Patent US1594003A successfully refreshed from Google Patents.
Patent US5650215A successfully refreshed from Google Patents.
US5650215A
Expired / Lapsed
US
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Pressure-sensitive adhesives having microstructured surfaces
Assignee: 3M Innovative Properties Co
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Filing: 1995-05-05
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Granted: 1997-07-22
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Expires: 2015-05-05
Abstract
Abstract The invention provides pressure-sensitive adhesive (PSA) coated articles, including tapes and transfer coatings, having microstructured surfaces and methods of making pressure-sensitive adhesive articles bearing such microstructured surfaces. The performance properties of the pressure-sensitive adhesive articles can be tailored by independently varying the microstructure and the rheological properties of the pressure-sensitive adhesive.
Inventors
- 👤 Mieczyslaw H. Mazurek
- 👤 Robert K. Galkiewicz
- 👤 Gerald M. Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:45
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; B29C59/046; B29C43/00; B29C43/22; B29C43/222; B29C43/28; C; C09; C09J; C09J7/00; C09J7/10; C09J7/30; C09J7/38; C09J7/381; C09J2301/00; C09J2301/20; C09J2301/204; C09J2433/00; C09J2453/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
115 words
A coated substrate comprising a substrate coated on at least one side with a continuous layer of an untilled pressure-sensitive adhesive, the pressure-sensitive adhesive having a microstructured surface, wherein the microstructured surface of the pressure-sensitive adhesive comprises a series of features and wherein the lateral aspect ratio of the features range from about 0.1 to about 10; wherein at least two of three dimensions of each feature selected from the group consisting of (i) length, (ii) width, and (iii) depth or height, are microscopic, wherein "microscopic" refers to features of small enough dimension so as to require an optic aid to the naked eye when viewed from any plane of view to determine its shape.
Claim 2
Dependent Claim
115 words
A coated substrate comprising a substrate coated on at least one side with a continuous layer of an untilled pressure-sensitive adhesive, the pressure-sensitive adhesive having a microstructured surface, wherein the microstructured surface of the pressure-sensitive adhesive comprises a series of features and wherein the lateral aspect ratio of the features range from about 0.1 to about 10; wherein at least two of three dimensions of each feature selected from the group consisting of (i) length, (ii) width, and (iii) depth or height, are microscopic, wherein "microscopic" refers to features of small enough dimension so as to require an optic aid to the naked eye when viewed from any plane of view to determine its shape.
Claim 3
Dependent Claim
26 words
The coated substrate of claim 1 wherein each of the features has a shape selected from the group consisting of hemispheres, prisms, pyramids, ellipses, and grooves.
Claim 4
Dependent Claim
20 words
The coated substrate of claim 1 wherein the substrate is selected from the group consisting of backings and release liners.
Claim 5
Dependent Claim
21 words
The coated substrate of claim 1 wherein the lateral aspect ratio of the features range from about 0.2 to about 5.
Claim 6
Dependent Claim
21 words
The coated substrate of claim 1 wherein the spacing aspect ratio of the features range from about 1 to about 1.9.
Claim 7
Dependent Claim
21 words
The coated substrate of claim 1 wherein the spacing aspect ratio of the features ranges from about 1 to about 1.5.
Claim 8
Dependent Claim
21 words
The coated substrate of claim 1 wherein the spacing aspect ratio of the features ranges from about 1 to about 1.1.
Claim 9
Dependent Claim
16 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive comprises a thermoplastic block copolymer adhesive.
Claim 10
Dependent Claim
25 words
The coated substrate of claim 8 wherein the thermoplastic block copolymer adhesive is selected from the group consisting of styrene-isoprene-styrene, styrene-butadiene-styrene, and styrene-ethylene/butylene-styrene block copolymers.
Claim 11
Dependent Claim
30 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive comprises an acrylic polymeric pressure-sensitive adhesive modified with a polymeric segment(s) having glass transition temperature(s) higher than about 20° C.
Claim 12
Dependent Claim
38 words
The coated substrate of claim 1 wherein said backing is selected from the group consisting of poly(propylene), poly(ethylene), poly(vinyl chloride), polyester, polyamide, cellulose acetate, ethyl cellulose, woven fabric, nonwoven fabric, metal, metallized polymeric film, and ceramic sheet materials.
Claim 13
Dependent Claim
19 words
The coated substrate of claim 1 wherein each feature has a height of about 2.5 to about 375 micrometers.
Claim 14
Dependent Claim
19 words
The coated substrate of claim 1 wherein each feature has a height of about 25 to about 250 micrometers.
Claim 15
Dependent Claim
19 words
The coated substrate of claim 1 wherein each feature has a height of about 25 to about 125 micrometers.
Claim 16
Dependent Claim
20 words
The coated substrate of claim 1 wherein dimensions of length, width, and depth or height of each feature are microscopic.
Claim 17
Dependent Claim
17 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive comprises a radiation curable acrylate pressure-sensitive adhesive.
Claim 18
Dependent Claim
15 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive is a temporarily repositionable adhesive.
Claim 19
Dependent Claim
15 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive is a permanently repositionable adhesive.
Claim 20
Dependent Claim
14 words
The coated substrate of claim 1 wherein the pressure-sensitive adhesive is a self-debonding adhesive.
Claim 21
Dependent Claim
34 words
The coated substrate of claim 1 where the pressure-sensitive adhesive is selected from the group consisting of organic solvent based acrylics, waterborne acrylics, silicone adhesives, natural rubber based adhesives, and thermoplastic resin based adhesives.
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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) | 2000-07-21 | 2001-01-20 | 2001-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-21 | 2005-01-20 | 2005-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-21 | 2009-01-20 | 2009-07-22 | $7700.00 | Window Closed / Lapsed |