ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,861, issued on April 21, was assigned to Dongguan Etan Management Consulting Co. Ltd (Dongguan, China).

"Preparation process for high-strength PVC composite board" was invented by Hongqi Chen (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to the technical field of polyvinyl chloride, and discloses a preparation process for a high-strength PVC composite board, which comprises the following steps: blending and modifying 20-40 parts by weight of sodium phytate modified wood powder by weight and 5-15 parts by weight of cationic modified chlorinated polyethylene to obtain a mixture, blending the mixture with 100 pa...