发明名称 |
OXYGEN BARRIER COATING AND COATED FILM |
摘要 |
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 in2/day/atm when tested at 23 degrees Celsius and 0 percent relative humidity according to ASTM D3985. A method of stripping low molecular weight fractions from the copolymer is also disclosed. Metallized coated film according to the present invention shows surprising barrier properties. |
申请公布号 |
US2003124365(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US20020292783 |
申请日期 |
2002.11.12 |
申请人 |
POSEY ROBERT;CULBERTSON EDWIN C. |
发明人 |
POSEY ROBERT;CULBERTSON EDWIN C. |
分类号 |
B05D7/04;B05D7/24;B32B15/08;B32B27/08;B32B27/30;B32B27/36;B32B33/00;C08J7/04;C08L29/04;C08L33/08;C08L35/00;C09D129/04;(IPC1-7):B32B27/06 |
主分类号 |
B05D7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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