US4778699A
Expired / Lapsed
US
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Plastics film laminates
Assignee: Reynolds Metals Co
•
Filing: 1986-09-15
•
Granted: 1988-10-18
•
Expires: 2006-09-15
Abstract
Abstract Multi-layer plastics film laminate structures are disclosed. These structures have particular utility as inner and outer layers of multi-layer bag structures or as single layer bag structures, particularly for use in bag-in-box applications.
Inventors
- 👤 Walter H. Knox, III
- 👤 Ronald E. Layne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:22
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; B32B27/322; B32B27/06; B32B27/08; B32B27/30; B32B27/306; B32B27/36; B32B7/00; B32B7/04; B32B7/12; B65; B65D; B65D77/00; B65D77/04; B65D77/06; B65D77/062; B65D77/065; B32B2307/00; B32B2307/70; B32B2307/72; B32B2307/746; B32B2323/00; B32B2323/04; B32B2323/046; B32B2331/00; B32B2331/04; B32B2367/00; B32B2405/00; B32B2439/00; B32B2439/70; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1338; Y10T428/1341; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31928
Claims Analysis
Total Claims: 68
Claim 1
Independent Claim
119 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 2
Dependent Claim
119 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 3
Dependent Claim
25 words
The laminate of claim 1 wherein said ethylene vinyl acetate has a vinyl acetate content of from about 4 to about 18 percent by weight.
Claim 4
Dependent Claim
21 words
The laminate of claim 2 wherein said ethylene vinyl acetate has a vinyl acetate content of about 12 percent by weight.
Claim 5
Dependent Claim
25 words
The laminate of claim 1 wherein at least one of components A or D includes at least one of a slip or an anti-block additive.
Claim 6
Dependent Claim
19 words
The laminate of claim 1 wherein said laminate has an overall gauge of between about 1.5 and 3.0 mils.
Claim 7
Dependent Claim
16 words
The laminate of claim 5 wherein said laminate has an overall gauge of about 2.0 mils.
Claim 8
Dependent Claim
18 words
The laminate of claim 1 wherein component A has a gauge of between about 0.4 and 1.6 mils.
Claim 9
Dependent Claim
15 words
The laminate of claim 7 wherein component A has a gauge of about 0.8 mils.
Claim 10
Dependent Claim
18 words
The laminate of claim 1 wherein component B has a gauge of between about 0.1 and 0.4 mils.
Claim 11
Dependent Claim
15 words
The laminate of claim 9 wherein component B has a gauge of about 0.2 mils.
Claim 12
Dependent Claim
18 words
The laminate of claim 1 wherein component C has a gauge of between about 0.2 and 1.0 mils.
Claim 13
Dependent Claim
15 words
The laminate of claim 11 wherein component C has a gauge of about 0.3 mils.
Claim 14
Dependent Claim
18 words
The laminate of claim 1 wherein component D has a gauge of between about 0.2 and 1.6 mils.
Claim 15
Dependent Claim
15 words
The laminate of claim 13 wherein component D has a gauge of about 0.5 mils.
Claim 16
Dependent Claim
119 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 17
Dependent Claim
119 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 18
Dependent Claim
25 words
The laminate of claim 15 wherein said ethylene vinyl acetate has a vinyl acetate content of from about 4 to about 18 percent by weight.
Claim 19
Dependent Claim
21 words
The laminate of claim 2 wherein said ethylene vinyl acetate has a vinyl acetate content of about 12 percent by weight.
Claim 20
Dependent Claim
19 words
The laminate of claim 15 wherein component A includes at least one of a slip or an anti-block additive.
Claim 21
Dependent Claim
19 words
The laminate of claim 15 wherein said laminate has an overall gauge of between about 1.5 and 3.0 mils.
Claim 22
Dependent Claim
16 words
The laminate of claim 19 wherein said laminate has an overall gauge of about 2.0 mils.
Claim 23
Dependent Claim
18 words
The laminate of claim 15 wherein component A has a gauge of between about 0.2 and 0.8 mils.
Claim 24
Dependent Claim
15 words
The laminate of claim 21 wherein component A has a gauge of about 0.4 mils.
Claim 25
Dependent Claim
18 words
The laminate of claim 15 wherein component B has a gauge of between about 0.05 and 0.2 mils.
Claim 26
Dependent Claim
15 words
The laminate of claim 23 wherein component B has a gauge of about 0.1 mils.
Claim 27
Dependent Claim
18 words
The laminate of claim 15 wherein component C has a gauge of between about 0.1 and 0.5 mils.
Claim 28
Dependent Claim
15 words
The laminate of claim 25 wherein component C has a gauge of about 0.15 mils.
Claim 29
Dependent Claim
18 words
The laminate of claim 15 wherein component D has a gauge of between about 0.1 and 0.8 mils.
Claim 30
Dependent Claim
15 words
The laminate of claim 27 wherein component D has a gauge of about 0.25 mils.
Claim 31
Dependent Claim
132 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-E-F-E-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component E is an adhesive tie layer; and Component F is metallized polyethylene terephthalate; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 32
Dependent Claim
132 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-E-F-E-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component E is an adhesive tie layer; and Component F is metallized polyethylene terephthalate; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 33
Dependent Claim
15 words
The laminate of claim 29 wherein said adhesive tie layer is a polyester type adhesive.
Claim 34
Dependent Claim
25 words
The laminate of claim 29 wherein said ethylene vinyl acetate has a vinyl acetate content of from about 4 to about 18 percent by weight.
Claim 35
Dependent Claim
21 words
The laminate of claim 31 wherein said ethylene vinyl acetate has a vinyl acetate content of about 12 percent by weight.
Claim 36
Dependent Claim
19 words
The laminate of claim 29 wherein said laminate has an overall gauge of between about 3.3 and 7.4 mils.
Claim 37
Dependent Claim
16 words
The laminate of claim 33 wherein said laminate has an overall gauge of about 4.68 mils.
Claim 38
Dependent Claim
18 words
The laminate of claim 29 wherein component A has a gauge of between about 0.4 and 1.6 mils.
Claim 39
Dependent Claim
15 words
The laminate of claim 35 wherein component A has a gauge of about 0.8 mils.
Claim 40
Dependent Claim
18 words
The laminate of claim 29 wherein component B has a gauge of between about 0.1 and 0.4 mils.
Claim 41
Dependent Claim
15 words
The laminate of claim 37 wherein component B has a gauge of about 0.2 mils.
Claim 42
Dependent Claim
18 words
The laminate of claim 29 wherein component C has a gauge of between about 0.2 and 1.0 mils.
Claim 43
Dependent Claim
15 words
The laminate of claim 29 wherein component C has a gauge of about 0.3 mils.
Claim 44
Dependent Claim
18 words
The laminate of claim 29 wherein component D has a gauge of between about 0.2 and 1.6 mils.
Claim 45
Dependent Claim
15 words
The laminate of claim 41 wherein component D has a gauge of about 0.5 mils.
Claim 46
Dependent Claim
18 words
The laminate of claim 29 wherein component E has a gauge of between about 0.5 and 0.2 mils.
Claim 47
Dependent Claim
15 words
The laminate of claim 43 wherein component E has a gauge of about 0.1 mils.
Claim 48
Dependent Claim
18 words
The laminate of claim 29 wherein component F has a gauge of between about 0.25 and 1.0 mils.
Claim 49
Dependent Claim
15 words
The laminate of claim 45 wherein component F has a gauge of about 0.48 mils.
Claim 50
Dependent Claim
133 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-D-B-C-B-A-E-F-E-A-B-C-B-D-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component E is an adhesive tie layer; and Component F is a metallized polyethylene terephthalate; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 51
Dependent Claim
133 words
A multi-component plastics resin film laminate, said laminate having the structure A-B-C-B-D-D-B-C-B-A-E-F-E-A-B-C-B-D-D-B-C-B-A, wherein Component A is selected from the group consisting of ethylene vinyl acetate and linear low density polyethylene; Component B is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and low density polyethylene; Component C is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component D is selected from the group consisting of ethylene vinyl acetate, linear low density polyethylene and very low density polyethylene; Component E is an adhesive tie layer; and Component F is a metallized polyethylene terephthalate; and wherein at least one of components C or D is very low density polyethylene having a density of less than 0.91 grams per cubic centimeter.
Claim 52
Dependent Claim
15 words
The laminate of claim 47 wherein said adhesive tie layer is a polyester type adhesive.
Claim 53
Dependent Claim
25 words
The laminate of claim 47 wherein said ethylene vinyl acetate has a vinyl acetate content of from about 4 to about 18 percent by weight.
Claim 54
Dependent Claim
21 words
The laminate of claim 49 wherein said ethylene vinyl acetate has a vinyl acetate content of about 12 percent by weight.
Claim 55
Dependent Claim
19 words
The laminate of claim 47 wherein said laminate has an overall gauge of between about 3.3 and 7.4 mils.
Claim 56
Dependent Claim
16 words
The laminate of claim 51 wherein said laminate has an overall gauge of about 4.68 mils.
Claim 57
Dependent Claim
18 words
The laminate of claim 47 wherein component A has a gauge of between about 0.2 and 0.8 mils.
Claim 58
Dependent Claim
15 words
The laminate of claim 53 wherein component A has a gauge of about 0.4 mils.
Claim 59
Dependent Claim
18 words
The laminate of claim 47 wherein component B has a gauge of between about 0.05 and 0.2 mils.
Claim 60
Dependent Claim
15 words
The laminate of claim 53 wherein component B has a gauge of about 0.1 mils.
Claim 61
Dependent Claim
18 words
The laminate of claim 47 wherein component C has a gauge of between about 0.1 and 0.5 mils.
Claim 62
Dependent Claim
15 words
The laminate of claim 57 wherein component C has a gauge of about 0.15 mils.
Claim 63
Dependent Claim
18 words
The laminate of claim 47 wherein component D has a gauge of between about 0.1 and 0.8 mils.
Claim 64
Dependent Claim
15 words
The laminate of claim 59 wherein component D has a gauge of about 0.25 mils.
Claim 65
Dependent Claim
18 words
The laminate of claim 47 wherein component E has a gauge of between about 0.05 and 0.2 mils.
Claim 66
Dependent Claim
15 words
The laminate of claim 61 wherein component E has a gauge of about 0.1 mils.
Claim 67
Dependent Claim
18 words
The laminate of claim 47 wherein component F has a gauge of between about 0.25 and 1.0 mils.
Claim 68
Dependent Claim
15 words
The laminate of claim 63 wherein component F has a gauge of about 0.48 mils.
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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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |