Methods of making improved packages
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 22, 1991
Issued Date -
N/A
app pub date -
May 15, 1989
filing date -
Nov 22, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Sheet materials and packages capable of holding hard-to-hold products such as methyl salicylate. The preferred embodiments include a foil layer 12 and a layer 14 of EVOH between foil layer 12 and the enclosed product. A carboxy modified adhesive layer 18 is disposed between the EVOH layer 14 and the product 52. Additional layers are used in the sheet material for purposes of adhesion, appearance, protection, body, and the like. One embodiment of the invention is a coextruded film comprising the EVOH layer 514, a surface layer 516, an intervening adhesive layer 518, and a fourth covering layer 519 for covering and protecting the EVOH layer 514, especially from physical abuse. A method is disclosed wherein the sheet materials of the invention may be made into packages using fin seals 54 and lap seals 50.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully