US5227240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
UV curable coating compositions, abrasion resistant UV stabilized thermoplastic composites and method
Assignee: General Electric Co
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Filing: 1992-06-22
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Granted: 1993-07-13
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Expires: 2012-06-22
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
2026-11-04 21:42
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: 8
Claim 1
Independent Claim
129 words
A method of coating a thermoplastic substrate comprising applying a UV curable coating composition onto the thermoplastic substrate and thereafter effecting the cure of the UV curable coating composition to produce a coated substrate having superior optical properties and weathering resistance, where the UV curable coating composition comprises by weight, (A) 100 parts of a UV curable organic material, a UV curable organosilicon material, or a mixture thereof, (B) 0.3 to 10 parts of an acylphosphorus compound 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 selected from the group consisting of an acylphosphine oxide, an acyl phosphonate and an acylphosphine sulfide, and (C) 0.5 to 20 parts of a UV absorber,
Claim 2
Independent Claim
129 words
A method of coating a thermoplastic substrate comprising applying a UV curable coating composition onto the thermoplastic substrate and thereafter effecting the cure of the UV curable coating composition to produce a coated substrate having superior optical properties and weathering resistance, where the UV curable coating composition comprises by weight, (A) 100 parts of a UV curable organic material, a UV curable organosilicon material, or a mixture thereof, (B) 0.3 to 10 parts of an acylphosphorus compound 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 selected from the group consisting of an acylphosphine oxide, an acyl phosphonate and an acylphosphine sulfide, and (C) 0.5 to 20 parts of a UV absorber,
Claim 3
Dependent Claim
15 words
A method in accordance with claim 1, where the thermoplastic substrate is a polycarbonate substrate.
Claim 4
Dependent Claim
31 words
A method in accordance with claim 1, where the UV curable coating composition is cured in contact with a rigid smooth surface to impart improved surface characteristics to the resulting article.
Claim 5
Independent Claim
142 words
A method of making a thermoplastic laminate having improved optical properties and weathering resistance comprising (a) cold casting a thermoplastic film with a UV curable coating compositing comprising by weight, (i) 100 parts of a UV curable organic material, a UV curable organosilicon material, or a mixture thereof, (ii) 0.3 to 10 parts of an acylphosphorus compound 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 selected from the class consisting of an acylphosphine oxide, an acyl phosphonate and an acylphosphine sulfide, and (iii) 0.5 to 20 parts of a UV absorber. (b) contacting the resulting coated thermoplastic film to a thermoplastic sheet treated with a UV curable organic adhesive and, (c) effecting the cure of the UV curable organic adhesive through the thermoplastic sheet.
Claim 6
Independent Claim
142 words
A method of making a thermoplastic laminate having improved optical properties and weathering resistance comprising (a) cold casting a thermoplastic film with a UV curable coating compositing comprising by weight, (i) 100 parts of a UV curable organic material, a UV curable organosilicon material, or a mixture thereof, (ii) 0.3 to 10 parts of an acylphosphorus compound 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 selected from the class consisting of an acylphosphine oxide, an acyl phosphonate and an acylphosphine sulfide, and (iii) 0.5 to 20 parts of a UV absorber. (b) contacting the resulting coated thermoplastic film to a thermoplastic sheet treated with a UV curable organic adhesive and, (c) effecting the cure of the UV curable organic adhesive through the thermoplastic sheet.
Claim 7
Dependent Claim
18 words
A thermoplastic composite having superior optical and weathering characteristics made in accordance with the method of claim 1.
Claim 8
Dependent Claim
18 words
A thermoplastic laminate having superior optical and weathering characteristics made in accordance with the method of claim 2.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |