NON-CHEMICAL, MECHANICAL PROCEDURE FOR THE DEVULCANIZATION OF SCRAP RUBBER AND/OR ELASTOMERS AND APPARATUS THEREFOR

摘要

A non-chemical, mechanical procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

主权项

1. Procedure for devulcanization of rubber and/or elastomers the molecular chains of which are destructible by mechanical and thermal stress, wherein the mechanical and thermal stress is generated in a planetary roller extruder whereat the planetary roller extruder comprising a housing, planetary spindles and a central spindle; and the central spindle is intermeshing with the planetary spindles and the planetary spindles with an internal toothing of the housing or the internal toothing of an intended liner in the housing so that a revolution of the central spindle causes a rotation of the planetary spindles around the central spindle in the housing, at which the planetary spindles of one section slide with the facing surface at a stop ring of this section, whereat in the planetary roller extruder is at least one dispersion ring intended which reduces the flow cross-section for the rubber and/or the elastomers more than a stop ring creating said mechanical and/or thermal stress.