Particulate ultraviolet absorber and resin composition
US11780990B2 · kind B2 · utility
0Cited by
9References
14Claims
0Family size
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Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Mar 23, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/63
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A particulate ultraviolet absorber is provided and includes a predetermined triazine-based compound, in which in a case where a loose bulk density is denoted by D1 and a tight bulk density is denoted by D2, which are measured under predetermined measurement condition, compressibility represented by [(D2−D1)/D2]×100 is 5.0% or more and 40% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.