Elastomer, method for preparation thereof, and use thereof
US11168171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2017 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J19/126
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a segmented thermoplastic elastomer that can be a polyurethane, polyurea, or polyurethane-urea comprising soft segments and hard segments, wherein the soft segments are made of polyolefin diols or polyolefin diamine that may have 0 to 1000 carbon atoms in the main chain, wherein each carbon atom in the main chain may have 0 to 2 side chains and each side chain may have 0 to 30 carbon atoms, the hard segment is made of a diisocyante and a chain extender, the hard segments make up 10-60% of the elastomer and the soft segments make up the rest, the number-average molecular weight of the elastomer is 5×103-1000×103 g/mol, the ultimate elongation of the elastomer is 100-1000%, the Young's modulus is 1 to 3,000 MPa, and the ultimate tensile strength is 10-100 MPa. Also disclosed are a method for preparing the segmented thermoplastic elastomer and use of segmented thermoplastic elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.