Block copolymer
US4540747A · kind A · utility
10Cited by
6References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 29, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | May 29, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Block copolymers of poly(N-formylethyleneimine) or poly(N-acetylethyleneimine) with poly(N-acylethyleneimine or poly(N-acylpropyleneimine) having a molecular weight of 500 to 50,000 and a method for their production. These block copolymers are useful as surface active agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.