GENEVA, Jan. 4 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North StreetDongcheng District, Beijing 100007), 中国石油天然气股份有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/137590) for "DUAL-CENTER NON-METALLOCENE CATALYST AND PREPARATION METHOD THEREFOR, AND 1-BUTENE-BASED ELASTOMER AND PREPARATION METHOD THEREFOR" on Dec 06, 2024. With publication no. WO/2026/000841, the details related to the patent application was published on Jan 02, 2026.
Notably, the patent application was submitted under the International Patent Classification (IPC)...