US4336311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidity- and salt-resistant electronic component
Assignee: Exxelia Dearborn Inc
•
Filing: 1980-08-25
•
Granted: 1982-06-22
•
Expires: 2000-08-25
Abstract
Abstract An electronic component is coated with an ultraviolet light cured composition to make it humidity and salt water resistant. The composition contains a urethane, at least one acrylate, a wet adhesion monomer, a photoinitiator, and optionally a thixotropic agent.
Inventors
- 👤 Michael F. Lucey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:31
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/12; H05; H05K; H05K5/00; H05K5/0091; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
42 words
An electronic component coated with an ultraviolet light cured coating comprising a urethane, a triacrylate-tetraacrylate blend, a photoinitiator, and a wet adhesion monomer chosen from the group of allylic and acrylic ureides, said coating providing resistance to humidity and to salt water.
Claim 2
Dependent Claim
42 words
An electronic component coated with an ultraviolet light cured coating comprising a urethane, a triacrylate-tetraacrylate blend, a photoinitiator, and a wet adhesion monomer chosen from the group of allylic and acrylic ureides, said coating providing resistance to humidity and to salt water.
Claim 3
Dependent Claim
12 words
A component according to claim 1 wherein a thixotropic agent is present.
Claim 4
Dependent Claim
14 words
A component according to claim 2 wherein 0 to 4 wt% thixotrope is used.
Claim 5
Dependent Claim
35 words
A component according to claim 1 wherein said urethane is an aliphatic acrylic urethane, and at least one acrylate chosen from the group of mono-acrylates and diacrylates is present in addition to the triacrylate-tetraacrylate blend.
Claim 6
Dependent Claim
15 words
A component according to claim 4 wherein a monoacrylate and a triacrylate-tetraacrylate blend are used.
Claim 7
Dependent Claim
27 words
A component according to claim 5 wherein said urethane is an aliphatic acrylic urethane, said monoacrylate is ethoxyethoxyethyl monoacrylate, and said triacrylate-tetraacrylate blend is pentaerythritol triacrylate-tetraacrylate blend.
Claim 8
Dependent Claim
59 words
A component according to claim 6 wherein the amount of said urethane is 50 to 70 wt%, the amount of said monoacrylate is 0 to 33 wt%, the amount of said triacrylate-tetraacrylate blend is 5 to 8 wt%, the amount of said photoinitiator is about 1 wt% and the amount of said wet adhesion monomer is about 1 wt%.
Claim 9
Dependent Claim
15 words
A component according to claim 4 wherein a diacrylate and a triacrylate-tetraacrylate blend are used.
Claim 10
Dependent Claim
27 words
A component according to claim 8 wherein said urethane is an aliphatic acrylic urethane, said diacrylate is tetraethyleneglycol diacrylate, and said triacrylate-tetraacrylate blend is pentaerythritol triacrylate-tetraacrylate blend.
Claim 11
Dependent Claim
53 words
A component according to claim 9 wherein the amount of said urethane is 50 to 70 wt%, of said diacrylate is 5 to 40 wt%, of said triacrylate-tetraacrylate blend is 5 to 40 wt%, of said wet adhesion monomer is 0.5 to 3 wt%, and of said photoinitiator is 0.5 to 1 wt%.
Claim 12
Dependent Claim
43 words
A component according to claim 10 wherein the amount of said urethane is 70 wt%, of said diacrylate is 16.5 wt%, of said triacrylate-tetraacrylate blend is 10 wt%, of said wet adhesion monomer is 0.5 wt%, and of said photoinitiator is 1 wt%.
Claim 13
Dependent Claim
43 words
A component according to claim 10 wherein the amount of said urethane is 60 wt%, of said diacrylate is 6.5 wt%, of said triacrylate-tetraacrylate blend is 30 wt%, of said wet adhesion monomer is 0.5 wt%, and of said photoinitiator is 1 wt%.
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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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |