BR9805620A - Processo para reciclagem de poliuretanos - Google Patents

Processo para reciclagem de poliuretanos

Info

Publication number
BR9805620A
BR9805620A BR9805620A BR9805620A BR9805620A BR 9805620 A BR9805620 A BR 9805620A BR 9805620 A BR9805620 A BR 9805620A BR 9805620 A BR9805620 A BR 9805620A BR 9805620 A BR9805620 A BR 9805620A
Authority
BR
Brazil
Prior art keywords
polyurethane
recycling process
polyurethane recycling
hammers
extruders
Prior art date
Application number
BR9805620A
Other languages
English (en)
Inventor
Luiz Carlos Oliveira Da C Lima
Original Assignee
Luiz Carlos Oliveira Da Cunha
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 Luiz Carlos Oliveira Da Cunha filed Critical Luiz Carlos Oliveira Da Cunha
Priority to BR9805620A priority Critical patent/BR9805620A/pt
Priority to PCT/BR1999/000105 priority patent/WO2000039206A1/en
Priority to AU17630/00A priority patent/AU1763000A/en
Publication of BR9805620A publication Critical patent/BR9805620A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/82—Post-polymerisation treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Patente de Invenção para "PROCESSO PARA RECICLAGEM DE POLIURETANOS", baseado na capacidade que tem esse produto de absorver solventes e tornar fraca sua resistência ao cisalhamento. Como equipamentos de cisalhamento adequados a esse processo devem ser considerados, particularmente os moinhos de bolas, barras esferas, disco, martelo e os equipamentos que fazem fluir o material sob pressão por fendas, orifícios, telas, placas microporosas sinterizadas, como injetoras, bombas e extrusoras que operam com o poliuretanos intumescido com solvente reduzindo a partículas entre 0,1 mm e 1 mícron. Pelo processo da presente invenção são obtidos o pó de poliuretano micro-cominuido em condições amenas que proporcione uma nova integração na formulação base, com um mínimo de perda de suas propriedades.
BR9805620A 1998-12-23 1998-12-23 Processo para reciclagem de poliuretanos BR9805620A (pt)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR9805620A BR9805620A (pt) 1998-12-23 1998-12-23 Processo para reciclagem de poliuretanos
PCT/BR1999/000105 WO2000039206A1 (en) 1998-12-23 1999-12-21 Process for polyurethane recycling
AU17630/00A AU1763000A (en) 1998-12-23 1999-12-21 Process for polyurethane recycling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9805620A BR9805620A (pt) 1998-12-23 1998-12-23 Processo para reciclagem de poliuretanos

Publications (1)

Publication Number Publication Date
BR9805620A true BR9805620A (pt) 2000-09-26

Family

ID=4071239

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9805620A BR9805620A (pt) 1998-12-23 1998-12-23 Processo para reciclagem de poliuretanos

Country Status (3)

Country Link
AU (1) AU1763000A (pt)
BR (1) BR9805620A (pt)
WO (1) WO2000039206A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6333373B1 (en) * 1999-02-10 2001-12-25 R&D Technology, Inc. Ground elastomer and method
US6426136B1 (en) 1998-02-10 2002-07-30 R & D Technology, Inc. Method of reducing material size
US6743836B2 (en) 2000-01-26 2004-06-01 R&D Technology, Inc. Method for predispersing compounding ingredients
US6815510B2 (en) 2001-11-19 2004-11-09 Michael W. Rouse Elastomer reclaiming composition and method
US8047380B2 (en) 2008-02-15 2011-11-01 Screenex Manufacturing (Pty) Ltd. Screen panels
EP3287475A1 (de) 2016-08-25 2018-02-28 Covestro Deutschland AG Verfahren zur herstellung von abbaubaren polyurethanpolymeren und aufarbeitungsverfahren hierfür
CN108178842A (zh) * 2017-12-20 2018-06-19 广州冠志新材料科技有限公司 一种利用废弃水性聚氨酯及分散体回收制备水性聚氨酯树脂的方法
EP4153650A1 (en) * 2020-05-19 2023-03-29 Huntsman International LLC A process for recycling a polyurethane material
CN113773549A (zh) * 2021-09-23 2021-12-10 青岛科技大学 一种聚氨酯泡沫废料活化微粉及其制备方法、聚氨酯软泡及其制备方法和应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951617C2 (de) * 1979-12-21 1985-08-14 Wilhelm Prof. Dr.-Ing. 5100 Aachen Schütz Verfahren und Anlage zur Aufbereitung von Polyurethan
US5648431A (en) * 1990-09-27 1997-07-15 Michael Demuth Process for the utilization of plastics

Also Published As

Publication number Publication date
AU1763000A (en) 2000-07-31
WO2000039206A1 (en) 2000-07-06

Similar Documents

Publication Publication Date Title
BR9805620A (pt) Processo para reciclagem de poliuretanos
BR9913060A (pt) Material para eletrodo positivo e processo para a fabricação do mesmo
DE69718514T2 (de) Vorrichtung zum gasdynamischen beschichten
ES2044591T3 (es) Procedimiento para la fabricacion de material de construccion, estructural y de embalaje asi como instalacion para la realizacion del procedimiento.
ES2039349T3 (es) Procedimiento de disolucion rapida de geles de polimeros en agua.
BR8703661A (pt) Material composto com ao menos uma camada deslizante aplicada por pulverizacao a catodo("sputtering"),processo para sua producao e emprego do mesmo
ES2121230T3 (es) Una trituradora mecanica para material biologico.
DE60226721D1 (de) Verbundverfahren durch verwendung einer doppelbandpresse, und vorrichtung zur herstellung von membranelektrodenanordnungen
DE60206529T2 (de) Dichtung für elektrochemische zelle
BR0306737A (pt) Uso de um agente deionizante lìquido, processo para deionização de um meio de resfriamento de uma célula de combustìvel, e, aparelho de célula de combustìvel
KR940006737A (ko) 합성 물질 분쇄용 로울러 장치
WO1991014552A1 (de) Verfahren zum aufbereiten gummihaltigen abfalls für die weiterverarbeitung
BR0213082A (pt) Vedação do eixo radial e processo para a sua fabricação
DE19821470A1 (de) Verfahren zur Aufbereitung von Altkältegeräten
BRPI0406668A (pt) Recipiente de segurança, processo para a produção do mesmo, e, uso de um meio que contém pelo menos um polìmero
DE4133915C2 (de) Verfahren zum Abtrennen von Treibgasen aus Schaumstoffen
ES2146055T3 (es) Sistema clasificador de alto rendimiento para un molino triturador.
ES2123266T3 (es) Procedimiento y dispositivo para producir espumas mediante dioxido de carbono disuelto bajo presion.
BR9801117A (pt) Método e dispositivo para produzir granulado
ES2183522T3 (es) Cristalizacion de lactitol, producto de lactitol cristalino y utilizacion del mismo.
DE2856619C2 (de) Verbesserter unterer Druckplattenverbund zum Einbau in hydraulisch betätigbare Gesteinszerkleinerer
BR9902670A (pt) Processo para a produção de anéis de chapa metálica
AR047404A1 (es) Proceso para fabricar un material compuesto, material compuesto y aplicacion del mismo
O'Neill et al. The inverse thixotropic behaviour of synovial fluid
Kirk et al. The effects of dehydration on the surface morphology of articular cartilage

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]