FI89929C - Foerfarande foer homo- eller sampolymerisering av eten - Google Patents
Foerfarande foer homo- eller sampolymerisering av eten Download PDFInfo
- Publication number
- FI89929C FI89929C FI906427A FI906427A FI89929C FI 89929 C FI89929 C FI 89929C FI 906427 A FI906427 A FI 906427A FI 906427 A FI906427 A FI 906427A FI 89929 C FI89929 C FI 89929C
- Authority
- FI
- Finland
- Prior art keywords
- ethylene
- propane
- hydrogen
- polymerization
- pressure
- Prior art date
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims description 22
- 239000005977 Ethylene Substances 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 22
- 238000007334 copolymerization reaction Methods 0.000 title description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 50
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 27
- 239000001294 propane Substances 0.000 claims description 25
- 238000006116 polymerization reaction Methods 0.000 claims description 19
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- -1 Polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000011954 Ziegler–Natta catalyst Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 12
- 239000012429 reaction media Substances 0.000 description 11
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000001282 iso-butane Substances 0.000 description 4
- 235000013847 iso-butane Nutrition 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
-
- 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
- Y10S526/905—Polymerization in presence of transition metal containing catalyst in presence of hydrogen
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)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polymerisation Methods In General (AREA)
Description
ii 9 9 29
Menetelmä eteenin homo- tai kopolymeroimiseksi Förfarande för homo- eller sampolymerisering av eten 5
Keksintö koskee menetelmää eteenin homo- tai kopolymeroimiseksi kiinteiden polymee-ripartikkeleiden muodossa.
Eteenin polymerointi kiinteiden partikkelien muodossa nestefaasissa on tunneUua. 10 Tälläisissä prosesseissa polymerointi suoritetaan tyypillisesti reaktiovällaineessa tai laimentimessa, jonka muodostaa isobutaani, pentaani, heksaani tai muu tyydytetty alifaattinen hiilivety. Polymerointi suoritetaan usein Ziegler-Natta-katalyytin läsnäollessa korotetussa lämpötilassa. Monomeerien lisäksi polymeroinnissa käytetään usein modifiointiaineena vetyä, jolla voidaan vaikuttaa syntyvän polymeerin molekyylipainoon 15 ja muihin ominaisuuksiin.
Tunnetaan myös prosesseja, joissa reaktioväliaineena käytetään nestemäistä propaania. Esimerkiksi US-patentissa 4 754 007 on esitetty prosessi partikkelimuodossa olevan eteenikopolymeerin valmistamiseksi käyttäen nestefaasina nestemäistä propaania. Tällä 20 tavalla esitetään vältettävän eräitä edellämainittujen hiilivetyjen käyttöön liittyviä ongelmia. Näitä haittoja ovat mm. se, että käyttökelpoinen lämpötila on rajoitettu, koska korkeissa lämpötiloissa polyeteeniä liukenee reaktioväliaineeseen. Tästä johtuen komonomeerien ja reaktioväliaineen erottaminen toisistaan on vaikeaa. Lisäksi syntyvillä kopolymeereillä on suhteellisen leveä molekyylipainojakautuma.
25 US-patentin 4 754 007 mukaan reaktioväliaineena käytetään nestemäistä propaania. Tällä tavalla saavutettavia etuja ovat propaanin halpuuden lisäksi se, että propaanilla on alhaisempi höyrystymislämpö ja se on helpommin haihtuvaa kuin esimerkiksi isobutaani. Siten propaanin käyttö mahdollistaa tehokkaamman reaktioväliaineen 30 erottamisen polymeeristä. Lisäksi propaanin käyttö edesauttaa reaktorin pysymistä puhtaana polymeroitaessa eteeniä partikkelimuodossa.
2 . r> r~\ 1 y y t 9 US-patentissa todetaan erityisesti se, että polymerointi tulisi suorittaa propaanin kriittisen lämpötilan alapuolella, joka on 96,8 °C. Prosessi suoritetaan patentin mukaan panosreak-torissa, jossa nestefaasin yläpuolella on huomattava kaasutilavuus. Jos halutaan käyttää jatkuvatoimista loop-reaktoria, niin tilanne on tällöin kokonaan erilainen. Reaktorin on 5 tällöin oltava kokonaan nestefaasin täyttämä, koska reaktioväliaineessa olevat kaasukuplat aiheuttaisivat kavitointia ja siten kulumista reaktioväliaineen kierrätyspunipuissa. Tilanne pahenee, jos loop-reaktorissa halutaan valmistaa korkeamman sulaindek-sin omaavaa tuotetta lisäämällä reaktioväliaineeseen vetyä. Kriittisen pisteen alapuolella toimittaessa, kuten US-patentissa 4 754 007, tapahtuu faasien erottumista vedyn kupliessa 10 sekä paineiskuja, joten prosessi ei ole sovellettavissa loop-reaktoriin.
Voidaan osoittaa, että loop-reaktori n reaktioseoksen sisältäessä propaania 93 mol-% ja eteeniä 7 mol-%, seoksen kriittinen piste on Tc=92,9 °C, Pc=44,l bar. Jos reaktioväliaineessa on eteeniä 7 mol-% ja vetyä 2 mol-% (loput propaania), on reaktorin maksimi 15 operoitavissa oleva lämpötila 75 °C, mikä on aivan liian alhainen lämpötila polymeroin-nin kannalta. Seoksella, jossa on eteeniä 7 mol-% ja vetyä 2,5 mol-% (loput propaania) on maksimi operoitavissa oleva lämpötila enää vain 60 °C. Siten on selvää, että mainitun US-patentin mukainen prosessi ei ole toteutettavissa loop-reaktorissa.
20 Keksinnön mukaisesti on kuitenkin havaittu, että loop-reaktoria voidaan käyttää, jos polymerointi suoritetaan kriittisen pisteen yläpuolella. Tarkemmin sanottuna kysymyksessä on sen fluidiseoksen kriittinen piste, jonka muodostavat monomeerinä toimiva eteeni (+ mahdolliset komoneerit), propaani ja mahdollisesti modifiointiaineena toimiva vety. Eteeni ja vety laskevat mainittua kriittistä pistettä jonkin verran ja kriittinen piste on 25 kokeellisesti määritettävissä, kun tiedetään reaktioväliaineessa olevien komponenttien konsentraatiot.
Siten keksintö koskee menetelmää eteenin homo- tai kopolymeroimiseksi Ziegler-Natta-katalyytin ja mahdollisen komonomeerin ja vedyn läsnäollessa propaanissa partikkeli-30 muodossa olevan eteenin homo- tai kopolymeerin valmistamiseksi loop-reaktorissa. Keksinnön mukainen menetelmä on tunnettu siitä, että polymerointi suoritetaan loop-
II
j v v 2 > 3 reaktorissa sellaisissa olosuhteissa, joissa lämpötila on suurempi kuin eteenin, propaanin ja mahdollisen vedyn ja komonomeerin muodostaman fluidiseoksen kriittinen lämpötila, mutta alempi kuin polymeroinnissa muodostuvan eteenipolymeerin sulamislämpötila, ja paine on korkeampi kuin ko. seoksen kriittinen paine.
5
Ylikriittisessä tilassa olevan propaanifaasin käyttämisestä seuraa lukuisia tärkeitä etuja: 1) Reaktorin vetypitoisuutta voidaan säätää laajalla alueella, koska operointi tapahtuu kriittisen pisteen yläpuolella. Tällöin ei voida enää puhua neste- ja kaasufaaseista, vaan 10 kysymyksessä on yksi faasi. Faasien erottumista ei siten pääse tapahtumaan ennen kuin vetykonsentraatio kasvaa erittäin korkeaksi. Siitä johtuen reaktorissa voidaan valmistaa useamman laatuisia polymeerejä kuin esimerkiksi iso-butaania käytettäessä tai käytettäessä propaania kriittisen pisteen alapuolella toimittaessa. Vetyä voidaan lisätä riittävästi, koska vedyn tai kaasujen erottumista (kuplimista) ei tapahdu tarvittavilla 15 vetykonsentraatioilla.
2) Koska reaktoria operoidaan ylikriittissä olosuhteissa, reaktiofluidin kompressibilitcetti on hyvä ja reaktorin käynnistys ja operointi (paineen säätö) helpottuu, sillä paineisku-vaikutuksia ei esiinny. Tuotteen ulosotossa esiintyy aina nestetilavuuden muutoksia, 20 minkä seurauksena tapahtuu kuplimista. Toimittaessa ylikriittisessä tilassa kuplimisil-miötä ei esiinny.
3) Polyeteenin liukoisuus on huonompi propaaniin kuin isobutaaniin, jolloin erityisesti korkean sulaindeksin, kuten esim. 50-500, omaavat polymeeripartikkelit eivät liukene 25 väliaineeseen ja reaktori likaantuu vähemmän.
4) Koska propaanin kiehumispiste on alhainen, voidaan hiilivedyt erottaa polymeroinnin jälkeen polymeeripartikkeleista tehokkaammin.
4 • 5 9 9 2 9
Keksinnön mukainen menetelmä soveltuu eteenin homo- tai kopolymeroi mi seksi. Sopivia komonomeereja ovat mm. propeeni, 1-buteeni, 1-penteeni, 1-hekseeni, 4-metyyli-l-penteeni, 1-okteeni, 1-dekeeni, 1-dodekeeni ja 1-oktadekeeni.
5 Vedyn käyttö modifiointiaineena soveltuu erityisen hyvin keksinnön mukaiseen menetelmään käytettäessä Ziegler-Natta-tyyppisiä katalyyttejä ja haluttaessa korkeamman sulaindeksin omaavia polymeerejä. Vetyä voidaan edellämainituista syistä johtuen lisätä aina riittävä määrä.
10 Polymerointi suoritetaan siis olosuhteissa, joissa lämpötila on korkeampi kuin propaanin, eteenin ja mahdollisen komonomeerin sekä vedyn muodostaman seoksen kriitittinen piste ja alhaisempi kuin syntyvän eteenipolymeerin sulamispiste, ja paine on korkeampi kuin reaktioseoksen kriittinen paine. Tällöin muodostuva polymeeri on erillisinä hiukkasina, joilla on oleellisesti tasainen koko ja muoto.
15
Siten keksinnön mukainen polymerointi suoritetaan edullisesti lämpötila-alueella 90-110°C. Koska ylikriittisessä tilassa olevan fluidin tiheys on voimakkaasti riippuvainen paineesta kriitisen pisteen läheisyydessä, tulee operointipaine valita niin korkeaksi, että paineen vaikutus tiheyteen on vähäisempi. Riittävä painealue riippuu käytetystä 20 vetykonsentraatiosta, mutta yleensä sopiva paine polymerointireaktorissa on välillä 60-80 bar. Vetyä voidaan reaktorin operoitavuuden kärsimättä lisätä aina 4 mol %-iin asti. Yleisesti polymerointireaktio suoritetaan propaanissa, johon lisätään monomeerinä toimiva eteeni, mahdolliset komonomeerit sekä vety ja katalyytti. Polymeeriä poistetaan jaksottain reaktorista, polymeeri erotetaan propaanista ja monomeereistä tavanomaisella 25 tavalla. Edullisesti polymeeri erotetaan muista aineista flash-tekniikalla alentamalla painetta.
Polymerointikatalyyttinä voidaan käyttää mitä tahansa eteenin polymeroinnissa tavanomaisesti käytettäviä katalyyttejä. Ziegler-katalyytit ovat erittäin sopivia 30 käytettäviksi keksinön mukaisessa menetelmässä. Ne ovat katalyyttejä jotka sisältävät siirtymämetallikomponentteja Alkuaineiden jaksollisen jäijestelmän ryhmien IV, V ja
II
5 j ) 'y 2? VI metalleista. Titaania sisältävät katalyytit ovat erityisen sopivia ja keksinnön mukaisessa menetelmässä käytettävät katalyytit voivat sisältää myös kantajan, joka voi olla esimerkiksi silika, alumina ja silika-alumina.
5 Ziegler-katalyyttien lisäksi keksinnön mukaisessa menetelmässä voidaan käyttää edullisesti muita katalyyttityyppejä, kuten esimerkiksi kromikatalyyttejä. Katalyytin valinta riippuu oleellisesti siitä, minkä tyyppistä polyeteeniä on tarkoitus valmistaa.
Keksinnön mukainen menetelmä ei ole rajoitettu pelkästään yhteen loop-reaktori in. On 10 mahdollista ja joissakin tapauksissa jopa edullista käyttää sarjassa kahta loop-reaktoria, jolloin molemmissa reaktoreissa tai kummassa reaktorissa tahansa voidaan käyttää hyvin korkeita vetykonsentraatioita ja näinollen voidaan valmistaa leveän tai bimodaalisen molekyylipainojakautuman omaavia eteenipolymeerejä ja/tai kopolymeerejä.
15 Keksinnön selittämiseksi viitataan edelleen seuraaviin esimerkkeihin 1-3, joissa polymerointi suoritettiin pilot-mittakaavaisessa loop-reaktorissa, jossa reaktorin läpimitta oli 0,25 m ja pituus 12 m. Katalyyttinä esimerkeissä käytettiin silikakantajalla olevaa Ziegler-Natta tyyppistä katalyyttiä, jossa Ti-pitoisuus oli 4,30 p-%, Mg-pitoisuus 2,80 p-% ja Al-pitoisuus 1,20 p-%.
20
Loop-reaktorin ajo-olosuhteet ja tuotteen ominaisuudet on esitetty jäljempänä olevassa taulukossa.
6 ·, /*· ' r- y / β
Taulukko 1
Aio-olosuhteet Esimerkki 1 Esimerkki 2 Esimerkki 3
5 Lämpötila (°C) 98 °C 98 °C 98 °C
Paine (bar) 65 bar 65 bar 65 bar
Katalyytin syöttönopeus (g/h) 11 11 11
Propaanin syöttönopeus (kg/h) 32 30 30
Eteenin syöttönopeus (kg/h) 21 22 25 10 Eteenikonsentraatio (mol-%) 6,5 6,4 6,4
Vedyn syöttönopeus (g/h) 43 47 57
Vetykonsentraatio (mol-%) 1,44 1,48 1,67
Polymeerin tuotantonopeus (kg/h) 20 20 20
Tuoteominaisuudet 15 Tiheys (kg/m3) 980,6 982,0 983,0
Sulaindeksi MI2 (g/10 min) 67,0 86,0 104,0
Keskim. partikkelikoko (mm) 0,27 0,27 0,27
Bulkkitiheys (kg/m3) 425 422 420 20
Suoritettaessa esimerkkien mukaiset koeajot todettiin, että reaktorin operoitavuus oli erinomainen huolimatta siitä, että vetypitoisuutta nostettiin sulaindeksin korottamiseksi.
Claims (5)
1. Menetelmä eteenin homo- tai kopolymeroimiseksi Ziegler-Natta-katalyytin ja mahdollisen komonomeerin ja vedyn läsnäollessa propaanissa partikkelimuodossa olevan 5 eteenin homo- tai kopolymeerin valmistamiseksi loop-reaktorissa, tunnettu siitä, että polymerointi suoritetaan loop-reaktorissa sellaisissa olosuhteissa, joissa lämpötila on suurempi kuin eteenin, propaanin ja mahdollisen vedyn ja komonomeerin muodostaman seoksen kriittinen lämpötila, mutta alempi kuin polymeroinnissa muodostuvan eteenipolymeerin sulamislämpötila, ja paine on korkeampi kuin ko. seoksen kriittinen 10 paine.
2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että polymeroin-tilämpötila on välillä 95-110 °C ja paine välillä 60-80 bar.
3. Patenttivaatimuksen 1 tai 2 mukainen menetelmä, tunnettu siitä, että vetypi- toisuus propaanissa on välillä 0-4 mol-%.
4. Jonkin edellisen patenttivaatimuksen mukainen menetelmä, tunnettu siitä, että polymerointi suoritetaan kahdessa tai useammassa Saijaan kytketyssä loop-reaktorissa. 20
5. Jonkin edellisen patenttivaatimuksen mukaisella menetelmällä saatu polyeteeni, tunnettu siitä, että polyeteenillä on korkea sulaindeksi, kuten esim. 50-500. I ') f) r\ J ‘ s *+. s
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI906427A FI89929C (fi) | 1990-12-28 | 1990-12-28 | Foerfarande foer homo- eller sampolymerisering av eten |
| EP92900835A EP0564488B1 (en) | 1990-12-28 | 1991-12-18 | A method for homo- or copolymerizing ethene |
| US08/066,004 US5391654A (en) | 1990-12-28 | 1991-12-18 | Method for homo- or copolymerizing ethene |
| JP4502099A JP2707366B2 (ja) | 1990-12-28 | 1991-12-18 | エテンのホモ重合または共重合方法 |
| PCT/FI1991/000397 WO1992012181A1 (en) | 1990-12-28 | 1991-12-18 | A method for homo- or copolymerizing ethene |
| DE69125025T DE69125025T2 (de) | 1990-12-28 | 1991-12-18 | Verfahren zur homo- oder copolymerisation von ethen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI906427 | 1990-12-28 | ||
| FI906427A FI89929C (fi) | 1990-12-28 | 1990-12-28 | Foerfarande foer homo- eller sampolymerisering av eten |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI906427A0 FI906427A0 (fi) | 1990-12-28 |
| FI906427L FI906427L (fi) | 1992-06-29 |
| FI89929B FI89929B (fi) | 1993-08-31 |
| FI89929C true FI89929C (fi) | 1993-12-10 |
Family
ID=8531653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI906427A FI89929C (fi) | 1990-12-28 | 1990-12-28 | Foerfarande foer homo- eller sampolymerisering av eten |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5391654A (fi) |
| EP (1) | EP0564488B1 (fi) |
| JP (1) | JP2707366B2 (fi) |
| DE (1) | DE69125025T2 (fi) |
| FI (1) | FI89929C (fi) |
| WO (1) | WO1992012181A1 (fi) |
Families Citing this family (279)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08504883A (ja) * | 1993-10-15 | 1996-05-28 | フイナ・リサーチ・ソシエテ・アノニム | 幅広い分子量分布を示すポリエチレンの製造方法 |
| FI952098A7 (fi) * | 1995-05-02 | 1996-11-03 | Borealis As | LLDPE-polymeerien valmistusmenetelmä |
| US5744556A (en) * | 1995-09-25 | 1998-04-28 | Union Carbide Chemicals & Plastics Technology Corporation | Gas phase polymerization employing unsupported catalysts |
| BR9610966A (pt) * | 1995-10-10 | 1999-03-02 | Borealis As | Processo para a fabricação de homo ou copolímeros de propileno |
| FI105820B (fi) * | 1995-10-10 | 2000-10-13 | Borealis Tech Oy | Prosessi propeenin homo- tai kopolymeerien valmistamiseksi |
| FI111846B (fi) | 1997-06-24 | 2003-09-30 | Borealis Tech Oy | Menetelmä ja laitteisto polypropeeniseosten valmistamiseksi |
| US6214944B1 (en) | 1999-02-02 | 2001-04-10 | Fina Technology, Inc. | Method for pressurizing a propylene polymerization reactor |
| EP1083183A1 (en) * | 1999-09-10 | 2001-03-14 | Fina Research S.A. | Process for producing polyolefins |
