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US5613610A Expired / Lapsed US ⏱️ 0.0 years remaining

Naturally degradable and recyclable static-dissipative packaging material

Assignee: Bradford Co Inc
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Filing: 1995-02-03
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Granted: 1997-03-25
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Expires: 2015-02-03
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Abstract

Abstract A naturally degradable and recyclable static-dissipative packaging material has a layer of relatively rigid paperboard laminated to at least one film of permanently static-dissipative glassine or cellophane. Containers, and dividers and pads used in the containers, are formed from this composite material to protect packaged articles sensitive to electrostatic discharge. The permanently static-dissipative film of glassine or cellophane is electrostatically volume dissipative, so as to prevent an electrostatic charge from being held and then discharged when articles are inserted into, and/or removed from the containers. A metallized internal surface of the laminated glassine or cellophane forms a Faraday cage around a packaged article. For metallized or unmetallized embodiments, with either one or two films of glassine or cellophane, all the components of this packaging material are considered biodegradable and repulpable.

Inventors

  • 👤 Judson A. Bradford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 18:39
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0067; B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48038; B65D81/00; B65D81/24; Y; Y02; Y02W; Y02W90/00; Y02W90/10; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303

Claims Analysis

Total Claims: 36
Claim 1
Independent Claim 154 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two films of amine free permanently static-dissipative materials, each of said two films of static-dissipative material having a surface resistivity of greater than 10 5 but less than 10 12 ohms per square, the layer of relatively rigid material being sandwiched between the two films while the films are in a solid state, and each of the films having the same solid, amine free permanently static dissipative characteristics before and after said sandwiching; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein, the dividers being naturally degradable.
Claim 2
Dependent Claim 154 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two films of amine free permanently static-dissipative materials, each of said two films of static-dissipative material having a surface resistivity of greater than 10 5 but less than 10 12 ohms per square, the layer of relatively rigid material being sandwiched between the two films while the films are in a solid state, and each of the films having the same solid, amine free permanently static dissipative characteristics before and after said sandwiching; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein, the dividers being naturally degradable.
Claim 3
Dependent Claim 89 words
A container as in claim 1 further comprising: a relatively rigid top pad located between said top wall of said box and said dividers; a relatively rigid bottom pad located between said bottom wall of said box and said dividers; wherein each said pad comprises a layer of relatively rigid material laminated on at least one side with a film of permanently static-dissipative material; and said pads and said dividers completely surrounding said cells with a film of naturally static-dissipative material, the dividers and pads further being naturally degradable.
Claim 4
Dependent Claim 129 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two films of permanently static-dissipative materials, each of said two films of static-dissipative material having a surface resistivity of greater than 10 5 but less than 10 12 ohms per square; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein, the dividers being naturally degradable wherein said permanently static-dissipative material comprises a material selected from the following two materials, glassine and cellophane.
Claim 5
Dependent Claim 129 words
A container for packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of relatively rigid material sandwiched between two films of permanently static-dissipative materials, each of said two films of static-dissipative material having a surface resistivity of greater than 10 5 but less than 10 12 ohms per square; and wherein said dividers partially define a predetermined number of cells within said box, each said cell providing protection from electrostatic charge for static electricity sensitive articles to be packaged therein, the dividers being naturally degradable wherein said permanently static-dissipative material comprises a material selected from the following two materials, glassine and cellophane.
Claim 6
Dependent Claim 107 words
A container as in claim 1 and further comprising: a relatively rigid top pad located between said top wall of said box and said dividers; a relatively rigid bottom pad located between said bottom wall of said box and said dividers; wherein each said pad comprises a layer of relatively rigid material laminated on at least one side with a film of permanently static-dissipative material; and said pads and said dividers completely surrounding said cells with a film of naturally static-dissipative material, the dividers and pads further being naturally degradable wherein said permanently static-dissipative material comprises a material selected from the following two materials, cellophane and glassine.
Claim 7
Dependent Claim 30 words
