US4198465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable acrylic coated polycarbonate articles
Assignee: General Electric Co
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Filing: 1978-11-01
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Granted: 1980-04-15
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Expires: 1998-11-01
Abstract
Abstract A polycarbonate article having a durably adherent mar, abrasion and chemical resistant UV cured coating on the surface thereof comprised of the photoreaction products of (i) certain polyfunctional acrylate monomers and (ii) resorcinol monobenzoate.
Inventors
- 👤 James E. Moore
- 👤 Ona V. Orkin
- 👤 Siegfried H. Schroeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:37
CPC Classifications
C; C09; C09D; C09D4/00; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10S428/918; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31507; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
104 words
A shaped article having improved abrasion resistance comprising a polycarbonate substrate coated with an ultraviolet light curable coating composition consisting essentially of: (i) a photoinitiator; (ii) at least one ultraviolet light curable cross-linkable polyfunctional acrylate monomer represented by the general formula ##STR23## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, n valent substituted aliphatic hydrocarbon residue, n valent aliphatic hydrocarbon residue containing at least one other linkage, and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage; and (iii) resorcinol monobenzoate.
Claim 2
Dependent Claim
104 words
A shaped article having improved abrasion resistance comprising a polycarbonate substrate coated with an ultraviolet light curable coating composition consisting essentially of: (i) a photoinitiator; (ii) at least one ultraviolet light curable cross-linkable polyfunctional acrylate monomer represented by the general formula ##STR23## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, n valent substituted aliphatic hydrocarbon residue, n valent aliphatic hydrocarbon residue containing at least one other linkage, and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage; and (iii) resorcinol monobenzoate.
Claim 3
Dependent Claim
33 words
The article of claim 1 wherein said coating composition contains an amount of a photoinitiator effective to initiate the photocure of said ultraviolet light curable polyfunctional acrylate monomer upon exposure to ultraviolet light.
Claim 4
Dependent Claim
27 words
The article of claim 2 wherein said n valent aliphatic hydrocarbon residue and n valent substituted aliphatic hydrocarbon residue contain from 1 to about 20 carbon atoms.
Claim 5
Dependent Claim
39 words
The article of claim 2 wherein said n valent aliphatic hydrocarbon residue containing at least one ether linkage and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage contain from 2 to about 20 carbon atoms.
Claim 6
Dependent Claim
38 words
The article of claim 4 wherein said n valent aliphatic hydrocarbon residue containing at least one ether linkage and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage contain from 1 to 5 ether linkages.
Claim 7
Dependent Claim
12 words
The article of claim 3 wherein said acrylate monomer is diethyleneglycol diacrylate.
Claim 8
Dependent Claim
19 words
The article of claim 1 wherein said coating composition contains a mixture of hexanediol diacrylate and trimethylolpropane triacrylate monomer.
Claim 9
Dependent Claim
19 words
The article of claim 1 wherein said coating composition contains a mixture of hexanediol diacrylate and pentaerythritol triacrylate monomers.
Claim 10
Dependent Claim
19 words
The article of claim 1 wherein said coating composition contains a mixture of diethyleneglycol diacrylate and pentaerythritol triacrylate monomers.
Claim 11
Dependent Claim
101 words
A shaped article having improved abrasion resistance comprising a polycarbonate substrate coated with an ultraviolet light cured thermoset coating consisting essentially of the photoreaction products of: (i) at least one polyfunctional acrylate monomer represented by the general formula ##STR24## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, n valent substituted aliphatic hydrocarbon residue, n valent aliphatic hydrocarbon residue containing at least one ether linkage, and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage; and (ii) resorcinol monobenzoate.
Claim 12
Dependent Claim
101 words
A shaped article having improved abrasion resistance comprising a polycarbonate substrate coated with an ultraviolet light cured thermoset coating consisting essentially of the photoreaction products of: (i) at least one polyfunctional acrylate monomer represented by the general formula ##STR24## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, n valent substituted aliphatic hydrocarbon residue, n valent aliphatic hydrocarbon residue containing at least one ether linkage, and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage; and (ii) resorcinol monobenzoate.
Claim 13
Dependent Claim
27 words
The article of claim 10 wherein said n valent aliphatic hydrocarbon residue and n valent substituted aliphatic hydrocarbon residue contain from 1 to about 20 carbon atoms.
Claim 14
Dependent Claim
39 words
The article of claim 10 wherein said n valent aliphatic hydrocarbon residue containing at least one ether linkage and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage contain from 2 to about 20 carbon atoms.
Claim 15
Dependent Claim
38 words
The article of claim 12 wherein said n valent aliphatic hydrocarbon residue containing at least one ether linkage and n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage contain from 1 to 5 ether linkages.
Claim 16
Dependent Claim
12 words
The article of claim 11 wherein said acrylate monomer is diethyleneglycol diacrylate.
Claim 17
Dependent Claim
22 words
The article of claim 10 wherein said coating contains the photoreaction products of a mixture of hexanediol diacrylate and trimethylolpropane triacrylate monomers.
Claim 18
Dependent Claim
22 words
The article of claim 10 wherein said coating contains the photoreaction products of a mixture of hexanediol diacrylate and pentaerythritol triacrylate monomers.
Claim 19
Dependent Claim
22 words
The article of claim 10 wherein said coating contains the photoreaction products of a mixture of diethyleneglycol diacrylate and pentaerythritol triacrylate monomers.
Claim 20
Dependent Claim
15 words
The article of claim 10 wherein said article is a lens for a vehicular headlamp.
Claim 21
Independent Claim
156 words
A method for providing a mar resistant tenaciously and durably adhered hard coating onto the surface of a solid substrate comprising: (i) applying a thin layer of a coating composition onto the surface of said solid substrate, said coating composition consisting essentially of (a) at least one polyfunctional acrylate monomer represented by the general formula ##STR25## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, a n valent substituted aliphatic hydrocarbon residue, a n valent aliphatic hydrocarbon residue containing at least one ether linkage, and a n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage, (b) a photoinitiator, and (c) resorcinol monobenzoate; and (ii) exposing said coated substrate under an inert atmosphere to ultraviolet light for a period of time sufficient to polymerize and crosslink said polyfunctional acrylate monomers, thereby forming said hard coating.
Claim 22
Independent Claim
156 words
A method for providing a mar resistant tenaciously and durably adhered hard coating onto the surface of a solid substrate comprising: (i) applying a thin layer of a coating composition onto the surface of said solid substrate, said coating composition consisting essentially of (a) at least one polyfunctional acrylate monomer represented by the general formula ##STR25## wherein n is an integer having a value of from 2 to 4, and R is selected from the group consisting of a n valent aliphatic hydrocarbon residue, a n valent substituted aliphatic hydrocarbon residue, a n valent aliphatic hydrocarbon residue containing at least one ether linkage, and a n valent substituted aliphatic hydrocarbon residue containing at least one ether linkage, (b) a photoinitiator, and (c) resorcinol monobenzoate; and (ii) exposing said coated substrate under an inert atmosphere to ultraviolet light for a period of time sufficient to polymerize and crosslink said polyfunctional acrylate monomers, thereby forming said hard coating.
Claim 23
Dependent Claim
12 words
The process of claim 19 wherein said inert atmosphere is nitrogen atmosphere.
Claim 24
Dependent Claim
16 words
The article of claim 1 wherein said coating composition further contains an ultraviolet light absorbent compound.
Claim 25
Dependent Claim
15 words
The article of claim 10 wherein said coating further contains an ultraviolet light absorbent compound.
Claim 26
Dependent Claim
16 words
The process of claim 19 wherein said coating composition further contains an ultraviolet light absorbent compound.
Claim 27
Dependent Claim
38 words
The article of claim 3 wherein said n valent aliphatic hydrocarbon residue is a n valent saturated aliphatic hydrocarbon residue and wherein said n valent substituted aliphatic hydrocarbon residue is a n valent substituted saturated aliphatic hydrocarbon residue.
Claim 28
Dependent Claim
24 words
The article of claim 24 wherein said n valent substituted saturated aliphatic hydrocarbon residue is a n valent hydroxyl substituted saturated aliphatic hydrocarbon residue.
Claim 29
Dependent Claim
66 words
The article of claim 5 wherein said n valent aliphatic hydrocarbon residue containing from 1 to 5 ether linkages is a n valent saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages and wherein said n valent substituted aliphatic hydrocarbon residue containing from 1 to 5 ether linkages is a n valent substituted saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages.
Claim 30
Dependent Claim
38 words
The article of claim 26 wherein said n valent substituted saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages is a n valent hydroxyl substituted saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages.
Claim 31
Dependent Claim
38 words
The article of claim 11 wherein said n valent aliphatic hydrocarbon residue is a n valent saturated aliphatic hydrocarbon residue and wherein said n valent substituted aliphatic hydrocarbon residue is a n valent substituted saturated aliphatic hydrocarbon residue.
Claim 32
Dependent Claim
24 words
The article of claim 28 wherein said n valent substituted saturated aliphatic hydrocarbon residue is a n valent hydroxyl substituted saturated aliphatic hydrocarbon residue.
Claim 33
Dependent Claim
66 words
The article of claim 13 wherein said n valent aliphatic hydrocarbon residue containing from 1 to 5 ether linkages is a n valent saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages and wherein said n valent substituted aliphatic hydrocarbon residue containing from 1 to 5 ether linkages is a n valent substituted saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages.
Claim 34
Dependent Claim
37 words
The article of claim 30 wherein said n valent substituted saturated aliphatic hydrocarbon residue containing 1 to 5 ether linkages is a n valent hydroxyl substituted saturated aliphatic hydrocarbon residue containing from 1 to 5 ether linkages.
Claim 35
Dependent Claim
11 words
The process of claim 19 wherein said solid substrate is polycarbonate.
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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) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |