US4795665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers having internal barrier layers
Assignee: Dow Chemical Co
•
Filing: 1987-06-17
•
Granted: 1989-01-03
•
Expires: 2007-06-17
Abstract
Abstract Containers for foods, juices and beverages containing essential oils or flavorings are comprised of a laminate structrue in which the inner surface of the container, in contact with the foods, juices or beverage, is a halopolymer, such as a vinylidene chloride polymer, which functions as a barrier layer to substantially restrict the passage or migration of the essential oils or flavorings.
Inventors
- 👤 Gerald M. Lancaster
- 👤 Morris S. Edmondson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:43
CPC Classifications
C; C09; C09J; C09J173/00; B; B29; B29C; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/1425; B29C65/1477; B29C65/148; B29C65/48; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B32; B32B; B32B27/00; B32B27/04; B32B27/06; B32B27/08; C08; C08G; C08G67/00; C08G67/02; C08J; C08J5/00; C08J5/12; C08J5/124; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/048; C08J7/052; B29C65/04; B29C65/4805; B29C65/481; B29C65/4815; B29C65/483; B29C65/4835; B29C66/432; B29C66/4326; B29C66/71; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/7394; B29K; B29K2001/00; B29K2001/08; B29K2001/12; B29K2001/18; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/08; B29K2023/083; B29K2027/00; B29K2027/12; B29K2027/18; B29K2031/00; B29K2031/04; B29K2033/00; B29K2033/04; B29K2069/00; B29K2105/00; B29K2105/0085; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B29L2031/7162; C08J2423/00; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1307; Y10T428/1334; Y10T428/1338; Y10T428/1341; Y10T428/1352; Y10T428/1355; Y10T428/1359; Y10T428/1362; Y10T428/1366; Y10T428/1379; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 55
Claim 1
Independent Claim
120 words
A container for enclosing foods, juices or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, and an adhesive layer between, and binding, said substrate and said barrier layer, said adhesive layer consisting essentially of a RF-heatable polymer of ethylene having carbon monoxide polymerized into the polymer chain, including those containing a minor amount of another copolymerizable olefin or vinyl compound EVACO, such adhesive layer having a solubility parameter in the range of about 8 to about 14, and said barrier layer comprising a chloropolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from foods, juices or beverages enclosed therein.
Claim 2
Dependent Claim
120 words
A container for enclosing foods, juices or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, and an adhesive layer between, and binding, said substrate and said barrier layer, said adhesive layer consisting essentially of a RF-heatable polymer of ethylene having carbon monoxide polymerized into the polymer chain, including those containing a minor amount of another copolymerizable olefin or vinyl compound EVACO, such adhesive layer having a solubility parameter in the range of about 8 to about 14, and said barrier layer comprising a chloropolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from foods, juices or beverages enclosed therein.
Claim 3
Dependent Claim
27 words
The container of claim 1 wherein the adhesive layer is a polymer or resin having a solubility parameter in the range of about 8.5 to about 13.
Claim 4
Dependent Claim
18 words
The container of claim 1 wherein the adhesive layer consists essentially of an ECO, EAACO, EMAACO, or EVACO.
Claim 5
Dependent Claim
35 words
The container of claim 1 wherein the adhesive layer has thereon a primer coat of a vinyl resin, a urethane resin, an acrylic resin, an epoxy resin, a polyamide, a polyester, polycarbonate, or polyethylene terephthalate.
Claim 6
Dependent Claim
20 words
The container of claim 1 wherein the adhesive layer is activated by heat or corona discharge to obtain enhanced adhesion.
Claim 7
Dependent Claim
33 words
The container of claim 1 wherein the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, including those containing a minor amount of at least one other copolymerizable olefin or vinyl compound.
Claim 8
Dependent Claim
23 words
The container of claim 1 wherein the chloropolymer comprises polyvinyl chloride, vinylidene chloride copolymer, or a copolymer of vinyl chloride and vinylidene chloride.
Claim 9
Dependent Claim
38 words
The container of claim 1 wherein the substrate is a material of the group comprising paper, paperboard, woven fabric, non-woven fabric, metal foil, metal mesh, plastic or resin sheet, plastic or resin mesh, and cellular plastic or resin.
Claim 10
Dependent Claim
12 words
The container of claim 1 wherein the substrate is paper or paperboard.
Claim 11
Dependent Claim
22 words
The container of claim 1 wherein there is an outer layer adhered to the substrate on the other side from the adhesive.
Claim 12
Dependent Claim
48 words
The container of claim 1 wherein there is an outer layer adhered to the substrate on the other side from the adhesive, said outer layer being a material selected from the group comprising thermoplastic polymers, thermoplastic resins, thermosetting polymers, thermosetting resins, metal foil, paint, lacquer, and printed sheets.
Claim 13
Dependent Claim
39 words
The container of claim 1 wherein there is an outer layer adhered to the substrate on the other side from the adhesive, said outer layer being a woven fabric, a non-woven fabric, a cellular plastic, or a cellular resin.
