# US 8,568,947 B2 · Green toner for developing static latent image and full color image forming method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,568,947 B2
- Document ID: US8568947B2
- Status: Granted
- Kind: B2
- Application number: 13/372,154
- Filed: 2012-02-13
- Published: 2012-08-30
- Granted: 2013-10-29
- Earliest claimed: 2011-02-25
- Assignees: Konica Minolta Business Technologies, Inc.
- Applicants: Yohei Ohno; Hajime Tadokoro; Kaori Matsushima; Hiroyuki Yasukawa; Ito Koga
- Inventors: Yohei Ohno; Hajime Tadokoro; Kaori Matsushima; Hiroyuki Yasukawa; Ito Koga
- Web page: https://patentgrep.com/patent/US8568947B2

## CPC

- G03G 9/0926: {characterised by physical or chemical properties}
- G03G 9/0906: {Organic dyes}
- G03G 9/0928: {Compounds capable to generate colouring agents by chemical reaction}
- G03G 2215/0135: the linear arrangement being vertical
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

Disclosed is a green toner for developing a static latent image containing a binder resin and a colorant, and the colorant contains C.I. Solvent Green 5 and colorant compound X represented by Formula (1), and content ratio of C.I. Solvent Green 5 in whole amount of the colorant is 5 to 50% by weight, in the Formula (1), M1 is a metal atom of Group 14, Q is independently a monovalent substituent, m and n are each 0 or 1, at least one of m and n is 1, and A is independently an atomic group forming an aromatic ring which may have a substituent.

## Claims

### Claim 1

A green toner for developing a static latent image comprising a binder resin and a colorant, wherein the colorant contains C.I. Solvent Green 5 and colorant compound X represented by Formula (1), and a content ratio of C.I. Solvent Green 5 is 5 to 50% by weight based on total weight of the colorant,
in Formula (1), M1 is Si, Ge or Sn, Q is independently a monovalent substituent, m and n are each 0 or 1, at least one of in and n is 1, and A is independently an atomic group forming an aromatic ring which may have a substituent.

### Claim 2 (depends on 1)

The green toner of claim 1, wherein M1 is Si.

### Claim 3 (depends on 1)

The green toner of claim 1, wherein each of Q is an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an acyloxy group or a group represented by Formula (2), independently.
in Formula (2), R1 through R3 represents independently an alkyl group, an aryl group, an alkoxy group or an aryloxy group.

### Claim 4 (depends on 3)

The green toner of claim 3, wherein two of Q is an alkoxy group or a group represented by Formula (2), independently.

### Claim 5 (depends on 4)

The green over of claim 4, wherein two of Q is independently —O(CH2)3CH3, —O(t-C4H9), —O(CH2)5CH3, —O(CH2)7CH3, —O(t-C8H17), —OC6H6, —OCO—CH2CH2CH3, —OSi(CH3)3, —OSi(CH2CH3)3 or —OSi(CH2CH2CH3)3.

### Claim 6 (depends on 4)

The green toner of claim 4, wherein the Compound X is represented by formula X-1 through formula X-6.

### Claim 7 (depends on 1)

The green toner of claim 1, wherein the content ratio of C.I. Solvent Green 5 is 10 to 40% by weight based on total weight of colorant.

### Claim 8 (depends on 1)

The green toner of claim 1, wherein two of Q is a group represented by Formula (2).

### Claim 9 (depends on 1)

The green toner of claim 1, wherein four A's are independently an atomic group represented by formula (A-1) through (A-7).

### Claim 10 (depends on 1)

The green toner of claim 1, wherein four A's are independently an atomic group represented by formula (a-1) through (a-7).

### Claim 11 (depends on 1)

A full color image forming method employing the green toner of claim 1 in combination with a yellow toner, a magenta toner, a cyan toner and a black toner.