Method of producing thermoplastic elastomers and polymer composite obtained thereby
US12024616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2022 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Feb 3, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/006
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of producing a thermoplastic elastomer includes providing a polyether composition comprising at least a first diol terminated polyether having a number average molecular weight of 400-6000 and up to 15 wt % of fumed silica having C1-C8 alkylsilyl groups or acrylate or methacrylate ester groups at its surface, combining the polyether composition with optional additional first polyether and either a) at least one dicarboxylic acid and at least one organic diol having a molecular weight less than 250 or b) at least one dicarboxylate terminated polyamide, to form a prepolymer composition, and allowing the prepolymer composition to polymerize to form a thermoplastic elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.