Claim 14
Dependent Claim
30 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer bonded on at least one of its surfaces to an auxiliary or filler layer.
Claim 15
Dependent Claim
34 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on at least one of its surfaces to an auxiliary or filler layer.
Claim 16
Dependent Claim
33 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of metal foil, bonded on at least one of its surfaces with an auxiliary or filler layer.
Claim 17
Dependent Claim
31 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on both of its surfaces to auxiliary or filler layers.
Claim 18
Dependent Claim
30 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of metal foil bonded on both of its surfaces to auxiliary or filler layers.
Claim 19
Dependent Claim
33 words
The container of claim 1 wherein the substrate comprises paper or paperboard, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, and the adhesive layer consists of ECO, EAACO, EMAACO, EVACO.
Claim 20
Dependent Claim
54 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on at least one of its surfaces to an auxiliary or filler layer, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, and the adhesive consists of ECO, EAACO, EVACO, EMAACO.
Claim 21
Dependent Claim
53 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on both of its surfaces to an auxiliary or filler layers, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, and the adhesive layer consists of ECO, EAACO, EMAACO, EVACO.
Claim 22
Dependent Claim
54 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of metal foil bonded on at least one of its surfaces to an auxiliary or filler layer, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, and the adhesive layer consists of ECO, EAACO, EMAACO, EVACO.
Claim 23
Dependent Claim
52 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of metal foil bonded on both of its surfaces to an auxiliary or filler layers, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, and the adhesive layer consists of ECO, EAACO, EMAACO, EVACO.
Claim 24
Dependent Claim
38 words
The container of claim 1 wherein the substrate comprises paper or paperboard, the chloropolymer comprises a vinylidene chloride polymer, and the adhesive consists of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 25
Dependent Claim
59 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on one or both of its surfaces to auxiliary or filler layers, the chloropolymer comprises a vinylidene chloride polymer, and the adhesive consists of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 26
Dependent Claim
58 words
The container of claim 1 wherein the substrate is a multi-layer laminate comprising a main layer of metal foil bonded on one or both of its surfaces to auxiliary or filler layers, the chloropolymer comprises a vinylidene chloride polymer, and the adhesive consists of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 27
Dependent Claim
153 words
A container for enclosing foods, juice or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, an adhesive layer between, and binding, said substrate and said barrier layer, and an outer layer on said substrate on the other side from the adhesive layer, said adhesive layer consisting essentially of a RF-heatable polymer of ethylene having carbon monoxide polymerized into the polymer chain, including those containing a minor amount of another copolymerizable olefin or vinyl compound such adhesive layer having a solubility parameter in the range of about 8 to about 14, said barrier layer comprising a chloropolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from juices or beverages enclosed therein, and said outer layer comprising a polymer or resin having a solubility parameter in the range of about 8 to about 14.
Claim 28
Dependent Claim
153 words
A container for enclosing foods, juice or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, an adhesive layer between, and binding, said substrate and said barrier layer, and an outer layer on said substrate on the other side from the adhesive layer, said adhesive layer consisting essentially of a RF-heatable polymer of ethylene having carbon monoxide polymerized into the polymer chain, including those containing a minor amount of another copolymerizable olefin or vinyl compound such adhesive layer having a solubility parameter in the range of about 8 to about 14, said barrier layer comprising a chloropolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from juices or beverages enclosed therein, and said outer layer comprising a polymer or resin having a solubility parameter in the range of about 8 to about 14.
Claim 29
Dependent Claim
27 words
The container of claim 26 wherein the adhesive layer and the outer layer each have a solubility paramater in the range of about 8.5 to about 13.
Claim 30
Dependent Claim
18 words
The container of claim 26 wherein the adhesive layer consists essentially of an ECO, EAACO, EMAACO or EVACO.
Claim 31
Dependent Claim
35 words
The container of claim 26 wherein the adhesive layer has thereon a primer coat of a vinyl resin, a urethane resin, an acrylic resin, an epoxy resin, a polyamide, a polyester, polycarbonate, or polyethylene terephthalate.
Claim 32
Dependent Claim
20 words
The container of claim 26 wherein the adhesive layer is activated by heat or corona discharge to obtain enhanced adhesion.
Claim 33
Dependent Claim
33 words
The container of claim 26 wherein the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, including those containing a minor amount of at least one other copolymerizable olefin or vinyl compound.
Claim 34
Dependent Claim
23 words
The container of claim 26 wherein the chloropolymer comprises polyvinyl chloride, vinylidene chloride copolymer, or a copolymer of vinyl chloride and vinylidene chloride.
Claim 35
Dependent Claim
38 words
The container of claim 26 wherein the substrate is a material of the group comprising paper, paperboard, woven fabric, non-woven fabric, metal foil, metal mesh, plastic or resin sheet, plastic or resin mesh, and cellular plastic or resin.
Claim 36
Dependent Claim
12 words
The container of claim 26 wherein the substrate is paper or paperboard.
Claim 37
Dependent Claim
43 words
The container of claim 26 wherein the said outer layer comprises a woven fabric, a nonwoven fabric, a cellular plastic, a cellular resin, a thermoplastic polymer, a thermoplastic resin, a thermosetting polymer, a thermosetting resin, a metal foil, paint, lacquer, or printed sheet.
Claim 38
Dependent Claim
29 words
The container of claim 26 wherein the substrate is a multi-layer laminate comprising a main layer bonded on one or both of its surfaces to auxiliary or filler layers.
Claim 39
Dependent Claim
61 words
The container of claim 26 wherein the substrate is paper or paperboard, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, the adhesive consists essentially of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain, and the outer layer comprises an RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 40
Dependent Claim
99 words
The container of claim 26 wherein the substrate is a multi-layer laminate comprising a main layer of paper or paperboard bonded on one or both of its surfaces to auxiliary or filler layer(s), the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, the adhesive consists essentially of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain, the auxiliary or filler layer(s) comprises thermoplastic polymer, thermosetting resin, woven fabric, non-woven fabric, or metal foil, and the outer layer comprises a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 41
Dependent Claim
100 words
The container of claim 26 wherein the substrate comprises metal foil, thermoplastic polymer, thermosetting polymer, woven fabric, non-woven fabric, cellular plastic, or cellular resin, said substrate including those bonded on one or both sides with auxiliary or filler layer(s), said auxiliary or filler layer(s) comprises metal foil, paper, thermoplastic polymer, thermosetting polymer, woven fabric, non-woven fabric, cellular plastic, or cellular resin, said auxiliary or filler layer(s) being dissimilar to said substrate, the chloropolymer comprises a polymer of vinyl chloride and/or vinylidene chloride, the adhesive consists of ECO, EAACO, or EVACO, and the outer layer comprises ECO, EAACO, EVACO, or EVA.
Claim 42
Dependent Claim
67 words
A container for enclosing foods, juices or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, an adhesive layer between, and binding, said substrate and said barrier layer, said barrier layer comprising a halopolymer, and said adhesive layer consisting of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 43
Dependent Claim
67 words
A container for enclosing foods, juices or beverages which contain essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, an adhesive layer between, and binding, said substrate and said barrier layer, said barrier layer comprising a halopolymer, and said adhesive layer consisting of a RF-heatable thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 44
Dependent Claim
33 words
The container of claim 40 wherein the halopolymer comprises a thermoplastic organic polymer having sufficient halogen groups to provide barrier properties to substantially inhibit or prevent the passage of essential oils and/or flavorings.
Claim 45
Dependent Claim
24 words
The container of claim 40 wherein the halopolymer comprises a polymer of vinyl halide, and/or vinylidene halide wherein the halide is chloride and/or fluoride.
Claim 46
Dependent Claim
17 words
The container of claim 40 wherein the halopolymer comprises a polymer of vinyl chloride and/or vinylidene chloride.
Claim 47
Dependent Claim
14 words
The container of claim 40 wherein the halopolymer comprises a polymer of vinylidene chloride.
Claim 48
Dependent Claim
16 words
The container of claim 40 wherein the adhesive layer consists of E/CO, E/CO/VA, E/CO/AA, or E/CO/MAA.
Claim 49
Dependent Claim
12 words
The container of claim 40 wherein the adhesive layer consists of E/CO/AA.
Claim 50
Dependent Claim
104 words
A container having enclosed therein a food, juice or beverage which contains essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, and an adhesive layer between, and binding, said substrate and said barrier layer, said adhesive layer consisting essentially of an ECO, EAACO, EMAACO, EVACO polymer or resin, such adhesive layer having a solubility parameter in the range of about 8 to about 14, and said barrier layer comprising a halopolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from the food, juices or flavorings enclosed therein.
Claim 51
Dependent Claim
104 words
A container having enclosed therein a food, juice or beverage which contains essential oils and/or flavorings, said container being constructed of a multi-ply structure comprising a substrate, an inner-wall barrier layer, and an adhesive layer between, and binding, said substrate and said barrier layer, said adhesive layer consisting essentially of an ECO, EAACO, EMAACO, EVACO polymer or resin, such adhesive layer having a solubility parameter in the range of about 8 to about 14, and said barrier layer comprising a halopolymer which restricts or substantially retards the passage or migration of the essential oils and/or flavorings from the food, juices or flavorings enclosed therein.
Claim 52
Dependent Claim
38 words
The container of claim 47 wherein the halopolymer barrier layer comprises a polymer of vinyl chloride and/or vinylidene chloride and the adhesive layer consists of a thermoplastic interpolymer of ethylene having carbon monoxide copolymerized into the polymer chain.
Claim 53
Dependent Claim
16 words
The container of claim 47 wherein the enclosed food comprises a dry cereal or baked goods.
Claim 54
Dependent Claim
12 words
The container of claim 47 wherein the enclosed juice comprises citrus juice.
Claim 55
Dependent Claim
12 words
The container of claim 47 wherein the enclosed juice comprises orange juice.
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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) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |