Recording material and recording sheet
US-2018022137-A1 · Jan 25, 2018 · US
Recording material and recording sheet
US11370240B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11370240-B2 |
| Application number | US-201816478161-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2018 |
| Priority date | Jan 30, 2017 |
| Publication date | Jun 28, 2022 |
| Grant date | Jun 28, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A recording material and a recording sheet having better color-developing performance, storage stability, etc. A recording material which contains (A) at least one color former, (B) at least one compound selected from the group including compounds represented by the following formula (I), and (C) at least one compound selected from the group including compounds represented by the following formula (II)(wherein R1 to R3 each represent a halogen atom, a nitro group, a C1 to C6 alkyl group, a C1 to C6 alkoxy group, a C2 to C6 alkenyl group or a C1 to C6 haloalkyl group, n1 and n3 each independently represent any integer of 0 to 5, n2 represents any integer of 0 to 4, and X represents —SO2—O— or —O—SO2—).
First claim
Opening claim text (preview).
The invention claimed is: 1. A recording material comprising (A) at least one color former, (B) at least one compound selected from the group consisting of compounds represented by the following formula (I): and (C) at least one compound selected from the group consisting of compounds represented by the following formula (II): wherein R 1 to R 3 each represent a halogen atom, a nitro group, a C 1 to C 6 alkyl group, a C 1 to C 6 alkoxy group, a C 2 to C 6 alkenyl group or a C 1 to C 6 haloalkyl group, n1 and n3 each independently represent any integer of 0 to 5, n2 represents any integer of 0 to 4, and X represents —SO 2 —O— or —O—SO 2 —, wherein the recording material does not comprise N-(2-(3-phenylureido)phenyl)benzenesulfonamide. 2. The recording material according to claim 1 , wherein the compound represented by the above formula (I) is at least one compound selected from 4,4′-diaminodiphenyl sulfone and 3,3′-diaminodiphenyl sulfone. 3. The recording material according to claim 1 , wherein the compound represented by the above formula (II) is a compound represented by the following formula (III): wherein R 1 and R 3 are the same as R 1 and R 3 in formula (II). 4. The recording material according to claim 3 , wherein the compound represented by the above formula (III) is N-(p-toluenesulfonyl)-N′-(3-p-toluenesulfonyloxyphenyl)urea. 5. The recording material according to claim 1 , wherein the color former is a fluoran-based dye. 6. A recording sheet having a recording material layer formed from the recording material according to claim 1 on a support.
Assignees
Inventors
Classifications
Fluoran compounds · CPC title
Organic colour formers, e.g. leuco dyes · CPC title
Additives; Binders {(B41M5/46 takes precedence)} · CPC title
Organic colour formers, e.g. leuco dyes · CPC title
characterised by fluoran compounds · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11370240B2 cover?
- A recording material and a recording sheet having better color-developing performance, storage stability, etc. A recording material which contains (A) at least one color former, (B) at least one compound selected from the group including compounds represented by the following formula (I), and (C) at least one compound selected from the group including compounds represented by the following form…
- Who is the assignee on this patent?
- Nippon Soda Co
- What technology area does this patent fall under?
- Primary CPC classification B41M5/327. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).