BRPI0704070A2 - process for recycling vulcanized elastomers, compositions of such elastomers and molded articles - Google Patents

process for recycling vulcanized elastomers, compositions of such elastomers and molded articles

Info

Publication number
BRPI0704070A2
BRPI0704070A2 BRPI0704070-9A BRPI0704070A BRPI0704070A2 BR PI0704070 A2 BRPI0704070 A2 BR PI0704070A2 BR PI0704070 A BRPI0704070 A BR PI0704070A BR PI0704070 A2 BRPI0704070 A2 BR PI0704070A2
Authority
BR
Brazil
Prior art keywords
elastomers
compositions
recycling
molded articles
vulcanization
Prior art date
Application number
BRPI0704070-9A
Other languages
Portuguese (pt)
Inventor
Elen Beatriz Acordi Vasques Pacheco
Jose Ribeiro De Albuquerque Neto
Cristina Russi Guimaraes Furtado
Leila Lea Yuan Visconte
Original Assignee
Univ Rio De Janeiro
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Rio De Janeiro filed Critical Univ Rio De Janeiro
Priority to BRPI0704070A priority Critical patent/BRPI0704070B1/en
Publication of BRPI0704070A2 publication Critical patent/BRPI0704070A2/en
Publication of BRPI0704070B1 publication Critical patent/BRPI0704070B1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Tires In General (AREA)

Abstract

PROCESSO PARA A RECICLAGEM DE ELASTÈMEROS VULCANIZADOS, COMPOSIçõES DESSES ELASTÈMEROS E ARTIGOS MOLDADOS. é descrito um processo para a reciclagem de elastómeros vulcanizados, como borracha natural e/ou elastómeros diênicos sintéticos, que compreende colocar o elastómero em grânulo ou outra forma em equipamento convencional de processamento de borracha para cisalhamento e plastificação, durante 50-70 minutos, adicionado de 1-10 phr de agente de regeneração sulfenamida, e após o processamento, recuperar um produto elastomérico regenerado adequado para re-vulcanização, e onde os valores de torque mínimo no processamento garantam a processabilidade das composições. São também descritas as composições contendo elastómero e agente de regeneração e os produtos moldados obtidos por re-vulcanização e cura das mesmas.PROCESS FOR RECYCLING VOLCANIZED ELASTEMERS, COMPOSITIONS OF THESE ELASTMERS AND MOLDED ARTICLES. A process for recycling vulcanized elastomers such as natural rubber and / or synthetic diene elastomers is described which comprises placing the elastomer in granules or other form in conventional shear and plasticizing rubber processing equipment for 50-70 minutes, added 1-10 phr sulfenamide regenerating agent, and after processing, recover a regenerated elastomeric product suitable for re-vulcanization, and where the minimum processing torque values ensure the processability of the compositions. Also described are compositions containing elastomer and regenerating agent and molded products obtained by re-vulcanization and curing thereof.

BRPI0704070A 2007-11-14 2007-11-14 process for recycling vulcanized elastomers, compositions of such elastomers and molded articles BRPI0704070B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0704070A BRPI0704070B1 (en) 2007-11-14 2007-11-14 process for recycling vulcanized elastomers, compositions of such elastomers and molded articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0704070A BRPI0704070B1 (en) 2007-11-14 2007-11-14 process for recycling vulcanized elastomers, compositions of such elastomers and molded articles

Publications (2)

Publication Number Publication Date
BRPI0704070A2 true BRPI0704070A2 (en) 2009-07-28
BRPI0704070B1 BRPI0704070B1 (en) 2018-11-06

Family

ID=40896225

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0704070A BRPI0704070B1 (en) 2007-11-14 2007-11-14 process for recycling vulcanized elastomers, compositions of such elastomers and molded articles

Country Status (1)

Country Link
BR (1) BRPI0704070B1 (en)

Also Published As

Publication number Publication date
BRPI0704070B1 (en) 2018-11-06

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Legal Events

Date Code Title Description
B03A Publication of an application: publication of a patent application or of a certificate of addition of invention
B07A Technical examination (opinion): publication of technical examination (opinion)
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 06/11/2018, OBSERVADAS AS CONDICOES LEGAIS.