New method for producing rubber-modified bitumen from vulcanized rubber

Producing rubber modified bitumen from vulcanized rubber, comprises breaking (devulcanizing) a sulfide bridge of vulcanized rubber with at least one dialkyl polysulfide (I), before or during the mixing of bitumen. Producing rubber modified bitumen from vulcanized rubber, comprises breaking (devulcan...

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Bibliographische Detailangaben
Hauptverfasser:	MUECKE, MICHAEL, SAEWE, MARTIN, PAREIGIS, ERWIN, KLEIN, THOMAS, LAREM, DAVID
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Producing rubber modified bitumen from vulcanized rubber, comprises breaking (devulcanizing) a sulfide bridge of vulcanized rubber with at least one dialkyl polysulfide (I), before or during the mixing of bitumen. Producing rubber modified bitumen from vulcanized rubber, comprises breaking (devulcanizing) a sulfide bridge of vulcanized rubber with at least one dialkyl polysulfide of formula (R1-S x-R2) (I), before or during the mixing of bitumen. R1, R2 : optionally branched 1-18C alkyl; and x : 3-12. An independent claim is also included for the rubber-modified bitumen, which is obtained by mixing the vulcanized rubber, in which the sulfide bridges are broken (devulcanized), before or while the bitumen is mixed. Gegenstand der vorliegenden Erfindung ist ein neuartiges Verfahren zur Herstellung von gummimodifiziertem Bitumen aus vulkanisiertem Gummi.