Claims
- 1. An aqueous dispersion of improved stability, said dispersion consisting essentially of a mixture of
- (A) 30 to 50% by weight of an ethylene/.alpha.,.beta.-unsaturated carboxylic acid copolymer containing 12 to 20% by weight on an average of .alpha.,.beta.-unsaturated carboxylic acid units or the metal salt there of, and
- (B) 70 to 50% by weight of an ethylene/.alpha.,.beta.-unsaturated carboxylic acid copolymer containing 5 to 12% by weight on an average of .alpha.,.beta.-unsaturated carboxylic acid units or the metal salt there of,
- both components (A) and (B) having a melt index of from 0.5 to 100, said mixture containing 8 to 20% by weight on an average, based on the weight of the mixture of the .alpha.,.beta.-unsaturated carboxylic acid units, 40 to 80% of which units are present in the form of metal salts, and said mixture not containing more than 5% by weight, based on the weight of the mixture, of a fraction of the ethylene/.alpha.,.beta.-unsaturated carboxylic acid having an .alpha.,.beta.-unsaturated carboxylic acid unit content of less than 5% by weight or its salt, and more than 10% by weight, based on the weight of the mixture, of a fraction of the ethylene/.alpha.,.beta.-unsaturated carboxylic acid having an .alpha.,.beta.-unsaturated carboxylic acid unit content of more than 20% by weight or its salt, the .alpha.,.beta.-unsaturated carboxylic acid being selected from the group consisting of acrylic acid, methacrylic acid, .alpha.-ethylacrylic acid, maleic acid, fumaric acid, and itaconic acid and the metal salt being selected from the group consisting of an alkali metal salt, an alkaline earth metal salt and a zinc salt.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54/2879 |
Jan 1979 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 112,087, filed Jan. 14, 1980, now abandoned.
US Referenced Citations (4)
Continuations (1)
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Number |
Date |
Country |
Parent |
112087 |
Jan 1980 |
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