发明名称 |
Polyamine-polyepoxide gas barrier coatings |
摘要 |
Barrier materials for reducing the permeability of plastic packaging materials are provided, characterized as containing at least about seven percent by weight amine nitrogen, or a total of at least about 17 percent amine nitrogen plus hydroxyl groups. The barrier materials exhibit oxygen permeability of less than about 1.5 cc-mil/100 in2-day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in2-day-atmosphere at 23 degrees C. and zero percent relative humidity. The barrier material can be formed from polyepoxide and polyamine. Optionally the polyamine may comprise prereacted polymeric resin formed from a polyepoxide and a polyamine. Multilayer packaging materials and multilayer containers including the polyamine-polyepoxide barrier material are part of the invention.
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申请公布号 |
US5300541(A) |
申请公布日期 |
1994.04.05 |
申请号 |
US19910767458 |
申请日期 |
1991.09.30 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
NUGENT, JR., RICHARD M.;NIEDERST, KEN W.;SEINER, JEROME A. |
分类号 |
C08G59/18;C08G59/50;C08J7/04;C09D163/00;(IPC1-7):C08K3/20;C08K5/06;C08L63/02 |
主分类号 |
C08G59/18 |
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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