US4230753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive composite article
Assignee: Akzo America Inc
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Filing: 1978-07-07
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Granted: 1980-10-28
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Expires: 1998-07-07
Abstract
Abstract A pressure sensitive composite article, which is useful, for example, as an exterior roofing material for a motor vehicle, is disclosed. It comprises a heat bondable plastic film which is attached to a backing material having a substantially continuous coating of a pressure sensitive adhesive on its opposite side thereof, and a polymeric release liner on the exposed side of the adhesive. The release liner has a melting point below the temperature at which the plastic film is permanently heat deformable.
Inventors
- 👤 Gregory M. Sheyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:21
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; C09J2400/00; C09J2400/20; C09J2400/26; C09J2400/263; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24992; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/28; Y10T428/2839; Y10T428/2852; Y10T428/287; Y10T428/2878; Y10T428/2891; Y10T428/2896; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2738; Y10T442/2754; Y10T442/60; Y10T442/647
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
91 words
A pressure sensitive, composite article which comprises: (a) a heat bondable plastic film; (b) a backing attached to the film on one side thereof; (c) a substantially continuous and uniform layer of a pressure sensitive adhesive bonded to the side of the backing which is opposite the plastic film; and (d) a polymeric release liner attached to the adhesive layer opposite the side of said layer which is bonded to the backing, the liner having a melting point which is below the temperature at which the plastic film is heat bondable.
Claim 2
Dependent Claim
91 words
A pressure sensitive, composite article which comprises: (a) a heat bondable plastic film; (b) a backing attached to the film on one side thereof; (c) a substantially continuous and uniform layer of a pressure sensitive adhesive bonded to the side of the backing which is opposite the plastic film; and (d) a polymeric release liner attached to the adhesive layer opposite the side of said layer which is bonded to the backing, the liner having a melting point which is below the temperature at which the plastic film is heat bondable.
Claim 3
Dependent Claim
15 words
A product as claimed in claim 1 wherein the film is a vinyl chloride polymer.
Claim 4
Dependent Claim
21 words
A product is claimed in claim 1 wherein the film has a thickness of from about 5 mils to 25 mils.
Claim 5
Dependent Claim
20 words
A product as claimed in claim 1 wherein the film is attached to the backing by a layer of adhesive.
Claim 6
Dependent Claim
14 words
A product as claimed in claim 4 wherein the adhesive is a plastisol adhesive.
Claim 7
Dependent Claim
14 words
A product as claimed in claim 1 wherein the backing is a non-woven fabric.
Claim 8
Dependent Claim
16 words
A product as claimed in claim 6 wherein the non-woven fabric also comprises a foam layer.
Claim 9
Dependent Claim
23 words
A product as claimed in claim 1 wherein the weight of the backing ranges from about 2 to about 20 oz/yd 2 .
Claim 10
Dependent Claim
23 words
A product as claimed in claim 1 wherein the density of the backing ranges from about 2 to about 20 lbs/ft 3 .
Claim 11
Dependent Claim
18 words
A product as claimed in claim 1 wherein the pressure sensitive adhesive is an acrylic pressure sensitive adhesive.
Claim 12
Dependent Claim
23 words
A product as claimed in claim 1 wherein the adhesive layer has a thickness of from about 0.5 mil to about 10 mils.
Claim 13
Dependent Claim
35 words
A product as claimed in claim 1 wherein the backing has a weight of from about 2 to about 20 oz/yd 2 and a density of from about 2 to about 20 lbs/ft 3 .
Claim 14
Dependent Claim
30 words
A product as claimed in claim 1 wherein the backing has been treated with a compound selected from the group consisting of a water repellent agent and a corrosion inhibitor.
Claim 15
Dependent Claim
23 words
A product as claimed in claim 1 wherein the thickness of the film and backing ranges from about 20 to about 200 mils.
Claim 16
Dependent Claim
40 words
A product as claimed in claim 1 wherein the polymeric release liner is selected from the group consisting of a polyolefinic polymer, an ethylene/vinyl acetate copolymer, an ethylene/acrylic copolymer, a polyethylene/chlorinated polyethylene blend and a low density polyethylene/ethylene-vinyl acetate blend.
Claim 17
Dependent Claim
31 words
A product as claimed in claim 1 wherein the plastic film is a vinyl chloride polymer and the release liner has a melting point of no higher than about 188° F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |