Patent US4049904A successfully refreshed from Google Patents.
US4049904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic laminated metallic foil and method for preparing the same
Assignee: Nitto Denko Corp
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Filing: 1972-10-24
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Granted: 1977-09-20
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Expires: 1992-10-24
Abstract
Abstract A plastic laminated metallic foil is prepared by laminating a first layer of a polymer selected from the group consisting of ethylene-unsaturated carboxylic acid copolymers, ethylene-unsaturated carboxylic acid ester copolymers, ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid-ester ternary copolymers, ionomers containing these copolymers as the base, and graft copolymers of polyethylene and unsaturated carboxylic acids on at least one surface of a metallic foil, and further laminating a second layer of a polymer selected from the group consisting of polyethylene, ethylene-vinyl acetate copolymers, ethylene-unsaturated carboxylic acid ester copolymers, and graft copolymers of polyethylene and unsaturated carboxylic acid esters onto the first polymer layer of the metallic foil.
Inventors
- 👤 Yutaka Hori
- 👤 Zenzo Honda
- 👤 Kenji Suzuki
- 👤 Keiji Nakamoto
- 👤 Yoshiharu Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:44
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/10; H01B13/103; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1016; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
129 words
A plastic cable having a covering layer on the outside of its aggregated core and provided with a polyolefin jacket on the outer surface of the covering layer for the aggregated core, said covering layer comprising: a. a metallic foil-plastic laminated film having adhered thereto a first layer comprising an ionomer of a base copolymer selected from the group consisting of ethylene-unsaturated carboxylic acid copolymers, ethylene-unsaturated carboxylic acid and ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid ester ternary copolymers, on at least one side of a metallic foil and further having adhered a second layer comprising a polymer selected from the group consisting of ethylene-vinyl acetate copolymer or ethylene-unsaturated carboxylic acid ester copolymers, on the outside thereof, with the first layer being positioned between the metallic foil and the second layer.
Claim 2
Dependent Claim
129 words
A plastic cable having a covering layer on the outside of its aggregated core and provided with a polyolefin jacket on the outer surface of the covering layer for the aggregated core, said covering layer comprising: a. a metallic foil-plastic laminated film having adhered thereto a first layer comprising an ionomer of a base copolymer selected from the group consisting of ethylene-unsaturated carboxylic acid copolymers, ethylene-unsaturated carboxylic acid and ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid ester ternary copolymers, on at least one side of a metallic foil and further having adhered a second layer comprising a polymer selected from the group consisting of ethylene-vinyl acetate copolymer or ethylene-unsaturated carboxylic acid ester copolymers, on the outside thereof, with the first layer being positioned between the metallic foil and the second layer.
Claim 3
Dependent Claim
11 words
The plastic cable of claim 1, wherein the polyolefin is polyethylene.
Claim 4
Dependent Claim
194 words
The plastic cable of claim 1 wherein a. the metallic foil is composed of a member selected from the group consisting of aluminum, copper, iron, steel, silver, gold and tin; b. said first layer is of a polymer having a molecular weight of from 10,000 to 50,000 consisting essentially of a member selected only from the group consisting of ionomers of base copolymers of (1) ethylene-unsaturated carboxylic acid copolymers containing from 50 to 98 weight percent ethylene and from 50 to 2 percent acid, and (2) ethylene-unsaturated carboxylic acid-unsaturated carboxylic acid ester ternary copolymers containing from 50 to 98 weight percent ethylene and from 50 to 2 weight percent of the acid and ester wherein no more than 20 weight percent, based upon the weight of ethylene, of the ester is present in said ternary copolymer, and c. the second layer is of a polymer having a molecular weight of from 10,000 to 50,000 consisting essentially of a member selected only from the group consisting of ethylene-vinyl acetate copolymers containing no more than 30 weight percent vinyl acetate, and ethylene-unsaturated carboxylic acid ester copolymers containing no more than 95 weight percent of the ester.
Claim 5
Dependent Claim
14 words
The plastic cable of claim 3 wherein said metallic foil is composed of aluminum.
