US5372669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite facestocks and liners
Assignee: Avery Dennison Corp
•
Filing: 1993-04-15
•
Granted: 1994-12-13
•
Expires: 2013-04-15
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
2026-10-28 10:39
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/20; B32B27/32; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C09J7/241; C09J7/243; C09J7/245; G; G09; G09F; G09F3/00; G09F3/02; B29; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/18; B29C48/19; 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; G09F2003/0257; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1052; Y10T156/108; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/1462; Y10T428/1476; Y10T428/1486; Y10T428/149; Y10T428/1495; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/28; Y10T428/2839; Y10T428/2848; Y10T428/31; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
A method of economically manufacturing die-cut labels using roll or sheet facestock, 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, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide said facestock with a degree of stiffness suitable for the label 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 label facestock, combining said facestock with a liner, die-cutting said facestock to form a label releasably adhered to said liner and surrounded by a matrix of excess facestock material, and stripping said matrix of excess facestock material to utilize non-tearing self-supporting properties of said material to pull said matrix away from the die-cut label.
Claim 2
Independent Claim
174 words
A method of economically manufacturing die-cut labels using roll or sheet facestock, 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, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide said facestock with a degree of stiffness suitable for the label 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 label facestock, combining said facestock with a liner, die-cutting said facestock to form a label releasably adhered to said liner and surrounded by a matrix of excess facestock material, and stripping said matrix of excess facestock material to utilize non-tearing self-supporting properties of said material to pull said matrix away from the die-cut label.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein the method of preselecting the charge for said core layer also includes providing said facestock with sufficient body and strength for the label application.
Claim 4
Dependent Claim
23 words
The method of claim 1, wherein the step of preselecting the charge for said core layer includes preselecting a polyolefin polymer or copolymer.
Claim 5
Dependent Claim
22 words
The method of claim 3, wherein said core layer comprises a polyethylene layer of a specific gravity of from 0.890 to 0.965.
Claim 6
Dependent Claim
27 words
The method of claim 3, wherein said core layer comprises a polypropylene layer with a flex modulus range of from 130,000 to 250,000 psi at 73° F.
Claim 7
Dependent Claim
32 words
The method of claim 1, in which said die-cutting of said facestock following said coextruding step is performed in the absence of any intervening step of biaxial stretching of said multilayer coextrudate.
Claim 8
Dependent Claim
12 words
The method of claim 1, including the step of hot-stretching said extrudate.
Claim 9
Dependent Claim
25 words
The method of claim 1, wherein the step of preselecting the charge for said core layer also includes providing said facestock with an opaque appearance.
Claim 10
Dependent Claim
33 words
The method of claim 1, wherein the steps of preselecting the charges for said core and skin layers also include selecting the charges to tightly adhere the layers together to form said construction.
Claim 11
Dependent Claim
24 words
The method according to claim 1, wherein said skin layer comprises ethylene-vinyl acetate and said core layer comprises polyethylene, polypropylene or a polypropylene copolymer.
Claim 12
Independent Claim
180 words
A method of economically manufacturing die-cut labels using roll or sheet facestock, 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, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide said facestock with a suitable degree of stiffness and sufficient body and strength for the label 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, hot-stretching and combining said extrudate with a pressure-sensitive adhesive layer to form label facestock, combining said facestock with a liner, die-cutting said facestock to form a label, releasably adhered to said liner and surrounded by a matrix of excess facestock material, and stripping said matrix of excess facestock material to utilize non-tearing self-supporting properties of said material to pull said matrix away from the die-cut label.
Claim 13
Independent Claim
180 words
A method of economically manufacturing die-cut labels using roll or sheet facestock, 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, preselecting the charge for said core layer, as by selection of density or flex modulus, to provide said facestock with a suitable degree of stiffness and sufficient body and strength for the label 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, hot-stretching and combining said extrudate with a pressure-sensitive adhesive layer to form label facestock, combining said facestock with a liner, die-cutting said facestock to form a label, releasably adhered to said liner and surrounded by a matrix of excess facestock material, and stripping said matrix of excess facestock material to utilize non-tearing self-supporting properties of said material to pull said matrix away from the die-cut label.
References Cited (Backward Citations)
CA888148A
Cited
US2718666A
Cited
US2920352A
Cited
US3036945A
Cited
US3100722A
Cited
US3154461A
Cited
US3187982A
Cited
US3011358A
Cited
US3354506A
Cited
US3370951A
Cited
US3468744A
Cited
US3515626A
Cited
US3382206A
Cited
US3841943A
Cited
US3690909A
Cited
US3924051A
Cited
US3968196A
Cited
US4051293A
Cited
GB1404018A
Cited
US3963851A
Cited
GB1384556A
Cited
US4057667A
Cited
US3871947A
Cited
US3894904A
Cited
US4082880A
Cited
US3936567A
Cited
US3908065A
Cited
US4091150A
Cited
US3979000A
Cited
US4069934A
Cited
US4100237A
Cited
US4020215A
Cited
US4331727A
Cited
US4118438A
Cited
US4008115A
Cited
US4233367A
Cited
GB1578517A
Cited
US4242402A
Cited
US4172163A
Cited
US4188443A
Cited
US4235341A
Cited
CH633481A5
Cited
US4254169A
Cited
US4246058A
Cited
US4379806A
Cited
US4464443A
Cited
US4425410A
Cited
US4407897A
Cited
US4398985A
Cited
CA1138817A
Cited
US4429015A
Cited
US4343851A
Cited
US4393115A
Cited
US4346855A
Cited
US4380567A
Cited
US4410582A
Cited
US4402172A
Cited
US4361628A
Cited
US4389450A
Cited
EP0060421A1
Cited
US4472227A
Cited
US4377050A
Cited
US4405401A
Cited
US4517044A
Cited
JPS58113283A
Cited
US4377616A
Cited
US4386135A
Cited
US4463861A
Cited
US4568403A
Cited
US4544590A
Cited
US4513050A
Cited
US4525416A
Cited
US4424256A
Cited
US4528055A
Cited
JPS59122570A
Cited
US4529654A
Cited
US4522887A
Cited
US4438175A
Cited
US4780364A
Cited
US4650721A
Cited
US4617241A
Cited
US4551380A
Cited
DE3422302A1
Cited
US4673611A
Cited
US4581262A
Cited
US4585679A
Cited
US4626455A
Cited
DE3501726A1
Cited
US4716068A
Cited
US4724186A
Cited
US4680234A
Cited
US4582752A
Cited
US4702954A
Cited
US4626460A
Cited
US4582753A
Cited
US4582736A
Cited
US5151309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-12 | 1998-06-13 | 1998-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-12 | 2002-06-13 | 2002-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-12 | 2006-06-13 | 2006-12-13 | $7700.00 | Window Closed / Lapsed |