IT1075391B - Metodo per la produzione di polietilene a bassa densita' - Google Patents

Metodo per la produzione di polietilene a bassa densita'

Info

Publication number
IT1075391B
IT1075391B IT22346/77A IT2234677A IT1075391B IT 1075391 B IT1075391 B IT 1075391B IT 22346/77 A IT22346/77 A IT 22346/77A IT 2234677 A IT2234677 A IT 2234677A IT 1075391 B IT1075391 B IT 1075391B
Authority
IT
Italy
Prior art keywords
production
density polyethylene
low density
polyethylene
low
Prior art date
Application number
IT22346/77A
Other languages
English (en)
Inventor
Akira Ito
Kenji Iwata
Original Assignee
Mitsui Toatsu Chemicals
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 Mitsui Toatsu Chemicals filed Critical Mitsui Toatsu Chemicals
Application granted granted Critical
Publication of IT1075391B publication Critical patent/IT1075391B/it

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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/02—Ethene
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/904—Monomer polymerized in presence of transition metal containing catalyst at least part of which is supported on a polymer, e.g. prepolymerized catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IT22346/77A 1976-04-13 1977-04-12 Metodo per la produzione di polietilene a bassa densita' IT1075391B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51040888A JPS6025444B2 (ja) 1976-04-13 1976-04-13 低密度ポリエチレンの製造方法

Publications (1)

Publication Number Publication Date
IT1075391B true IT1075391B (it) 1985-04-22

Family

ID=12593041

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22346/77A IT1075391B (it) 1976-04-13 1977-04-12 Metodo per la produzione di polietilene a bassa densita'

Country Status (8)

Country Link
US (1) US4190614A (it)
JP (1) JPS6025444B2 (it)
CA (1) CA1081899A (it)
DE (1) DE2714742C2 (it)
FR (1) FR2348231A1 (it)
GB (1) GB1532332A (it)
IT (1) IT1075391B (it)
NL (1) NL7703556A (it)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529512A (en) * 1978-08-22 1980-03-01 Nippon Oil Co Ltd Preparation of polyolefin
JPS5919567B2 (ja) * 1978-11-27 1984-05-07 昭和電工株式会社 改善されたエチレン系重合体の製造方法
JPS603324B2 (ja) * 1978-12-28 1985-01-28 三井化学株式会社 エチレン共重合体の製造方法
JPS5610506A (en) * 1979-07-09 1981-02-03 Mitsui Petrochem Ind Ltd Production of ethylene polymer composition
JPS56136806A (en) * 1980-03-29 1981-10-26 Mitsui Petrochem Ind Ltd Storage of solid titanium catalyst component containing highly active magnesium
JPS56139520A (en) * 1980-04-02 1981-10-31 Mitsui Petrochem Ind Ltd Preparation of block copolymer
DE3015702A1 (de) * 1980-04-24 1981-10-29 Basf Ag, 6700 Ludwigshafen Verfahren zum herstellen von homo-und copolymerisaten von (alpha) -monoolefinen mittels eines ziegler-katalysatorsystems
US4491652A (en) * 1981-05-13 1985-01-01 Uniroyal, Inc. Sequentially prepared thermoplastic elastomer and method of preparing same
US4384983A (en) * 1981-05-26 1983-05-24 Standard Oil Company (Indiana) Catalyst and process for production of polyolefins of improved morphology
US4376064A (en) * 1981-05-26 1983-03-08 Standard Oil Co. (Indiana) Catalyst and process for production of polyolefins of improved morphology
JPS5861139A (ja) 1981-10-08 1983-04-12 Nippon Yunikaa Kk 難燃性ポリエチレン系樹脂組成物
IT1212698B (it) * 1983-02-10 1989-11-30 Sir Soc Italiana Resine Spa In sospensione di etilene con procedimento di copolimerizzazione alfa-olefine lineari perl'ottenimento di copolimeri a bassa densita'.
JPH01308410A (ja) * 1984-04-09 1989-12-13 Northern Petro Chem Co エチレンの共重合
CA1256246A (en) * 1984-04-09 1989-06-20 Thomas J. Pullukat Copolymerization of ethylene
US4754007A (en) * 1985-03-08 1988-06-28 Enron Chemical Company Copolymerization of ethylene
US5654248A (en) * 1986-08-26 1997-08-05 Mitsui Petrochemical Industries, Ltd. Catalyst for polymerizing alpha-olefins and process for polymerization
KR920001353B1 (ko) * 1986-08-26 1992-02-11 미쓰이 세끼유 가가꾸 고오교오 가부시끼가이샤 α-올레핀의 중합용 촉매 및 중합법
US6716936B1 (en) 2002-12-16 2004-04-06 Equistar Chemicals L.P. Cascaded boiling pool slurry reactors for producing bimodal low to medium density polyethylene polymers
ES2309445T3 (es) 2004-12-17 2008-12-16 Borealis Technology Oy Proceso para la polimerizacion de olefinas en presencia de un catalizador de polimerizacion de las mismas.
CN100417671C (zh) * 2005-03-16 2008-09-10 中国石油化工股份有限公司 用于烯烃聚合的催化剂组分及其催化剂
US8470939B2 (en) * 2007-06-01 2013-06-25 Equistar Chemicals, Lp Preparation of polyethylene
EP2330135B1 (en) 2009-12-02 2012-11-07 Borealis AG Process for producing polyolefins
EP2740748B1 (en) 2012-12-07 2015-06-10 Borealis AG Method of polymerizing olefins in slurry reactors
EP3241611B1 (en) 2016-05-02 2020-03-04 Borealis AG A process for feeding a polymerisation catalyst
EP3483189A1 (en) 2017-11-14 2019-05-15 Borealis AG Automated method for terminating an olefin polymerization reaction under emergency conditions
CN111087501B (zh) * 2018-10-23 2022-12-13 中国石油化工股份有限公司 1-丁烯聚合物及1-丁烯连续淤浆聚合方法
CN111087503B (zh) * 2018-10-23 2023-03-14 中国石油化工股份有限公司 1-丁烯聚合物及1-丁烯淤浆聚合方法
CN116507404A (zh) 2020-11-27 2023-07-28 北欧化工股份公司 催化剂进料系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067183A (en) * 1956-10-15 1962-12-04 Eastman Kodak Co Polymerization of olefins with a catalyst slurry preactivated with ethylene
DE1495629A1 (de) * 1960-06-03 1970-01-22 Hoechst Ag Verfahren zur Herstellung von hochmolekularen Olefinpolymerisaten mit hohem Pulverschuettgewicht
BE637093A (it) * 1962-09-10
US3499060A (en) * 1965-01-29 1970-03-03 Kanegafuchi Chemical Ind Method of manufacturing block copolymers
GB1300734A (en) * 1968-10-24 1972-12-20 Shell Int Research Improvements in or relating to the catalytic polymerisation of olefins
GB1281932A (en) * 1968-11-01 1972-07-19 Exxon Research Engineering Co Process for improving polymerisation of ethylene
US3893989A (en) * 1970-07-08 1975-07-08 Montedison Spa Process for polymerizing propylene
NL7107362A (it) * 1971-05-28 1972-11-30
JPS5210916B1 (it) * 1971-07-22 1977-03-26
US3780136A (en) * 1971-12-10 1973-12-18 Standard Oil Co Process to reduce the amount of low-molecular-weight and amorphous polymers formed during the preparation of olefin copolymers
GB1492174A (en) * 1973-12-13 1977-11-16 British Petroleum Co Polymerisation catalyst
JPS5213827B2 (it) * 1974-05-08 1977-04-16

Also Published As

Publication number Publication date
DE2714742A1 (de) 1977-11-03
FR2348231B1 (it) 1983-06-17
DE2714742C2 (de) 1986-10-09
FR2348231A1 (fr) 1977-11-10
NL7703556A (nl) 1977-10-17
JPS6025444B2 (ja) 1985-06-18
CA1081899A (en) 1980-07-15
JPS52124089A (en) 1977-10-18
GB1532332A (en) 1978-11-15
US4190614A (en) 1980-02-26

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