Star/comb-branched polyamine
US4690985A · kind A · utility
27Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Mar 7, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Star/comb-branched polyamides having good resistance to degradation upon exposure to shear are prepared by reacting polyvalent core compounds such as tribromoneopentyl alcohol with an oxazoline such as 2-ethyl-2-oxazoline to provide the desired polyamide. The polyamides are readily hydrolyzed with acid such as hydrochloric acid to form star/comb-branched polyamines. The polyamides and the polyamines are useful as viscosity enhancing agents in such applications as paints, mobility control agents and hydraulic fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.