GENEVA, Feb. 2 -- CHINA PETROLEUM & CHEMICAL CORPORATION (No.22 Chaoyangmen North Street,Chaoyang District, Beijing 100728), 中国石油化工股份有限公司 (中国北京市朝阳区朝阳门北大街22号), ZHEJIANG UNIVERSITY (866 Yuhangtang Road, Xihu District,Hangzhou, Zhejiang 310058), 浙江大学 (中国浙江省杭州市西湖区余杭塘路866号) filed a patent application (PCT/CN2025/109854) for "OLEFIN POLYMER AND PREPARATION METHOD THEREFOR" on Jul 22, 2025. With publication no. WO/2026/02143...