US6203885B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cling films having a microreplicated topography and methods of making and using same
Assignee: 3M Innovative Properties Co
•
Filing: 1998-06-18
•
Granted: 2001-03-20
•
Expires: 2018-06-18
Abstract
Abstract Films having a microreplicated topography are prepared from contacting a microembossed pattern to a layer of film. When an adhesion interface is established between the layer of film and a supporting substrate, the topography of the film surface controls the performance of the adhesion interface. Articles having microreplicated film surfaces are also disclosed that have an advantage of providing microchannels for fluid egress for an effective period of time. Multiple microembossed patterns produce microreplicated film surfaces having both microchannels for fluid egress and pegs for improved film properties.
Inventors
- 👤 Frank T. Sher
- 👤 Francis V. Loncar, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/08; B44F1/14; B29; B29C; B29C59/00; B29C59/02; B29C59/022; C; C09; C09J; C09J7/00; C09J7/10; B29C2059/023; B33; B33Y; B33Y80/00; C09J2301/00; C09J2301/30; C09J2301/31; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24587
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
An article comprising a layer of cling film having a topography having an effective three-dimensional pattern that generates a depth less than the thickness of the continuous film on a mounting surface of the cling film, said article being capable of, at the time of application to a smooth surface, clinging by application of static interaction to that smooth surface without the application of an adhesive between the article and the smooth surface, wherein said topography provides channels that allow egress of air or other fluid when the cling film is contacted to the smooth surface.
Claim 2
Dependent Claim
96 words
An article comprising a layer of cling film having a topography having an effective three-dimensional pattern that generates a depth less than the thickness of the continuous film on a mounting surface of the cling film, said article being capable of, at the time of application to a smooth surface, clinging by application of static interaction to that smooth surface without the application of an adhesive between the article and the smooth surface, wherein said topography provides channels that allow egress of air or other fluid when the cling film is contacted to the smooth surface.
Claim 3
Dependent Claim
20 words
The article according to claim 1 , wherein the mounting surface has a complex pattern of differing depths or heights.
Claim 4
Dependent Claim
19 words
The article of claim 1 , wherein different types of materials are introduced into recesses of the mounting surface.
Claim 5
Dependent Claim
33 words
The article according to claim 1 , further comprising a supporting substrate and an interface between the supporting substrate and the mounting surface, wherein the mounting surface controls fluid egress from the interface.
Claim 6
Dependent Claim
36 words
The article of claim 1 , wherein the layer further comprises a major, opposing film surface having topography having an effective three dimensional pattern that generates a depth less than the thickness of the continuous film.
Claim 7
Dependent Claim
15 words
The article of claim 1 , wherein said topography comprises at least two microembossed patterns.
Claim 8
Dependent Claim
20 words
The article according to claim 6 , wherein the mounting surface has a complex pattern of differing depths or heights.
Claim 9
Dependent Claim
28 words
The article according to claim 6 , wherein different types of materials are introduced into recesses of differing depths of the multiple microembossed pattern of the mounting surface.
Claim 10
Dependent Claim
33 words
The article according to claim 6 , further comprising a supporting substrate and an interface between the supporting substrate and the mounting surface, wherein the mounting surface controls fluid egress from the interface.
Claim 11
Dependent Claim
37 words
The article according to claim 6 , wherein the layer further comprises a major, opposing film surface, having topography having an effective three dimensional pattern that generates a depth less than the thickness of the continuous film.
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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) | 2004-03-19 | 2004-09-18 | 2005-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-19 | 2008-09-18 | 2009-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-19 | 2012-09-18 | 2013-03-20 | $7700.00 | Window Closed / Lapsed |