ZA815286B - Degassing process for removing unpolymerized monomers from olefin polymers - Google Patents

Degassing process for removing unpolymerized monomers from olefin polymers

Info

Publication number
ZA815286B
ZA815286B ZA815286A ZA815286A ZA815286B ZA 815286 B ZA815286 B ZA 815286B ZA 815286 A ZA815286 A ZA 815286A ZA 815286 A ZA815286 A ZA 815286A ZA 815286 B ZA815286 B ZA 815286B
Authority
ZA
South Africa
Prior art keywords
olefin polymers
degassing process
unpolymerized monomers
removing unpolymerized
monomers
Prior art date
Application number
ZA815286A
Other languages
English (en)
Inventor
Robert William Bobst
Billy Jack Garner
Frederick William Jacob
Original Assignee
Union Carbide Corp
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=22672552&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA815286(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ZA815286B publication Critical patent/ZA815286B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/005—Removal of residual monomers by physical means from solid polymers

Landscapes

  • 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)
ZA815286A 1980-09-02 1981-07-31 Degassing process for removing unpolymerized monomers from olefin polymers ZA815286B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/183,375 US4372758A (en) 1980-09-02 1980-09-02 Degassing process for removing unpolymerized monomers from olefin polymers

Publications (1)

Publication Number Publication Date
ZA815286B true ZA815286B (en) 1982-08-25

Family

ID=22672552

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA815286A ZA815286B (en) 1980-09-02 1981-07-31 Degassing process for removing unpolymerized monomers from olefin polymers

Country Status (19)

Country Link
US (1) US4372758A (xx)
EP (1) EP0047077B1 (xx)
JP (1) JPS5776006A (xx)
KR (1) KR830006335A (xx)
AR (1) AR226742A1 (xx)
AU (1) AU545086B2 (xx)
BR (1) BR8105547A (xx)
CA (1) CA1171591A (xx)
DD (1) DD201909A5 (xx)
DE (1) DE3173767D1 (xx)
DK (1) DK386981A (xx)
FI (1) FI812638L (xx)
GR (1) GR74665B (xx)
IL (1) IL63601A0 (xx)
MA (1) MA19261A1 (xx)
MX (1) MX158455A (xx)
NO (1) NO812917L (xx)
PL (1) PL232874A1 (xx)
ZA (1) ZA815286B (xx)

Families Citing this family (126)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425125A1 (de) * 1984-07-07 1986-01-16 Bayer Ag, 5090 Leverkusen Verfahren zum entfernen von unerwuenschten restbestandteilen, insbesondere niedermolekularen komponenten, aus festen polymeren
US4666998A (en) * 1984-12-31 1987-05-19 Mobil Oil Corporation Closed loop recycle of vent gas in polymerization process
AU576409B2 (en) * 1984-12-31 1988-08-25 Mobil Oil Corporation Fluidized bed olefin polymerization process
US4710538A (en) 1986-03-10 1987-12-01 Union Carbide Corporation Process for the production of a sticky polymer
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
US4727122A (en) * 1986-09-04 1988-02-23 Mobil Oil Corporation Recovery of unreacted monomers in olefin polymerization process
US4731438A (en) * 1986-12-30 1988-03-15 Union Carbide Corporation Water treatment method for resin in a purge vessel
US4758654A (en) * 1987-04-28 1988-07-19 Union Carbide Corporation Method for treating resin in a purge vessel
ATE68504T1 (de) * 1988-04-29 1991-11-15 Union Carbide Corp Verfahren zur behandlung von harzen in einem reinigungsgefaess.
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
JP2565753B2 (ja) * 1988-09-19 1996-12-18 住友化学工業株式会社 ポリプロピレン成形品
DE3840293A1 (de) * 1988-11-30 1990-05-31 Werner & Pfleiderer Verfahren zum entfernen von verunreinigungen aus polymeren kunststoffen und vorrichtung zur durchfuehrung des verfahrens
US4910295A (en) * 1989-04-28 1990-03-20 Union Carbide Chemicals And Plastics Company Inc. Process for reducing the odor of ethylidene norbornene present in EPDM resin
KR920021591A (ko) * 1991-05-17 1992-12-18 티모시 엔. 비숍 올리핀 중합체로부터 중합되지 않은 단량체를 제거하기 위한 가스 제거 방법
US5191062A (en) * 1991-09-27 1993-03-02 Union Carbide Chemicals & Plastics Technology Corporation Steam purging of granular epdm resins
US5276135A (en) * 1992-03-20 1994-01-04 E. I. Du Pont De Nemours And Company Stabilized copolymers of ethylene with ethylenically unsaturated carboxylic acids
US5322927A (en) * 1992-09-02 1994-06-21 The Boc Group, Inc. Method for producing polymers
KR0169505B1 (ko) * 1992-09-11 1999-01-15 오오쓰끼 아끼히꼬 약제 포장용 폴리올레핀 포장재, 그의 제조방법 및 약제 포장용 용기
US5292863A (en) * 1992-11-02 1994-03-08 Union Carbide Chemicals Process for removing unpolymerized gaseous monomers from olefin polymers
US5376742A (en) * 1993-09-23 1994-12-27 Quantum Chemical Corporation Monomer recovery in gas phase fluid bed olefin polymerization
US5391656A (en) * 1993-09-24 1995-02-21 Union Carbide Chemicals & Plastics Technology Corporation Recovery of unreacted monomers in an olefin polymerization process
FR2719847B1 (fr) * 1994-05-16 1996-08-09 Bp Chemicals Snc Procédé de polymérisation d'oléfine en phase gazeuse.
US5478922A (en) * 1994-07-08 1995-12-26 Union Carbide Chemicals & Plastics Technology Corporation Process for post reactor purging of residual monomers from solid polymer resins
US5681908A (en) * 1995-03-03 1997-10-28 Advanced Extraction Technologies, Inc. Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes
US5521264A (en) * 1995-03-03 1996-05-28 Advanced Extraction Technologies, Inc. Gas phase olefin polymerization process with recovery of monomers from reactor vent gas by absorption
TW440572B (en) * 1996-04-11 2001-06-16 Mitsui Petrochemical Ind Method of drying solid polymer and drying apparatus
US5861474A (en) * 1996-07-23 1999-01-19 The Dow Chemical Company Polymer devolatilization
US6239235B1 (en) * 1997-07-15 2001-05-29 Phillips Petroleum Company High solids slurry polymerization
KR100531628B1 (ko) 1998-03-20 2005-11-29 엑손모빌 케미칼 패턴츠 인코포레이티드 연속적인 슬러리 중합반응의 휘발물질 제거
CN1166444C (zh) 1998-03-20 2004-09-15 埃克森美孚化学专利公司 浆液聚合中的挥发性物质的连续除去
US7268194B2 (en) * 1998-03-20 2007-09-11 Exxonmobil Chemical Patents Inc. Continuous slurry polymerization process and apparatus
US6281300B1 (en) * 1998-03-20 2001-08-28 Exxon Chemical Patents, Inc. Continuous slurry polymerization volatile removal
US20020111441A1 (en) 1998-03-20 2002-08-15 Kendrick James Austin Continuous slurry polymerization volatile removal
US6028166A (en) * 1998-06-02 2000-02-22 Dallas Semiconductor Corporation Method and apparatus for generating a continuous source of mixed and degassed resin
US6214903B1 (en) 1998-06-16 2001-04-10 Union Carbide Chemicals & Plastics Technology Corporation Post-reactor process for treating polymers prepared in a gas phase polymerization in the presence of an inert particulate material
US6255411B1 (en) 1999-04-07 2001-07-03 Union Carbide Chemicals & Plastics Technology Corporation Reactor product discharge system
EP1203030A4 (en) * 1999-07-15 2003-08-13 Conocophillips Co SLUDGE DRAINAGE BY FURSCH
DE19938574A1 (de) * 1999-08-17 2001-02-22 Stockhausen Chem Fab Gmbh Verfahren und Vorrichtung zur Entfernung von Sauerstoff aus wässrigen Monomerenlösungen
GB0110161D0 (en) * 2001-04-25 2001-06-20 Bp Chem Int Ltd Polymer treatment
GB0118609D0 (en) * 2001-07-31 2001-09-19 Bp Chem Int Ltd Degassing process
CN100413841C (zh) * 2002-01-08 2008-08-27 三菱化学株式会社 防止处理(甲基)丙烯酸及其酯的设备堵塞的方法
CN1297572C (zh) * 2002-03-29 2007-01-31 三井化学株式会社 聚合物制造设备的废气回收利用方法
EP2019119B1 (en) * 2002-10-30 2013-06-12 INEOS Manufacturing Belgium NV Polymer treatment
AU2003288146A1 (en) * 2002-11-22 2004-06-18 Basell Polyolefine Gmbh Safe removal of volatile, oxidizable compounds from particles, in particular polymer particles
US20040167348A1 (en) * 2003-02-26 2004-08-26 Prasad Vidyanatha A. Methods for purifying O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates
DE102004011324B4 (de) * 2004-03-09 2023-10-19 Coperion Gmbh Verfahren und Anlage zum Entgasen von Restmonomere enthaltendem Polyolefin-Granulat
US7491776B2 (en) * 2004-06-21 2009-02-17 Exxonmobil Chemical Patents Inc. Polymerization process
US7691956B2 (en) * 2004-06-21 2010-04-06 Exxonmobil Chemical Patents Inc. Polymerization process
WO2006009977A1 (en) * 2004-06-21 2006-01-26 Exxonmobil Chemical Patents Inc. Polymerization process
EP1832404A1 (en) * 2006-03-07 2007-09-12 Total Petrochemicals Research Feluy An apparatus and method for degassing polymer powder
WO2008024517A2 (en) 2006-08-25 2008-02-28 Chevron Phillips Chemical Company Lp Method and apparatus for managing volatile organic content in polyolefin
US20100239914A1 (en) * 2009-03-19 2010-09-23 Sion Power Corporation Cathode for lithium battery
WO2009070261A2 (en) 2007-11-27 2009-06-04 Univation Technologies, Llc Integrated hydrocarbons feed stripper and method of using the same
US20090214395A1 (en) * 2008-02-27 2009-08-27 The Dow Chemical Company Raw Material Efficiency Method and Process
EP2172495A1 (en) 2008-10-03 2010-04-07 Ineos Europe Limited Method for the production of polymers
EP2172494A1 (en) 2008-10-03 2010-04-07 Ineos Europe Limited Process
EP2350138B1 (en) * 2008-11-26 2012-11-14 Univation Technologies, LLC Systems using mass flow promoting insert with gas purging and methods thereof
KR101775736B1 (ko) 2009-03-26 2017-09-06 세키스이가세이힝코교가부시키가이샤 복합 수지 입자 중의 악취의 저감 방법 및 복합 수지 입자
EP2357035A1 (en) 2010-01-13 2011-08-17 Ineos Europe Limited Polymer powder storage and/or transport and/or degassing vessels
EP2404942A1 (en) 2010-07-08 2012-01-11 Ineos Commercial Services UK Limited Interlock and process
EP2404943A1 (en) 2010-07-08 2012-01-11 Ineos Commercial Services UK Limited Interlock and process
EP2404665A1 (en) 2010-07-08 2012-01-11 Ineos Commercial Services UK Limited Interlock and process
MY161690A (en) 2010-07-09 2017-05-15 Univation Tech Llc Ethylene expansion for low temperature refrigeration in polyethylene vent recovery
US9126353B2 (en) * 2010-11-03 2015-09-08 Ineos Olefins & Polymers Usa Method and apparatus for making polyolefin pellets
ES2750274T3 (es) * 2010-11-03 2020-03-25 Ineos Usa Llc Tratamiento posterior de resinas de poliolefina granuladas
CN102161715B (zh) * 2011-01-31 2012-06-06 浙江大学 一种固体聚合物脱气及排放气回收的方法和装置
EP2743278A1 (en) 2012-12-11 2014-06-18 Basell Polyolefine GmbH Process for degassing and buffering polyolefin particles obtained by olefin polymerization
EP2796474B1 (en) 2013-04-22 2018-01-10 Borealis AG Multistage process for producing polypropylene compositions
EP2796473B1 (en) 2013-04-22 2017-05-31 Borealis AG Multistage process for producing low-temperature resistant polypropylene compositions
EP2796472B1 (en) 2013-04-22 2017-06-28 Borealis AG Two-stage process for producing polypropylene compositions
CN103520946B (zh) 2013-09-25 2015-11-25 杭州双安科技有限公司 用于在烯烃聚合物生产中回收排放气的系统和方法
EP2853562A1 (en) 2013-09-27 2015-04-01 Borealis AG Two-stage process for producing polypropylene compositions
EP2860203B1 (en) 2013-10-10 2016-12-14 Borealis AG Multistage process for producing polyethylene compositions
KR101534149B1 (ko) 2013-11-29 2015-07-03 롯데케미칼 주식회사 폴리올레핀의 정제 방법
EP2883887A1 (en) 2013-12-13 2015-06-17 Borealis AG Multistage process for producing polyethylene compositions
EP2883885A1 (en) 2013-12-13 2015-06-17 Borealis AG Multistage process for producing polyethylene compositions
EP3110542A1 (en) * 2014-02-26 2017-01-04 Ineos Europe AG Polymerisation process and polymerisation unit comprising a degassing section
EP2913345B1 (en) 2014-02-28 2016-11-02 Borealis AG Gas phase polymerization process
EP2913346B1 (en) 2014-02-28 2016-11-02 Borealis AG Process for polymerizing olefins in a fluidized bed
CN106715067A (zh) 2014-12-08 2017-05-24 博里利斯股份公司 丙烯共聚物粒料的制备方法
WO2016102548A1 (en) 2014-12-22 2016-06-30 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
WO2016102546A1 (en) 2014-12-22 2016-06-30 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
US10723870B2 (en) 2015-02-20 2020-07-28 Borealis Ag Process for producing heterophasic copolymers of propylene
EP3274374B1 (en) 2015-03-24 2018-10-24 SABIC Global Technologies B.V. Process for transitioning between incompatible catalysts
HUE039059T2 (hu) 2015-06-12 2018-12-28 Borealis Ag Eljárás és berendezés olefinek gázfázisban történõ polimerizálására
EP3109261B1 (en) 2015-06-23 2018-12-26 Borealis AG Process for producing lldpe resins
CN107849168B (zh) 2015-07-31 2020-07-14 埃克森美孚化学专利公司 从烯烃聚合方法中回收未反应的单体
RU2738657C2 (ru) * 2015-11-05 2020-12-15 Эксонмобил Кемикэл Пейтентс Инк. Способы регулирования и системы, предназначенные для очистки полимерного продукта продувкой
CN108350120A (zh) 2015-11-05 2018-07-31 埃克森美孚化学专利公司 聚合物净化的控制方法与系统
EP3184167B8 (en) 2015-12-22 2022-03-30 Borealis AG A method for returning polymer to a fluidised bed reactor
EP3184166A1 (en) 2015-12-22 2017-06-28 Borealis AG A method for withdrawing agglomerates from a fluidised bed reactor
CN108431050B (zh) 2015-12-30 2020-08-21 Sabic环球技术有限责任公司 改进的以冷凝模式操作的气相烯烃聚合方法
EP3464457B1 (en) 2016-05-31 2021-09-01 Borealis AG Polymer composition and a process for production of the polymer composition
US20190256695A1 (en) 2016-06-22 2019-08-22 Borealis Ag Polymer composition and a process for production of the polymer composition
CN109689195B (zh) 2016-09-16 2021-09-24 格雷斯公司 高效聚合物颗粒吹扫的方法
PL3519444T3 (pl) 2016-09-28 2021-05-04 Borealis Ag Proces wytwarzania powlekanej rury
EP3544815B1 (en) 2016-11-25 2020-12-30 Borealis AG A process for producing polyolefin film composition and films prepared thereof
BR112019002951B1 (pt) 2016-11-25 2022-12-20 Borealis Ag Composição de polímero, artigo, uso da composição de polietileno, e, processo para a produção de uma composição de polímero
GB201620525D0 (en) 2016-12-02 2017-01-18 Ineos Europe Ag Process
CA3041908C (en) * 2016-12-23 2021-06-15 Borealis Ag Process for obtaining low volatile plastomers
US10029230B1 (en) 2017-01-24 2018-07-24 Chevron Phillips Chemical Company Lp Flow in a slurry loop reactor
WO2018204026A1 (en) 2017-05-05 2018-11-08 Exxonmobil Chemical Patents Inc. Methods and systems for recovering volatile volatile organic compounds from a purged polymer product
EP3418309A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement of preparing polymer
ES2786756T3 (es) 2017-06-20 2020-10-13 Borealis Ag Un método, una disposición y uso de una disposición para la polimerización de olefinas
EP3418330B2 (en) 2017-06-21 2023-07-19 Borealis AG Polymer composition and a process for production of the polymer composition
EP3418310B1 (en) 2017-06-23 2020-04-08 Borealis AG Process and apparatus for removing polymer material from a gas-solids olefin polymerization reactor
WO2019022799A1 (en) 2017-07-26 2019-01-31 Exxonmobil Chemical Patents Inc. REMOVAL OF NON-REAGENT MONOMERS AND OTHER MATERIALS FROM POLYOLEFIN PRODUCT PARTICLES
EP3661976A4 (en) * 2017-08-01 2021-08-25 ExxonMobil Chemical Patents Inc. PROCESS FOR RECOVERY OF POLYOLEFINE SOLIDS
US10730032B2 (en) 2018-05-16 2020-08-04 Chevron Phillips Chemical Company Lp Polymer flake degassing system and methods
CN112135845B (zh) 2018-06-14 2024-07-09 博里利斯股份公司 用于在具有改善的热均质性的气相反应器中聚合烯烃的方法
EP3810663A1 (en) * 2018-06-22 2021-04-28 Borealis AG Process for reducing the voc content of plastomers
EP3647328B1 (en) 2018-10-31 2023-09-06 Borealis AG Reduction in voc and fog values of polypropylene grades by aeration
EP3902850A1 (en) 2018-12-28 2021-11-03 Borealis AG A process for producing polyolefin film composition and films prepared thereof
WO2020136165A1 (en) 2018-12-28 2020-07-02 Borealis Ag A process for producing polyolefin film composition and films prepared thereof
US20220169758A1 (en) * 2019-03-07 2022-06-02 Nova Chemical (International) S.A. Devolatilization of plastomer pellets
ES2960940T3 (es) 2019-06-24 2024-03-07 Borealis Ag Proceso para preparar polipropileno con recuperación mejorada
EP3868793A1 (en) 2020-02-24 2021-08-25 Borealis AG Process for producing alpha-olefin polymers in a multistage polymerization process
US11578147B2 (en) * 2020-03-17 2023-02-14 Exxonmobil Chemical Patents Inc. Olefin polymerization processes
CN112625150A (zh) * 2020-12-04 2021-04-09 浙江大学 一种烯烃聚合物生产中兼顾树脂输送、脱气和排放气回收的装置和方法
CN112480291B (zh) * 2020-12-10 2023-04-07 天华化工机械及自动化研究设计院有限公司 一种进一步提升气相法生产聚丙烯产品品质的方法
EP4352121A1 (en) 2021-06-11 2024-04-17 Borealis AG A process for producing a multimodal ethylene polymer and films prepared therefrom
WO2024025742A1 (en) 2022-07-25 2024-02-01 Exxonmobil Chemical Patents Inc. Purged polymer, process and apparatus for production thereof
EP4344869A1 (en) 2022-09-30 2024-04-03 Borealis AG Multimodal ethylene copolymer composition and films comprising the same
WO2024083689A1 (en) 2022-10-18 2024-04-25 Borealis Ag Multilayer film
EP4403598A1 (en) 2023-01-23 2024-07-24 Borealis AG Polymer composition comprising recycled low density polyethylene for packaging applications