Claim 6
Dependent Claim
33 words
The plastic cable of claim 3 wherein said unsaturated carboxylic acid is an unsaturated aliphatic carboxylic acid containing 2 to 12 carbon atoms other than those carbon atoms contained in its carboxyl group.
Claim 7
Dependent Claim
26 words
The plastic cable of claim 3 wherein said unsaturated carboxylic acid is a member selected from the group consisting of a mono- and divalent carboxylic acid.
Claim 8
Dependent Claim
28 words
The plastic cable of claim 3 wherein said unsaturated carboxylic acid is one selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid and maleic anhydride.
Claim 9
Dependent Claim
14 words
The plastic cable of claim 3 wherein said unsaturated carboxylic acid is acrylic acid.
Claim 10
Dependent Claim
38 words
The plastic cable of claim 3 wherein the amount of ethylene and the carboxylic acid in said ethylene-unsaturated carboxylic acid copolymers ranges from 70 to 90 percent by weight and from 30 to 10 percent by weight, respectively.
Claim 11
Dependent Claim
46 words
The plastic cable of claim 3 wherein said unsaturated carboxylic ester is a member selected from the group consisting of ethyl, propyl and butyl esters of an aliphatic unsaturated acid containing 2 to 12 carbon atoms, other than those carbon atoms contained in its carboxyl group.
Claim 12
Dependent Claim
22 words
The plastic cable of claim 10 wherein said unsaturated carboxylic ester is the ester of a mono- or dilvalent unsaturated carboxylic acid.
Claim 13
Dependent Claim
24 words
The plastic cable of claim 10 wherein said unsaturated carboxylic ester is a member selected from the group consisting of acrylic and methacrylic esters.
Claim 14
Dependent Claim
13 words
The plastic cable of claim 10 wherein said unsaturated carboxylic ester is ethylacrylate.
Claim 15
Dependent Claim
25 words
The plastic cable of claim 3 wherein said ionomer contains a metal ion selected from the group consisting of magnesium, strontium, sodium and zinc ions.
Claim 16
Dependent Claim
27 words
The plastic cable of claim 14 wherein said ionomer consists essentially of an ethylene acrylic acid copolymer acid base and a zinc ion as said metal ion.
Claim 17
Dependent Claim
27 words
The plastic cable of claim 14 wherein said ionomer consists essentially of an ethylene-acrylic acid copolymer as said base and a sodium ion as said metal ion.
Claim 18
Dependent Claim
25 words
The plastic cable of claim 3 wherein said ethylene-vinyl acetate copolymer has a vinyl acetate content which ranges from 2 to 20 percent by weight.
Claim 19
Dependent Claim
27 words
The plastic cable of claim 3 wherein said ethylene-unsaturated carboxylic ester copolymer has an unsaturated carboxylic ester content which ranges from 1 to 95 percent by weight.
Claim 20
Dependent Claim
27 words
The plastic cable of claim 18 wherein said ethylene-unsaturated carboxylic ester copolymer has an unsaturated carboxylic ester content which ranges from 1 to 85 percent by weight.
Claim 21
Dependent Claim
32 words
The plastic cable of claim 3 wherein the surface of the second polymer layer of the bilayer plastic film is subjected to an adhesion treatment prior to bonding to the metallic foil.
Claim 22
Dependent Claim
17 words
The plastic cable of claim 20 wherein the adhesion treatment comprises subjecting said surface to corona discharge.
Claim 23
Dependent Claim
18 words
The plastic cable of claim 20 wherein the adhesion treatment comprises subjecting said surface to an oxidizing flame.
Claim 24
Dependent Claim
17 words
The plastic cable of claim 20 wherein the adhesion treatment comprises treating said surface with chromic acid.
Claim 25
Dependent Claim
47 words
The plastic cable of claim 3 wherein the thickness of the metallic foil ranges from 100 to 250 microns, the total thickness of the first and second layers ranges from 45 to 75 microns and the thickness of the second layer ranges from 20 to 30 microns.
Claim 26
Dependent Claim
16 words
The plastic cable of claim 3 wherein said first and second layers comprise simultaneously extruded layers.
Claim 27
Dependent Claim
23 words
The plastic cable of claim 25 wherein said first and second layers are thermally pressed together prior to bonding to said metallic foil.
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |