发明名称 |
METHOD OF PREPARING AQUEOUS DISPERSIONS OF ETHYLENE/.ALPHA.,.BETA.-UNSATURATED CARBOXYLIC ACID INTERPOLYMERS |
摘要 |
2077667 9213012 PCTABS00014 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 hydroxyde: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.
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申请公布号 |
CA2077667(A1) |
申请公布日期 |
1992.07.26 |
申请号 |
CA19922077667 |
申请日期 |
1992.01.24 |
申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
ROWLAND, MICHAEL E.;SPRINGS, KENNETH E. |
分类号 |
C08F8/42;C08F8/44;C08J3/05;C08J5/18;C08L23/00;C08L23/26;C08L33/02;C09D123/26;C09D133/02;C09J133/02;(IPC1-7):C08F8/44;C09J123/08;C08L23/08 |
主分类号 |
C08F8/42 |
代理机构 |
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主权项 |
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地址 |
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