US5033253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for skin packaging electostatically sensitive items
Assignee: Cryovac LLC
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Filing: 1989-11-17
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Granted: 1991-07-23
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Expires: 2009-11-17
Abstract
Abstract Disclosed is a skin packaging film for skin packaging high profile and/or heavy articles. The film comprises linear ethylene/alpha-olefin copolymer. In one embodiment, the film is antistatic and may be employed for skin packaging of electro-static sensitive items such as circuit boards.
Inventors
- 👤 Marvin R. Havens
- 👤 Stephen L. Fowler
- 👤 George J. McCrary, Jr.
- 👤 Alfred P. Engelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:31
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/305; C08J; C08J5/00; C08J5/18; C08L23/06; C08L23/0846; C08L23/0853; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/08; C08L2205/00; C08L2205/02; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A skin packaging process for packaging an electrostatically sensitive item comprising: (a) placing the item to be packaged on a support; (b) positioning a film above said item; (c) heating the film; (d) drawing a vacuum between said film and said support; and (e) drawing the film over and around the item forming a heat seal with the support; (f) wherein said film comprises an antistatic linear ethylene/alpha-olefin copolymer film and wherein said linear ethylene/alpha-olefin copolymer is a blend with one or more antistatic agents chosen from (a) one or more fatty acid esters of polyhydroxy alcohols, (b) one or more polyalkoxylated compounds, or a mixture of (a) and (b).
Claim 2
Dependent Claim
110 words
A skin packaging process for packaging an electrostatically sensitive item comprising: (a) placing the item to be packaged on a support; (b) positioning a film above said item; (c) heating the film; (d) drawing a vacuum between said film and said support; and (e) drawing the film over and around the item forming a heat seal with the support; (f) wherein said film comprises an antistatic linear ethylene/alpha-olefin copolymer film and wherein said linear ethylene/alpha-olefin copolymer is a blend with one or more antistatic agents chosen from (a) one or more fatty acid esters of polyhydroxy alcohols, (b) one or more polyalkoxylated compounds, or a mixture of (a) and (b).
Claim 3
Dependent Claim
88 words
A skin packaging process for packaging an electrostatically sensitive item comprising: (a) placing the item to be packaged on a support; (b) positioning a film above said item; (c) heating the film; (d) drawing a vacuum between said film and said support; and (e) drawing the film over and around the item forming a heat seal with the support; (f) wherein said film comprises an antistatic linear ethylene/alpha-olefin copolymer film and wherein said linear ethylene/alpha-olefin copolymer is in blend with glycerol monostearate, polyethoxylated cetyl alcohol, and polyethylene oxide.
Claim 4
Dependent Claim
88 words
A skin packaging process for packaging an electrostatically sensitive item comprising: (a) placing the item to be packaged on a support; (b) positioning a film above said item; (c) heating the film; (d) drawing a vacuum between said film and said support; and (e) drawing the film over and around the item forming a heat seal with the support; (f) wherein said film comprises an antistatic linear ethylene/alpha-olefin copolymer film and wherein said linear ethylene/alpha-olefin copolymer is in blend with glycerol monostearate, polyethoxylated cetyl alcohol, and polyethylene oxide.
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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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |