Manufacture of polymers of acrylic acid or methacrylic acid
US4301266A · kind A · utility
44Cited by
0References
5Claims
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Assignee
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Key dates
| Filing date | Dec 1, 1978 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Dec 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/912
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for the production of polymers of acrylic acid or methacrylic acid by polymerizing acrylic acid or methacrylic acid in isopropanol or in a water-isopropanol mixture containing at least 40% by weight of isopropanol in the presence of polymerization initiators at a temperature of from 120.degree. to 200.degree. C. under pressure. The polymers obtained are used as dispersing agents for inorganic pigments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.