发明名称 |
IMPROVED BARRIER LAYER |
摘要 |
<p>Disclosed herein is a barrier layer comprising a polyvinyl amine-polyvinyl alcohol copolymer applied to a substrate as a water-soluble composition, wherein the polyvinyl amine-polyvinyl alcohol copolymer is formed by copolymerizing: (a) from 99 to 1 mol% of N-vinylformamide and (b) from 1 to 99 mol% of one or more vinyl Ci-Ci0 alkyl esters, and then hydrolyzing from 30 to 100 mol% of the formyl groups from the copolymerized units (a) to form amino groups and from 30 to 100 mol% of the Cj-Cio alkyl ester groups from the copolymerized units (b) to form hydroxyl groups, wherein the copolymer has a unimodal compositional distribution as evidenced by essentially one peak in a gel permeation gradient elution chromatographic analysis. A method of producing a barrier layer is also disclosed.</p> |
申请公布号 |
CA2737036(C) |
申请公布日期 |
2014.05.20 |
申请号 |
CA20092737036 |
申请日期 |
2009.09.11 |
申请人 |
SEKISUI SPECIALTY CHEMICALS AMERICA, LLC |
发明人 |
BRONDSEMA, PHILIP J.;COULSON, NANCY S.;CUPTA, MARK G.;VICARI, RICHARD |
分类号 |
C08F8/12;B32B27/00;C09D129/04;C09D139/04 |
主分类号 |
C08F8/12 |
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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