Toner

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United States of America Patent

PATENT NO 9134637
APP PUB NO 20140099578A1
SERIAL NO

14103836

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The toner of the present invention includes toner particles containing polyester resins A and B and a colorant, the A has a polyester portion including a portion capable of forming a crystal structure and a crystal nucleating agent portion, which is bonded to an end of the polyester portion, the B is free from any portions capable of forming a crystal structure, in a chart obtained as a result of GPC of a THF-soluble matter of the B, a ratio of a component having a molecular weight of 1500 or less in the B is 5.0 to 15.0% by area, and when an SP value of the polyester portion of the A is represented by Sa ((cal/cm3)1/2) and an SP value of the B is represented by Sb ((cal/cm3)1/2), the SP values Sa and Sb satisfy the following relationships:

description='In-line Formulae' end='lead'9.50≦Sa≦11.00description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'−0.65≦Sb−Sa≦0.70.description='In-line Formulae' end='tail'

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First Claim

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukudome, Kosuke Tokyo, JP 47 717
Hotta, Yojiro Mishima, JP 46 1299
Ida, Tetsuya Mishima, JP 46 1025
Mita, Satoshi Mishima, JP 29 403
Moribe, Shuhei Mishima, JP 35 904
Terauchi, Kazuo Numazu, JP 29 804

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