A container as in claim 1 or claim 2 wherein for each of said pads and dividers, internal surfaces of the two films of permanently static-dissipative material are electrically conductive.
Claim 8
Dependent Claim 35 words
A container as in claim 5 wherein each of said internal surfaces is metallized with one or more elements selected from the group of nickel, aluminum, copper and iron to render said surface electrically conductive.
Claim 9
Dependent Claim 14 words
The container of claim 1 wherein the layers of relatively rigid material are corrugated.
Claim 10
Dependent Claim 163 words
A container for use in packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of paperboard sandwiched between two films of amine free permanently static-dissipative material, each of said two films of permanently static-dissipative material having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, the dividers being naturally degradable, the layer of relatively rigid material being sandwiched between the two films while the films are in a solid state, and each of the films having the same solid, amine free permanently static dissipative characteristics before and after said sandwiching; and wherein said dividers partially define a predetermined number of cells within said box, each said cell being volume dissipative from electrostatic charge to provide protection from static electricity for a static electricity sensitive article to be packaged therein.
Claim 11
Dependent Claim 163 words
A container for use in packaging an article which can be damaged by static electricity, comprising: a box having sidewalls and top and bottom walls; a plurality of relatively rigid dividers located in said box, each said divider comprising a layer of paperboard sandwiched between two films of amine free permanently static-dissipative material, each of said two films of permanently static-dissipative material having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, the dividers being naturally degradable, the layer of relatively rigid material being sandwiched between the two films while the films are in a solid state, and each of the films having the same solid, amine free permanently static dissipative characteristics before and after said sandwiching; and wherein said dividers partially define a predetermined number of cells within said box, each said cell being volume dissipative from electrostatic charge to provide protection from static electricity for a static electricity sensitive article to be packaged therein.
Claim 12
Dependent Claim 10 words
The container of claim 8 wherein the dividers are repulpable.
Claim 13
Dependent Claim 12 words
The container of claim 8 wherein the layers of paperboard are corrugated.
Claim 14
Dependent Claim 93 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of amine free permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said film being applied to the layer of relatively rigid material while in a solid state, and the film having the same solid, amine-free permanently static dissipative characteristics before and after said applying, said layer and said film being naturally degradable.
Claim 15
Dependent Claim 93 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of amine free permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said film being applied to the layer of relatively rigid material while in a solid state, and the film having the same solid, amine-free permanently static dissipative characteristics before and after said applying, said layer and said film being naturally degradable.
Claim 16
Dependent Claim 12 words
A multiple-ply material as in claim 11 wherein said layer comprises paperboard.
Claim 17
Dependent Claim 15 words
A multiple-ply material as in claim 12 wherein said layer and said film are recyclable.
Claim 18
Dependent Claim 63 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer and said films being naturally degradable, wherein said film comprises cellophane.
Claim 19
Dependent Claim 63 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer and said films being naturally degradable, wherein said film comprises cellophane.
Claim 20
Dependent Claim 63 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer and said films being naturally degradable, wherein said film comprises glassine.
Claim 21
Dependent Claim 63 words
A multiple-ply packaging material comprising: a layer of relatively rigid material having first and second surfaces; a film of permanently static-dissipative material applied to one of said first and second surfaces, said film having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer and said films being naturally degradable, wherein said film comprises glassine.
Claim 22
Dependent Claim 31 words
A multiple-ply material as in claim 11 wherein said permanently static-dissipative material has a conductive coating in surface contact with said one of said first and second surfaces of said layer.
Claim 23
Dependent Claim 29 words
A multiple-ply material as in claim 16 wherein said conductive coating comprises metallized particles of one or more elements selected from the group of nickel, aluminum, copper and iron.
Claim 24
Dependent Claim 15 words
The multiple ply packaging material of claim 11 wherein the relatively rigid material is corrugated.
Claim 25
Dependent Claim 133 words
