Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic
acid interpolymers
    1.
    发明授权
    Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers 失效
    乙烯/α,β-不饱和羧酸互聚物的水分散体

    公开(公告)号:US5387635A

    公开(公告)日:1995-02-07

    申请号:US924032

    申请日:1992-08-27

    CPC分类号: C08F8/44

    摘要: Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers (e.g., random ethylene/acrylic acid interpolymers) are formed using a mixture of bases at a concentration of at least 0.2 equivalents of base per mole of .alpha.,.beta.-unsaturated carboxylic acid. The dispersions have at least 10 weight percent dispersed solids and not more than 1 weight percent of the initial polymer in non-dispersed form. Preferred bases for use in forming the dispersions are ammonium hydroxide and/or alkali metal hydroxides. A mixture of ammonium hydroxide and potassium hydroxide is especially preferred for forming the dispersions with ethylene/acrylic acid interpolymers at an ammonium hydroxide:acrylic acid molar ratio of 1:1 and a potassium hydroxide:acrylic acid molar ratio in the range of 0.6-0.8:1. The dispersions are particularly useful in forming thin coatings of adhesive on substrates, such as paper and metal foil, using conventional techniques.

    摘要翻译: PCT No.PCT / US92 / 00622 Sec。 371日期:1992年8月27日 102(e)日期1992年8月27日PCT提交1992年1月24日PCT公布。 第WO92 / 13012号公报 日期为1992年8月6日。乙烯/α,β-不饱和羧酸互聚物(例如,无规乙烯/丙烯酸互聚物)的水分散体使用碱的混合物形成,碱的浓度为每摩尔 α,β-不饱和羧酸。 分散体具有非分散形式的至少10重量%的分散固体和不超过1重量%的初始聚合物。 用于形成分散体的优选碱是氢氧化铵和/或碱金属氢氧化物。 氢氧化铵和氢氧化钾的混合物特别优选用氢氧化铵:丙烯酸摩尔比为1:1和氢氧化钾:丙烯酸摩尔比为0.6-0.8的乙烯/丙烯酸互聚物形成分散体 :1。 分散体特别可用于使用常规技术在基材上形成薄的粘合剂涂层,例如纸和金属箔。

    Method of preparing aqueous dispersions of
ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers
    2.
    发明授权
    Method of preparing aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers 失效
    制备乙烯/(ALPHA),(BETA) - 饱和羧酸类嵌段共聚物的水性分散体的方法

    公开(公告)号:US5206279A

    公开(公告)日:1993-04-27

    申请号:US646134

    申请日:1991-01-25

    CPC分类号: C08F8/44

    摘要: Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers (e.g., random ethylene/acrylic acid interpolymers) are formed using a mixture of bases at a concentration of at least about 0.2 equivalents of base per mole of .alpha.,.beta.-unsaturated carboxylic acid. The dispersions have at least about 10 weight percent dispersed solids and not more than about 1 weight percent of the initial polymer in non-dispersed form. Preferred bases for use in forming the dispersions are ammonium hydroxide and/or alkali metal hydroxides. A mixture of ammonium hydroxide and potassium hydroxide is especially preferred for forming the dispersions with ethylene/acrylic acid interpolymers at an ammonium hydroxide:acrylic acid molar ratio of about 1:1 and a potassium hydroxide:acrylic acid molar ratio in the range of about 0.6-0.8:1. The dispersions are particularly useful in forming thin coatings of adhesive on substrates, such as paper and metal foil, using conventional techniques.

    摘要翻译: 乙烯/α,β-不饱和羧酸互聚物(例如,无规乙烯/丙烯酸互聚物)的水分散体使用碱的混合物形成,碱的浓度为每摩尔α,β-不饱和羧酸的至少约0.2当量碱 酸。 分散体具有非分散形式的至少约10重量%的分散固体和不超过约1重量%的初始聚合物。 用于形成分散体的优选碱是氢氧化铵和/或碱金属氢氧化物。 氢氧化铵和氢氧化钾的混合物特别优选用氢氧化铵:丙烯酸摩尔比为约1:1和氢氧化钾:丙烯酸摩尔比在约0.6范围内与乙烯/丙烯酸互聚物形成分散体 -0.8:1。 分散体特别可用于使用常规技术在基材上形成薄的粘合剂涂层,例如纸和金属箔。