Aqueous dispersion of ethylene/.alpha.,.beta.-unsaturated carboxylic acid copolymer blend
US4410655A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Jun 5, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous dispersion of improved stability, said dispersion consisting essentially of a mixture of PA0 (A) 10 to 90% 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 thereof, and PA0 (B) 90 to 10% 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 thereof, 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, 30 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.-unsatura…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.