A multiple-ply paperboard comprising: a first film of amine free, permanently static-dissipative material; a second film of amine free, permanently static-dissipative material; a layer of paperboard having first and second sides, said first and second films being applied to said first and second sides, respectively, of said paperboard so as to sandwich said paperboard between said first and second films, said first and second films having a natural surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer of paperboard being applied between the two films while the films are in a solid state, and each of the films having the same solid, amine-free permanently static dissipative characteristics before and after said application, said first and second films and said layer being naturally degradable and recyclable.
Claim 26
Dependent Claim 133 words
A multiple-ply paperboard comprising: a first film of amine free, permanently static-dissipative material; a second film of amine free, permanently static-dissipative material; a layer of paperboard having first and second sides, said first and second films being applied to said first and second sides, respectively, of said paperboard so as to sandwich said paperboard between said first and second films, said first and second films having a natural surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer of paperboard being applied between the two films while the films are in a solid state, and each of the films having the same solid, amine-free permanently static dissipative characteristics before and after said application, said first and second films and said layer being naturally degradable and recyclable.
Claim 27
Dependent Claim 14 words
The multiple ply paperboard of claim 19 wherein the layer of paperboard is corrugated.
Claim 28
Dependent Claim 139 words
A multiple-ply packaging material comprising: a first film of amine free, permanently static-dissipative material; a second film of amine free, permanently static-dissipative material; a layer of relatively rigid material having first and second sides, said first and second films being applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second films, said first and second films having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer of relatively rigid material being applied between the two films while the films are in a solid state, and each of the films having the same solid, amine-free permanently static dissipative characteristics before and after said application, said first and second films and said layer being naturally degradable.
Claim 29
Dependent Claim 139 words
A multiple-ply packaging material comprising: a first film of amine free, permanently static-dissipative material; a second film of amine free, permanently static-dissipative material; a layer of relatively rigid material having first and second sides, said first and second films being applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second films, said first and second films having a surface resistivity of more than 10 5 but less than 10 12 ohms per square, said layer of relatively rigid material being applied between the two films while the films are in a solid state, and each of the films having the same solid, amine-free permanently static dissipative characteristics before and after said application, said first and second films and said layer being naturally degradable.
Claim 30
Dependent Claim 17 words
The multiple ply packaging material of claim 21 wherein the layer of relatively rigid material is corrugated.
Claim 31
Dependent Claim 114 words
A multiple-ply packaging material comprising: a first film of permanently static-dissipative material; a second film of permanently static-dissipative material; a layer of relatively rigid material having first and second sides, said first and second films being applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second films, said first and second films having a surface resistivity of more than 10 5 but less than 10 12 ohms per square and said first and second films and said layer being naturally degradable, wherein said permanently static-dissipative material comprises a material selected from the following two materials, glassine and cellophane.
Claim 32
Dependent Claim 114 words
A multiple-ply packaging material comprising: a first film of permanently static-dissipative material; a second film of permanently static-dissipative material; a layer of relatively rigid material having first and second sides, said first and second films being applied to said first and second sides, respectively, of said relatively rigid material so as to sandwich said relatively rigid material between said first and second films, said first and second films having a surface resistivity of more than 10 5 but less than 10 12 ohms per square and said first and second films and said layer being naturally degradable, wherein said permanently static-dissipative material comprises a material selected from the following two materials, glassine and cellophane.
Claim 33
Dependent Claim 14 words
A multiple-ply material as in claim 21 or 23 wherein said layer comprises paperboard.
Claim 34
Dependent Claim 39 words
A multiple-ply material as in claim 21 or claim 23 wherein each of said first and second films of permanently static-dissipative material include an inner conductive surface adhered to one of said first and second sides of said layer.
Claim 35
Dependent Claim 21 words
A multiple-ply material as in claim 21 or claim 23 wherein said first and second films and said layer are biodegradable.
Claim 36
Dependent Claim 21 words
A multiple-ply material as in claim 21 or claim 23 wherein said first and second films and said layer are repulpable.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-03-24 2000-09-23 2001-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-03-24 2004-09-23 2005-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-03-24 2008-09-23 2009-03-25 $7700.00 Window Closed / Lapsed

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