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US5288548A
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US
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Label face stock
Assignee: Mobil Oil AS
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Filing: 1992-07-31
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Granted: 1994-02-22
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Expires: 2012-07-31
Abstract
Abstract A multilayer label stock structure comprising a label stock of polypropylene film having on one side thereof a highly printable blend of (A) alkylene acrylate copolymer and (B) an interpolymer of an alkyl acrylate, an alkyl methacrylate and an alkyl acrylate acid.
Inventors
- 👤 Ralph J. Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:46
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/20; B32B27/30; B32B27/308; B32B27/32; B32B3/00; B32B3/26; B32B7/00; B32B7/04; B32B7/06; B32B7/12; C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; B32B2270/00; B32B2307/00; B32B2307/50; B32B2307/514; B32B2323/00; B32B2323/04; B32B2323/10; B32B2519/00; C09J2203/00; C09J2203/334; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; C09J2423/00; C09J2423/006; C09J2433/00; C09J2433/006; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/249979; Y10T428/24998; Y10T428/28; Y10T428/2848; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31928; Y10T428/31938; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3886; Y10T442/60; Y10T442/674; Y10T442/678
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A multilayer label film comprising a base structure comprising an oriented polypropylene film having on one side thereof a blend of (A) one or more alkylene acrylate copolymer of a C 2-6 monoolefin and a C 1-8 alkyl (meth) acrylate, and (B) and interpolymer of (a) from 2.5 to about 6 parts by weight of an alpha-beta monoethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof and (b) from about 97.5 to about 94 parts by weight of neutral monomer ester, said neutral monomer esters comprising (1) methyl acrylate or ethyl acrylate and (2) methyl methacrylate, said interpolymer comprising from about 30% to about 55% by weight of methyl methacrylate when the acrylate is methyl acrylate, and from about 52.5% to 69% by weight of methyl methacrylate when the acrylate is ethyl acrylate; said mixture containing inert inorganic fillers; and on the other side thereof an adhesive layer.
Claim 2
Dependent Claim
156 words
A multilayer label film comprising a base structure comprising an oriented polypropylene film having on one side thereof a blend of (A) one or more alkylene acrylate copolymer of a C 2-6 monoolefin and a C 1-8 alkyl (meth) acrylate, and (B) and interpolymer of (a) from 2.5 to about 6 parts by weight of an alpha-beta monoethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof and (b) from about 97.5 to about 94 parts by weight of neutral monomer ester, said neutral monomer esters comprising (1) methyl acrylate or ethyl acrylate and (2) methyl methacrylate, said interpolymer comprising from about 30% to about 55% by weight of methyl methacrylate when the acrylate is methyl acrylate, and from about 52.5% to 69% by weight of methyl methacrylate when the acrylate is ethyl acrylate; said mixture containing inert inorganic fillers; and on the other side thereof an adhesive layer.
Claim 3
Dependent Claim
14 words
The label film of claim 1 wherein said base structure is transparent or opaque.
Claim 4
Dependent Claim
14 words
The film of claim 2 wherein said base structure is a multilayer coextruded structure.
Claim 5
Dependent Claim
25 words
The film of claim 3 wherein said structure has a comparatively thick layer and a comparatively thin skin layer on at least one side thereof.
Claim 6
Dependent Claim
26 words
The film of claim 4 wherein said structure is an opaque structure having a cavitated core layer with comparatively thin skin layers on opposite sides thereof.
Claim 7
Dependent Claim
13 words
The film of claim 5 wherein said skin layers contain inorganic filler material.
Claim 8
Dependent Claim
44 words
The film of claim 6 wherein one skin layer is of a medium density polyethylene containing an inorganic filler and this skin layer has the blend of (A) and (B) applied thereto; and the other skin layer is polypropylene with an inorganic filler therein.
Claim 9
Dependent Claim
33 words
The film of claim 7 wherein said alkylene acrylate copolymer (a) is a member selected from the group consisting of ethylene acrylic acid, ethylene methylacrylate, ethylene-ethylacrylate, ethylene butylacrylate, ethylene propylacrylate and mixtures thereof.
Claim 10
Dependent Claim
34 words
The film of claim 8 wherein said blend ranges from 70-95% by weight of (A) to from 5-30% by weight of (B) and said blend contains from 30-60% by weight of said inert fillers.
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) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |