GENEVA, May 4 -- WANHUA CHEMICAL GROUP CO., LTD (No.17, Tianshan Rd, YEDAYantai, Shandong 264000), 万华化学集团股份有限公司 (中国山东省烟台市经济技术开发区天山路17号) filed a patent application (PCT/CN2023/125880) for "METHOD FOR PREPARING DIPHENYLMETHANE-BASED DIAMINES AND POLYAMINES" on Oct 23, 2023. With publication no. WO/2025/086031, the details related to the patent application was published on May 01, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellect...