Borate and near-infrared ray absorption material
US7887920B2 · kind B2 · utility
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8References
16Claims
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Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Feb 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A borate for a near-infrared ray absorption material, having an anion represented by the formula (1): [BR1mR24-m]− (wherein R1 represents an aryl group having an electron withdrawing group; R2 represents an organic group, a halogen group or a hydroxyl group; and m is an integer in the range of 1 to 4) is provided. The borate of the present invention enables to improve durability, in particular, heat resistance and moisture resistance of a near-infrared ray absorbing dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.