1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens
US9477012B2 · kind B2 · utility
2Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Jun 5, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jun 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.1 ppm or more and 300 ppm or less of the compound represented by formula (1) below:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.