Block copolymers from macrocyclic oligoesters and dihydroxyl-functionalized polymers
US6436549B1 · kind B1 · utility
33Cited by
77References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jul 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Block copolymers are prepared from polymerization of a macrocyclic oligoester and a dihydroxyl-functionalized polymer at an elevated temperature in the presence of a polymerization catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.