Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts
US4622425A · kind A · utility
15Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1982 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Dec 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the manufacture of low molecular weight polyacrylic acids or their salts is provided, particularly, their aqueous solutions. Acrylic acid in an aqueous solution containing a polymerization initiator is polymerized in the presence of acetic acid and/or propionic acid. The solutions obtained have a low viscosity and are very stable on storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.