US4764410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louvered plastic film and method of making the same
Assignee: 3M Co
•
Filing: 1986-09-18
•
Granted: 1988-08-16
•
Expires: 2006-09-18
Abstract
Abstract Louvered plastic film can be more easily handled and installed by coating at least one surface with a solvent-free monomer composition and exposing the coating to ultraviolet radiation to polymerize the composition to an adhesive state, preferably a pressure-sensitive adhesive state.
Inventors
- 👤 Robert F. Grzywinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:19
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/04; C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; C09; C09J; C09J7/00; C09J7/30; C09J7/38; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24182
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
101 words
A method for supporting a louvered plastic film, which method comprises the steps of: (1) coating at least one major surface of a louvered plastic film skived from a billet with a solvent-free composition in a fluid state which polymerizes upon exposure to ultraviolet radiation to form an optical surface; then (2) bringing an ultraviolet transparent plastic film in surface contact with said coating of solvent-free composition in said fluid state to form a composite and to isolate said composition from the ambient atmosphere; and then (3) exposing said composite to sufficient ultraviolet radiation to polymerize said coating of solvent-free composition.
Claim 2
Independent Claim
101 words
A method for supporting a louvered plastic film, which method comprises the steps of: (1) coating at least one major surface of a louvered plastic film skived from a billet with a solvent-free composition in a fluid state which polymerizes upon exposure to ultraviolet radiation to form an optical surface; then (2) bringing an ultraviolet transparent plastic film in surface contact with said coating of solvent-free composition in said fluid state to form a composite and to isolate said composition from the ambient atmosphere; and then (3) exposing said composite to sufficient ultraviolet radiation to polymerize said coating of solvent-free composition.
Claim 3
Dependent Claim
22 words
A method as defined in claim 1 further comprising the next step of 4) rolling said composite upon itself into a roll.
Claim 4
Dependent Claim
25 words
Method as defined in claim 1 wherein said ultraviolet transparent plastic film is selected to become pemanently bonded to the polymerized coating of solvent-free composition.
Claim 5
Dependent Claim
31 words
Method as defined in claim 1 wherein said ultraviolet transparent plastic film has a release surface permitting it later to be peeled away to expose said polymerized coating of solvent-free composition.
Claim 6
Dependent Claim
38 words
Method as defined in claim 1 further comprising the steps of peeling away said ultraviolet transparent plastic film, and employing the exposed polymerized coating of solvent-free composition to bond the louvered plastic film to a transparent supporting member.
Claim 7
Dependent Claim
18 words
Method as defined in claim 3 wherein said ultraviolet transparent plastic film is a film of a polycarbonate.
Claim 8
Dependent Claim
31 words
Method as defined in claim 1 wherein said exposing step comprises exposing said coating of solvent-free composition to sufficient radiation to polymerize said composition to an optically clear pressure-sensitive adhesive state.
Claim 9
Dependent Claim
37 words
Method as defined in claim 1 further comprising the steps of screen-printing a design or message directly onto the exposed surface of the louvered plastic film and then overcoating the printed face with an optically clear layer.
Claim 10
Dependent Claim
42 words
Method as defined in claim 1 including the steps of coating the other major surface of said louvered plastic film with said solvent-free composition, and exposing said other major surface to ultraviolet radiation to polymerize said solvent-free composition to an adhesive state
Claim 11
Dependent Claim
44 words
A composite louvered film product comprising: a sheet of louvered plastic film having two major surfaces; a layer of an ultraviolet radiation polymerized optically clear composition on at least one of said major surfaces; and an ultraviolet transparent plastic film adhered to said layer.
Claim 12
Dependent Claim
44 words
A composite louvered film product comprising: a sheet of louvered plastic film having two major surfaces; a layer of an ultraviolet radiation polymerized optically clear composition on at least one of said major surfaces; and an ultraviolet transparent plastic film adhered to said layer.
Claim 13
Dependent Claim
19 words
A composite as defined in claim 10 wherein said layer is polymerized to an optically clear pressure-sensitive adhesive state.
Claim 14
Dependent Claim
28 words
A composite as defined in claim 11 wherein said ultraviolet transparent plastic film has a release surface permitting it to be peeled from said polymerized layer and discarded.
Claim 15
Dependent Claim
25 words
A composite as defined in claim 10 wherein said ultraviolet transparent plastic film is permanently bonded by said polymerized layer to the louvered plastic film.
Claim 16
Dependent Claim
15 words
A composite as defined in claim 13 wherein the transparent plastic film is a polycarbonate.
Claim 17
Dependent Claim
38 words
A composite as defined in claim 10 wherein both major surfaces of said louvered plastic film have a layer of an ultraviolet radiation polymerized optically clear composition and an ultraviolet transparent plastic film in contact with said layer.
Claim 18
Dependent Claim
25 words
A composite according to claim 10 wherein said layer of polymerized composition has a thickness between 0.04 and 1.5 mm and said composite is flexible.
Claim 19
Dependent Claim
27 words
A composite according to claim 15 wherein said layers of polymerized composition each have a thickness of between 0.04 and 1.5 mm and said composite is flexible.
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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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |