Combination of crosslinked cationic and ampholytic polymers for personal and household applications
US-9017652-B1 · Apr 28, 2015 · US
Chloride-free cationic polymers using acetate anions
US11230616B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11230616-B2 |
| Application number | US-201816632454-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 20, 2018 |
| Priority date | Jul 24, 2017 |
| Publication date | Jan 25, 2022 |
| Grant date | Jan 25, 2022 |
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Abstract
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A composition contains ethylenically unsaturated quaternary ammonium cations with acetate counterions, where each of the ethylenically unsaturated ammonium cations contain only one non-aromatic carbon-carbon double bond and the composition contains less than one mole-percent chloride relative to quaternary ammonium cations can be polymerized to form a cationic polymer acetate.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a cationic polymer from a composition comprising ethylenically unsaturated quaternary ammonium cations with acetate counterions where each of the ethylenically unsaturated ammonium cations contain only one non-aromatic carbon-carbon double bond and the composition contains less than one mole-percent chloride relative to quaternary ammonium cations, the method comprising polymerizing the ethylenically unsaturated quaternary ammonium cations by free radical polymerization of the carbon-carbon double bond so as to produce a cationic polymer having quaternary ammonium pendant functionality with acetate counterions; wherein the mole ratio of ethylenically unsaturated quaternary ammonium cations to acetate anions is in a range of 1:0.9 to 1:1.1 at a pH of 8; wherein the unsaturated ammonium cations contain only one non-aromatic carbon-carbon double bond; wherein the ethylenically unsaturated quaternary ammonium cations have the structure of Formula I: where A is CH 2 , B is hydrogen; and C is of Formula III, where Formula III is: where R 7 -R 11 are hydrogen. 2. A cationic polymer having multiple quaternary ammonium pendant functionalities with acetate counterions, wherein the quaternary ammonium pendant functionalities have a structure of that in the brackets of Formula (IV): where A is CH 2 , B is hydrogen; and C is of Formula III, where Formula III is: where R 7 -R 11 are hydrogen. 3. The cationic polymer of claim 2 , wherein the cationic polymer has an weight-average molecular weight between 2,000 and 100,000 Daltons as determined by gel permeation chromatography.
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Classifications
- C11D3/3769Primary
(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines · CPC title
containing no aromatic rings in the alcohol moiety · CPC title
Monomers containing only one unsaturated aliphatic radical · CPC title
by a single or double bond to nitrogen · CPC title
and containing one or more carboxylic moiety in the chain, e.g. acetoacetoxyethyl(meth)acrylate · CPC title
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- What does patent US11230616B2 cover?
- A composition contains ethylenically unsaturated quaternary ammonium cations with acetate counterions, where each of the ethylenically unsaturated ammonium cations contain only one non-aromatic carbon-carbon double bond and the composition contains less than one mole-percent chloride relative to quaternary ammonium cations can be polymerized to form a cationic polymer acetate.
- Who is the assignee on this patent?
- Rohm & Haas, Union Carbide Corp
- What technology area does this patent fall under?
- Primary CPC classification C11D3/3769. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 25 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).