Polyurethane derivatives, composition thereof and dye additives comprising the polyurethane derivatives

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United States of America Patent

PATENT NO 8512421
APP PUB NO 20130067664A1
SERIAL NO

13622262

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Abstract

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A polyurethane derivative and a composition thereof are disclosed. The polyurethane derivative of the present invention has a structure of formula (I). The polyurethane derivative and the composition thereof can be used for increasing light fastness.

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Patent Owner(s)

Patent OwnerAddress
EVERLIGHT CHEMICAL INDUSTRIAL CORPORATION6 FLOOR NO 77 SEC 3 TUN HUA SOUTH ROAD TAIPEI CITY 106

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiang, Hsiang-Lin Taoyuan, TW 1 1
Chou, Der-Gun Taoyuan, TW 8 7
Ko, Tzu-Heng Taoyuan, TW 6 2
Lee, Sheue-Rong Taoyuan, TW 3 5
Lu, Hsin-Ying Taoyuan, TW 7 6

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