Patent US5033253A successfully refreshed from Google Patents.
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 16:58
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.
References Cited (Backward Citations)
FR1286018A
Cited
GB937807A
Cited
US3355319A
Cited
US3845163A
Cited
US3491504A
Cited
US3545163A
Cited
US3694991A
Cited
US3756399A
Cited
US4275544A
Cited
US4311752A
Cited
US4375851A
Cited
US4293070A
Cited
US4597920A
Cited
EP0066149A1
Cited
GB2111508A
Cited
NZ203113A
Cited
GB2128199A
Cited
US4537011A
Cited
NZ207210A
Cited
JPS59227420A
Cited
US4590741A
Cited
NZ211770A
Cited
EP0168928A2
Cited
NZ211688A
Cited
US4677809A
Cited
US4790433A
Cited
US4769433A
Cited
EP0228818A1
Cited
US4963427A
Cited
EP0244982A2
Cited
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 |