Rain Carbon Germany Gmbh

Jun Liu

Manuel Nau

Edgar Fuhrmann

Björn Dreisewerd

Marian Rauser

Matthias Heitmann

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.

Method for producing hydrocarbon resins and hydrogenation products thereof

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 C-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 C-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.

Hydrocarbon resin and process for production thereof

A low molar mass polymeric hydrocarbon tackifier having a number average molar mass Mn of from 200 to 1,500 g/mol provides increased green tack stability over an extended period of time in rubber compounds.

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Duesseldorf, Germany

Jun Liu