INTERNATIONAL PATENT: COVESTRO DEUTSCHLAND AG FILES APPLICATION FOR "PROCESS FOR ISOCYANATE MODIFICATION USING A SPIROCYCLIC AMMONIUM SALT AS CATALYST"

GENEVA, Dec. 22 -- COVESTRO DEUTSCHLAND AG (Kaiser-Wilhelm-Allee 6051373 Leverkusen) filed a patent application (PCT/EP2025/066493) for "PROCESS FOR ISOCYANATE MODIFICATION USING A SPIROCYCLIC AMMONIUM SALT AS CATALYST" on Jun 13, 2025. With publication no. WO/2025/257363, the details related to the patent application was published on Dec 18, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): RICHTER, Frank (Heymannstr. 4051373 Leverkusen), KOSTROMINE, Serguei (Allmende 853913 Swisttal-Buschhoven)

Abstract: The invention relates to a process for producing a modified isocyanate, comprising the ...