Patent US5162390A successfully refreshed from Google Patents.
US5162390A
Expired / Lapsed
US
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UV curable coating compositions, abrasion resistant UV stabilized thermoplastic composites and method
Assignee: General Electric Co
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Filing: 1991-08-07
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Granted: 1992-11-10
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Expires: 2011-08-07
Abstract
Abstract Organophosphorus compounds capable of being activated with light at from 360 nm to about 410 nm, such as, an acylphosphine oxide, have been found useful as photoinitiators for effecting the cure of various UV curable coating compositions, such as a UV curable organic material in the presence of up to 20% by weight of a UV absorber. UV stabilized thermoplastic composites of films, sheets, or laminates having thickness of up to an inch or more with improved optical clarity also are provided.
Inventors
- 👤 Mark G. Tilley
- 👤 Peter M. Miranda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:00
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/10; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; C09D183/04; C09D4/00; C09D7/00; C09D7/40; C09D7/48; C09D7/60; C09D7/63; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5397; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A UV curable coating composition consisting essentially of by weight (A) 100 parts of a mixture of a UV curable polyfunctional acrylate, and a UV curable hydrolysis product of silylacrylate and arqueous colloidal silica, (B) 0.3 to 10 parts of an acylphosphine oxide which is effective for polymerizing the UV curable organic coating composition with light having a wavelength of from about 360 nm to about 410 nm and (C) a UV absorber, where the UV absorber is used in the UV curable coating composition in an amount which is sufficient to provide a weight ratio of acylphosphine oxide to UV absorber having a value of about 0.04 to about 0.3.
Claim 2
Dependent Claim
111 words
A UV curable coating composition consisting essentially of by weight (A) 100 parts of a mixture of a UV curable polyfunctional acrylate, and a UV curable hydrolysis product of silylacrylate and arqueous colloidal silica, (B) 0.3 to 10 parts of an acylphosphine oxide which is effective for polymerizing the UV curable organic coating composition with light having a wavelength of from about 360 nm to about 410 nm and (C) a UV absorber, where the UV absorber is used in the UV curable coating composition in an amount which is sufficient to provide a weight ratio of acylphosphine oxide to UV absorber having a value of about 0.04 to about 0.3.
Claim 3
Dependent Claim
16 words
A UV curable coating composition in accordance with claim 1, where the acylphosphineoxide is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.
Claim 4
Dependent Claim
16 words
A UV curable coating composition in accordance with claim 1, where the UV absorber is 2-(2-hydroxy-5-octylphenylbenzotriazole.
Claim 5
Dependent Claim
16 words
A UV curable coating composition in accordance with claim 1, where the UV absorber is 2-hydroxy-4-n-octoxybenzophenone.
Claim 6
Dependent Claim
17 words
A UV curable coating composition in accordance with claim 1 where the polyfunctional acrylate is hexanediol diacrylate.
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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) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |