Treating Powdered Paint Waste for Use in Recycling Methods

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

This invention discloses a method to recycle powdered paint waste (particularly from powder coatings) by chemically treating it with a surfactant such as a fatty acid (e.g., stearic acid). This treatment reduces or eliminates the tendency of waste powder paint to stick to surfaces, especially metals, during further heat-based processes. As a result, the treated powder paint waste can be effectively and economically reprocessed and reused as a raw material in various recycling or manufacturing methods, such as extrusion or injection molding, to produce new materials or products.

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

• Recycling powder coating waste from industrial painting processes into raw materials for plastics manufacturing.
• Producing fillers or additives for thermoplastic and thermoset polymers from treated powdered paint waste.
• Manufacture of new composite materials (e.g., plastic parts) using recycled powder paint waste via extrusion or injection molding.
• Generating 3D printing filaments or feedstocks from powder coating waste for use in additive manufacturing (e.g., Fused Deposition Modeling).
• Utilizing recycled powder coat waste as binders or components in building materials or other composite applications.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces costs and environmental burden associated with disposing of powdered paint waste, which is otherwise expensive and problematic to landfill or incinerate.
• Enables easy and efficient reuse of high-value powder paint materials that would otherwise be wasted.
• Prevents equipment damage and process interruptions by suppressing the strong adhesion of powder waste to metal surfaces during recycling.
• Minimizes the need for complicated or energy-intensive steps by allowing the waste to be processed with simple mixing and mild heating.
• Enhances sustainability and circular economy practices in industries using powder coatings and plastics.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for recycling powdered paint waste, wherein the powdered paint waste is treated using a reactant such that the adhesion of the powdered paint waste to surfaces, especially metal surfaces, is reduced or nullified. The treatment of the powdered paint waste according to the invention allows the powdered paint waste to be additionally processed under the influence of heat and to be used as a starting material in different recycling methods or even in other methods.