Production of a block copolymer containing hydrophilic and hydrophobic blocks
US4242474A · kind A · utility
12Cited by
9References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Sep 24, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/92
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A block copolymer expressed by the general formula: ##STR1## X.sub.1 is a group derived from the polymerization of .alpha.-substituted acrylic acid hydroxy ester, X.sub.2 is a polyoxyalkylene, R.sub.1 is a divalent hydrocarbon group, R.sub.2 is a hydrogen atom or methyl group, and R.sub.3 is a divalent hydrocarbon-based group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.