US4626460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coextruded pressure sensitive label stock material with integral peelable backing
Assignee: Mobil Oil AS
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Filing: 1985-12-30
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Granted: 1986-12-02
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Expires: 2005-12-30
Abstract
Abstract A biaxially oriented label stock product of which comprises: (a) a facing layer in the form of a polyolefin film having an upper surface and a lower surface, a pressure sensitive adhesive component incorporated within said facing layer or applied as a coating to the lower surface thereof; and, (b) a release layer in the form of a polyolefin film having an upper surface and a lower surface and having a release agent component for the pressure sensitive adhesive component of facing layer (a) incorporated therein or applied as a coating to the upper surface thereof, the lower surface of facing layer (a) being peelably affixed to the upper surface of said release layer (b).
Inventors
- 👤 Gary L. Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:03
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B29C48/03; B29C48/07; B29C48/08; B29C55/00; B29L; B29L2009/00; B29L2009/001; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/1457; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249978; Y10T428/249982; Y10T428/249983; Y10T428/249986; Y10T428/25; Y10T428/28; Y10T428/2839; Y10T428/2848
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
115 words
A biaxially oriented label stock product of which comprises: (a) a facing layer in the form of a polyolefin film having an upper surface and a lower surface, a pressure sensitive adhesive component incorporated within said facing layer or applied as a coating to the lower surface thereof; and, (b) a release layer in the form of a polyolefin film having an upper surface and a lower surface and having a release agent component for the pressure sensitive adhesive component of facing layer (a) incorporated therein or applied as a coating to the upper surface thereof, the lower surface of facing layer (a) being peelably affixed to the upper surface of said release layer (b).
Claim 2
Dependent Claim
115 words
A biaxially oriented label stock product of which comprises: (a) a facing layer in the form of a polyolefin film having an upper surface and a lower surface, a pressure sensitive adhesive component incorporated within said facing layer or applied as a coating to the lower surface thereof; and, (b) a release layer in the form of a polyolefin film having an upper surface and a lower surface and having a release agent component for the pressure sensitive adhesive component of facing layer (a) incorporated therein or applied as a coating to the upper surface thereof, the lower surface of facing layer (a) being peelably affixed to the upper surface of said release layer (b).
Claim 3
Dependent Claim
18 words
The label stock product of claim 1 wherein facing layer (a) is a single layer of polyproplene film.
Claim 4
Dependent Claim
14 words
The label stock product of claim 1 wherein facing layer (a) is a laminate.
Claim 5
Dependent Claim
128 words
The label stock product of claim 3 wherein the laminate of facing layer (a) comprises: (i) a thermoplastic matrix substrate layer having an upper and lower surface, a pressure sensitive adhesive component incorporated within said substrate layer and a strata of voids located within said substrate layer; positioned at least substantially within at least a substantial number of said voids is at least one spherical void-initiating particle which is phase distinct and incompatible with the matrix material, the void space occupied by said particle being substantially less than the volume of said void, with one generally cross-sectional dimension of said particle at least approximating a corresponding cross-sectional dimension of said void; and, (ii) a void-free thermoplastic skin layer affixed to the upper surface of substrate layer (a) (i).
Claim 6
Dependent Claim
15 words
The label stock product of claim 4 wherein the void-initiating particle is an inorganic material.
Claim 7
Dependent Claim
15 words
The label stock product of claim 4 wherein the void-initiating particle is an organic material.
Claim 8
Dependent Claim
14 words
The label stock product of claim 4 wherein the void-initiating particle is a polymer.
Claim 9
Dependent Claim
22 words
The label stock product of claim 4 wherein a skin layer (c) is affixed to the exposed surface of release layer (b).
Claim 10
Dependent Claim
14 words
The label stock product of claim 4 wherein said product is a coextruded structure.
Claim 11
Dependent Claim
14 words
The label stock product of claim 8 wherein said product is a coextruded structure.
Claim 12
Dependent Claim
21 words
The label stock product of claim 4 wherein substrate layer (a)(i) and skin layer (a)(ii) are fabricated from the same resin.
Claim 13
Dependent Claim
13 words
The label stock product of claim 11 wherein the resin is isotactic polypropylene.
Claim 14
Dependent Claim
24 words
The label stock product of claim 4 wherein substrate layer (a)(i), skin layer (a)(ii) and release layer (b) are fabricated from the same resin.
Claim 15
Dependent Claim
27 words
The label stock product of claim 8 wherein substrate layer (a)(i), skin layer (a)(ii), release layer (b) and skin layer (c) are fabricated from the same resin.
Claim 16
Dependent Claim
12 words
The label stock product of claim 13 wherein the resin is polypropylene.
Claim 17
Dependent Claim
12 words
The label stock product of claim 14 wherein the resin is polypropylene.
Claim 18
Dependent Claim
22 words
The label stock product of claim 4 wherein the pressure sensitive adhesive is disproportionately concentrated at the surfaces of substrate layer (a)(i).
Claim 19
Dependent Claim
21 words
The label stock product of claim 4 wherein the release agent is disproportionately concentrated at the surfaces of release layer (b).
Claim 20
Dependent Claim
36 words
The label stock product of claim 8 wherein the pressure sensitive adhesive is disproportionately concentrated at the surface of substrate layer (a)(i) and the release agent is disproportionately concentrated at the surface of release layer (b).
Claim 21
Dependent Claim
37 words
The label stock product of claim 4 wherein the pressure sensitive adhesive is a combination of a natural or synthetic rubber and a tacky or tackifying resin and the release agent is a silicone or modified silicone.
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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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |