| abstract |
The invention relates to a method for synthesising polymers through devulcanisation from waste containing elastomers, said method comprising: - a) contacting said waste containing elastomers with a solvent in the presence of a devulcanisation agent, - b) heating the mixture produced in step a), at a temperature of between 20°C and 250°C for a period of between 15 minutes and 24 hours in the presence of a devulcanisation agent, the concentration of devulcanisation agent being such that the ratio between said concentration of devulcanisation agent, expressed as parts per hundred of elastomer (phr) and a volume of solvent, expressed in ml, is: - greater than 0.3 phr/ml of solvent or less than 0.2 phr/ml of solvent when the method is carried out in air, - greater than 0.06 phr/ml of solvent when the method is carried out in an inert atmosphere. |