SE438681B - PROCEDURE FOR PREPARING ALFA-OLEPHINE POLYMERS WITH IMPROVED STEREOR REGULARITY AND SCREEN DENSITY THROUGH 2-STEP POLYMERISATION - Google Patents

PROCEDURE FOR PREPARING ALFA-OLEPHINE POLYMERS WITH IMPROVED STEREOR REGULARITY AND SCREEN DENSITY THROUGH 2-STEP POLYMERISATION

Info

Publication number
SE438681B
SE438681B SE7709634A SE7709634A SE438681B SE 438681 B SE438681 B SE 438681B SE 7709634 A SE7709634 A SE 7709634A SE 7709634 A SE7709634 A SE 7709634A SE 438681 B SE438681 B SE 438681B
Authority
SE
Sweden
Prior art keywords
stereor
regularity
procedure
improved
screen density
Prior art date
Application number
SE7709634A
Other languages
Swedish (sv)
Other versions
SE7709634L (en
Inventor
S Arita
Y Soma
Original Assignee
Mitsui Petrochemical Ind
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 Petrochemical Ind filed Critical Mitsui Petrochemical Ind
Publication of SE7709634L publication Critical patent/SE7709634L/en
Publication of SE438681B publication Critical patent/SE438681B/en

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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
SE7709634A 1976-09-02 1977-08-26 PROCEDURE FOR PREPARING ALFA-OLEPHINE POLYMERS WITH IMPROVED STEREOR REGULARITY AND SCREEN DENSITY THROUGH 2-STEP POLYMERISATION SE438681B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10431276A JPS5330681A (en) 1976-09-02 1976-09-02 Preparation of polyalpha-olefin

Publications (2)

Publication Number Publication Date
SE7709634L SE7709634L (en) 1978-03-03
SE438681B true SE438681B (en) 1985-04-29

Family

ID=14377399

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7709634A SE438681B (en) 1976-09-02 1977-08-26 PROCEDURE FOR PREPARING ALFA-OLEPHINE POLYMERS WITH IMPROVED STEREOR REGULARITY AND SCREEN DENSITY THROUGH 2-STEP POLYMERISATION

Country Status (16)

Country Link
JP (1) JPS5330681A (en)
AT (1) AT350259B (en)
AU (1) AU507025B2 (en)
BE (1) BE858364A (en)
BR (1) BR7705864A (en)
CA (1) CA1085996A (en)
DE (1) DE2739608A1 (en)
ES (1) ES462046A1 (en)
FR (1) FR2363583A1 (en)
GB (1) GB1580635A (en)
IT (1) IT1085034B (en)
NL (1) NL162925C (en)
NO (1) NO151661C (en)
PT (1) PT66971B (en)
SE (1) SE438681B (en)
ZA (1) ZA775201B (en)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118488A (en) * 1977-03-25 1978-10-16 Nippon Oil Co Ltd Production of polyolefin
JPS53124592A (en) * 1977-04-07 1978-10-31 Nippon Oil Co Ltd Preparation of polyolefin
FR2424760A1 (en) * 1978-05-05 1979-11-30 Charbonnages Ste Chimique CATALYSTS INCLUDING MAGNESIUM AND A TRANSITION METAL
JPS5534238A (en) * 1978-08-31 1980-03-10 Chisso Corp Preparation of alpha-olefin polymer
JPS588686B2 (en) * 1978-12-01 1983-02-17 チッソ株式会社 Method for producing α↓-olefin polymer
JPS603324B2 (en) * 1978-12-28 1985-01-28 三井化学株式会社 Method for producing ethylene copolymer
JPS55123607A (en) * 1979-03-14 1980-09-24 Mitsui Petrochem Ind Ltd Preparation of poly-1-butene
NL7902534A (en) * 1979-04-01 1980-10-03 Stamicarbon PROCESS FOR POLYMERIZING OLEFINS-1.
JPS55135105A (en) * 1979-04-10 1980-10-21 Mitsui Petrochem Ind Ltd Titanium catalyst component for olefin polymerization
CA1128916A (en) * 1979-06-12 1982-08-03 Ronald L. Gibbs Magnesium containing support, catalyst and process for polymerizing olefins
JPS5634709A (en) * 1979-08-31 1981-04-07 Mitsui Petrochem Ind Ltd Gas phase polymerization or copolymerization of olefin
JPS5641207A (en) * 1979-09-14 1981-04-17 Idemitsu Kosan Co Ltd Preparation of polyethylene
ATE7922T1 (en) * 1979-10-12 1984-06-15 Bp Chemicals Limited POLYMERIZATION CATALYST AND PROCESS.
JPS56129206A (en) * 1980-03-14 1981-10-09 Chisso Corp Production of alpha-olefin polymer
JPS56133303A (en) * 1980-03-22 1981-10-19 Chisso Corp Production of alpha-olefin polymer
JPS5774307A (en) * 1980-10-29 1982-05-10 Mitsui Petrochem Ind Ltd Polymerizing of alpha-olefin
JPS57153005A (en) * 1981-03-19 1982-09-21 Ube Ind Ltd Polymerization of alpha-olefin
US4491652A (en) * 1981-05-13 1985-01-01 Uniroyal, Inc. Sequentially prepared thermoplastic elastomer and method of preparing same
JPS58120610A (en) * 1982-01-12 1983-07-18 Mitsui Toatsu Chem Inc Preparation of polypropylene having improved transparency
FR2529207A1 (en) * 1982-06-24 1983-12-30 Bp Chimie Sa PROCESS FOR THE PREPARATION OF CATALYST SUPPORTS FOR THE POLYMERIZATION OF ALPHA-OLEFINS AND SUPPORTS OBTAINED
FR2529209A1 (en) * 1982-06-24 1983-12-30 Bp Chimie Sa CATALYSTS FOR THE POLYMERIZATION AND COPOLYMERIZATION OF PROPYLENE AND POLYMERIZATION METHODS USING THESE CATALYSTS
FR2529206A1 (en) * 1982-06-24 1983-12-30 Bp Chimie Sa PROCESS FOR THE PREPARATION OF MAGNESIUM CHLORIDE SUPPORTS FOR THE PREPARATION OF ALPHA-OLEFIN POLYMERIZATION CATALYSTS AND SUPPORTS OBTAINED
EP0099772B2 (en) * 1982-06-24 1991-11-13 BP Chimie Société Anonyme Catalysts for the polymerization and copolymerization of ethylene, and polymerization processes using such catalysts
JPS59122506A (en) * 1982-12-28 1984-07-16 Sumitomo Chem Co Ltd Flexible propylene polymer
JPS59206407A (en) * 1983-05-11 1984-11-22 Mitsui Petrochem Ind Ltd Polymerization of olefin
JPS59206418A (en) * 1983-05-11 1984-11-22 Mitsui Petrochem Ind Ltd Production of 4-methyl-1-pentene polymer
JPS59206424A (en) * 1983-05-11 1984-11-22 Mitsui Petrochem Ind Ltd Production of propylene copolymer composition
JPS60118703A (en) * 1983-11-30 1985-06-26 Mitsui Toatsu Chem Inc Polymerization of propylene
JPS60156704A (en) * 1984-01-25 1985-08-16 Idemitsu Petrochem Co Ltd Process for continuous polymerization of alpha-olefin
JPS6152118A (en) * 1984-08-21 1986-03-14 三菱電機株式会社 Power source
JPS61151208A (en) * 1984-12-26 1986-07-09 Toa Nenryo Kogyo Kk Polymerization of butene-1
EP0588277B1 (en) * 1987-02-02 2001-05-16 Fina Technology, Inc. Process for increasing the efficiency of a pre-polymerized catalyst
US4767735A (en) * 1987-02-02 1988-08-30 Cosden Technology, Inc. Catalyst pretreatment process
JPH0784488B2 (en) * 1987-03-23 1995-09-13 出光石油化学株式会社 Method for producing olefin polymer
JPH0822888B2 (en) * 1987-03-23 1996-03-06 出光石油化学株式会社 Method for producing olefin polymer
TW248565B (en) 1991-08-14 1995-06-01 Mitsui Petroleum Chemicals Industry Co
ATE529450T1 (en) 2009-02-25 2011-11-15 Borealis Ag MULTIMODAL PROPYLENE POLYMER, COMPOSITION THEREOF AND METHOD FOR PRODUCING THEREOF
EP2452959B1 (en) 2010-11-12 2015-01-21 Borealis AG Process for producing propylene random copolymers and their use
EP2452957A1 (en) 2010-11-12 2012-05-16 Borealis AG Improved process for producing heterophasic propylene copolymers
EP2452960B1 (en) 2010-11-12 2015-01-07 Borealis AG Process for preparing propylene polymers with an ultra high melt flow rate
ES2462166T3 (en) 2011-12-19 2014-05-22 Borealis Ag Loop reactor that provides advanced control of production division
EP2719725B1 (en) 2012-10-11 2018-12-05 Abu Dhabi Polymers Company Limited (Borouge) Nucleated polypropylene composition for containers
EP2749580B1 (en) 2012-12-28 2016-09-14 Borealis AG Process for producing copolymers of propylene
EP2796473B1 (en) 2013-04-22 2017-05-31 Borealis AG Multistage process for producing low-temperature resistant polypropylene compositions
PL2796498T3 (en) 2013-04-22 2019-03-29 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
TR201808436T4 (en) 2013-04-22 2018-07-23 Abu Dhabi Polymers Co Ltd Borouge Polypropylene composition with improved impact strength for pipe applications.
EP2796501B9 (en) 2013-04-22 2019-05-01 Abu Dhabi Polymers Company Limited (Borouge) Multimodal polypropylene composition for pipe applications
EP2796472B1 (en) 2013-04-22 2017-06-28 Borealis AG Two-stage process for producing polypropylene compositions
EP2796502A1 (en) 2013-04-22 2014-10-29 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
PL2796500T3 (en) 2013-04-22 2018-12-31 Abu Dhabi Polymers Company Limited (Borouge) Propylene random copolymer composition for pipe applications
EP3235832B1 (en) 2013-04-22 2018-06-20 Borealis AG Polypropylene compositions
EP2853562A1 (en) 2013-09-27 2015-04-01 Borealis AG Two-stage process for producing polypropylene compositions
EP2913346B1 (en) 2014-02-28 2016-11-02 Borealis AG Process for polymerizing olefins in a fluidized bed
EP2913345B1 (en) 2014-02-28 2016-11-02 Borealis AG Gas phase polymerization process
ES2673428T3 (en) 2015-06-12 2018-06-21 Borealis Ag Procedure and apparatus for the polymerization of olefins in the gas phase
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
EP3418308B1 (en) 2017-06-20 2020-03-11 Borealis AG A method, an arrangement and use of an arrangement for olefin polymerisation
EP3418309A1 (en) 2017-06-20 2018-12-26 Borealis AG A method, an arrangement and use of an arrangement of preparing polymer
EP3418310B1 (en) 2017-06-23 2020-04-08 Borealis AG Process and apparatus for removing polymer material from a gas-solids olefin polymerization reactor
CN109135067A (en) 2017-06-27 2019-01-04 阿布扎比聚合物有限责任公司(博禄) For manufacturing the polypropene composition of high-voltage tube
ES2806646T3 (en) 2017-11-17 2021-02-18 Borealis Ag Procedure to improve the cooling capacity of a gas-solid olefin polymerization reactor
ES2795985T3 (en) 2017-11-17 2020-11-25 Borealis Ag Return fluidizing gas splitting procedure in a solid gas olefin polymerization reactor
EP3567061B1 (en) 2018-05-09 2023-10-04 Borealis AG Polypropylene pipe composition
CA3095977C (en) 2018-06-14 2023-07-04 Borealis Ag Process for polymerizing olefin in a gas phase reactor with improved thermal homogeneity
CN112424235B (en) 2018-08-02 2023-04-21 北欧化工公司 Method for polymerizing ethylene in a multistage polymerization process
EP3980177A1 (en) 2019-06-04 2022-04-13 Borealis AG Process and reactor assembly for the enhancement of hydrodynamics in a gas-solids fluidized bed reactor
EP3868793A1 (en) 2020-02-24 2021-08-25 Borealis AG Process for producing alpha-olefin polymers in a multistage polymerization process
EP4257640B1 (en) 2022-04-04 2024-08-28 Borealis AG Pipe comprising a polypropylene composition
EP4389820A1 (en) 2022-12-21 2024-06-26 Borealis AG Polypropylene random copolymer compositions with improved impact resistance for pipe applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430016B1 (en) * 1970-07-08 1979-09-27
JPS5152487A (en) * 1974-11-01 1976-05-10 Mitsui Toatsu Chemicals ECHIRENKYOOJUGOTAINO SEIZOHOHO

Also Published As

Publication number Publication date
IT1085034B (en) 1985-05-28
ES462046A1 (en) 1978-06-01
FR2363583A1 (en) 1978-03-31
BE858364A (en) 1978-03-02
ATA626277A (en) 1978-10-15
NO151661C (en) 1985-05-15
CA1085996A (en) 1980-09-16
AU2841977A (en) 1979-03-08
DE2739608C2 (en) 1987-08-27
GB1580635A (en) 1980-12-03
JPS5330681A (en) 1978-03-23
AU507025B2 (en) 1980-01-31
PT66971B (en) 1979-02-13
NL7709699A (en) 1978-03-06
NL162925B (en) 1980-02-15
ZA775201B (en) 1978-07-26
FR2363583B1 (en) 1979-03-23
NO151661B (en) 1985-02-04
DE2739608A1 (en) 1978-03-09
SE7709634L (en) 1978-03-03
PT66971A (en) 1977-09-01
JPS5745244B2 (en) 1982-09-27
NL162925C (en) 1983-03-16
AT350259B (en) 1979-05-25
BR7705864A (en) 1978-06-27
NO773035L (en) 1978-03-03

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