US4623564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating packaging material with anti-static composition
Assignee: Hughes Missile Systems Co
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Filing: 1985-12-05
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Granted: 1986-11-18
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Expires: 2005-12-05
Abstract
Abstract A rigid packaging material having a coating of heat-sealable, anti-static plastic. A fiberboard sheet substrate is coated with a lamina of polyethylene made electrostatic-free by the addition of an organic anti-static compound. When skin-packaged with a film of heat sealable, anti-static plastic material, a static-sensitive item is completely enclosed by a static-free barrier package.
Inventors
- 👤 Stuart G. Long
- 👤 Michael J. Maciocia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:52
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; B05; B05D; B05D5/00; B05D5/12; B32B27/30; B32B2307/00; B32B2307/20; B32B2307/21; B32B2307/30; B32B2307/31; B32B2553/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
A method of making one or more sheets of a laminated, anti-static, heat sealable backing material comprising the steps of: composing a mixture whose volume consists essentially of about 31-34% of a thermoplastic ionomer resin, about 30-34% of deionized water, about 30-34% of a volatile solvent, and at least 2% of an organic anti-static compound; heating said mixture to approximately 200° fahrenheit; applying a layer of said heated mixture to a sheet of substantially rigid substrate; and cooling said layer on said sheet.
Claim 2
Independent Claim
83 words
A method of making one or more sheets of a laminated, anti-static, heat sealable backing material comprising the steps of: composing a mixture whose volume consists essentially of about 31-34% of a thermoplastic ionomer resin, about 30-34% of deionized water, about 30-34% of a volatile solvent, and at least 2% of an organic anti-static compound; heating said mixture to approximately 200° fahrenheit; applying a layer of said heated mixture to a sheet of substantially rigid substrate; and cooling said layer on said sheet.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said sheet of substrate comprises a sheet of fiberboard.
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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) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |