According to the Suqian Liansheng announcement, the company recently obtained an invention patent certificate issued by the State Intellectual Property Office. The name of the invention is “Preparation Method and Application of a Flame Retardant MCA”. The patent number is ZL202310632257.8. The patent application date is May 31, 2023. The authorization announcement date is December 23, 2025, and the patent period is 20 years. The acquisition of this patent has had no significant impact on recent production and operation, but it is conducive to improving the intellectual property protection system and enhancing core competitiveness.

According to the Suqian Liansheng announcement, the company recently obtained an invention patent certificate issued by the State Intellectual Property Office. The name of the invention is “Preparation Method and Application of a Flame Retardant MCA”. The patent number is ZL202310632257.8. The patent application date is May 31, 2023. The authorization announcement date is December 23, 2025, and the patent period is 20 years. The acquisition of this patent has had no significant impact on recent production and operation, but it is conducive to improving the intellectual property protection system and enhancing core competitiveness.