Controlled structure copolymer comprising an amphoteric or zwitterionic part
US7737237B2 · kind B2 · utility
5Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2003 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Aug 14, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/54
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention concerns a controlled structure copolymer comprising at least two different parts, a first part A, amphoteric or zwitterionic, including anionic or potentially anionic units, and cationic or potentially cationic units, or zwitterionic units, and another part B, non amphoteric or zwitterionic. Said copolymer further exhibits a high potential for adaptation, through variation in its composition, in order to improve or modify the properties of compositions in which it is introduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.