Active-energy-ray-curable composition, active-energy-ray-curable ink, composition stored container, image forming method, image forming apparatus, cured material, and image formed matter

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United States of America Patent

PATENT NO 9873804
SERIAL NO

15299739

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Abstract

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Active-energy-ray-curable composition including: monofunctional monomers; and polymerization initiator, cured material of the composition satisfying 0.30≦D≦0.85, where D is difference between peak-area-ratios A and B in infrared-ATR and obtained by: the composition is coated on polycarbonate substrate to form coated film having average thickness of 10 μm; the film is irradiated with active energy rays having light quantity of 500 mJ/cm2 at UV intensity of 1.0 W/cm2 for curing; the A is obtained from Formula (1) by infrared-ATR at one portion present from the cured material surface through 1 μm away therefrom toward the substrate, the B is obtained from Formula (1) by infrared-ATR at one portion present from the substrate-cured material interface through 1 μm away therefrom toward the cured material surface,

description='In-line Formulae' end='lead'Peak-area (from 1,679 m−1 through 1,751 m−1/peak-area (from 1,096 m−1 through 1,130 m−1)  Formula (1), anddescription='In-line Formulae' end='tail'

the A and B obtained are used to obtain D from Formula (2):

description='In-line Formulae' end='lead'D=peak-area-ratio A−peak-area-ratio B  Formula (2).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyano, Masayuki Kanagawa, JP 42 1557
Kumai, Mio Tokyo, JP 20 61
Matsumoto, Mihoko Shizuoka, JP 9 50
Miyaake, Azumi Kanagawa, JP 18 162
Mizutani, Yuuki Kanagawa, JP 18 51
Saito, Shun Kanagawa, JP 82 238

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