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    • 5. 发明公开
    • A nanohybrid of a phenolic acid uv-screening agent with a layered metal hydroxide, a process for the preparation thereof, and a composition for uv screening comprising the same
    • 具有层状金属氢氧化物的酚醛紫外线屏蔽剂的纳米纤维,其制备方法和包含其的紫外线筛选的组合物
    • KR20100127000A
    • 2010-12-03
    • KR20090045475
    • 2009-05-25
    • CNPHARM CO LTD
    • CHOY JIN HOPARK DAE HWANPARK YOON MIBISWICK TIMOTHY
    • B82B1/00B82B3/00
    • PURPOSE: A nanohybrid of a phenolic acid UV absorbent and a layered metal hydroxide, a producing method thereof, and an anti-ultraviolet ray composition containing thereof are provided to improve the stability of the phenolic acid UV absorbent. CONSTITUTION: A nanohybrid contains a phenolic acid UV absorbent inserted among layers of a layered metal hydroxide. The layered metal hydroxide is marked with either chemical formula 1: [M(II)1-xM(III)x(OH)2]X+(An-)X/n·yH2O, or chemical formula 2: [M(II)(OH)x'](An-)(2-x')/n·yH2O. In the chemical formulas, M(II) is a divalent metal positive ion, and M(III) is a trivalent positive ion. A producing method of the nanohybrid comprises a step of forming a phenolic acid UV absorbent and divalent metal positive ion solution, and a step of titrating the solution to obtain precipitates.
    • 目的:提供酚酸UV吸收剂和层状金属氢氧化物的纳米杂化物,其制备方法和含有它们的抗紫外线组合物,以提高酚酸UV吸收剂的稳定性。 构成:纳米混合物包含插入层状金属氢氧化物层之间的酚酸UV吸收剂。 层状金属氢氧化物用化学式1表示:[M(II)1-xM(III)x(OH)2] X +(An-)X / n·yH 2 O或化学式2:[M(II) (OH)X '](安 - )(2-X')/ N·yH2O。 在化学式中,M(II)是二价金属正离子,M(III)是三价正离子。 纳米混合物的制造方法包括形成酚酸UV吸收剂和二价金属正离子溶液的步骤,以及滴定溶液以获得沉淀物的步骤。