US4550059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a tintable abrasion-resistant coating on a substrate and article produced thereby
Assignee: Gentex Optics Inc
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Filing: 1983-08-04
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Granted: 1985-10-29
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Expires: 2003-08-04
Abstract
Abstract A tintable abrasion-resistant coating is formed on a substrate such as a lens or other optical article by applying a radiation-curable coating to the surface of the substrate and partially curing the applied coating by exposure to radiation so as to produce from about 20% to about 80% cross-linking in the coating. The exposure to radiation is terminated when the coating is partially cured to provide a coated article which is tintable but capable of being handled for shipping to a retail finisher or the like for tinting and then completion of the cure by exposure to radiation. Preferably, a radiation-curable coating comprising a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group is applied to a substrate comprising polycarbonate, polyallyldiglycolcarbonate, or acrylic polymer.
Inventors
- 👤 Jeffrey L. Dalton
- 👤 Philip M. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:23
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D3/00; B05D3/02; B05D3/0209; B05D3/06; B05D3/061; B05D3/065; B05D3/067; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
59 words
A method of forming a tintable abrasion-resistant coating on an optical substrate including the steps of applying a radiation-curable optically transparent abrasion-resistant coating to the surface of said substrate, partially curing said applied coating by exposure to radiation, and terminating said exposure to radiation while said coating is in such a stage of partial cure that it remains tintable.
Claim 2
Independent Claim
59 words
A method of forming a tintable abrasion-resistant coating on an optical substrate including the steps of applying a radiation-curable optically transparent abrasion-resistant coating to the surface of said substrate, partially curing said applied coating by exposure to radiation, and terminating said exposure to radiation while said coating is in such a stage of partial cure that it remains tintable.
Claim 3
Dependent Claim
28 words
A method as in claim 1 in which said partial curing step is performed so as to produce from about 20% to about 80% cross-linking in said coating.
Claim 4
Dependent Claim
22 words
A method as in claim 1 in which said partial curing step comprises the step of exposing said coating to ultraviolet radiation.
Claim 5
Dependent Claim
22 words
A method as in claim 1 in which said substrate is selected from the group consisting of polycarbonate, polyallyldiglycolcarbonate, and acrylic polymer.
Claim 6
Dependent Claim
24 words
A method as in claim 1 in which said coating includes a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group.
Claim 7
Dependent Claim
35 words
A method as in claim 1 in which said coating includes a solvent selected from the group consisting of isopropanol, n-butanol, diacetone alcohol, methyl ethyl ketone, toluene, methanol, acetone, p-xylene, ethyl cellosolve, and mixtures thereof.
Claim 8
Dependent Claim
83 words
A method as in claim 1 in which said coating comprises (a) a monomer mixture consisting essentially of a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group and (b) a solvent selected from the group consisting of isopropanol, n-butanol, diacetone alcohol, methyl ethyl ketone, toluene, methanol, acetone, p-xylene, ethyl cellosolve, and mixtures thereof in the proportion by weight of from about 5% to about 100% of said monomer mixture to from about 95% to about 0% of said solvent.
Claim 9
Dependent Claim
36 words
An article of manufacture comprising an optical substrate and a radiation-curable, optically transparent abrasion-resistant coating thereon partially cured by exposure to radiation, said coating being in such a stage of partial cure that it remains tintable.
Claim 10
Dependent Claim
36 words
An article of manufacture comprising an optical substrate and a radiation-curable, optically transparent abrasion-resistant coating thereon partially cured by exposure to radiation, said coating being in such a stage of partial cure that it remains tintable.
Claim 11
Dependent Claim
28 words
An article as in claim 8 in which said coating has been partially cured so as to produce from about 20% to about 80% cross-linking in said coating.
Claim 12
Dependent Claim
22 words
An article as in claim 8 in which said substrate is selected from the group consisting of polycarbonate, polyallyldiglycolcarbonate, and acrylic polymer.
Claim 13
Dependent Claim
28 words
An article as in claim 8 in which said coating comprises the reaction product of a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group.
Claim 14
Independent Claim
40 words
A method of forming a tinted abrasion-resistant coating on a substrate including the steps of applying a radiation-curable coating to the surface of said substrate, partially curing said applied coating by exposure to radiation, and tinting said partially cured coating.
Claim 15
Independent Claim
40 words
A method of forming a tinted abrasion-resistant coating on a substrate including the steps of applying a radiation-curable coating to the surface of said substrate, partially curing said applied coating by exposure to radiation, and tinting said partially cured coating.
Claim 16
Dependent Claim
22 words
A method as in claim 12 including the step of completing the cure of said tinted coating by further exposure to radiation.
Claim 17
Dependent Claim
28 words
A method as in claim 12 in which said partial curing step is performed so as to produce from about 20% to about 80% cross-linking in said coating.
Claim 18
Dependent Claim
22 words
A method as in claim 12 in which said partial curing step comprises the step of exposing said coating to ultraviolet radiation.
Claim 19
Dependent Claim
22 words
A method as in claim 12 in which said substrate is selected from the group consisting of polycarbonate, polyallyldiglycolcarbonate, and acrylic polymer.
Claim 20
Dependent Claim
24 words
A method as in claim 12 in which said coating includes a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group.
Claim 21
Dependent Claim
35 words
A method as in claim 12 in which said coating includes a solvent selected from the group consisting of isopropanol, n-butanol, diacetone alcohol, methyl ethyl ketone, toluene, methanol, acetone, p-xylene, ethyl cellosolve, and mixtures thereof.
Claim 22
Dependent Claim
85 words
A method as in claim 12 in which said coating comprises (a) a monomer mixture consisting essentially of a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group and (b) a solvent selected from the group consisting of isopropanol, n-butanol, diacetone alcohol, methyl ethyl ketone, toluene, methanol, acetone, p-xylene, ethyl cellosolve and mixtures thereof in the proportion by weight of from about 5% to about 100% of said monomer mixture to from about 95% to about 0% by weight of said solvent.
Claim 23
Dependent Claim
11 words
An article produced in accordance with the method of claim 12.
Claim 24
Independent Claim
65 words
A method of producing a handleable and tintable abrasion-resistant optical article including the steps of coating an optical body with an optically transparent material adapted to form an abrasion-resistant coating and exposing said coated body to material-curing radiation for a period of time which is sufficiently short to maintain said material in a tintable state but which is sufficiently long to render said material non-tacky.
Claim 25
Independent Claim
65 words
A method of producing a handleable and tintable abrasion-resistant optical article including the steps of coating an optical body with an optically transparent material adapted to form an abrasion-resistant coating and exposing said coated body to material-curing radiation for a period of time which is sufficiently short to maintain said material in a tintable state but which is sufficiently long to render said material non-tacky.
Claim 26
Independent Claim
34 words
A method of producing a tinted optical article including the steps of providing an optical substrate having a radiation-curable abrasion-resistant coating thereon partially cured by exposure to radiation and tinting said partially cured coating.
Claim 27
Independent Claim
34 words
A method of producing a tinted optical article including the steps of providing an optical substrate having a radiation-curable abrasion-resistant coating thereon partially cured by exposure to radiation and tinting said partially cured coating.
Claim 28
Dependent Claim
28 words
A method as in claim 22 in which said coating has been partially cured so as to produce from about 20% to about 80% cross-linking in said coating.
Claim 29
Dependent Claim
22 words
A method as in claim 22 in which said substrate is selected from the group consisting of polycarbonate, polyallyldiglycolcarbonate, and acrylic polymer.
Claim 30
Dependent Claim
28 words
A method as in claim 22 in which said coating comprises the reaction product of a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group.
Claim 31
Dependent Claim
22 words
A method as in claim 22 including the step of completing the cure of said tinted coating by further exposure to radiation.
Claim 32
Dependent Claim
20 words
A method as in claim 12 in which said substrate is an optical substrate and said coating is optically transparent.
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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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |