US4888075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite facestocks and liners
Assignee: Avery Dennison Corp
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Filing: 1987-08-24
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Granted: 1989-12-19
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Expires: 2007-08-24
Abstract
Abstract Film-forming means are coextruded to form all plastic multilayer liners and facestocks for pressure-sensitive labels, tapes, decals, signs, bumper stickers, and other products formed from sheet and roll stock. Fill means in a charge for the liner coextrusion affects stiffness and dimensional stability of the liner and/or affects the roughness of a liner face or faces. The film materials of the layers of the constructions are selected according to the cost/benefit characteristics of candidate materials considering the functional or operational requirements of the layer in question.
Inventors
- 👤 Melvin S. Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:14
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/20; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C09J7/241; C09J7/243; C09J7/245; C09J7/29; B29; B29K; B29K2995/00; B29K2995/0037; B29K2995/0072; B29K2995/0081; C09J2203/00; C09J2203/334; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; C09J2301/30; C09J2301/302; C09J2423/00; C09J2423/006; C09J2427/00; C09J2427/006; C09J2431/00; C09J2431/006; G09F2003/0202; G09F2003/0208; G09F2003/021; G09F2003/023; G09F2003/0233; G09F2003/0241; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/1452; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
164 words
A method of economically manufacturing roll or sheet facestock for labels, tapes, or signs, comprising the steps of providing a plurality of at least two charges of film-forming resin, coextruding said charges to thereby form a construction in the form of a multilayer extrudate comprising a relatively thick core layer and at least one relatively thin skin layer, the former layer providing the majority of the dimensional stability and stiffness of the construction, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide a degree of stiffness suitable for the label or sign application, preselecting the charge for said skin layer to provide a skin adapted to the intended decorating process or surface performance characteristics of the facestock, and combining said extrudate with a pressure-sensitive adhesive layer to form facestock suitable for cutting into labels, tapes or signs, said step of combining with adhesive occurring in the absence of any preceding step of biaxially stretching said extrudate.
Claim 2
Independent Claim
164 words
A method of economically manufacturing roll or sheet facestock for labels, tapes, or signs, comprising the steps of providing a plurality of at least two charges of film-forming resin, coextruding said charges to thereby form a construction in the form of a multilayer extrudate comprising a relatively thick core layer and at least one relatively thin skin layer, the former layer providing the majority of the dimensional stability and stiffness of the construction, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide a degree of stiffness suitable for the label or sign application, preselecting the charge for said skin layer to provide a skin adapted to the intended decorating process or surface performance characteristics of the facestock, and combining said extrudate with a pressure-sensitive adhesive layer to form facestock suitable for cutting into labels, tapes or signs, said step of combining with adhesive occurring in the absence of any preceding step of biaxially stretching said extrudate.
Claim 3
Dependent Claim
27 words
A method as in claim 1, in which said combining step comprises applying said adhesive layer onto said extrudate by transfer coating following said step of coextruding.
Claim 4
Dependent Claim
22 words
A method as in claim 2, including in said coextruding of relatively thin skin layers on each side of said core layer.
Claim 5
Dependent Claim
21 words
A method as in claim 1, in which said combining step comprises coextruding said adhesive layer simultaneously with said other layers.
Claim 6
Dependent Claim
28 words
A method as in claim 1, including in said coextruding step the coextruding of a tie layer between said core layer and said at least one skin layer.
Claim 7
Dependent Claim
23 words
A method as in claim 1, said core layer comprising polyethylene film and said at least one skin layer comprising polyvinyl chloride film.
Claim 8
Dependent Claim
24 words
A method as in claim 1, said core layer comprising polyethylene film and said at least one skin layer comprising polyethylene vinyl acetate film.
Claim 9
Dependent Claim
26 words
A method as in claim 1, in which said combining step comprises applying said adhesive layer onto said extrudate by direct application following said step coextruding.
Claim 10
Dependent Claim
25 words
A method as in claim 8, including in said coextruding step the coextruding of relatively thin skin layers on each side of said core layer.
Claim 11
Dependent Claim
19 words
A method as in claim 9, said core layer comprising polyethylene film and said skin layer comprising polyvinylchloride film.
Claim 12
Independent Claim
114 words
A method of economically manufacturing an all-plastic stock for use by manufacturers of adhesive labels, tapes, or signs comprising the steps of coextruding a liner comprising multiple layers of film-forming resin, combining release means at a release face of said liner coextrudate, also coextruding facestock comprising multiple layer film-forming resins, temporarily joining said liner coextrudate and facestock coextrudate with a layer of pressure-sensitive adhesive which is releasably joined to said release face of said liner coextrudate and permanently to the inner face of said facestock coextrudate, and cutting said stock into labels, tapes or signs, said step of cutting occurring in the absence of any preceding step of biaxially stretching any of said coextrudates.
Claim 13
Independent Claim
114 words
A method of economically manufacturing an all-plastic stock for use by manufacturers of adhesive labels, tapes, or signs comprising the steps of coextruding a liner comprising multiple layers of film-forming resin, combining release means at a release face of said liner coextrudate, also coextruding facestock comprising multiple layer film-forming resins, temporarily joining said liner coextrudate and facestock coextrudate with a layer of pressure-sensitive adhesive which is releasably joined to said release face of said liner coextrudate and permanently to the inner face of said facestock coextrudate, and cutting said stock into labels, tapes or signs, said step of cutting occurring in the absence of any preceding step of biaxially stretching any of said coextrudates.
Claim 14
Independent Claim
152 words
A method of economically manufacturing roll or sheet facestock for labels, tapes, or signs, comprising the steps of providing a plurality of at least two charges of film-forming resin at least one of which is non-olefinic, coextruding said charges to thereby form a construction in the form of a multilayer extrudate comprising a relatively thick core layer and at least one relatively thin skin layer, the former layer providing the majority of the dimensional stability and stiffness of the construction, preselecting the charge for said core layer, as by selection of density of flex modulus, to provide a degree of stiffness suitable for the label or sign application, preselecting the charge for said skin layer to provide a skin adapted to the intended decorating process or surface performance characteristics of the facestock, and combining said extrudate with a pressure-sensitive adhesive layer to form facestock suitable for cutting into labels, tapes, or signs.
Claim 15
Independent Claim
152 words
A method of economically manufacturing roll or sheet facestock for labels, tapes, or signs, comprising the steps of providing a plurality of at least two charges of film-forming resin at least one of which is non-olefinic, coextruding said charges to thereby form a construction in the form of a multilayer extrudate comprising a relatively thick core layer and at least one relatively thin skin layer, the former layer providing the majority of the dimensional stability and stiffness of the construction, preselecting the charge for said core layer, as by selection of density of flex modulus, to provide a degree of stiffness suitable for the label or sign application, preselecting the charge for said skin layer to provide a skin adapted to the intended decorating process or surface performance characteristics of the facestock, and combining said extrudate with a pressure-sensitive adhesive layer to form facestock suitable for cutting into labels, tapes, or signs.
Claim 16
Dependent Claim
32 words
A method as in claim 12 in which said step of preselecting a charge for said core layer is accompanied by the selection of a non-olefinic film-forming resin for said core layer.
Claim 17
Dependent Claim
43 words
A method as in claim 1 in which at least one of said steps of preselecting the charge for said core layer and preselecting the charge for said skin layer is accompanied by the selection of a non-olefinic film-forming resin for the layer.
Claim 18
Dependent Claim
32 words
A method as in claim 12 in which said step of preselecting a charge for said skin layer is accompanied by the selection of a non-olefinic film-forming resin for said skin layer.
Claim 19
Dependent Claim
57 words
A method as in claim 15 in which said step of selecting a non-olefinic film-forming resin for said skin layer comprises the selection of polyvinyl chloride as a film-forming resin for the layer and said step of selecting a charge for said core layer is accompanied by the selection of an olefinic film-forming resin for the layer.
Claim 20
Dependent Claim
58 words
A method as in claim 15 in which said step of selecting a non-olefinic film-forming resin for said skin layer comprises the selection of polyethylene vinyl acetate as the film-forming resin for the layer and said step of selecting a charge for said core layer is accompanied by the selection of an olefinic film-forming resin for the layer.
Claim 21
Dependent Claim
40 words
A method as in claim 12 in which said steps of preselecting the charge for said core layer and preselecting the charge for said skin layer each is accompanied by the selection of a non-olefinic film-forming resin for the layer.
Claim 22
Dependent Claim
33 words
A method as in claim 18 in which said step of selecting a non-olefinic film-forming resin for said skin layer comprises the selection of a fluoroplastic as a film-forming resin for the layer.
References Cited (Backward Citations)
US3968196A
Cited
US4051293A
Cited
US4100237A
Cited
US4118438A
Cited
US4379806A
Cited
US4410582A
Cited
US4377050A
Cited
US4517044A
Cited
JPS58113283A
Cited
US4377616A
Cited
US4544590A
Cited
JPS59122570A
Cited
US4529654A
Cited
US4582736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-18 | 1993-06-19 | 1993-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-18 | 1997-06-19 | 1997-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-18 | 2001-06-19 | 2001-12-19 | $7700.00 | Window Closed / Lapsed |