US4080476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-fog coated optical substrates
Assignee: Datascope Investment Corp
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Filing: 1976-11-15
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Granted: 1978-03-21
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Expires: 1996-11-15
Abstract
Abstract The surface of optical substrate are coated with a polymerized monomer of the formula: <IMAGE> wherein R is selected from the group consisting of straight and branched alkane or alkylene of up to 10 carbon atoms, R' is selected from the group consisting of hydrogen and lower alkyl, and R'' is a monovalent cation. The polymer may be linear, an interpolymer, or a cross linked polymer. The polymeric coating is capable of permitting steam, fog, water vapor, etc. to permeate its matrix and render the coated optical substrate anti-fog when subjected to such conditions.
Inventors
- 👤 Richard A. Laskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00865; G; G02; G02B; G02B1/00; G02B1/10; G02B1/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31525; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31627; Y10T428/31645; Y10T428/31855; Y10T428/31909
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
62 words
An optical substrate having a surface thereof coated with a polymerized monomer of the formula: ##STR7## wherein R is selected from the group consisting of straight and branched alkane or alkylene of up to 10 carbon atoms, R' is selected from the group consisting of hydrogen and lower alkyl, and R" is a monovalent cation, the thus coated surface having anti-fog properties.
Claim 2
Dependent Claim
62 words
An optical substrate having a surface thereof coated with a polymerized monomer of the formula: ##STR7## wherein R is selected from the group consisting of straight and branched alkane or alkylene of up to 10 carbon atoms, R' is selected from the group consisting of hydrogen and lower alkyl, and R" is a monovalent cation, the thus coated surface having anti-fog properties.
Claim 3
Dependent Claim
16 words
Coated optical substrate according to claim 1 wherein the monomer is polymerized as a linear polymer.
Claim 4
Dependent Claim
19 words
Coated optical substrate according to claim 1 wherein the monomer is polymerized and cross-linked into a three dimensional polymer.
Claim 5
Dependent Claim
15 words
Coated optical substrate according to claim 3 wherein the cross-linking agent is a vinyl compound.
Claim 6
Dependent Claim
21 words
Coated optical substrate according to claim 3 wherein the cross-linking agent is a metal salt or complex of a polyvalent metal.
Claim 7
Dependent Claim
13 words
Coated optical substrate according to claim 5 wherein said polyvalent metal is chromium.
Claim 8
Dependent Claim
17 words
Coated optical substrate according to claim 1 wherein said monomer is polymerized and formed into an interpolymer.
Claim 9
Dependent Claim
17 words
Coated optical substrate according to claim 7 wherein the interpolymer is formed by means of an epoxide.
Claim 10
Dependent Claim
17 words
Coated optical substrate according to claim 7 wherein said interpolymer is formed by means of a melamine.
Claim 11
Dependent Claim
13 words
Coated optical substrate according to claim 1 wherein said optical substrate is glass.
Claim 12
Dependent Claim
23 words
Coated optical substrate according to claim 10 wherein a chromic complex is incorporated as coupling agent for improved adhesion to said glass substrate.
Claim 13
Dependent Claim
27 words
Coated optical substrate according to claim 10 wherein a vinyl silane or amino silane is incorporated as a coupling agent for better adhesion to said glass substrate.
Claim 14
Dependent Claim
14 words
Coated optical substrate according to claim 1 wherein said optical substrate is a plastic.
Claim 15
Dependent Claim
80 words
Method of producing an anti-fog optical substrate according to claim 1, which comprises applying to the surface of an optical substrate a polymerized monomer of the formula: ##STR8## wherein R is selected from the group consisting of straight and branched alkane or alkylene of up to 10 carbon atoms, R' is selected from the group consisting of hydrogen and lower alkyl, and R" is a monovalent cation, thus forming a polymer coating on the surface which renders the surface anti-fog.
Claim 16
Dependent Claim
14 words
Method according to claim 14 wherein said monomer is polymerized as a linear polymer.
Claim 17
Dependent Claim
19 words
Method according to claim 14 wherein said monomer is polymerized and is cross-linked by means of a cross-linking agent.
Claim 18
Dependent Claim
15 words
Method according to claim 14 wherein said monomer is polymerized and formed to an interpolymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |