Patent EP0399441A2 successfully refreshed from Google Patents.
EP0399441A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Anti-fog coating
Assignee: Panelgraphic Corp
•
Filing: 1990-05-21
•
Granted: —
•
Expires: 2010-05-21
Abstract
Abstract Curable coating compositions having more than 40% by weight of a hydrophilic monomer such as polyethylene glycol di(meth)acrylate together with 0.1 to 1.5% of a surfactant have excellent adhesion to a variety of substrates and when cured provide products having excellent anti-fog and anti-static properties.
Inventors
- 👤 Shih-Chung Chen
- 👤 Darryl W. Brixius
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/10; G02B1/18; C; C08; C08F; C08F222/00; C08F222/10; C08F222/1006; C08F222/102; C09; C09D; C09D4/00; C09K; C09K3/00; C09K3/18; G02B1/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
26 words
An anti-fog coating composition comprised by weight of more than 40% hydrophilic monomer and 0.1 to 1.5% based on the weight of monomer of a surfactant.
Claim 2
Dependent Claim
26 words
An anti-fog coating composition comprised by weight of more than 40% hydrophilic monomer and 0.1 to 1.5% based on the weight of monomer of a surfactant.
Claim 3
Dependent Claim
55 words
A coating composition according to claim 1 wherein the hydrophilic monomer is of the formula: in which R₁ is hydrogen or methyl, alkoxy has 2 or 3 carbon atoms, x is the integer 2 or 3, y is an integer of from 2 to 6, and n is an integer of from 4 to 40.
Claim 4
Dependent Claim
25 words
A coating composition according to claim 2 wherein the hydrophilic monomer is polyethylene glycol di(meth)acrylate, ethoxylated trimethylolpropane tri(meth)acrylate, or propoxylated trimethylolpropane tri(meth)acrylate, or mixtures thereof.
Claim 5
Dependent Claim
40 words
A coating composition according to claim 2 in which the hydrophilic monomer is of the formula: in which each of R₁ and R₂, independent of the other, is hydrogen or methyl, and n is an integer of 4 to 40.
Claim 6
Dependent Claim
18 words
A coating composition according to claim 1 containing up to 30% by weight of a multifunctional crosslinking monomer.
Claim 7
Dependent Claim
34 words
A coating composition according to claim 5 wherein the multifunctional crosslinking monomer is dipentaerythritol pentaacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, trimethylolpropane triacrylate, di-trimethylolpropane tetraacrylate, aliphatic urethane triacrylate, or a mixture of two or more thereof.
Claim 8
Dependent Claim
21 words
A coating composition according to claim 1 containing up to 30% by weight of a monofunctional or difunctional reactive diluent monomer.
Claim 9
Dependent Claim
49 words
A coating composition according to claim 7 wherein the monofunctional or difunctional reactive diluent monomer is N-vinylpyrrolidone, ethoxyethoxyethyl acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, hydroxypropyl acrylate, dimerized or oligomerized acrylic acid, 2-ethylhexyl acrylate, 1,6-hexanediol diacrylate, tripropylene glycol diacrylate, or a mixture of two or more thereof.
Claim 10
Dependent Claim
18 words
A coating composition according to claim 1 in which the surfactant is a fluorocarbon or a silicone-based material.
Claim 11
Dependent Claim
19 words
A coating composition according to claim 1 further comprising an effective amount of a photoinitiator or thermal polymerization initiator.
Claim 12
Dependent Claim
25 words
The method of imparting anti-fogging properties to a substrate which comprises applying the coating composition of claim 1 to the substrate and curing said coating.
Claim 13
Dependent Claim
19 words
The method of claim 11 wherein the coating composition comprises a photoinitiator and the coating is cured by irradiation.
Claim 14
Dependent Claim
18 words
A coated product having anti-fog properties comprising a substrate having cured thereon the coating composition of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.