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982763A (en) * 1961-05-02 mcleod
CA836977A (en) * 1970-03-17 Du Pont Of Canada Limited Steam stripping of blenders
US3039864A (en) * 1958-11-21 1962-06-19 Aluminum Co Of America Treatment of molten light metals
US3227703A (en) * 1963-01-28 1966-01-04 Eastman Kodak Co Process for deodorizing thermally degraded, unoxidized polyolefins
US3307271A (en) * 1964-02-06 1967-03-07 Du Pont Process for drying polymers
US3450183A (en) * 1964-10-02 1969-06-17 Phillips Petroleum Co Polymer recovery apparatus
US3310882A (en) * 1964-11-20 1967-03-28 Phillips Petroleum Co Solids transfer and storage system
US3594356A (en) * 1967-04-24 1971-07-20 Phillips Petroleum Co Polymer recovery process and apparatus
DE1795396C3 (de) 1968-09-26 1982-05-19 Basf Ag, 6700 Ludwigshafen Verfahren zum Entfernen flüchtiger, Geruchsbelästigungen hervorrufender Bestandteile aus feinteiligen Olefinpolymerisaten
US3585164A (en) * 1969-03-18 1971-06-15 American Cyanamid Co Casting technique using purge gas
LU70739A1 (xx) * 1974-08-14 1976-08-19
US4217444A (en) * 1975-03-28 1980-08-12 Rhone-Poulenc Industries Method of degassing polymers prepared by mass polymerizing a monomeric composition based on vinyl chloride
DE2735355A1 (de) * 1977-08-05 1979-02-15 Basf Ag Verfahren zum herstellen von homo- und copolymerisaten des aethylens
US4260398A (en) * 1977-12-01 1981-04-07 Ransohoff Jackson A Countercurrent sparger
IT1094859B (it) * 1978-05-29 1985-08-10 Montedison Spa Processo per l'ottenimento di policarbonato granulare
US4206300A (en) * 1978-06-12 1980-06-03 Standand Oil Company Method for improving color and impact strength of nitrile polymers
JPS5575410A (en) * 1978-11-30 1980-06-06 Sumitomo Chem Co Ltd Drying method and apparatus for polyolefin

Also Published As

Publication number Publication date
AU7369881A (en) 1982-04-01
FI812638L (fi) 1982-03-03
EP0047077A1 (en) 1982-03-10
PL232874A1 (xx) 1982-08-02
JPS6247441B2 (xx) 1987-10-08
AU545086B2 (en) 1985-06-27
BR8105547A (pt) 1982-05-18
IL63601A0 (en) 1981-11-30
DK386981A (da) 1982-03-03
MA19261A1 (fr) 1982-04-01
DD201909A5 (de) 1983-08-17
CA1171591A (en) 1984-07-24
US4372758A (en) 1983-02-08
NO812917L (no) 1982-03-03
JPS5776006A (en) 1982-05-12
EP0047077B1 (en) 1986-02-12
MX158455A (es) 1989-02-02
GR74665B (xx) 1984-06-29
DE3173767D1 (en) 1986-03-27
AR226742A1 (es) 1982-08-13
KR830006335A (ko) 1983-09-24

Similar Documents

Publication Publication Date Title
DE3173767D1 (en) Degassing process for removing unpolymerized monomers from olefin polymers
RO85779B (ro) Procedeu de polimerizare sau copolimerizare a olefinelor
EP0069371A3 (en) Improved polymerization process for carboxyl containing polymers
GB2070035B (en) Process for producing -olefin polymers
DE3366614D1 (en) Polymerization process for carboxyl containing polymers
DE3365251D1 (en) Treatment process for (co)polymers to eliminate rest monomers
SG49184G (en) Method for removal of heat from an olefin polymerization reactor
DE3468420D1 (en) Process for removal of residual monomers from ethylene copolymers
PH16448A (en) Process for recovering vinyl polymers from emulsion polymerization latices
DE2967485D1 (en) Process and apparatus for the removal of olefin monomer from olefin polymers
FR2531073B1 (fr) Procede pour inhiber la polymerisation de composes aromatiques vinyliques
EP0091965A4 (en) PROCESS FOR AVOIDING THE DEPOSITION OF POLYMER INCRUSTATIONS DURING THE POLYMERIZATION OF A VINYL MONOMER.
ZA923568B (en) Degassing process for removing unpolymerized monomers from olefin polymers
DE3060354D1 (en) Process for removing residual monomers from abs polymers
BE895667A (fr) Procede de polymerisation d'ethylene
PH18264A (en) Process for forming film from low strain hardening polymers
GB2087410B (en) Propplene polymerization process
EP0111903A3 (en) Olefin polymerization catalysts and process for producing olefin polymers by using such catalysts
IE812009L (en) Degassing process for removing umpolymerized monomers from¹olefin polymers
BE890030A (fr) Procede de polymerisation continue
DE3068098D1 (en) Polymerization process
GB2089353B (en) Ethylenic monomer polymerization process
DE3370803D1 (en) Process for polymerizing ethylene
SU1175939A1 (ru) "cпocoб otдeлehия heпpopeaгиpobabшиx mohomepob ot (co) пoлиmepob эtилeha и уctpoйctbo для eгo ocущectbлehия"
DE3374201D1 (en) A process for removing polymer scale adhering to a polymerization vessel