Patent US3131939A successfully refreshed from Google Patents.
Patent US5874158A successfully refreshed from Google Patents.
US5874158A
Expired / Lapsed
US
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Heat activated translucent marking films
Assignee: 3M Co
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Filing: 1996-03-11
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Granted: 1999-02-23
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Expires: 2016-03-11
Abstract
Abstract Heat activated, translucent marking films are disclosed. The translucent, heat activated marking film has a transferable, translucent, plastic film and field of a heat activated, translucent adhesive adhered to the plastic film. The marking film is prepared and stored on a polymeric liner until transfer by heat to a substrate, such as a back-lit sign or an awning. The film can be cut into images prior to heat transfer to the substrate according to commercial graphics techniques.
Inventors
- 👤 Bret W. Ludwig
- 👤 Chi Chung Hsu
- 👤 Roger E. Bakken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:48
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B41; B41M; B41M5/00; B41M5/26; B44C1/162; C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A translucent, heat activated marking film comprising a translucent, plastic film having two major surfaces, a heat activated, translucent adhesive on one major surface of the plastic film, and a polymeric liner on the second major surface, wherein the adhesive, upon heat activation is adapted to transfer the plastic film to a flexible substrate, wherein the liner is removable from the plastic film after transfer of the adhesive and the plastic film to the flexible substrate, and wherein the adhesive is nonreactive with both the plastic film and the flexible substrate.
Claim 2
Dependent Claim
91 words
A translucent, heat activated marking film comprising a translucent, plastic film having two major surfaces, a heat activated, translucent adhesive on one major surface of the plastic film, and a polymeric liner on the second major surface, wherein the adhesive, upon heat activation is adapted to transfer the plastic film to a flexible substrate, wherein the liner is removable from the plastic film after transfer of the adhesive and the plastic film to the flexible substrate, and wherein the adhesive is nonreactive with both the plastic film and the flexible substrate.
Claim 3
Dependent Claim
33 words
The marking film of claim 1, further comprising a presize coating between the liner and the plastic film and further comprising a protective clear layer between the plastic film and the presize coating.
Claim 4
Dependent Claim
36 words
The marking film of claim 1, further comprising a presize coating between the liner and the plastic film and further comprising a presize coating on a major surface of the liner not contacting the plastic film.
Claim 5
Dependent Claim
27 words
The marking film of claim 3, further comprising an antistatic coating between the major surface of the liner not contacting the plastic film and the presize coating.
Claim 6
Dependent Claim
39 words
The marking film of claim 1, wherein plastic film comprises a composition selected from group consisting of polyvinyl fluoride, polyvinylidene fluoride, acrylic-urethane films, vinyl-containing plastic films, and combinations thereof; and pigments to provide a color to the plastic film.
Claim 7
Dependent Claim
76 words
The marking film of claim 1, wherein the plastic film comprises a translucent vinyl film having a formulation of from about 42 to about 56 weight percent polyvinyl chloride, from about 0 to about 25 weight percent acrylic resin; from about 15 to about 25 weight percent plasticizers; from about 0 to 33 weight percent pigment; from about 0.5 to about 8 weight percent stabilizers; and from about 0.1 to about 6 weight percent ultra-violet protectors.
Claim 8
Dependent Claim
31 words
The marking film of claim 1, wherein the adhesive is not tacky at room temperatures but become activated through the application of heat ranging from about 65 to about 110° C.
Claim 9
Dependent Claim
37 words
The film of claim 7, wherein the adhesive is selected from the group consisting of (meth)acrylic (co)polymers having a glass transition temperature ranging from about 15° to about 63° C., vinyl chloride--vinyl acetate copolymers, and blends thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-22 | 2002-08-24 | 2003-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-22 | 2006-08-24 | 2007-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-22 | 2010-08-24 | 2011-02-23 | $7700.00 | Window Closed / Lapsed |