 1, wherein R 2 is selected from the group consisting of ethylene and propylene radicals.
Claim 7
Dependent Claim
12 words
The invention of claim 1, wherein R 2 is an ethylene radical.
Claim 8
Dependent Claim
28 words
The invention of claim 1, comprising from about 90% to about 50% of said oligomeric polyethylene adipate and from about 50% to about 10% of said reactive diluent.
Claim 9
Dependent Claim
28 words
The invention of claim 1, comprising from about 60% to about 83% of said oligomeric polyethylene adipate and from about 71% to about 40% of said reactive diluent.
Claim 10
Independent Claim
85 words
A method for reducing the viscosity of a radiation-curable coating material, comprising the steps of: A. providing a radiation-curable coating oligomer which is usually highly viscous; and B. adding to said coating oligomer a viscosity-reducing amount of a reactive diluent having the formula: ##STR7## wherein R' is a monovalent aromatic or alkyl radical including from about 4 to about 20 carbon atoms, R 2 is a divalent alkyl radical including from about 2 to about 4 carbon atoms, and R 3 is hydrogen or methyl.
Claim 11
Independent Claim
85 words
A method for reducing the viscosity of a radiation-curable coating material, comprising the steps of: A. providing a radiation-curable coating oligomer which is usually highly viscous; and B. adding to said coating oligomer a viscosity-reducing amount of a reactive diluent having the formula: ##STR7## wherein R' is a monovalent aromatic or alkyl radical including from about 4 to about 20 carbon atoms, R 2 is a divalent alkyl radical including from about 2 to about 4 carbon atoms, and R 3 is hydrogen or methyl.
Claim 12
Dependent Claim
38 words
The invention of claim 9, wherein R' is selected from the group consisting of isobutyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, and phenyl radicals and mixtures thereof.
Claim 13
Dependent Claim
24 words
The invention of claim 9, wherein R' is selected from the group consisting of n-butyl, n-octyl, n-dodecyl, n-octadecyl, and phenyl radicals and mixtures thereof.
Claim 14
Dependent Claim
18 words
The invention of claim 9, wherein R' is selected from the group consisting of n-butyl and phenyl radicals.
Claim 15
Dependent Claim
19 words
The invention of claim 9, wherein R 2 is selected from the group consisting of ethylene and propylene radicals.
Claim 16
Dependent Claim
12 words
The invention of claim 9, wherein R 2 is an ethylene radical.
Claim 17
Dependent Claim
29 words
The invention of claim 9, comprising from about 90% to about 50% of said oligomeric polyethylene adipate material, and from about 50% to about 10% of said reactive diluent.
Claim 18
Dependent Claim
29 words
The invention of claim 9, comprising from about 60% to about 83% of said oligomeric polyethylene adipate material, and from about 17% to about 40% of said reactive diluent.
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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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |