Method for producing resins from rubber chips

A method of producing hydrocarbon-containing resins starting from a charge comprising rubber chips, the method comprising:

• (a) pyrolyzing the rubber chips at a temperature between 300 and 900° C. with an increasing temperature ramp to produce a gaseous effluent, a pyrolysis oil and a solid effluent, the pyrolysis oil comprising at least 1.5 wt % C4-C12 olefinic monomers;
• (b) separating the pyrolysis oil into at least one raffinate, an intermediate fraction and an extract, the intermediate fraction comprising 10 to 90 wt % C4-C12 olefinic monomers, 20 to 80 wt % inert compounds, and at most 10 wt % heteroatoms;
• (c) polymerizing the intermediate fraction to produce a first effluent stream;
• (d) stopping the polymerization by contacting the first effluent stream with a stopper compound to produce a polymerized effluent stream;
• (e) separating the polymerized effluent stream into an effluent rich in inert compounds and an effluent rich in resins;
• and
• (f) drying the effluent rich in resins to produce a stream comprising the hydrocarbon-containing resins,
• wherein no inert compounds are externally supplied during the method of production of hydrocarbon-containing resins.