DE69224242D1 - Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren - Google Patents

Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren

Info

Publication number
DE69224242D1
DE69224242D1 DE69224242T DE69224242T DE69224242D1 DE 69224242 D1 DE69224242 D1 DE 69224242D1 DE 69224242 T DE69224242 T DE 69224242T DE 69224242 T DE69224242 T DE 69224242T DE 69224242 D1 DE69224242 D1 DE 69224242D1
Authority
DE
Germany
Prior art keywords
improving
thermal stability
ethylene polymers
oxidative thermal
oxidative
Prior art date
Legal status (The legal status 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 status listed.)
Revoked
Application number
DE69224242T
Other languages
English (en)
Other versions
DE69224242T2 (de
Inventor
Morgan Hughes
Michael Rowland
Chad Strait
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
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=DE69224242(D1) "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
Application granted granted Critical
Publication of DE69224242D1 publication Critical patent/DE69224242D1/de
Publication of DE69224242T2 publication Critical patent/DE69224242T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/762—Vapour 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)
DE69224242T 1991-03-04 1992-03-04 Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren Revoked DE69224242T2 (de)

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 (2)

Publication Number Publication Date
DE69224242D1 true DE69224242D1 (de) 1998-03-05
DE69224242T2 DE69224242T2 (de) 1998-05-14

Family

ID=24664075

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224242T Revoked DE69224242T2 (de) 1991-03-04 1992-03-04 Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren

Country Status (9)

Country Link
US (1) US5756659A (de)
EP (1) EP0527225B1 (de)
JP (1) JP3174915B2 (de)
CA (1) CA2081105C (de)
DE (1) DE69224242T2 (de)
ES (1) ES2111635T3 (de)
FI (1) FI924965A0 (de)
TW (1) TW246679B (de)
WO (1) WO1992015621A1 (de)

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
US6348091B1 (en) 1999-09-17 2002-02-19 Flint Ink Corporation Process and apparatus for preparing pigment flush in response to a material property value
KR20040034251A (ko) * 2002-10-21 2004-04-28 삼성에스디아이 주식회사 전계방출소자
US7645474B1 (en) * 2003-07-31 2010-01-12 Advanced Cardiovascular Systems, Inc. Method and system of purifying polymers for use with implantable medical devices
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
US8946329B2 (en) 2003-08-25 2015-02-03 Dow Global Technologies Llc Coating compositions
US8722787B2 (en) 2003-08-25 2014-05-13 Dow Global Technologies Llc Coating composition and articles made therefrom
US8158711B2 (en) * 2003-08-25 2012-04-17 Dow Global Technologies Llc Aqueous dispersion, its production method, and its use
US7763676B2 (en) 2003-08-25 2010-07-27 Dow Global Technologies Inc. Aqueous polymer dispersions and products from those dispersions
US8357749B2 (en) * 2003-08-25 2013-01-22 Dow Global Technologies Llc Coating composition and articles made therefrom
US7803865B2 (en) * 2003-08-25 2010-09-28 Dow Global Technologies Inc. Aqueous dispersion, its production method, and its use
US8349929B2 (en) * 2003-08-25 2013-01-08 Dow Global Technologies Llc Coating composition and articles made therefrom
TW200517426A (en) 2003-08-25 2005-06-01 Dow Global Technologies Inc Aqueous dispersion, its production method, and its use
US7947776B2 (en) 2003-08-25 2011-05-24 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
US9169406B2 (en) 2003-08-25 2015-10-27 Dow Global Technologies Llc Coating compositions
CN101044212B (zh) * 2004-08-17 2011-06-08 弗林特集团公司 制备有机颜料分散体和油墨的方法
MX2007005647A (es) * 2005-07-07 2007-06-05 Dow Global Technologies Inc Concentrado termoplastico reforzado con fibra larga y metodo para su preparacion.
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
EP1963573B1 (de) 2005-12-15 2016-02-17 Dow Global Technologies LLC Verbesserte zelluloseartikel mit einer zusatzzusammensetzung
US20070243331A1 (en) * 2006-02-17 2007-10-18 Dow Global Technologies Inc. Heat sealable compositions from aqueous dispersions
US8007978B2 (en) 2006-03-03 2011-08-30 Dow Global Technologies Llc Aqueous dispersions for use as toners
US9547246B2 (en) * 2006-03-03 2017-01-17 Dow Global Technologies Llc Aqueous dispersions for use as toners
US8785531B2 (en) * 2006-07-06 2014-07-22 Dow Global Technologies Llc Dispersions of olefin block copolymers
US8916640B2 (en) * 2006-07-06 2014-12-23 Dow Global Technologies Llc Blended polyolefin dispersions
RU2418012C2 (ru) 2006-09-11 2011-05-10 Дау Глобал Текнолоджиз Инк. Технология полиолефиновой дисперсии, примененная для песка, покрытого смолой
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
CA2667457A1 (en) 2006-10-25 2008-05-02 Dow Global Technologies Inc. Polyolefin dispersions, froths, and foams
KR101408452B1 (ko) 2006-11-02 2014-06-17 다우 글로벌 테크놀로지스 엘엘씨 고품질 이오노머의 제조 방법
BRPI0806751B1 (pt) * 2007-01-17 2018-08-14 Agrofresh Inc. Liberação de agentes de bloqueio e/ou promoção de etileno
WO2008098136A1 (en) * 2007-02-08 2008-08-14 Dow Global Technologies Inc. Flexible conductive polymeric sheet
EP2543393A3 (de) 2007-09-28 2013-10-30 Dow Global Technologies LLC Schaum hergestellt aus einer Dispersion aus Olefinen mit höherer Kristallinität
BRPI0816589B1 (pt) * 2007-10-25 2018-07-31 Dow Global Technologies Inc Método para formar um artigo
CN102119194B (zh) 2007-11-15 2013-07-10 陶氏环球技术有限责任公司 涂料组合物、涂覆制品和制备该制品的方法
WO2009064993A1 (en) 2007-11-15 2009-05-22 Dow Global Technologies Inc. A coating composition, a coated article, and method of forming such articles
CN103513528A (zh) * 2007-11-29 2014-01-15 陶氏环球技术有限责任公司 配混物和形成可用作调色剂的配混物的方法
WO2009086091A1 (en) 2007-12-21 2009-07-09 Dow Global Technologies Inc. Carpet, carpet backing and method for making same using olefin block copolymers
WO2010075251A1 (en) 2008-12-22 2010-07-01 Dow Global Technologies Inc. Woven carpet coating compounds, associated methods of use, and articles made therefrom
BR112013016784B1 (pt) 2010-12-29 2020-03-31 Dow Global Technologies Llc Método para produzir um componente resistente para um cabo de fibra óptica e cabo de fibra óptica
WO2012170242A1 (en) 2011-06-10 2012-12-13 Dow Global Technologies Llc Method t0 make an aqueous pour point depressant dispersion composition
EP2551298B1 (de) 2011-07-27 2014-12-31 Dow Global Technologies LLC Redispergierbares Polymerpulver aus Polyolefindispersionen und dessen Verwendung bei Konstruktionsanwendungen
JP6352256B2 (ja) 2012-06-29 2018-07-04 ダウ グローバル テクノロジーズ エルエルシー エポキシ樹脂ブレンド分散体およびその分散体の調製方法
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
JP6258968B2 (ja) 2012-12-28 2018-01-10 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およびそれから作製される物品
ES2688532T3 (es) 2013-01-18 2018-11-05 Basf Se Composiciones de recubrimiento a base de dispersión acrílica
US9969897B2 (en) 2013-08-29 2018-05-15 Rohm And Haas Company Process to produce an aqueous dispersion, an aqueous dispersion produced thereby and a coating composition comprising the aqueous dispersion
CN115384159A (zh) 2013-12-30 2022-11-25 艾利丹尼森公司 可堆肥膜和可堆肥标签
EP3169314A1 (de) 2014-07-17 2017-05-24 Dow Global Technologies LLC Ethylcellulosedispersion und folie
CN106574056A (zh) 2014-08-15 2017-04-19 陶氏环球技术有限责任公司 乙基纤维素分散液和粉末
KR20170063685A (ko) 2014-09-30 2017-06-08 다우 글로벌 테크놀로지스 엘엘씨 폴리머성 첨가제를 사용한 수성 에틸셀룰로오스 분산물
KR101568798B1 (ko) * 2015-01-15 2015-11-12 주식회사 티알켐텍 줄눈 보수용 스크래퍼
WO2016148897A1 (en) 2015-03-18 2016-09-22 Dow Global Technologies Llc Method to make an elastormeric polyolefin skin
US10723892B2 (en) 2015-03-31 2020-07-28 Dow Global Technologies Llc Spray dried polyolefin elastomer powder for rotational molding processes
US20190017222A1 (en) 2016-01-05 2019-01-17 Dow Global Technologies Llc Composites for cured-in-place pipe
EP3468762A1 (de) 2016-06-08 2019-04-17 Dow Global Technologies, LLC Verfahren zur herstellung eines verbundverkleidungsteils für kraftfahrzeuge
WO2018226210A1 (en) 2017-06-06 2018-12-13 Dow Global Technologies Llc Process to make a composite automotive trim part
CN111132825A (zh) 2017-09-27 2020-05-08 陶氏环球技术有限责任公司 原位固化管的耐磨柔性复合材料和多层管衬垫
WO2019113142A1 (en) 2017-12-06 2019-06-13 Dow Global Technologies Llc Flotation separation aid useful for collection of mineral ore fines
US20220002565A1 (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
WO2020081279A1 (en) 2018-10-17 2020-04-23 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
CN112867640B (zh) 2018-10-17 2024-03-29 陶氏环球技术有限责任公司 涂料组合物、经涂布织物、制造经涂布织物的方法以及由经涂布织物制成的制品
JP6948488B2 (ja) * 2019-02-26 2021-10-13 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
US20220372340A1 (en) * 2019-02-26 2022-11-24 Moresco Corporation Method for producing hot melt adhesive and hot melt adhesive

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
US3799234A (en) * 1971-02-22 1974-03-26 Welding Engineers Countercurrent vapor stripping in screw devolatilizer
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and 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
CA2081105A1 (en) 1992-09-05
DE69224242T2 (de) 1998-05-14
CA2081105C (en) 2004-10-05
JPH05506692A (ja) 1993-09-30
TW246679B (de) 1995-05-01
EP0527225A1 (de) 1993-02-17
ES2111635T3 (es) 1998-03-16
JP3174915B2 (ja) 2001-06-11
FI924965A (fi) 1992-11-03
EP0527225B1 (de) 1998-01-28
WO1992015621A1 (en) 1992-09-17
FI924965A0 (fi) 1992-11-03

Similar Documents

Publication Publication Date Title
DE69224242D1 (de) Verfahren zur Verbesserung der oxidativen thermischen Stabilität von Ethylenpolymeren
DE69228265D1 (de) Verfahren zur Herstellung von Ethylenpolymeren
DE69116182D1 (de) Verfahren zur Herstellung von alpha-Olefinpolymeren
DE69307472D1 (de) Verfahren zur Herstellung von Alpha-Olefinpolymeren
DE59010898D1 (de) Verfahren zur Herstellung von Ethylenpolymeren
DE69404257D1 (de) Verfahren zur Herstellung von alpha-Olefinpolymeren
DE69217878D1 (de) Verfahren zur Herstellung von Polymerisationskatalysator
DE69116623D1 (de) Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan
DE69129600D1 (de) Verfahren zur Herstellung von Norbornenpolymeren
DE69323125D1 (de) Verfahren zur Umwandlung von Polymeren
DE69412623D1 (de) Verfahren zur Herstellung von Oligomeren von alpha-Olefinen
DE69209102D1 (de) Verfahren zur Herstellung von Ethylenpolymere
DE69225177D1 (de) Verfahren zur Verbesserung der Lagerungsstabilität von Pigmenten
DE69023950D1 (de) Verfahren zur Herstellung von Olefinpolymeren.
DE69119011D1 (de) Verfahren zur Herstellung von Olefinoligomeren
DE59205580D1 (de) Verfahren zur Herstellung von Polymerisaten des Tetrafluorethylens
DE59302486D1 (de) Verfahren zur Herstellung von Propenoligomeren
DE69709236D1 (de) Verfahren zur Herstellung von Ethylenpolymeren
DE69316271D1 (de) Verfahren zur Herstellung von Alpha-Olefinpolymeren
DE69209256D1 (de) Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan
DE69025964D1 (de) Verfahren zur Herstellung von Ethylencopolymeren
DE3678637D1 (de) Verfahren zur verbesserung der reinheit von propylenpolymeren.
DE3689248D1 (de) Verfahren zur Verbesserung der Reinheit von Propylenpolymeren.
DE69215001D1 (de) Verfahren zur Herstellung von Biarylverbindungen
DE69008628D1 (de) Verfahren zur Dimerisierung von aromatischen Halogenverbindungen.

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation