Ultraviolet absorber having excellent heat resistance and long-wavelength absorption

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United States of America

PATENT NO 12252474
APP PUB NO 20220162174A1
SERIAL NO

17439716

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Abstract

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Provided is an ultraviolet absorber with a high molar extinction coefficient that is particularly superior in heat resistance, odor suppression at the time of thermal decomposition and long-wavelength absorption, as compared to a conventional ultraviolet absorber. The ultraviolet absorber is an ultraviolet absorber comprising a 2-phenylbenzotriazole derivative having a bonding group represented by the following formula (I) or (II):

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Patent Owner(s)

Patent OwnerAddress
MIYOSHI OIL & FAT CO LTD66-1 HORIKIRI 4-CHOME KATSUSHIKA-KU TOKYO 1248510 ?1248510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaneko, Kotaro Tokyo, JP 35 70
Kaneko, Nobuhiro Tokyo, JP 26 148
Kawai, Koji Tokyo, JP 142 1328
Nakamura, Daisuke Tokyo, JP 272 2169

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