# US 9,518,011 B2 · Recording material produced using non-phenol compound

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

- Number: US 9,518,011 B2
- Document ID: US9518011B2
- Status: Granted
- Kind: B2
- Application number: 14/441,941
- Filed: 2013-11-19
- Published: 2015-10-08
- Granted: 2016-12-13
- Earliest claimed: 2012-11-21
- Assignees: Nippon Soda Co., Ltd.
- Applicants: Nippon Soda Co., Ltd.
- Inventors: Hiroshi Sakai; Tadahiro Kondo; Kayoko Tada; Shuntaro Kinoshita; Kazumi Jyujyo
- Web page: https://patentgrep.com/patent/US9518011B2

## CPC

- C07C 311/47: Y being a hetero atom
- B41M 5/155: Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
- B41M 5/3333: {Non-macromolecular compounds}
- B41M 5/3336: {Sulfur compounds, e.g. sulfones, sulfides, sulfonamides}
- C07C 311/21: having the nitrogen atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
- C07C 311/29: having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
- C07C 311/46: Y being a hydrogen or a carbon atom
- C09B 57/00: Other synthetic dyes of known constitution
- C09B 69/109: {containing other specific dyes}
- C09D 11/037: characterised by the pigment
- Y10T 428/24802: Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)
- C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).

## Claims

### Claim 1

A recording composition containing a color former, wherein the recording composition contains at least one compound selected from the group consisting of:
a compound represented by the following formula (I):
where:
R1, R2, and R3 each independently represents a hydrogen atom, a halogen atom, a nitro group, a C1-C6 alkyl group, a C1-C6 alkoxyl group, a C2-C6 alkenyl group, a C1-C6 fluoroalkyl group, a N(R4)2 group, NHCOR5, an optionally substituted phenyl group, or an optionally substituted benzyl group;
R4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C1-C6 alkyl group;
R5 represents a C1-C6 alkyl group;
n1 and n3 each independently represents any integer of 1 to 5; and
n2 represents any integer of 1 to 4;
a compound represented by the following formula (II):
where:
R1, R2, R3, n2, and n3 are as defined above; and
n4 represents any integer of 1 to 7); and
a compound represented by the following formula (III):
where R1, R2 , R3, n2, n3, and n4 are as defined above.

### Claim 2 (depends on 1)

The recording composition according to claim 1, wherein the formula (I) is the following formula (IV):
where R1 and R3 are as defined in claim 1.

### Claim 3 (depends on 1, 2)

The recording composition according to claim 2, wherein the formula (I) is the following formula (V):
where R1 is as defined in claim 1.

### Claim 4 (depends on 3)

A recording sheet having a recording composition layer formed from the recording composition according to claim 3 on a support.

### Claim 5 (depends on 2)

A recording sheet having a recording composition layer formed from the recording composition according to claim 2 on a support.

### Claim 6 (depends on 1)

The recording composition according to claim 1, wherein the formula (I) is the following formula (V):
where R1 is as defined in claim 1.

### Claim 7 (depends on 6)

A recording sheet having a recording composition layer formed from the recording composition according to claim 6 on a support.

### Claim 8 (depends on 1)

A recording sheet having a recording composition layer formed from the recording composition according to claim 1 on a support.