Polymer compositions having fast hydration rate and use of the same for particle suspension

Patent metadata

Field	Value
Publication number	US-11535739-B2
Application number	US-202016816753-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Mar 15, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

Provided herein, inter alia, are polymeric compositions and systems useful for maintaining particle dispersions for extended periods of time. Also provided are dry polymeric compositions and systems that are able to undergo fast hydration. Methods for using such compositions and systems are also provided.

First claim

What is claimed:

1. A composition comprising:
i) at least one hydrophobic monomer selected from the group consisting of lauryl (meth)acrylate;
ii) at least one hydrophilic monomer selected from the group consisting of acrylamide;
iii) at least one glycol ether having a structure of

wherein R 1 is hydrogen; R 2 is C 1 -C 8 is alkyl; p and q are the same or different and p and q are independently an integer from 1 to 6,
Wherein the composition, after micellar polymerization, has a hydration rate of about 70% or greater after 3 minutes.

2. The composition of claim 1 , wherein p and q are independently 2 or 3.

3. The composition of claim 1 , wherein the glycol ether comprises one or more selected from the group consisting of diethylene glycol methyl ether, diethylene glycol ethyl ether, diethylene glycol propyl ether, diethylene glycol n-butyl ether, diethylene glycol t-butyl ether, diethylene glycol pentyl ether, diethylene glycol hexyl ether, diethylene glycol heptyl ether, diethylene glycol octyl ether, diethylene glycol phenyl ether, diethylene glycol methyl ether acetate, diethylene glycol ethyl ether acetate, diethylene glycol propyl ether acetate, diethylene glycol n-butyl ether acetate, diethylene glycol t-butyl ether acetate, diethylene glycol pentyl ether acetate, diethylene glycol hexyl ether acetate, diethylene glycol heptyl ether acetate, diethylene glycol octyl ether acetate, diethylene glycol phenyl ether acetate, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol n-butyl ether, dipropylene glycol t-butyl ether, dipropylene glycol pentyl ether, dipropylene glycol hexyl ether, dipropylene glycol heptyl ether, dipropylene glycol octyl ether, dipropylene glycol phenyl ether, dipropylene glycol methyl ether acetate, dipropylene glycol ethyl ether acetate, dipropylene glycol propyl ether acetate, dipropylene glycol n-butyl ether acetate, dipropylene glycol t-butyl ether acetate, dipropylene glycol pentyl ether acetate, dipropylene glycol hexyl ether acetate, dipropylene glycol heptyl ether acetate, dipropylene glycol octyl ether acetate, and dipropylene glycol phenyl ether acetate.

4. The composition of claim 1 , wherein the at least one glycol ether is diethylene glycol hexyl ether.

5. The composition of claim 1 , wherein the composition comprises the at least one glycol ether in an amount from about 3 wt % to about 15 wt % based on the total weight of the composition.

6. The composition of claim 1 , further comprising a salt containing alkyl sulfate (—SO 4 ) anion.

7. The composition of claim 6 , wherein the salt comprises sodium lauryl sulfate.

Assignees

• Rhodia Operations
• Rhodia Operations Inc

Inventors

• LIN Genyao
• Zhang Shaopeng
• Ndong Rose
• Zhou Jian
• Qu Qi

Classifications

• C08F220/56

  Acrylamide; Methacrylamide · CPC title

• C08F220/1812

  C12-(meth)acrylate, e.g. lauryl (meth)acrylate · CPC title

• C08F220/1808

  C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate · CPC title

• B29B9/06

  in the form of filamentary material, e.g. combined with extrusion · CPC title

• C08F2/26

  anionic · CPC title