US5098202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layer web of film having a gas barrier
Assignee: Baxter International Inc
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Filing: 1989-05-11
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Granted: 1992-03-24
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Expires: 2009-05-11
Abstract
Abstract A web of film capable of being constructed into a flexible container is provided. The web of film comprises: a first layer of polyester; a second layer of polyvinyl chloride that does not include a DEHP plasticizer or epoxidized oil; a third gas barrier layer; a fourth layer of polyvinyl chloride that does not include a plasticizer; and a fifth layer of polyester. A container made from the film is also provided.
Inventors
- 👤 Larry A. Rosenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:25
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/304; B32B27/36; B32B2250/00; B32B2250/05; B32B2250/24; B32B2250/40; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2327/00; B32B2367/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/1383; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
57 words
A web of film for producing flexible containers comprising: a first layer of polyester; a second layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; a third gas barrier layer of polyvinylidene chloride; a fourth layer of a polyvinyl chloride that does not include a plasticizer; and a fifth layer of polyester.
Claim 2
Dependent Claim
57 words
A web of film for producing flexible containers comprising: a first layer of polyester; a second layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; a third gas barrier layer of polyvinylidene chloride; a fourth layer of a polyvinyl chloride that does not include a plasticizer; and a fifth layer of polyester.
Claim 3
Dependent Claim
20 words
The web of film of claim 1 wherein the polyvinyl chloride layers include an ethylene-vinyl acetate copolymer as a plasticizer.
Claim 4
Dependent Claim
16 words
The web of film of claim 1 wherein the polyester layers include a polycyclohexanedimethylcyclohexane di-carboxylate elastomer.
Claim 5
Dependent Claim
73 words
The web of film of claim 1: the first layer has a thickness of approximately 0.0002 to about 0.0020 inches; the second layer has a thickness of approximately 0.0020 to about 0.0110 inches; the third layer has a thickness of approximately 0.0005 to about 0.004 inches; the fourth layer has a thickness of approximately 0.0020 to about 0.0110 inches; and the fifth layer has a thickness of approximately 0.0002 to about 0.0020 inches.
Claim 6
Dependent Claim
22 words
The web of film of claim 1 wherein the film has an overall thickness of approximately 0.005 inches to about 0.030 inches.
Claim 7
Dependent Claim
20 words
The web of film of claim 1 wherein the first, second, fourth, and fifth layers do not include epoxidized oil.
Claim 8
Dependent Claim
14 words
The web of film claim 1 wherein the gas barrier layer is polyvinylidene chloride.
Claim 9
Dependent Claim
61 words
A web of film for producing flexible medial containers comprising: a first layer of polyester; a second layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; a third gas barrier layer of polyvinylidene chloride; a fourth layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; and a fifth layer of polyester.
Claim 10
Dependent Claim
61 words
A web of film for producing flexible medial containers comprising: a first layer of polyester; a second layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; a third gas barrier layer of polyvinylidene chloride; a fourth layer of polyvinyl chloride that does not include a diethylhexylphthalate plasticizer or epoxidized oil; and a fifth layer of polyester.
Claim 11
Dependent Claim
20 words
The web of film of claim 8 wherein the polyvinyl chloride layers include an ethylene-vinyl acetate copolymer as a plasticizer.
Claim 12
Dependent Claim
16 words
The web of film of claim 8 wherein the polyester layers include a polycyclohexanedimethylcyclohexane di-carboxylate elastomer.
Claim 13
Dependent Claim
73 words
The web of film of claim 8: the first layer has a thickness of approximately 0.00020 to about 0.0020 inches; the second layer has a thickness of approximately 0.0020 to about 0.0110 inches; the third layer has a thickness of approximately 0.0005 to about 0.004 inches: the fourth layer has a thickness of approximately 0.0020 to about 0.0110 inches; and the fifth layer has a thickness of approximately 0.00020 to about 0.0020 inches.
Claim 14
Dependent Claim
22 words
The web of film of claim 8 wherein the film has an overall thickness of approximately 0.005 inches to about 0.030 inches.
Claim 15
Dependent Claim
20 words
The web of film of claim 8 wherein the first, second, fourth, and fifth layers do not include epoxidized oil.
Claim 16
Dependent Claim
83 words
A flexible medical container having a body portion with opposed, sealed walls forming the container for containing fluids or solids that can be introduced into a patient body, the walls being constructed from a web of film comprising: a first layer of polyester; a second layer of polyvinyl chloride including an ethylene-vinyl acetate copolymer; a third layer of a material that provides a gas barrier; a fourth layer of a polyvinyl chloride including an ethylene-vinyl acetate copolymer; and a fifth layer of polyester.
Claim 17
Dependent Claim
83 words
A flexible medical container having a body portion with opposed, sealed walls forming the container for containing fluids or solids that can be introduced into a patient body, the walls being constructed from a web of film comprising: a first layer of polyester; a second layer of polyvinyl chloride including an ethylene-vinyl acetate copolymer; a third layer of a material that provides a gas barrier; a fourth layer of a polyvinyl chloride including an ethylene-vinyl acetate copolymer; and a fifth layer of polyester.
Claim 18
Dependent Claim
16 words
The web of film of claim 14 wherein the polyester layers include a polycyclohexanedimethylcyclohexane di-carboxylate elastomer.
Claim 19
Dependent Claim
73 words
The web of film of claim 14: the first layer has a thickness of approximately 0.00020 to about 0.0020 inches; the second layer has a thickness of approximately 0.0020 to about 0.0110 inches; the third layer has a thickness of approximately 0.0005 to about 0.004 inches; the fourth layer has a thickness of approximately 0.0020 to about 0.0110 inches; and the fifth layer has a thickness of approximately 0.00020 to about 0.0020 inches.
Claim 20
Dependent Claim
22 words
The web of film of claim 14 wherein the film has an overall thickness of approximately 0.005 inches to about 0.030 inches.
Claim 21
Dependent Claim
20 words
The web of film of claim 14 wherein the first, second, fourth, and fifth layers do not include epoxidized oil.
Claim 22
Dependent Claim
18 words
The web of film of claim 14 wherein the material that provides a gas barrier is polyvinylidene chloride.
Claim 23
Dependent Claim
29 words
The flexible container of claim 14 including a fitment secured to a wall of the container providing a means for accessing the fluid or solid contained by the container.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |