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US 11,126,101 B2Granted
Yellow toner
AssigneeZeon Corporation
InventorKojiro Akazaki
Life of this patent
Estimating the term…
Abstract
A yellow toner which provides, even in small amounts, a sharper color and brighter gloss, and higher reflection density than ever before, and which has excellent light resistance. The yellow toner contains a binder resin and a yellow colorant, wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained:
Claims4
A yellow toner comprising a binder resin and a yellow colorant,
- wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained:
- where R1A, R1B, R2A and r2B are each independently a halogen atom, an alkyl group, an alkoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH3), a methyl ester group (—COOCH3), a primary amide group (—CONH2) or an arylamide group (—CONHAr);
- R3A and R3B are each independently a halogen atom or an alkyl group;
- R4 and R5 are each independently a halogen atom, an alkyl group, a methoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH3), an acetyl group (—COCH3), a methyl ester group (—COOCH3) or a primary amide group (—CONH2);
- a1 and b1 are non-negative integers that a sum of the non-negative integers a1 and b1 is 1 or more and 3 or less;
- a2 and b2 are non-negative integers that a sum of the non-negative integers a2 and b2 is 1 or more and 3 or less;
- c1 and c2 are non-negative integers that a sum of the non-negative integers c1 and c2 is 0 or more and 3 or less;
- d and e are each independently 1 or 2;
- Ar is an aryl group having 6 to 10 carbon atoms, which may have a substituent,
- where R6A and R6B are each independently a halogen atom, an alkyl group, an alkoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH3), a methyl ester group (—COOCH3), a primary amide group (—CONH2) or an arylamide group (—CONHAr);
- R7 and R8 are each independently a halogen atom, an alkyl group, a methoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH3), an acetyl group (—COCH3), a methyl ester group (—COOCH3) or a primary amide group (—CONH2);
- f1 and f2 are non-negative integers that a sum of the non-negative integers f1 and f2 is 1 or more and 3 or less;
- g is an integer of 0 or more and 3 or less;
- h is 1 or 2;
- Ar is an aryl group having 6 to 10 carbon atoms, which may have a substituent and
12 more elements
Dependencies are inferred from the claim text.