ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,191, issued on March 31, was assigned to KINGFA SCI. & TECH. Co. LTD. (Guangdong, China).
"Low-odor soft PVC material" was invented by Xiumei Zhu (Guangdong, China), Xianbo Huang (Guangdong, China), Nanbiao Ye (Guangdong, China), Yusen Wang (Guangdong, China), Guojie Yin (Guangdong, China), Mingxing Xie (Guangdong, China) and Xiaoyun Yang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a low-odor soft PVC material. The material comprises the following components in parts by weight: 100 parts of a PVC resin, 60-125 parts of a plasticizer, 2-10 parts of a heat stabilizer, 10-50 parts of a filler, 0-2 parts of an antioxid...