Foaming thermoplastic polyurethane resin, producing method thereof, and molded article
US10633483B2 · kind B2 · utility
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6References
10Claims
0Family size
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Key dates
| Filing date | Nov 14, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Nov 14, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A foaming thermoplastic polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane and a polyol component. In a peak of chromatogram obtained by measurement of the foaming thermoplastic polyurethane resin with gel permeation chromatography, the area of a high molecular weight component having a weight average molecular weight of 400,000 or more with respect to the total area of the peak is 25% or more and 60% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.