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METHODS AND COMPOSITIONS FOR CLEANING POLYMERIZED RESIDUE

  • US 20190316064A1
  • Filed: 04/12/2019
  • Published: 10/17/2019
  • Est. Priority Date: 04/13/2018
  • Status: Active Application
First Claim
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1. A method of cleaning residue from surfaces of paint production equipment, the method comprising:

  • diluting a concentrate composition with water to produce a cleaning composition, the concentrate composition comprising;

    a) at least 30 wt-% organic solvent selected from the group consisting of aromatic alcohol, glycol ether, and mixtures thereof;

    b) at least 8 wt-% alkanolamine;

    c) alkalinity source;

    d) surfactant;

    e) no more than 50 wt-% water, wherein the cleaning composition has a pH of 10 or higher at the time of dilution;

    heating the cleaning composition to a temperature of at least 55°

    C.; and

    applying the cleaning composition to the surfaces of the paint production equipment.

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