Heterocyclic red azo colorants for seed treatment applications
US-12338349-B2 · Jun 24, 2025 · US
Method for improving alkali resistance and oxidation resistance of benzothiazole disperse dye
US12187899B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12187899-B2 |
| Application number | US-202117392463-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 3, 2021 |
| Priority date | Aug 27, 2020 |
| Publication date | Jan 7, 2025 |
| Grant date | Jan 7, 2025 |
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.
The disclosure relates to a method for improving the alkali resistance and oxidation resistance of a benzothiazole disperse dye, and belongs to the field of disperse dyes. In the disclosure, 4 kinds of diazo components and 8 kinds of coupling components are used in designing and synthesizing 28 thiazole heterocyclic azo disperse dyes, and the alkali resistance and oxidation resistance of the disperse dyes are improved. Structure confirmation is performed on the synthetic disperse dyes, and the alkali resistance, oxidation resistance and other dyeing properties of the disperse dyes are tested. According to the method for improving the alkali resistance and oxidation resistance of the benzothiazole disperse dye provided in the disclosure, a relationship between a dye structure and the alkali resistance and oxidation resistance is determined, the disperse dyes with excellent alkali resistance and oxidation resistance are obtained, and the dyeing performance is stable under a dyeing condition of 10 g/L of sodium hydroxide or 5 g/L of hydrogen peroxide. This kind of dyes can be applied to a one bath for bleaching and dyeing of polyester and cotton and a one bath for deweighting and dyeing of polyester, dyeing and finishing in a short process are achieved, and great ecological and economic benefits are obtained.
First claim
Opening claim text (preview).
What is claimed is: 1. A benzothiazole disperse dye having the following structural formula:
Assignees
Inventors
Classifications
related technologies for production or treatment of textile or flexible materials or products thereof, including footwear · CPC title
using dispersed dyestuffs · CPC title
Azo dyes · CPC title
using dispersed dyes · CPC title
substituted by alkyl, e.g. CF3 · 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 US12187899B2 cover?
- The disclosure relates to a method for improving the alkali resistance and oxidation resistance of a benzothiazole disperse dye, and belongs to the field of disperse dyes. In the disclosure, 4 kinds of diazo components and 8 kinds of coupling components are used in designing and synthesizing 28 thiazole heterocyclic azo disperse dyes, and the alkali resistance and oxidation resistance of the di…
- Who is the assignee on this patent?
- Univ Qingdao, Penglai Jiaxin Dye Chemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09B29/0088. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 07 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).