BR9804297A - Processo para remoção de material volátil. - Google Patents

Processo para remoção de material volátil.

Info

Publication number
BR9804297A
BR9804297A BR9804297-1A BR9804297A BR9804297A BR 9804297 A BR9804297 A BR 9804297A BR 9804297 A BR9804297 A BR 9804297A BR 9804297 A BR9804297 A BR 9804297A
Authority
BR
Brazil
Prior art keywords
zone
polymer
melting
compression agent
agent
Prior art date
Application number
BR9804297-1A
Other languages
English (en)
Inventor
David Khanin
Leonard Sebastian Scarola
Original Assignee
Union Carbide Chem Plastic
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 Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of BR9804297A publication Critical patent/BR9804297A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • B29B7/847—Removing of gaseous components before or after mixing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

"PROCESSO PARA REMOçãO DE MATERIAL VOLáTIL" . Processo para remoção de material gasoso de um polímero termoplástico, contendo impurezas gasosas em um aparelho tendo uma zona de fusão, uma zona de misturação e uma zona de pressão reduzida, compreendendo: a) (i) adicionar um agente de compressão granular diretamente ou através de um lote mestre ao polímero antes da introdução do polímero na zona de fusão, o referido agente de compressão sendo adicionado numa quantidade de cerca de 1 a cerca 4% em peso com base no peso do polímero ou (ii) adicionar um agente de compressão gasoso à zona de misturação; b) fundir o polímero na zona de fusão; c) misturar o polímeros fundido e o agente de compressão na zona de misturação sob pressão suficiente para manter o agente de compressão na mistura; d) a uma temperatura suficiente para decompor ou expandir, (i) decompor o agente de compressão granular na zona de misturação e/ou na zona de pressão reduzida ou ii) expandir o agente de compressão gasoso na zona de pressão reduzida em que o agente de compressão em seu estado decomposto ou expandido desenvolve células de espuma no polímero em fusão; e) na zona de pressão reduzida, reduzir a pressão na superfície do polímero em fusão em uma proporção suficiente para remover essencialmente todas as impurezas gasosas; f) opcionalmente, repetir as etapas (c) (d) e (e) pelo menos uma vez; e g) recuperar o polímero em um, estado essencialmente sem formação de espuma.
BR9804297-1A 1997-12-05 1998-10-27 Processo para remoção de material volátil. BR9804297A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/985,796 US5932691A (en) 1997-12-05 1997-12-05 Process for devolatilization

Publications (1)

Publication Number Publication Date
BR9804297A true BR9804297A (pt) 2000-03-08

Family

ID=25531802

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9804297-1A BR9804297A (pt) 1997-12-05 1998-10-27 Processo para remoção de material volátil.

Country Status (6)

Country Link
US (1) US5932691A (pt)
EP (1) EP0920966A3 (pt)
JP (1) JP3261401B2 (pt)
AU (1) AU733533B2 (pt)
BR (1) BR9804297A (pt)
CA (1) CA2255173A1 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4108819B2 (ja) * 1998-03-27 2008-06-25 新日鐵化学株式会社 重合液組成物の脱揮処理方法
US6280667B1 (en) 1999-04-19 2001-08-28 Andersen Corporation Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component
JP4661205B2 (ja) * 2004-12-16 2011-03-30 旭硝子株式会社 含フッ素共重合体組成物及びそれからなる成形品
DE102007029010A1 (de) * 2006-08-26 2008-02-28 Bayer Materialscience Ag Verfahren zum Compoundieren von Polymeren
DE102011080223A1 (de) * 2011-08-01 2013-02-07 Henkel Ag & Co. Kgaa Thermisch härtbare Zubereitungen
US10695953B2 (en) 2012-05-31 2020-06-30 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous carpet filament
US9636860B2 (en) 2012-05-31 2017-05-02 Mohawk Industries, Inc. Method of manufacturing bulked continuous filament
US10532495B2 (en) 2012-05-31 2020-01-14 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from recycled PET
US9630353B2 (en) 2012-05-31 2017-04-25 Mohawk Industries, Inc. Method of manufacturing bulked continuous filament
US9636845B2 (en) 2012-05-31 2017-05-02 Mohawk Industries, Inc. Method of manufacturing pet nurdles
US10487422B2 (en) 2012-05-31 2019-11-26 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from colored recycled pet
US11045979B2 (en) 2012-05-31 2021-06-29 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from recycled PET
US10538016B2 (en) 2012-05-31 2020-01-21 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous carpet filament
US8597553B1 (en) 2012-05-31 2013-12-03 Mohawk Industries, Inc. Systems and methods for manufacturing bulked continuous filament
US9630354B2 (en) * 2012-05-31 2017-04-25 Mohawk Industries, Inc. Method of manufacturing bulked continuous filament
DE102014221060A1 (de) 2014-10-16 2016-04-21 Henkel Ag & Co. Kgaa Thermisch expandierbare Zusammensetzung
US10751915B2 (en) 2016-11-10 2020-08-25 Aladdin Manufacturing Corporation Polyethylene terephthalate coloring systems and methods
EA201991807A1 (ru) 2017-01-30 2019-12-30 Аладдин Мэньюфэкчеринг Корпорейшн Способы для изготовления объемной непрерывной нити из окрашенного вторичного полиэтилентерефталата
US11279071B2 (en) 2017-03-03 2022-03-22 Aladdin Manufacturing Corporation Method of manufacturing bulked continuous carpet filament
HUE061237T2 (hu) 2017-09-15 2023-05-28 Aladdin Mfg Corp Eljárás ömlesztett folytonos szõnyegszál elõállítására
US11242622B2 (en) 2018-07-20 2022-02-08 Aladdin Manufacturing Corporation Bulked continuous carpet filament manufacturing from polytrimethylene terephthalate
CN109401019B (zh) * 2018-11-07 2021-06-01 江苏索普化工股份有限公司 一种ldpe高发泡专用无氨味发泡剂母粒及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975473A (en) * 1974-09-12 1976-08-17 Union Carbide Corporation Process for production of cellular thermoplastic bodies
US4169679A (en) * 1975-09-04 1979-10-02 Union Carbide Corporation Apparatus for the extrusion of cellular thermoplastic material
US4302409A (en) * 1975-09-04 1981-11-24 Union Carbide Corporation Method for the extrusion of thermoplastic material composites
US5442041A (en) * 1995-01-19 1995-08-15 Arco Chemical Technology, L.P. Removal of volatile substances from thermoplastic resins
DE19503053B4 (de) * 1995-02-01 2005-08-18 Zimmer Ag Verfahren zur direkten Herstellung von Polyester-Verpackungen
US5639801A (en) * 1995-05-18 1997-06-17 Nova Chemicals Inc. Processing of anhydride-containing thermoplastic resins
US5597891A (en) * 1995-08-01 1997-01-28 Eastman Chemical Company Process for producing polyester articles having low acetaldehyde content
US5648032A (en) * 1995-08-01 1997-07-15 Eastman Chemical Company Process for producing polyester articles having low acetaldehyde content

Also Published As

Publication number Publication date
EP0920966A3 (en) 2001-02-07
JP3261401B2 (ja) 2002-03-04
JPH11335465A (ja) 1999-12-07
AU9521498A (en) 1999-06-24
CA2255173A1 (en) 1999-06-05
EP0920966A2 (en) 1999-06-09
US5932691A (en) 1999-08-03
AU733533B2 (en) 2001-05-17

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Legal Events

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

Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1861 DE 05/09/2006.