EP0322808A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Radiation curable compositions based on unsaturated polyesters and compounds having at least two vinyl ether groups
Assignee: PPG Industries Inc
•
Filing: 1988-12-23
•
Granted: —
•
Expires: 2008-12-23
Abstract
Abstract Disclosed is a liquid, radiation curable composition comprising: (A) an unsaturated polyester component containing an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof; and (B) a non-polymerized, cocurable vinyl ether component which may be separate from or structurally incorporated in the unsaturated polyester component, provided that the vinyl ether component contains an average of at least two vinyl ether groups per molecule of the vinyl ether component. Also disclosed is a method of coating comprising: applying to a substrate a film of a liquid, radiation curable composition of the invention, and curing the composition through its thickness to a tack-free state by exposing the film to ionizing radiation and/or ultraviolet light.
Inventors
- 👤 Charles Blair Friedlander
- 👤 David Arthur Diehl
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/025; C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C09; C09D; C09D4/00; C09D4/06
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
66 words
A liquid, radiation curable, composition comprising: an unsaturated polyester component comprising an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof; and a non-polymerized, cocurable vinyl ether component which may be separate from or structurally incorporated in said unsaturated polyester component, provided that said vinyl ether component contains an average of at least two vinyl ether groups per molecule of said vinyl ether component.
Claim 2
Dependent Claim
66 words
A liquid, radiation curable, composition comprising: an unsaturated polyester component comprising an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof; and a non-polymerized, cocurable vinyl ether component which may be separate from or structurally incorporated in said unsaturated polyester component, provided that said vinyl ether component contains an average of at least two vinyl ether groups per molecule of said vinyl ether component.
Claim 3
Dependent Claim
101 words
The composition of claim 1 wherein a 1 mil thick wet film of said composition crosslinks in air through its thickness to a tack-free state upon exposure to from 0.5 to 5 megarads of ionizing radiation, or, provided said composition further comprises a photoinitiator, upon exposure to ultraviolet light by passing said 1 mil thick wet film of said composition containing said photoinitiator at a rate of 20 feet per minute or more under four or fewer medium pressure mercury vapor lamps operating at 200 watts per inch at a distance of 4 inches from the surface of said wet film.
Claim 4
Dependent Claim
35 words
The composition of claim 1 wherein the ratio of carbon-carbon double bond equivalents of said vinyl ether groups to carbon-carbon double bond equivalents from said polyester is in a range of from 0.1:1.0 to 1.5:1.0.
Claim 5
Dependent Claim
8 words
The composition of claim 3 comprising a photoinitiator.
Claim 6
Dependent Claim
10 words
The composition of claim 3 comprising a thermal polymerization inhibitor.
Claim 7
Dependent Claim
38 words
The composition of claim 3 wherein said unsaturated polyester component comprises an unsaturated polyester polymer having a peak molecular weight, as measured by gel permeation chromatography using a polystyrene standard, in a range of from 800 to 50,000.
Claim 8
Dependent Claim
35 words
The composition of claim 6 wherein the ratio of carbon-carbon double bond equivalents of said vinyl ether groups to carbon-carbon double bond equivalents of said polyester is in a range of from 0.25:1.0 to 1.1:1.0.
Claim 9
Dependent Claim
38 words
The composition of claim 6 wherein said unsaturated polyester component comprises an unsaturated polyester polymer having a peak molecular weight, as measured by gel permeation chromatography using a polystyrene standard, in a range of from 1,200 to 5,000.
Claim 10
Dependent Claim
23 words
The composition of claim 1 wherein said unsaturated component is of an unsaturated polyester-urethane polymer, an unsaturated polyester-urethane oligomer or a mixture thereof.
Claim 11
Dependent Claim
29 words
The composition of claim 1 wherein said unsaturated component comprising an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof is separate from said vinyl ether component.
Claim 12
Independent Claim
97 words
A method of coating comprising: (A) applying to a substrate a film of a liquid, radiation curable composition containing an unsaturated component of an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof, and a vinyl ether component which may be separate from or structurally incorporated in said unsaturated component, provided that said vinyl ether component contains an average of at least two vinyl ether groups per molecule of said vinyl ether component; and (B) curing said composition through its thickness to a tack-free state by exposing said film to ionizing radiation and/or ultraviolet light.
Claim 13
Independent Claim
97 words
A method of coating comprising: (A) applying to a substrate a film of a liquid, radiation curable composition containing an unsaturated component of an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof, and a vinyl ether component which may be separate from or structurally incorporated in said unsaturated component, provided that said vinyl ether component contains an average of at least two vinyl ether groups per molecule of said vinyl ether component; and (B) curing said composition through its thickness to a tack-free state by exposing said film to ionizing radiation and/or ultraviolet light.
Claim 14
Dependent Claim
35 words
The method of claim 11 wherein the ratio of carbon-carbon double bond equivalents of said vinyl ether groups to carbon-carbon double bond equivalents from said polyester is in a range of from 0.1:1.0 to 1.5:1.0.
Claim 15
Dependent Claim
11 words
The method of claim 12 wherein said composition contains a photoinitiator.
Claim 16
Dependent Claim
13 words
The method of claim 12 wherein said composition contains a thermal polymerization inhibitor.
Claim 17
Dependent Claim
38 words
The method of claim 12 wherein said unsaturated polyester component comprises an unsaturated polyester polymer having a peak molecular weight, as measured by gel permeation chromatography using a polystyrene standard, in a range of from 800 to 50,000.
Claim 18
Dependent Claim
35 words
The method of claim 15 wherein the ratio of carbon-carbon double bond equivalents of said vinyl ether groups to carbon-carbon double bond equivalents of said polyester is in a range of from 0.25:1.0 to 1.1:1.0.
Claim 19
Dependent Claim
38 words
The method of claim 15 wherein said unsaturated polyester component comprises an unsaturated polyester polymer having a peak molecular weight, as measured by gel permeation chromatography using a polystyrene standard, in a range of from 1,200 to 5,000.
Claim 20
Dependent Claim
23 words
The method of claim 11 wherein said unsaturated component is of an unsaturated polyester-urethane polymer, an unsaturated polyester-urethane oligomer or a mixture thereof.
Claim 21
Dependent Claim
29 words
The method of claim 11 wherein said unsaturated component comprising an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof is separate from said vinyl ether component.
Claim 22
Dependent Claim
84 words
A substrate having therein a cured film comprising: an unsaturated polyester component of an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof crosslinked via reaction of ethylenic unsaturation from said unsaturated polyester component with vinyl unsaturation from said vinyl ether component which vinyl ether component, prior to crosslinking, was separate from or structurally incorporated in said unsaturated polyester component, wherein said vinyl ether component contained an average of at least two vinyl ether groups per molecule of said vinyl ether component.
Claim 23
Dependent Claim
84 words
A substrate having therein a cured film comprising: an unsaturated polyester component of an unsaturated polyester polymer, an unsaturated polyester oligomer or a mixture thereof crosslinked via reaction of ethylenic unsaturation from said unsaturated polyester component with vinyl unsaturation from said vinyl ether component which vinyl ether component, prior to crosslinking, was separate from or structurally incorporated in said unsaturated polyester component, wherein said vinyl ether component contained an average of at least two vinyl ether groups per molecule of said vinyl ether component.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.