Leuco triphenylmethane colorants as bluing agents in laundry care compositions
US-10723982-B2 · Jul 28, 2020 · US
Leuco triphenylmethane colorants as bluing agents in laundry care compositions
US11053460B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11053460-B2 |
| Application number | US-201916697317-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2019 |
| Priority date | May 4, 2015 |
| Publication date | Jul 6, 2021 |
| Grant date | Jul 6, 2021 |
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.
This application describes laundry care compositions that contain leuco colorants and their use in the laundering of textile articles. These types of colorants are provided in a stable, substantially colorless state and then may be transformed to an intense colored state upon exposure to certain physical or chemical changes such as, for example, exposure to oxygen, ion addition, exposure to light, and the like. The laundry care compositions containing the leuco colorants are designed to enhance the apparent or visually perceived whiteness of, or to impart a desired hue to, textile articles washed or otherwise treated with the laundry care composition.
First claim
Opening claim text (preview).
We claim: 1. A leuco triphenylmethane colorant according to the following structure: 2. A leuco triphenylmethane colorant according to the following structure: 3. A leuco triphenylmethane colorant according to the following structure:
Assignees
Inventors
Classifications
- C11D3/42Primary
Brightening agents {; Blueing agents} · CPC title
containing a diaryl- or triarylmethane dye · CPC title
Dyes not provided for by a single group of this subclass · CPC title
without any OH group bound to an aryl nucleus · CPC title
Amino derivatives of triarylmethanes · 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 US11053460B2 cover?
- This application describes laundry care compositions that contain leuco colorants and their use in the laundering of textile articles. These types of colorants are provided in a stable, substantially colorless state and then may be transformed to an intense colored state upon exposure to certain physical or chemical changes such as, for example, exposure to oxygen, ion addition, exposure to lig…
- Who is the assignee on this patent?
- Milliken & Co
- What technology area does this patent fall under?
- Primary CPC classification C11D3/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 06 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).