US4740416A
Expired / Lapsed
US
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Novel adhesive tapes
Assignee: Kendall Co
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Filing: 1987-07-24
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Granted: 1988-04-26
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Expires: 2007-07-24
Abstract
Abstract Novel adhesive tapes consisting essentially of, in order, (1) a layer comprising glass or resin microspheres dispersed in a polymeric matrix; (2) a cloth scrim or reinforcing fabric; and (3) a layer of adhesive, preferably a pressure-sensitive adhesive.
Inventors
- 👤 Leonard D. DeCoste, Jr.
- 👤 Abboud L. Mamish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:48
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; C09J2400/00; C09J2400/20; C09J2400/24; C09J2400/243; C09J2400/26; C09J2400/263; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/249974; Y10T428/249982; Y10T428/249983; Y10T428/249984; Y10T428/25; Y10T428/252; Y10T428/254; Y10T428/28; Y10T428/2848; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/172; Y10T442/174; Y10T442/176; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2107; Y10T442/2738; Y10T442/2754
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
46 words
In an adhesive tape comprising an adhesive layer coated onto a backing comprising a cloth material and an outer layer of a polymeric material, the improvement wherein said outer layer comprises a continuous matrix of said polymeric material having microspheres dispersed therein as a discontinuous phase.
Claim 2
Dependent Claim
46 words
In an adhesive tape comprising an adhesive layer coated onto a backing comprising a cloth material and an outer layer of a polymeric material, the improvement wherein said outer layer comprises a continuous matrix of said polymeric material having microspheres dispersed therein as a discontinuous phase.
Claim 3
Dependent Claim
13 words
An adhesive tape as defined in claim 1 wherein said microspheres are glass.
Claim 4
Dependent Claim
25 words
An adhesive tape as defined in claim 1 wherein said microspheres have a diameter in the range of from about 0.1 to about 300 microns.
Claim 5
Dependent Claim
24 words
An adhesive tape as defined in claim 1 wherein said microspheres have a density of from about 0.036 to 2.6 grams per square centimeter.
Claim 6
Dependent Claim
32 words
An adhesive tape as defined in claim 1 wherein the ratio by weight of said microspheres in said discontinuous phase to said polymeric matrix material is from about 1:20 to about 1:5.
Claim 7
Dependent Claim
15 words
An adhesive tape as defined in claim 1 wherein said polymeric material comprises a polyolefin.
Claim 8
Dependent Claim
13 words
An adhesive tape as defined in claim 6 wherein said polyolefin is polyethylene.
Claim 9
Dependent Claim
18 words
An adhesive tape as defined in claim 1 wherein said outer layer is no thicker than 9 mils.
Claim 10
Dependent Claim
16 words
An adhesive tape as defined in claim 1 wherein said adhesive layer comprises a pressure-sensitive adhesive.
Claim 11
Dependent Claim
71 words
In an adhesive tape comprising a backing layer carrying a cloth material and a layer of a pressure-sensitive adhesive on one side thereof: the improvement wherein said backing layer comprises a polyethylene matrix no thicker than 9 mils having dispersed therein a plurality of microspheres having a diameter of from about 0.1 to about 30 microns, the ratio of said microspheres to said polyethylene being from about 1:20 to about 1:5
Claim 12
Dependent Claim
71 words
In an adhesive tape comprising a backing layer carrying a cloth material and a layer of a pressure-sensitive adhesive on one side thereof: the improvement wherein said backing layer comprises a polyethylene matrix no thicker than 9 mils having dispersed therein a plurality of microspheres having a diameter of from about 0.1 to about 30 microns, the ratio of said microspheres to said polyethylene being from about 1:20 to about 1:5
Claim 13
Dependent Claim
21 words
An adhesive tape as defined in claim 10 wherein said microspheres have a diameter from about 1 to about 5 microns.
Claim 14
Dependent Claim
13 words
An adhesive tape as defined in claim 10 wherein said microspheres are glass.
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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) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |