Microemulsion-Based Cleaning Agent

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes an aqueous cleaning agent based on a microemulsion, which consists of liquid carboxylic acid esters (ester oils), specific water-soluble salts, anionic and nonionic surfactants, and a special 'booster' polymer additive. The formulation is designed to provide efficient cleaning, especially for removing stubborn, paint-like, oily, and polymer-based contaminants from various surfaces. Notably, it avoids the need for large amounts of hazardous surfactants or volatile organic solvents, making it safer and more environmentally friendly than traditional cleaners.

Use CasesContent extracted from patent full text and abstract with AI.

• Cleaning paint brushes, rollers, and spray equipment after use with water-based or solvent-based paints, including removal of dried or stubborn paint residues.
• Removing dried paint, adhesives, sealants, silicones, and polymer foams from surfaces such as metal, plastic, or glass—useful in both household and industrial maintenance.
• Cleaning cooking appliances (e.g. ovens, grills, chimney glass) contaminated with pyrolysis products, oils, and baked-on stains.
• Degreasing and cleaning industrial machinery or surfaces from oily, resinous, or bituminous soils.
• General-purpose neutral cleaning (pH-balanced) for sensitive surfaces where aggressive alkaline or solvent-based products may cause damage (e.g. aluminum, coated metals).
• Use in the printing industry to remove inks and residues from print machines and components, including both water-based and solvent-based inks.

BenefitsContent extracted from patent full text and abstract with AI.

• Effective at removing both fresh and dried polymer, oil, or paint-based contaminants, which are typically difficult for water-only or conventional solvent cleaners.
• Formulated with low amounts of surfactants and essentially no volatile organic compounds (VOCs), reducing risks to health, safety, and the environment.
• Thermodynamically stable over a broad temperature range, ensuring reliable storage, transport, and application even under fluctuating ambient conditions.
• Leaves little residue and can be easily rinsed away with water; may even leave treated surfaces and skin with a pleasant, non-greasy, neutral feel.
• Suitable for sensitive materials and surfaces that may be damaged by strong alkalis or traditional organic solvents, expanding its use to a wider range of applications.
• Reduced odor and skin irritation compared to conventional cleaners, enhancing user comfort and workplace acceptability.
• Can be diluted with water for lighter cleaning tasks, improving versatility and cost-effectiveness.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The present invention relates to an aqueous microemulsion, comprising a) one or more liquid carboxylic acid esters, b) one or more water-soluble salts having one or more cations, preferably selected from the group comprising sodium, potassium, calcium, magnesium, and ammonium, c) one or more salts of sulphosuccinic acid ester, d) one or more nonionic surfactants selected from alkoxylated sorbitan ester and alkoxylated vegetable oil, and e) one or more boosters.