US5217773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image protective film
Assignee: Toppan Inc
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Filing: 1992-01-15
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Granted: 1993-06-08
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Expires: 2012-01-15
Abstract
Abstract An image protective film comprising a laminated film comprising a base layer, a release layer formed of a resin having no compatibility with the base layer and an adhesive layer formed of a thermoadhesive resin; said laminated film. The film is superposed on an image surface of an object article so as for the adhesive layer to come into contact with the image surface. Upon heating, it becomes separable from the object article in such a way that the base layer and the release layer remain on the object article to form a protective layer only on the heated area thereof.
Inventors
- 👤 Masato Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:44
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M7/00; B41M7/0027; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2848; Y10T428/2852; Y10T428/287
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
An image protective film comprising a laminated film comprising a base layer comprising a PET film, a release layer formed of a resin having no compatibility with the base layer and comprising an acrylic resin film containing a polyethylene filler, and an adhesive layer formed of a thermoadhesive resin comprising a polyester resin, an epoxy resin and an ultraviolet absorbent; wherein when said laminated film is superposed on an image surface of an object article such that said adhesive layer comes into contact with said image surface and is thereafter heated, the base layer is separated from said object article, and said adhesive layer and said release layer remain on said object article to form a protective layer.
Claim 2
Dependent Claim
118 words
An image protective film comprising a laminated film comprising a base layer comprising a PET film, a release layer formed of a resin having no compatibility with the base layer and comprising an acrylic resin film containing a polyethylene filler, and an adhesive layer formed of a thermoadhesive resin comprising a polyester resin, an epoxy resin and an ultraviolet absorbent; wherein when said laminated film is superposed on an image surface of an object article such that said adhesive layer comes into contact with said image surface and is thereafter heated, the base layer is separated from said object article, and said adhesive layer and said release layer remain on said object article to form a protective layer.
Claim 3
Dependent Claim
15 words
The image protective film according to claim 1, wherein said adhesive layer contains no plasticizer.
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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) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |