Method for producing hydrocarbon resins and hydrogenation products thereof

US12077624B2 · kind B2 · utility

Assignee

• Rain Carbon Germany GMBH · DE

Inventors

• Jun Liu · Dressendorf, DE
• Manuel Nau · Haltern am See, DE

Key dates

• Filing date: Feb 14, 2019
• Grant date: Sep 3, 2024
• Expiry date: Nov 8, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2500/22
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In a method for the manufacture of a hydrocarbon resin made of at least one cyclic diolefin component and at least one ethylenically unsaturated aromatic component having 8 to 13 carbon atoms, the monomer mixture is heated to a polymerisation temperature of at least 180° C. at a heating speed of 0.5 to 10° C./second to obtain a hydrocarbon resin with a reduced amount of by-products, wherein the monomer mixture is essentially liquid in a single phase during the heating to at least 180° C. and during polymerisation, and the subsequently hydrogenated hydrocarbon resin has good compatibility with other components of hot-melt adhesives.