IMPROVED BARRIER LAYER
    1.
    发明申请
    IMPROVED BARRIER LAYER 审中-公开
    改进障碍层

    公开(公告)号:US20110159308A1

    公开(公告)日:2011-06-30

    申请号:US12998036

    申请日:2009-09-11

    IPC分类号: B32B27/30 C09D139/02

    摘要: 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.

    摘要翻译: 本文公开了包含作为水溶性组合物施用于基材的聚乙烯胺 - 聚乙烯醇共聚物的阻隔层,其中所述聚乙烯胺 - 聚乙烯醇共聚物通过共聚合形成:(a)99至1mol%的N- 乙烯基甲酰胺和(b)1至99摩尔%的一种或多种乙烯基C 1 -C 10烷基酯,然后从共聚单元(a)中将30至100摩尔%的甲酰基水解形成氨基,并从30至 100摩尔%的共聚单元(b)中的C 1 -C 10烷基酯基团形成羟基,其中共聚物具有单峰组成分布,如凝胶渗透梯度洗脱色谱分析中基本上一个峰所证明的。 还公开了制造阻挡层的方法。