Title:
酸素ガスバリア性塗布および塗布フィルム
Document Type and Number:
Japanese Patent JP4868706
Kind Code:
B2
Abstract:
A film with excellent oxygen barrier properties is disclosed. A barrier coating used thereon is also disclosed, including polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, and wherein the copolymer of maleic acid and acrylic acid has a weight average molecular weight of about 3500 to about 5000. The barrier coating is typically less than about 1 micrometer in thickness and provides an oxygen barrier of less than about 0.3 cc.mil/100 in<2>/day/atm when tested at 23 degrees Celsius and 0 percent relative humidity according to ASTM D3985. A method of stripping low molecular eight fractions from the copolymer is also disclosed. Metallized coated film according to the present invention shows surprising barrier properties.
Inventors:
Robert G Posey
Edwin Charles Calvertson
Edwin Charles Calvertson
Application Number:
JP2003543818A
Publication Date:
February 01, 2012
Filing Date:
November 13, 2002
Export Citation:
Assignee:
Mitsubishi polyester film ink
International Classes:
B05D7/04; B05D7/24; B32B15/08; B32B27/08; B32B27/30; B32B27/36; B32B33/00; C08J7/043; C08J7/048; C08L33/08; C09D129/04; C08L29/04; C08L35/00
Domestic Patent References:
| JPH06220221A | 1994-08-09 | |||
| JPH07205379A | 1995-08-08 | |||
| JPH07102083A | 1995-04-18 | |||
| JP2002194265A | 2002-07-10 | |||
| JPH10237180A | 1998-09-08 | |||
| JPH07102110A | 1995-04-18 | |||
| JP2001239629A | 2001-09-04 | |||
| JP2001510110A | 2001-07-31 |
Foreign References:
| WO2002048265A1 | 2002-06-20 |
Attorney, Agent or Firm:
Kazuhiko Okada