Hydrocarbon resin and process for production thereof

US11976150B2 · kind B2 · utility

Assignee

• Rain Carbon Germany GMBH · DE

Inventors

• Manuel Nau · Haltern am See, DE
• Björn Dreisewerd · Dortmund, DE
• Jun Liu · Dressendorf, DE
• Edgar Fuhrmann · Castrop-Rauxel, DE
• Matthias Heitmann · Dressendorf, DE

Key dates

• Filing date: Feb 12, 2021
• Grant date: May 7, 2024
• Expiry date: Feb 12, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J145/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Presented and described is a hydrocarbon resin obtainable by thermal polymerization of a cyclic diolefin component including a cyclic diolefin compound with an aromatic component including indene and/or C1-4-alkylindene, with the hydrocarbon resin having a polydispersity index (PDI) of 1 to less than 2.3. Further described is a production process for the hydrocarbon resin, wherein a monomer mixture which includes an aromatic component including indene and/or C1-4-alkylindene and a cyclic diolefin component including a cyclic diolefin compound is polymerized by heating to a polymerization temperature of at least 180° C. to give a product stream including hydrocarbon resin, and oligomers which include units originating from the cyclic diolefin compound and/or units originating from the aromatic component are separated from the product stream and returned to the monomer mixture. Lastly described are a hydrogenated hydrocarbon resin, a process for production thereof, and the use of the hydrocarbon resin and of the hydrogenated hydrocarbon resin.