Patent EP0232040A2 successfully refreshed from Google Patents.
EP0232040A2
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Inkable Sheet
Assignee: Imperial Chemical Industries Ltd
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Filing: 1987-01-19
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Granted: —
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Expires: 2007-01-19
Abstract
Abstract An inkable sheet comprises a base sheet, such as a PET film, having on a surface thereof an ink-absorbent resin layer comprising an acrylic or methacrylic polymer containing free carboxylic acid groups and a plasticiser therefor.
Inventors
- 👤 Alan Butters
- 👤 Roger Nicholas Barker
- 👤 Graham Alastair Page
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 14:43
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/25; Y10T428/251; Y10T428/256; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
38 words
An inkable sheet comprising a base sheet having on a surface thereof an ink-absorbent polymeric resin layer characterised in that the resing layer comprises an acrylic or methacrylic polymer containing free carboxylic acid groups and a plasticiser therefor.
Claim 2
Dependent Claim
38 words
An inkable sheet comprising a base sheet having on a surface thereof an ink-absorbent polymeric resin layer characterised in that the resing layer comprises an acrylic or methacrylic polymer containing free carboxylic acid groups and a plasticiser therefor.
Claim 3
Dependent Claim
33 words
An inkable sheet according to claim 1 wherein the resin layer comprises a copolymer of acrylic acid or methacrylic acid with a lower alkyl (1 to 6 carbon atoms) acrylate or methacrylate ester.
Claim 4
Dependent Claim
26 words
An inkable sheet according to either of claims 1 and 2 wherein the acrylic or methacrylic polymer has an acid value of from 400 to 450.
Claim 5
Dependent Claim
24 words
An inkable sheet according to any one of the preceding claims wherein the plasticiser comprises a polyglycol having a molecular weight not exceeding 350.
Claim 6
Dependent Claim
32 words
An inkable sheet according to any one of the preceding claims wherein the ink-absorbent resin layer additionally comprises at least one additive selected from a surfactant, a humectant and a particulate filler.
Claim 7
Dependent Claim
24 words
An inkable sheet according to any one of the preceding claims comprising at least one primer layer between the base sheet and resin layer.
Claim 8
Dependent Claim
23 words
An inkable sheet according to any one of the preceding claims wherein the base sheet comprises a biaxially oriented film of polyethylene terephthalate.
Claim 9
Dependent Claim
29 words
An imaged transparency for use in a transmission mode comprising a sheet according to any one of the preceding claims having an inked image applied to the resin layer.
Claim 10
Independent Claim
56 words
A method of preparing an inkable sheet characterised by applying to a surface of a base sheet a coating medium comprising an acrylic or methacrylic polymer containing free carboxylic acid groups and a plasticiser therefor, and drying the applied coating medium to yield a substantially water-insoluble, ink-absorbent, polymeric layer on a surface of the base sheet.
Claim 11
Independent Claim
56 words
A method of preparing an inkable sheet characterised by applying to a surface of a base sheet a coating medium comprising an acrylic or methacrylic polymer containing free carboxylic acid groups and a plasticiser therefor, and drying the applied coating medium to yield a substantially water-insoluble, ink-absorbent, polymeric layer on a surface of the base sheet.
Claim 12
Dependent Claim
30 words
A method according to claim 9 wherein the ink-absorbent polymer comprises a copolymer of methacrylic acid and methyl methacrylate, the copolymer having an acid value of from 400 to 450.
References Cited (Backward Citations)
No citation records indexed.
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