Sinopec has been granted an invention patent: “A catalyst component for propylene polymerization, as well as its preparation method, catalyst, and applications””

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According to data from the Tianyancha app, Sinopec (600028) has newly obtained an invention patent grant. The title of the patent is “A catalyst component for propylene polymerization, as well as its preparation method, catalyst, and applications”; the patent application number is CN202210823337.7, and the grant date is May 1, 2026. Patent abstract: This invention belongs to the field of catalyst technology. It discloses a catalyst component for propylene polymerization, as well as its preparation method, the catalyst itself, and its applications. This catalyst component comprises magnesium, titanium, halogens, and an electron donor; said electron donor contains compound X and compound Y ； The general formula of compound X is Ra?O?Rb, where Ra and Rb are the same or different, and are selected from substituted or unsubstituted straight-chain alkyl groups, branched alkyl groups, cycloalkyl groups, aryl groups, alkoaryl groups, arylalkyl groups, and alkene groups having 1–20 carbon atoms ； Ra and Rb can optionally be bonded to form a ring or remain uncyclic ； Compound Y is a diol ester compound. The catalyst of the present invention exhibits good fluidity, favorable particle morphology, and a uniform particle size distribution. When used in propylene polymerization, it shows high activity and good sensitivity to hydrogen regulation, and the resulting polymer does not contain phthalate compounds. Since the beginning of this year, Sinopec has obtained 1,828 new patent approvals, a 70.52% increase compared to the same period last year. Based on the financial data from the company’s 2025 annual report, the company invested 15.863 billion yuan in research and development in 2025, a 4.26% increase compared to the previous year.