Film and blends of polyetheramide block copolymer and ethylene vinyl alcohol

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5069955
SERIAL NO

07471009

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Ethylene vinyl alcohol copolymer is blended with polyetheramide block copolymer to form a novel composition of matter. The blended composition can be extruded and/or coextruded to make packaging films. In the most preferred embodiments, the blend is contained as one layer in a film comprising a multiplicity of layers, and at least the blend layer is molecularly oriented. Methods of making the films are also disclosed.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PECHINEY EMBALLAGE FLEXIBLE EUROPECHICAGO, IL38

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iwanami, Teruo Ibaraki, JP 11 159
Schroeder, George O Appleton, WI 8 298
Tse, Samuel W Appleton, WI 8 165

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TOYO SEIKAN KAISHA, LTD. (1)
* 4500677 Resin composition excellent in drawability 21 1983
 
TOYO SEIKAN KAISHA, LTD. (1)
* 4562118 Films, sheets, laminates and molded articles having gas barrier properties 41 1984
 
Mobil Oil Corporation (1)
* 4464438 Blends of polyvinyl alcohol and ethylene-vinyl alcohol copolymer as grease resistant melt extrudable films 46 1983
 
PECHINEY EMBALLAGE FLEXIBLE EUROPE (2)
* 4347332 Polyamide/polyethylene copolymer film and method for producing 48 1981
* 4717618 Film and blends of polyetheramide block copolymer and ethylene vinyl alcohol copolymer 13 1985
 
UNITIKA LTD. (1)
* 4365041 Resin composition comprising water-soluble polyamide and vinyl alcohol-based polymer 44 1981
 
ALLIED CORPORATION (1)
* 4427825 Blends of polyamide and ethylene vinyl alcohol copolymers 32 1981
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
COVERIS FLEXIBLES US LLC (2)
9498936 Multilayer barrier structures, methods of making the same and packages made therefrom 0 2005
9498937 Multilayer structures, packages, and methods of making multilayer structures 0 2005
 
ELF ATOCHEM S.A. (1)
* 5166309 Block polyetheramides 17 1992
 
VISKASE COMPANIES, INC. (1)
* 5698279 Heat shrinkable nylon food casing having a functionalized ethylenic polymer core layer 21 1992
 
SOLVAY INDUSTRIAL FOILS MANAGEMENT AND RESEARCH (1)
* 6136394 Tube comprising at least three layers 12 1998
 
VISKASE CORPORATION (1)
* 5549943 Heat shrinkable nylon food casing with a polyolefin core layer 25 1992
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
* 5342717 Charging component for electrophotographic process containing a protective layer of conductive carbon black particles in polyether-ester-amide block copolymer 2 1993
 
CRYOVAC, INC. (2)
* 5645788 Making highly oriented multilayer film 9 1995
6294210 Oxygen permeable multilayer film 9 1997
* Cited By Examiner