Amphiphilic polymers and method of making said polymers
US4888389A · kind A · utility
46Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1985 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4833
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Amphiphilic polymers having poly A segments of wide molecular weights, viz., about 2,000 to 50,000, and poly B segments of wide molecular weight of a few hundred to 13,000 or more can be made by reacting without regard to sequence, isocyanate with either a poly A segment or a poly B segment to give an adduct containing free NCO groups on each segment and then react the adduct with the other segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.