EP0094182A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Dry transfer article
Assignee: 3M Co
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Filing: 1983-04-29
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Granted: —
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Expires: 2003-04-29
Abstract
Abstract A dry transfer article comprising a carrier film bearing a graphic design in the form of one or more layers of ink and an actinic radiation responsive adhesive overlapping the design, the ink serving as a mask to actinic radiation such that only adhesive in non-ink areas is exposed to radiation creating a differential adhesive tack which allows the article to be positioned on the substrate and the carrier film and exposed adhesive to be selectively removed leaving the graphic design and underlying unexposed adhesive bonded to the substrate.
Inventors
- 👤 Richard E. Bennett
- 👤 Donald V. Flatt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/12; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733; G; G03; G03F; G03F7/00; G03F7/26; G03F7/34; G03F7/346; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/1433; Y10T428/15; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24893; Y10T428/24901; Y10T428/28; Y10T428/2809; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31587; Y10T428/31721; Y10T428/31725; Y10T428/31786
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
169 words
A dry transfer article for application to a substrate to provide a design thereon, such article comprising a continuous, actinic radiation transparent carrier film presenting a major surface having first and second surface portions, a graphic pattern comprising at least one layer of radiation opaque, carrier film compatible ink bonded to said first portions of said major surface of said carrier film, and a continuous, actinic radiation responsive layer of adhesive, said adhesive having first segments bonded to said ink and second segments bonded to said second surface portions of said major surface of said carrier film, said adhesive upon exposure of said second segments to actinic radiation through said second surface portions being capabl-e of providing a bond to-said substrate whereby application of a peel force to said carrier film allows selective separation from said substrate of said carrier film together with exposed second seg- 'ments of said adhesive along the edge of said ink, leaving on said substrate said ink and unexposed first segments of said adhesive.
Claim 2
Dependent Claim
169 words
A dry transfer article for application to a substrate to provide a design thereon, such article comprising a continuous, actinic radiation transparent carrier film presenting a major surface having first and second surface portions, a graphic pattern comprising at least one layer of radiation opaque, carrier film compatible ink bonded to said first portions of said major surface of said carrier film, and a continuous, actinic radiation responsive layer of adhesive, said adhesive having first segments bonded to said ink and second segments bonded to said second surface portions of said major surface of said carrier film, said adhesive upon exposure of said second segments to actinic radiation through said second surface portions being capabl-e of providing a bond to-said substrate whereby application of a peel force to said carrier film allows selective separation from said substrate of said carrier film together with exposed second seg- 'ments of said adhesive along the edge of said ink, leaving on said substrate said ink and unexposed first segments of said adhesive.
Claim 3
Dependent Claim
28 words
The article of claim 1 wherein said major surface of said carrier film is composed of a material selected from the class consisting of polyester, polyimide and polyamide.
Claim 4
Dependent Claim
13 words
The article of claim 1 wherein said ink comprises a polyurethane polymer base.
Claim 5
Dependent Claim
38 words
The article of claim 1 wherein said adhesive comprises an effective amount of an ionic photoinitiator and the reaction product of a reactive system comprising an oxirane-ring containing vinyl compound and at least one additional vinyl containing monomer.
Claim 6
Dependent Claim
60 words
The article of claim 1 wherein said adhesive comprises a reaction product of a reactive system comprising isooctyl acrylate, at least one oxirane-ring containing vinyl compound selected from the class consisting of glycidyl methacrylate, glycidyl allyl ether, and glycidyl acrylate, and at least one additional vinyl containing monomer selected from the class consisting of N-vinyl pyrrolidone, methyl acrylate and acrylamide.
Claim 7
Dependent Claim
69 words
The article of claim 1 wherein said major surface of said carrier film is polypropylene, said ink comprises a polyurethane polymer base, and said adhesive comprises an effective amount of an ionic photoinitiator, a reaction product of a reactive system comprising from 5% to 25% by weight of at least one oxirane-ring containing vinyl compound, and at least 75% by weight of at least one additional vinyl containing monomer.
Claim 8
Dependent Claim
30 words
The article of claim 1 wherein said adhesive is a normally tacky, pressure-sensitive adhesive and said second portions of said major surface of said carrier film are corona discharge treated.
Claim 9
Dependent Claim
15 words
The article of claim 1 wherein said ink is an ultra" violet light cured composition.
Claim 10
Dependent Claim
26 words
The article of claim 1 wherein said major surface 5 f said carrier film is a material selected from the class consisting of polyethylene and polypropylene.
Claim 11
Dependent Claim
49 words
The article of claim 4 wherein said oxirane-ring containing vinyl compound is present in said reactive system to the extent of about 7% to about 18% by weight and said oxirane-ring containing vinyl compound is selected from the class consisting of glycidyl acrylate, glycidyl methacrylate and glycidyl allyl ether.
Claim 12
Dependent Claim
24 words
The article of claim 6 wherein said second surface portions of said polypropylene major surface are treated to increase the surface free energy thereof.
Claim 13
Independent Claim
193 words
A method for making a dry transfer article comprising the steps of (1) providing a continuous, actinic radiation transparent film presenting a major surface having first and second surface portions, (2) applying to said first surface portions of said major surface an actinic radiation opaque, carrier film compatible ink, (3) applying a continuous layer of actinic radiation responsive adhesive over said ink and said second surface portions of said major surface, said adhesive having first segments bonded to said ink and second segments bonded to said second surface portions of said major surface of said carrier film, and (4) exposing said article to actinic radiation such that said ink masks passage of said actinic radiation to said first segments of said adhesive and said second surface portions transmit said actinic radiation to said second segments of said adhesive, whereby upon application of said article to a given substrate, a peeling force applied to said carrier film allows selective separation from said substrate of said carrier film together with exposed second segments of said adhesive along the edge of said ink, leaving on said substrate said ink and unexposed first segments of said adhesive.
Claim 14
Independent Claim
193 words
A method for making a dry transfer article comprising the steps of (1) providing a continuous, actinic radiation transparent film presenting a major surface having first and second surface portions, (2) applying to said first surface portions of said major surface an actinic radiation opaque, carrier film compatible ink, (3) applying a continuous layer of actinic radiation responsive adhesive over said ink and said second surface portions of said major surface, said adhesive having first segments bonded to said ink and second segments bonded to said second surface portions of said major surface of said carrier film, and (4) exposing said article to actinic radiation such that said ink masks passage of said actinic radiation to said first segments of said adhesive and said second surface portions transmit said actinic radiation to said second segments of said adhesive, whereby upon application of said article to a given substrate, a peeling force applied to said carrier film allows selective separation from said substrate of said carrier film together with exposed second segments of said adhesive along the edge of said ink, leaving on said substrate said ink and unexposed first segments of said adhesive.
Claim 15
Dependent Claim
25 words
The process of claim 12 wherein said major surface of said film comprises a material selected from the class consisting of polyester, polyimide, and polyamide.
Claim 16
Dependent Claim
17 words
The process of claim 12 wherein said major surface of said carrier film comprises polyethylene or polypropylene.
Claim 17
Dependent Claim
64 words
The process of any one of claims 12 to 14 wherein between steps (2) and (3), a further step is provided comprising providing said major surface of said carrier film bearing on said first surface portions thereof said ink with a treatment to increase the surface free energy of said second surface portions relative to the surface free energy of said first surface portions.
Claim 18
Dependent Claim
19 words
The process of any one of claims 12 to 16 wherein said adhesive is a normally tacky, pressure-sensitive adhesive.
References Cited (Backward Citations)
No citation records indexed.
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