Hydrophobic modified polyrotaxane and crosslinked polyrotaxane
US7943718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2006 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G83/007
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To provide a hydrophobic modified polyrotaxane soluble in an organic solvent, and a crosslinked polyrotaxane using this. A hydrophobic modified polyrotaxane has a cyclic molecule, a linear molecule including the cyclic molecule with piercing through the cyclic molecule, and blocking groups which are placed at both end terminals of the linear molecule to prevent the cyclic molecule from leaving from the linear molecule. The cyclic molecule is cyclodextrin, and each of all or a part of the hydroxyl groups in the cyclodextrin is modified with a hydrophobic modification group.A crosslinked polyrotaxane is formed by combining this hydrophobic modified polyrotaxane and a polymer through the cyclic molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.