Recycling waste from polymeric materials - by subjecting materials to mechanical shearing and pressure at original crosslinking temp

Recycling waste from crosslinked polymeric materials, e.g. elastomers or duromers, comprises subjecting the materials at a temp. in the region of the original crosslinking temps. to mechanical shearing and pressure. Appts. for carrying out the process is also claimed. The appts. comprises a kneader...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LIMPER, ANDREAS.., 57258 FREUDENBERG, DE, POHL, JUERGEN., 57258 FREUDENBERG, DE, FISCHER, REINHARD., 52074 AACHEN, DE, MENGES, GEORG, DR.., 52072 AACHEN, DE, LACKNER, VOLKER., 52070 AACHEN, DE
Format:	Patent
Sprache:	eng ; 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 GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Recycling waste from crosslinked polymeric materials, e.g. elastomers or duromers, comprises subjecting the materials at a temp. in the region of the original crosslinking temps. to mechanical shearing and pressure. Appts. for carrying out the process is also claimed. The appts. comprises a kneader having breaking elements for shearing the waste to treatable material, which is then heated to 600 deg.C and then cooled to less than 100 deg.C. ADVANTAGE - The waste can be decomposed to low mol. wt. prods. and then converted into gases.