Non-crystalline polyester resin, and binder resin and binder resin dispersion for toner

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United States of America Patent

PATENT NO 9234072
APP PUB NO 20140275412A1
SERIAL NO

14353071

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Abstract

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An amorphous polyester resin of the invention is obtained by reaction between a polyester resin (A), obtained by reaction between a polyhydric alcohol component and a first poly-carboxylic acid component, either or both including a 3 or higher valent component, and having a weight-average molecular weight of 6,000 to 40,000 and a hydroxyl value of 15 to 70 mgKOH/g, and a second poly-carboxylic acid component (a), under conditions satisfying the following equations (1), (2) and (3), and the amorphous polyester resin satisfying the following equation (4).

description='In-line Formulae' end='lead'(AVB−AVA)/AVa=0.5-0.7  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'MwB/MwA=1.1-2.0  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'OHVB/AVB=1.0-6.0  (3)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'MwB/MnB=3.0-15.0  (4)description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
NICCA CHEMICAL CO LTD23-1 BUNKYO 4-CHOME FUKUI-SHI FUKUI 9108670 ?9108670

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hosoda, Masaaki Fukui, JP 12 22
Moriyama, Yasumichi Fukui, JP 3 12
Nishino, Masakazu Fukui, JP 72 1472
Ogawa, Koji Fukui, JP 66 1047

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