Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof
US6399713B1 · kind B1 · utility
45Cited by
52References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A block copolymer of the formula hydrocarbon-polyether-polyamide-polyether-hydrocarbon is described. The copolymer may be prepared by reacting together reactants that include dimer acid, diamine, and a polyether having both hydrocarbon termination and termination selected from one of amine, hydroxyl and carboxyl. The copolymer may be combined with a solvent to form a gel, where the gel may be transparent and may be incorporated into household and consumer products including antiperspirants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.