05100660 is referenced by 92 patents and cites 6 patents.

This invention relates to aqueous acidic solutions which are thickened by cationic polymer, the polymer being added to the solution in the form of particles below 10 .mu.m in size. The useful cationic polymers are formed from a water soluble cationic ethylenically unsaturated monomer or blend of monomers comprising dialkylaminoalkylacrylics that includes a polyethylenically unsaturated cross-linking agent. A peak viscosity is achieved in the aqueous acidic solution at a particular cross-linker concentration.

The concentration of cross-linking agent chosen is carefully controlled so that the viscosifying effect can be optimised whilst minimising the amount of polymer that has to be added. The amount of polymer in the aqueous acidic solution is typically in the range of from, 0.01% to 5% dry weight polymer.

Title
Thickened acidic aqueous compositions using cross-linked dialkylaminoacrylic microparticles
Application Number
7/512778
Publication Number
5100660
Application Date
April 20, 1990
Publication Date
March 31, 1992
Inventor
David Farrar
West Yorkshire
GB
Malcolm Hawe
West Yorkshire
GB
Agent
Ostrolenk Faber Gerb & Soffen
Assignee
Allied Colloids
GB
IPC
A61L 2/18
C08L 33/10
C08L 33/08
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