EP0375215A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Polymeric film
Assignee: EIDP Inc
•
Filing: 1989-12-07
•
Granted: —
•
Expires: 2009-12-07
Abstract
Abstract A metallised film comprises a substrate layer of a synthetic polymeric material having on at least one surface thereof an adherent layer and a metallic layer on the surface of the at least one adherent layer remote from the substrate, the adherent layer comprising an acrylic and/or methacrylic polymer containing at least one monomer having a free carboxylic group, wherein the carboxylic group content of the polymer is greater than 6 mole %.
Inventors
- 👤 Neil Poole
- 👤 Thane Colin Gough
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 21:14
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; B32B7/00; B32B7/04; B32B7/12; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/0427; C08J7/043; C08J7/052; C08J2433/00; C08L; C08L61/00; C08L61/20; H; H05; H05K; H05K3/00; H05K3/38; H05K3/386
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
76 words
A metallised film comprising a substrate layer of a synthetic polymeric material having on at least one surface thereof an adherent layer and a metallic layer on the surface of the at least one adherent layer remote from the substrate, characterised in that the adherent layer comprises an acrylic and/or methacrylic polymer comprising at least one monomer containing a free carboxylic group, wherein the carboxylic group content of the polymer is greater than 6 mole %.
Claim 2
Dependent Claim
76 words
A metallised film comprising a substrate layer of a synthetic polymeric material having on at least one surface thereof an adherent layer and a metallic layer on the surface of the at least one adherent layer remote from the substrate, characterised in that the adherent layer comprises an acrylic and/or methacrylic polymer comprising at least one monomer containing a free carboxylic group, wherein the carboxylic group content of the polymer is greater than 6 mole %.
Claim 3
Dependent Claim
22 words
A metallised film as claimed in claim 1 wherein the carboxylic group content of the polymer is less than 35 mole %.
Claim 4
Dependent Claim
34 words
A metallised film as claimed in either of claims 1 and 2 wherein the at least one monomer is selected from acrylic acid, methacrylic acid and/or a derivative of acrylic acid and/or methacrylic acid.
Claim 5
Dependent Claim
28 words
A metallised film as claimed in any one of the preceding claims wherein the adherent layer comprises a polymer comprising methyl methacrylate/butyl acrylate/ (acrylic acid and/or methacrylic acid).
Claim 6
Dependent Claim
51 words
A metallised film as claimed in any one of the preceding claims wherein the adherent layer comprises a polymer comprising 30 to 40 mole % of methyl methacrylate/40 to 50 mole % of butyl acrylate/5 to 15 mole % of styrene/10 to 20 mole % of (acrylic acid and/or methacrylic acid).
Claim 7
Dependent Claim
21 words
A metallised film as claimed in any one of the preceding claims wherein the adherent layer is at least partially cross-linked.
Claim 8
Dependent Claim
43 words
A metallised film as claimed in any one of the preceding claims wherein the adherent layer contains a particulate filler having a particle size less than 1.0 µm, and being present in an amount up to 50% by weight of the adherent layer.
Claim 9
Dependent Claim
23 words
A metallised film as claimed in any one of the preceding claims wherein the substrate comprises a biaxially oriented film of polyethylene terephthalate.
Claim 10
Independent Claim
82 words
A method of producing a metallised film by forming a substrate layer of a synthetic polymeric material, applying to at least one surface thereof an adherent layer, and depositing a metallic layer on the surface of the at least one adherent layer remote from the substrate, characterised in that the adherent layer comprises an acrylic and/or methacrylic polymer comprising at least one monomer containing a free carboxylic group, wherein the carboxylic group content of the polymer is greater than 6 mole %.
Claim 11
Independent Claim
82 words
A method of producing a metallised film by forming a substrate layer of a synthetic polymeric material, applying to at least one surface thereof an adherent layer, and depositing a metallic layer on the surface of the at least one adherent layer remote from the substrate, characterised in that the adherent layer comprises an acrylic and/or methacrylic polymer comprising at least one monomer containing a free carboxylic group, wherein the carboxylic group content of the polymer is greater than 6 mole %.
Claim 12
Dependent Claim
48 words
A method as claimed in claim 9 wherein the substrate is a polyethylene terephthalate film which is biaxially oriented by sequential stretching in two mutually perpendicular directions, the adherent coating medium being applied to the film substrate between the two stages (longitudinal and transverse) of the biaxial stretching.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.