Wood Plastic Composite Composition Comprising a Wax, Method for Producing a Wood Plastic Composite Therefrom and the Use of Waxes as Lubricants for the Production of Wood Plastic Composites

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This patent describes a wood plastic composite (WPC) composition that incorporates a specially-defined wax as a lubricant, characterized by specific viscosity, congealing point, and molecular structure. The composition improves the processing and mechanical properties of WPCs by optimizing the external and internal lubrication during production. The wax can be natural or synthetic, and may especially include Fischer-Tropsch waxes with a high content of linear and oxidized hydrocarbons.

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

• Construction materials such as boards, decking, and panels for outdoor and indoor use
• Automotive parts that require wood-plastic composites with enhanced processing characteristics
• Furniture manufacturing using WPCs for lightweight, durable components
• Flooring and wall coverings with superior surface quality and strength
• Any large-scale production process of WPCs where faster and improved processing is desired
• Eco-friendly alternatives to tropical hardwood in building materials

BenefitsContent extracted from patent full text and abstract with AI.

• Enhanced processability of wood plastic composites, allowing for higher production speeds and fewer defects
• Improved mechanical properties, such as strength and durability of final products
• Superior surface finish—better appearance and less surface defects like shark skin or roughness
• Energy savings due to reduced processing torque and improved lubrication
• Flexibility in raw materials, allowing the use of different wax types and wood sources
• Potentially lower production costs due to more efficient manufacturing
• Support for sustainable materials by enabling more effective wood composite production

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Inventors & Applicants

Patent Abstract

The invention relates to wood plastic composite compositions comprising a wax, wherein the composition has superior properties in the processing thereof. The wax is characterized by its dynamic viscosity at 120° C, congealing point, content of molecules in which the carbon chain is linear and content of oxidized hydrocarbons.