Thermoplastic polyurethanes containing a salt of zirconium phosphate
US7772309B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Oct 9, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic polyurethane (TPU) compositions are disclosed comprising TPU polymer, polyisocyanate, and a salt of zirconium phosphate. The compositions have enhanced thermal properties, good processability, and good hydrolysis resistance. Processes are also disclosed to combine the ingredients by melt mixing or to prepare the compositions in-situ as the TPU is being polymerized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.