FI924965L - Foerfarande foer foerbaettring av termooksidativ stabilitet av etenpolymerer - Google Patents

Foerfarande foer foerbaettring av termooksidativ stabilitet av etenpolymerer Download PDF

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Publication number
FI924965L
FI924965L FI924965A FI924965A FI924965L FI 924965 L FI924965 L FI 924965L FI 924965 A FI924965 A FI 924965A FI 924965 A FI924965 A FI 924965A FI 924965 L FI924965 L FI 924965L
Authority
FI
Finland
Prior art keywords
termooxidativ
stabilitet
etenpolymerer
foerfarande foer
foer foerbaettring
Prior art date
Application number
FI924965A
Other languages
English (en)
Finnish (fi)
Other versions
FI924965A0 (fi
FI924965A7 (fi
Inventor
Morgan M Hughes
Michael E Rowland
Chad A Strait
Original Assignee
Dow Chemical Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24664075&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI924965(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of FI924965A0 publication Critical patent/FI924965A0/fi
Publication of FI924965A7 publication Critical patent/FI924965A7/fi
Publication of FI924965L publication Critical patent/FI924965L/fi

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/001Removal of residual monomers by physical means
    • C08F6/005Removal of residual monomers by physical means from solid polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/76Venting, drying means; Degassing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/76Venting, drying means; Degassing means
    • B29C48/762Vapour stripping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
FI924965A 1991-03-04 1992-03-04 Foerfarande foer foerbaettring av termooksidativ stabilitet av etenpolymerer FI924965L (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66399591A 1991-03-04 1991-03-04
PCT/US1992/001720 WO1992015621A1 (en) 1991-03-04 1992-03-04 Method of improving the oxidative thermal stability of ethylene polymers

Publications (3)

Publication Number Publication Date
FI924965A0 FI924965A0 (fi) 1992-11-03
FI924965A7 FI924965A7 (fi) 1992-11-03
FI924965L true FI924965L (fi) 1992-11-03

Family

ID=24664075

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924965A FI924965L (fi) 1991-03-04 1992-03-04 Foerfarande foer foerbaettring av termooksidativ stabilitet av etenpolymerer

Country Status (9)

Country Link
US (1) US5756659A (cs)
EP (1) EP0527225B1 (cs)
JP (1) JP3174915B2 (cs)
CA (1) CA2081105C (cs)
DE (1) DE69224242T2 (cs)
ES (1) ES2111635T3 (cs)
FI (1) FI924965L (cs)
TW (1) TW246679B (cs)
WO (1) WO1992015621A1 (cs)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0169505B1 (ko) * 1992-09-11 1999-01-15 오오쓰끼 아끼히꼬 약제 포장용 폴리올레핀 포장재, 그의 제조방법 및 약제 포장용 용기
US5442041A (en) * 1995-01-19 1995-08-15 Arco Chemical Technology, L.P. Removal of volatile substances from thermoplastic resins
US5521275A (en) * 1995-09-05 1996-05-28 General Electric Company Method for improving catalyst efficiency during polycarbonate redistribution
US5861474A (en) * 1996-07-23 1999-01-19 The Dow Chemical Company Polymer devolatilization
US6576131B1 (en) * 1997-12-16 2003-06-10 Flint Ink Corporation Process and apparatus for changing the wetting agent of pigments
US6160060A (en) * 1998-08-04 2000-12-12 Eastman Chemical Company Process for the synthesis of high molecular weight predominantly amorphous polymers with improved color and adhesive properties
US6022946A (en) * 1998-12-23 2000-02-08 Union Carbide Chemicals & Plastics Technology Corporation Process for deactivation of polyolefin compositions utilizing carbon dioxide as a deactivation agent
DE60015672T2 (de) * 1999-08-27 2005-12-01 Rohm And Haas Co. Verfahren zum Abstrippen von Polymerdispersionen oder Polymerlösungen
US6273599B1 (en) 1999-09-17 2001-08-14 Flint Ink Corporation Process for preparing pigment flush
KR20040034251A (ko) * 2002-10-21 2004-04-28 삼성에스디아이 주식회사 전계방출소자
US7785512B1 (en) 2003-07-31 2010-08-31 Advanced Cardiovascular Systems, Inc. Method and system of controlled temperature mixing and molding of polymers with active agents for implantable medical devices
US7645474B1 (en) * 2003-07-31 2010-01-12 Advanced Cardiovascular Systems, Inc. Method and system of purifying polymers for use with implantable medical devices
US8158711B2 (en) * 2003-08-25 2012-04-17 Dow Global Technologies Llc Aqueous dispersion, its production method, and its use
US8779053B2 (en) 2003-08-25 2014-07-15 Dow Global Technologies Llc Coating compositions
US7763676B2 (en) 2003-08-25 2010-07-27 Dow Global Technologies Inc. Aqueous polymer dispersions and products from those dispersions
TW200517426A (en) 2003-08-25 2005-06-01 Dow Global Technologies Inc Aqueous dispersion, its production method, and its use
US7803865B2 (en) * 2003-08-25 2010-09-28 Dow Global Technologies Inc. Aqueous dispersion, its production method, and its use
US9169406B2 (en) 2003-08-25 2015-10-27 Dow Global Technologies Llc Coating compositions
US8946329B2 (en) 2003-08-25 2015-02-03 Dow Global Technologies Llc Coating compositions
US8349929B2 (en) * 2003-08-25 2013-01-08 Dow Global Technologies Llc Coating composition and articles made therefrom
US8722787B2 (en) 2003-08-25 2014-05-13 Dow Global Technologies Llc Coating composition and articles made therefrom
US8357749B2 (en) * 2003-08-25 2013-01-22 Dow Global Technologies Llc Coating composition and articles made therefrom
US7947776B2 (en) 2003-08-25 2011-05-24 Dow Global Technologies Llc Aqueous dispersion, its production method, and its use
KR101184709B1 (ko) * 2004-08-17 2012-09-20 플린트 그룹 인코포레이티드 유기성 안료 분산물 및 잉크 제조 방법
CA2585753A1 (en) * 2005-07-07 2007-01-18 Dow Global Technologies Inc. Long fiber-reinforced thermoplastic concentrate and method for its preparation
US8287949B2 (en) * 2005-07-07 2012-10-16 Dow Global Technologies Inc. Aqueous dispersions
US7528080B2 (en) * 2005-12-15 2009-05-05 Dow Global Technologies, Inc. Aqueous polyolefin dispersions for textile impregnation
US8043713B2 (en) * 2005-12-15 2011-10-25 Dow Global Technologies Llc Compositions and aqueous dispersions
CA2634040A1 (en) 2005-12-15 2007-07-12 Dow Global Technologies Inc. Improved cellulose articles containing an additive composition
US20070243331A1 (en) * 2006-02-17 2007-10-18 Dow Global Technologies Inc. Heat sealable compositions from aqueous dispersions
WO2009073512A1 (en) * 2007-11-29 2009-06-11 Dow Global Technologies Inc. Compounds and methods of forming compounds useful as a toner
US9547246B2 (en) * 2006-03-03 2017-01-17 Dow Global Technologies Llc Aqueous dispersions for use as toners
US8007978B2 (en) 2006-03-03 2011-08-30 Dow Global Technologies Llc Aqueous dispersions for use as toners
US8916640B2 (en) * 2006-07-06 2014-12-23 Dow Global Technologies Llc Blended polyolefin dispersions
US8785531B2 (en) * 2006-07-06 2014-07-22 Dow Global Technologies Llc Dispersions of olefin block copolymers
CN101535396A (zh) 2006-09-11 2009-09-16 陶氏环球技术公司 用于树脂涂覆的砂粒的聚烯烃分散体技术
US8476326B2 (en) * 2006-09-22 2013-07-02 Dow Global Technologies Llc Fibrillated polyolefin foam
US20080118728A1 (en) * 2006-10-20 2008-05-22 Dow Global Technologies Inc. Aqueous dispersions disposed on glass-based fibers and glass-containing substrates
EP2399615B1 (en) 2006-10-25 2014-08-06 Dow Global Technologies LLC Polyolefin dispersions, froths, and foams
DE602007006683D1 (de) * 2006-11-02 2010-07-01 Dow Global Technologies Inc Verfahren zur herstellung hochqualitativer ionomere
SI2109641T1 (sl) * 2007-01-17 2017-08-31 Agrofresh Inc. Dobava etilen blokirnega in promocijskega sedstva
EP2115213A1 (en) * 2007-02-08 2009-11-11 Dow Global Technologies Inc. Flexible conductive polymeric sheet
EP2197942A2 (en) 2007-09-28 2010-06-23 Dow Global Technologies Inc. Dispersions of higher crystallinity olefins
US8475878B2 (en) * 2007-10-25 2013-07-02 Dow Global Technologies Llc Polyolefin dispersion technology used for porous substrates
JP5509089B2 (ja) 2007-11-15 2014-06-04 ダウ グローバル テクノロジーズ エルエルシー コーティング組成物、コーティングされた物品およびそのような物品の製造方法
BRPI0818106B1 (pt) * 2007-11-15 2018-12-26 Dow Global Technologies Inc composição de revestimento, produto revestido e método para formar um produto revestido.
WO2009086091A1 (en) 2007-12-21 2009-07-09 Dow Global Technologies Inc. Carpet, carpet backing and method for making same using olefin block copolymers
JP5548699B2 (ja) 2008-12-22 2014-07-16 ダウ グローバル テクノロジーズ エルエルシー 織りカーペット用塗料化合物、関連使用方法、及びそれらから造られる物品
JP2014506305A (ja) 2010-12-29 2014-03-13 ダウ グローバル テクノロジーズ エルエルシー ケーブル強度部材の製造方法
CN103597027B (zh) 2011-06-10 2017-01-18 陶氏环球技术有限责任公司 制造水性倾点下降剂分散体组合物的方法
EP2551298B1 (en) 2011-07-27 2014-12-31 Dow Global Technologies LLC Redispersible polymer powder from polyolefin dispersions and the use thereof in construction applications
TR201810220T4 (tr) 2012-06-29 2018-08-27 Dow Global Technologies Llc Epoksi reçine karışım dispersiyonu ve dispersiyonun hazırlanması için bir işlem.
CN105026502B (zh) 2012-12-28 2020-12-04 陶氏环球技术有限责任公司 涂料组合物和由其制成的物品
JP6328659B2 (ja) 2012-12-28 2018-05-23 ダウ グローバル テクノロジーズ エルエルシー コーティング組成物
US10053597B2 (en) 2013-01-18 2018-08-21 Basf Se Acrylic dispersion-based coating compositions
CN105492028B (zh) 2013-08-29 2018-12-25 陶氏环球技术有限责任公司 生产水性分散液的方法、由此生产的水性分散液和包含水性分散液的包衣组合物
BR112016015429A2 (pt) 2013-12-30 2017-08-08 Avery Dennison Corp Filmes compostáveis e etiquetas compostáveis
EP3169314A1 (en) 2014-07-17 2017-05-24 Dow Global Technologies LLC Ethylcellulose dispersion and film
WO2016025568A1 (en) 2014-08-15 2016-02-18 Dow Global Technologies Llc Ethylcellulose dispersion and powder
US20170292010A1 (en) 2014-09-30 2017-10-12 Dow Global Technologies Llc AQUEOUS ETHYLCELLULOSE DISPERSIONS With polymeric additive
CN107429106B (zh) 2015-03-18 2020-03-31 陶氏环球技术有限责任公司 制作弹性体聚烯烃外壳的方法
US10723892B2 (en) 2015-03-31 2020-07-28 Dow Global Technologies Llc Spray dried polyolefin elastomer powder for rotational molding processes
CN108474171A (zh) 2016-01-05 2018-08-31 陶氏环球技术有限责任公司 用于现场固化管的复合材料
US20190263033A1 (en) 2016-06-08 2019-08-29 Dow Global Technologies Llc Method to make a composite automotive trim part
US20210078218A1 (en) 2017-06-06 2021-03-18 Dow Global Technologies Llc Process to make a composite automotive trim part
BR112020005821B1 (pt) 2017-09-27 2023-05-09 Dow Global Technologies Llc Forro de tubo de múltiplas camadas flexível e compósito flexível
WO2019113142A1 (en) 2017-12-06 2019-06-13 Dow Global Technologies Llc Flotation separation aid useful for collection of mineral ore fines
US20220002564A1 (en) 2018-10-17 2022-01-06 Dow Global Technologies Llc A coating composition, a coated fabric, a method of making a coated fabric, and an article made from the coated fabric
JP7422748B2 (ja) 2018-10-17 2024-01-26 ダウ グローバル テクノロジーズ エルエルシー コーティング組成物、コーティングされた布、コーティングされた布を作製する方法、およびコーティングされた布から作製された物品
EP3867106A1 (en) 2018-10-17 2021-08-25 Dow Global Technologies, LLC A coating composition, a coated fabric, a method of making a coated fabric, and an article made from the coated fabric
US12157846B2 (en) 2019-02-26 2024-12-03 Moresco Corporation Method for producing hot melt adhesive and hot melt adhesive
WO2020175188A1 (ja) * 2019-02-26 2020-09-03 株式会社Moresco エチレン酢酸ビニル系ホットメルト接着剤の製造方法及びホットメルト接着剤
US12421329B1 (en) * 2024-12-23 2025-09-23 Useon Technology Limited Continuous dynamic and efficient devolatilization method for polymer/volatile system based on high mass transfer interfaces

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156009A (en) * 1960-12-30 1964-11-10 Standard Oil Co Devolatilizing extruder
US3476736A (en) * 1966-04-14 1969-11-04 Phillips Petroleum Co Solvent removal from polyolefin in vented extruder with water addition
US3799235A (en) * 1970-11-27 1974-03-26 Firestone Tire & Rubber Co Method and apparatus for desolventizing elastomers
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and vapor stripping in screw devolatilizer
US3799234A (en) * 1971-02-22 1974-03-26 Welding Engineers Countercurrent vapor stripping in screw devolatilizer
US3992500A (en) * 1974-06-07 1976-11-16 Koehring Company Vented extruder
JPS5111882A (en) * 1974-07-20 1976-01-30 Sumitomo Chemical Co Mihannotanryotaio jokyosuruhoho
JPS5249267A (en) * 1975-10-17 1977-04-20 Japan Steel Works Ltd Degassing modifying extruder
US4107422A (en) * 1977-02-02 1978-08-15 Phillips Petroleum Company Solvent removal from polymer solutions
DE2800632C3 (de) * 1978-01-07 1981-02-19 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Schneckenstrangpresse für thermoplastische Kunststoffe
US4690981A (en) * 1983-03-21 1987-09-01 E. I. Du Pont De Nemours And Company Ionomers having improved low temperature properties
DE3310676A1 (de) * 1983-03-24 1984-09-27 Basf Ag, 6700 Ludwigshafen Verfahren und vorrichtung zum entfernen von fluechtigen anteilen aus polymerenschmelzen oder paste
US4927888A (en) * 1986-09-05 1990-05-22 The Dow Chemical Company Maleic anhydride graft copolymers having low yellowness index and films containing the same
JPH0621130B2 (ja) * 1985-04-09 1994-03-23 三菱油化株式会社 アイオノマ−樹脂の製造法
FR2598350B1 (fr) * 1986-05-06 1989-11-17 Bp Chimie Sa Procede et dispositif pour degazer et pour transformer en granules des particules de polyolefines obtenues par polymerisation en phase gazeuse
US4909898A (en) * 1986-10-01 1990-03-20 Polysar Limited Polymer recovery from solution
JP2635354B2 (ja) * 1988-03-02 1997-07-30 住友ゴム工業株式会社 変性アイオノマー樹脂の製法
DE3815487A1 (de) * 1988-05-06 1989-11-16 Basf Ag Verfahren zur niederdruckcopolymerisation von ethylen mit (alpha)-olefinen und ethylencopolymerisate mit niederem restmonomerengehalt
US4958006A (en) * 1988-06-28 1990-09-18 Union Carbide Chemicals And Plastics Inc. Fluidized bed product discharge process
DE3822069A1 (de) * 1988-06-30 1990-01-18 Basf Ag Verfahren zur ionischen vernetzung eines ethylencopolymerisates, ionisch vernetzte ethylencopolymerisate und deren verwendung als haftvermittler, spritzgussartikel oder beschichtungsfolie
US4952672A (en) * 1988-08-11 1990-08-28 The Dow Chemical Company Method for the devolatilization of thermoplastic materials
US4944906A (en) * 1988-10-11 1990-07-31 Spirex Corporation Methods of injection molding and extruding wet hygroscopic ionomers
DE3840293A1 (de) * 1988-11-30 1990-05-31 Werner & Pfleiderer Verfahren zum entfernen von verunreinigungen aus polymeren kunststoffen und vorrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
US5756659A (en) 1998-05-26
FI924965A0 (fi) 1992-11-03
ES2111635T3 (es) 1998-03-16
FI924965A7 (fi) 1992-11-03
CA2081105A1 (en) 1992-09-05
DE69224242D1 (de) 1998-03-05
TW246679B (cs) 1995-05-01
EP0527225B1 (en) 1998-01-28
EP0527225A1 (en) 1993-02-17
JPH05506692A (ja) 1993-09-30
WO1992015621A1 (en) 1992-09-17
CA2081105C (en) 2004-10-05
DE69224242T2 (de) 1998-05-14
JP3174915B2 (ja) 2001-06-11

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