Re-usable cement forms
    4.
    发明授权
    Re-usable cement forms 失效
    可重复使用的水泥形式

    公开(公告)号:US5510198A

    公开(公告)日:1996-04-23

    申请号:US392455

    申请日:1995-02-22

    摘要: This invention relates to a panel of material comprising a film comprising a layer of a solid polyolefin and a layer of copolyester wherein said copolyester comprises:(1) a dicarboxylic acid component comprising repeat units from at least 90 mole percent terephthalic acid; and(2) a diol component comprising repeat units from 20 to 40 mole percent diethylene glycol and 80 to 60 mole percent ethylene glycol, based on 100 mole percent dicarboxylic acid and 100 mole percent diol,said layer of a copolyester being intimately bonded to a wooden substrate and said polyolefin layer being exposed on the outer surface of said film.

    摘要翻译: 本发明涉及一种包含一层薄膜的材料,该薄膜包括固体聚烯烃层和共聚酯层,其中所述共聚酯包括:(1)二羧酸组分,其包含至少90摩尔%对苯二甲酸的重复单元; 和(2)二醇组分,其包含基于100摩尔%二羧酸和100摩尔%二醇的20至40摩尔%二甘醇和80至60摩尔%乙二醇的重复单元,所述共聚酯层紧密结合至 木质基材和所述聚烯烃层暴露在所述膜的外表面上。