EP0315360A2
Expired / Lapsed
EP
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Imaged copy film
Assignee: Imperial Chemical Industries Ltd
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Filing: 1988-10-26
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Granted: —
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Expires: 2008-10-26
Abstract
Abstract An imaged copy film comprising (a) a polymeric film substrate, (b) an image-receiving layer comprising a terpolymer of a vinyl halide, a vinyl ester of a saturated aliphatic carboxylic acid and a functional group-containing unsaturated termonomer, and (c) an electrostatic copying toner image layer. Toner adhesion is improved and the applied images exhibit superior resistance to abrasion and erasure.
Inventors
- 👤 Stuart Christopher Rennison
- 👤 Darrin John Page
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 09:38
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0053; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; G03G7/006; G03G7/0073; G03G7/008; G03G7/0086
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
An imaged copy film comprising a) a film substrate of a synthetic polymeric material having, on at least one surface thereof, b) a receiving layer, and, on a surface of the receiving layer remote from the substrate, c) an electrostatic copying toner image layer, characterised in that the receiving layer comprises a terpolymer of i) from 60 to 98 weight % of a vinyl halide, ii) from 1 to 20 weight % of a vinyl ester of a saturated aliphatic carboxylic acid the molecule of which contains from 2 to 6 carbon atoms, and iii) from 1 to 20 weight % of a functional group-containing ethylenically-unsaturated termonomer.
Claim 2
Dependent Claim
107 words
An imaged copy film comprising a) a film substrate of a synthetic polymeric material having, on at least one surface thereof, b) a receiving layer, and, on a surface of the receiving layer remote from the substrate, c) an electrostatic copying toner image layer, characterised in that the receiving layer comprises a terpolymer of i) from 60 to 98 weight % of a vinyl halide, ii) from 1 to 20 weight % of a vinyl ester of a saturated aliphatic carboxylic acid the molecule of which contains from 2 to 6 carbon atoms, and iii) from 1 to 20 weight % of a functional group-containing ethylenically-unsaturated termonomer.
Claim 3
Dependent Claim
18 words
A copy film according to claim 1 comprising a receiving layer on each surface of the film substrate.
Claim 4
Dependent Claim
24 words
A copy film according to either of claims 1 and 2 comprising a backing paper bonded to a non-imaged surface of the film substrate.
Claim 5
Dependent Claim
21 words
A copy film according to any one of the preceding claims comprising a wax layer on the, or each, receiving layer.
Claim 6
Dependent Claim
22 words
A copy film according to any one of the preceding claims comprising a finely-divided particulate material in the, or each, receiving layer.
Claim 7
Dependent Claim
43 words
A copy film according to any one of the preceding claims wherein the receiving layer comprises (i) vinyl chloride, (ii) vinyl acetate and (iii) a hydroxyl-containing alkyl acrylate or alkyl methacrylate in which the alkyl group contains from 1 to 6 carbon atoms.
Claim 8
Dependent Claim
23 words
A copy film according to claim 6 wherein the hydroxyl content of the terpolymer is from 1.5 to 2.5 % by weight thereof.
Claim 9
Dependent Claim
47 words
A copy film according to either of claims 6 and 7 wherein the terpolymer comprises from 75 to 85% by weight of vinyl chloride, from 2 to 8% by weight of vinyl acetate, and the balance (to 100% by weight) of a hydroxy alkyl acrylate or methacrylate.
Claim 10
Dependent Claim
21 words
A copy film according to any of the preceding claims wherein the substrate comprises a biaxially oriented film of polyethylene terephthalate.
Claim 11
Independent Claim
104 words
A method of producing an imaged copy film comprising forming a receiving layer on at least one surface of a film substrate of a synthetic polymeric material and electrostatically applying to the receiving layer an image layer of a copying toner, characterised in that the receiving layer comprises a terpolymer of i) from 60 to 98 weight % of a vinyl halide, ii) from 1 to 20 weight % of a vinyl ester of a saturated aliphatic carboxylic acid the molecule of which contains from 2 to 6 carbon atoms, and iii) from 1 to 20 weight % of a functional group-containing ethylenically-unsaturated termonomer.
Claim 12
Independent Claim
104 words
A method of producing an imaged copy film comprising forming a receiving layer on at least one surface of a film substrate of a synthetic polymeric material and electrostatically applying to the receiving layer an image layer of a copying toner, characterised in that the receiving layer comprises a terpolymer of i) from 60 to 98 weight % of a vinyl halide, ii) from 1 to 20 weight % of a vinyl ester of a saturated aliphatic carboxylic acid the molecule of which contains from 2 to 6 carbon atoms, and iii) from 1 to 20 weight % of a functional group-containing ethylenically-unsaturated termonomer.
References Cited (Backward Citations)
No citation records indexed.
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