| EP1195388A1 (en) * | 2000-10-04 | 2002-04-10 | ATOFINA Research | Process for producing bimodal polyethylene resins |
| US8008412B2 (en) * | 2002-09-20 | 2011-08-30 | Exxonmobil Chemical Patents Inc. | Polymer production at supersolution conditions |
| US20080153997A1 (en) * | 2006-12-20 | 2008-06-26 | Exxonmobil Research And Engineering | Polymer production at supercritical conditions |
| US7354979B2 (en) * | 2002-09-20 | 2008-04-08 | Exxonmobil Chemical Patents Inc. | Polymer production at supercritical conditions |
| DE602005010255D1 (de) * | 2004-07-08 | 2008-11-20 | Exxonmobil Chem Patents Inc | Katalysator system für die olefinpolymerisation und verfahren zu seiner verwendung |
| GB0426058D0 (en) | 2004-11-26 | 2004-12-29 | Solvay | Chemical process |
| GB0426059D0 (en) | 2004-11-26 | 2004-12-29 | Solvay | Chemical process |
| DE602004015128D1 (de) | 2004-12-17 | 2008-08-28 | Borealis Tech Oy | Verfahren zur Polymerisation von Olefinen in Gegenwart eines Olefin Polymerisationskatalysators |
| EP1836232B2 (en) | 2005-01-12 | 2016-08-03 | Borealis Technology Oy | Extrusion coating polyethylene |
| BRPI0712476A2 (pt) | 2006-05-26 | 2011-12-06 | Ineos Mfg Belgium Nv | reator de laço para polimerização |
| US8242237B2 (en) * | 2006-12-20 | 2012-08-14 | Exxonmobil Chemical Patents Inc. | Phase separator and monomer recycle for supercritical polymerization process |
| US8143352B2 (en) * | 2006-12-20 | 2012-03-27 | Exxonmobil Research And Engineering Company | Process for fluid phase in-line blending of polymers |
| US8080610B2 (en) | 2007-03-06 | 2011-12-20 | Exxonmobil Research And Engineering Company | Monomer recycle process for fluid phase in-line blending of polymers |
| JP2010529253A (ja) * | 2007-06-04 | 2010-08-26 | エクソンモービル・ケミカル・パテンツ・インク | 非常に均一なプロピレンの溶液重合法 |
| EP2030993A1 (en) | 2007-09-03 | 2009-03-04 | INEOS Manufacturing Belgium NV | Slurry phase polymerisation process |
| EP2033976A1 (en) | 2007-09-03 | 2009-03-11 | INEOS Manufacturing Belgium NV | Slurry phase polymerisation process |
| WO2009035579A1 (en) * | 2007-09-13 | 2009-03-19 | Exxonmobil Research And Engineering Company | In-line blending of plasticizers with a base polymer |
| CN101855249B (zh) * | 2007-09-13 | 2013-02-13 | 埃克森美孚研究工程公司 | 在线生产增塑聚合物和增塑聚合物共混物的方法 |
| WO2009082463A1 (en) * | 2007-12-20 | 2009-07-02 | Exxonmobil Research And Engineering Company | In-line process to produce pellet-stable polyolefins |
| US7910679B2 (en) * | 2007-12-20 | 2011-03-22 | Exxonmobil Research And Engineering Company | Bulk homogeneous polymerization process for ethylene propylene copolymers |
| EP2072588B1 (en) | 2007-12-20 | 2012-10-10 | Borealis Technology Oy | Process for coating a pipe with high throughput using multimodal ethylene copolymer, and coated pipes obtained thereof |
| PL2072587T3 (pl) | 2007-12-20 | 2020-11-02 | Borealis Technology Oy | Powlekane rury o ulepszonych właściwościach mechanicznych w wysokich temperaturach i sposób ich wytwarzania |
| EP2450403A1 (en) * | 2007-12-20 | 2012-05-09 | ExxonMobil Research and Engineering Company | Polypropylene ethylene-propylene copolymer blends and in-line process to produce them |
| EP2072589A1 (en) | 2007-12-20 | 2009-06-24 | Borealis Technology Oy | Process for coating a pipe with high throughput using multimodal ethylene copolymer, and coated pipes obtained thereof |
| EP2072586B1 (en) | 2007-12-20 | 2020-11-11 | Borealis Technology Oy | Coated pipes having improved mechanical properties and a method of production thereof |
| US8318875B2 (en) * | 2008-01-18 | 2012-11-27 | Exxonmobil Chemical Patents Inc. | Super-solution homogeneous propylene polymerization and polypropylenes made therefrom |
| EP2130862A1 (en) | 2008-06-02 | 2009-12-09 | Borealis AG | Polymer compositions and pressure-resistant pipes made thereof |
| EP2130863A1 (en) | 2008-06-02 | 2009-12-09 | Borealis AG | High density polymer compositions, a method for their preparation and pressure-resistant pipes made therefrom |
| EP2130859A1 (en) | 2008-06-02 | 2009-12-09 | Borealis AG | Polymer compositions having improved homogeneity and odour, a method for making them and pipes made thereof |
| EP2182526A1 (en) | 2008-10-31 | 2010-05-05 | Borealis AG | Cable and polymer composition comprising an multimodal ethylene copolymer |
| EP2182524A1 (en) | 2008-10-31 | 2010-05-05 | Borealis AG | Cable and Polymer composition comprising a multimodal ethylene copolymer |
| EP2182525A1 (en) | 2008-10-31 | 2010-05-05 | Borealis AG | Cable and polymer composition comprising a multimodal ethylene copolymer |
| EP2186833B8 (en) | 2008-11-17 | 2012-08-08 | Borealis AG | Multi-stage process for producing polytheylene with lowered gel formation |
| EP2228394B1 (en) | 2009-02-24 | 2013-09-04 | Borealis AG | Multi-stage process for producing multi-modal linear low density polyethylene |
| EP2228395A1 (en) | 2009-02-24 | 2010-09-15 | Borealis AG | Improved multi-stage process for producing multi-modal ethylene polymer composition |
| EP2223943B1 (en) | 2009-02-25 | 2011-10-19 | Borealis AG | Multimodal polymer of propylene, composition containing the same and a process for manufacturing the same |
| EP2223944A1 (en) | 2009-02-26 | 2010-09-01 | Borealis AG | Process for producing semicrystalline propylene polymers |
| EP2246368A1 (en) | 2009-04-30 | 2010-11-03 | Borealis AG | Improved ethylene polymerization catalyst composition |
| EP2246372A1 (en) | 2009-04-30 | 2010-11-03 | Borealis AG | Improved multi-stage process for producing multi-modal linear low density polyethylene |
| EP2246369B1 (en) | 2009-04-30 | 2012-09-05 | Borealis AG | Linear low density polyethylene with uniform or reversed comonomer composition distribution |
| ES2487517T3 (es) | 2009-05-26 | 2014-08-21 | Borealis Ag | Composición polimérica para artículos reticulados |
| EP2256159A1 (en) | 2009-05-26 | 2010-12-01 | Borealis AG | Polymer composition for crosslinked pipes |
| EP2289950B1 (en) | 2009-08-25 | 2014-03-05 | Borealis AG | Improved ethylene polymerization catalyst composition |
| US8501881B2 (en) | 2009-11-13 | 2013-08-06 | Borealis Ag | Process for olefin polymerization |
| WO2011058089A1 (en) | 2009-11-13 | 2011-05-19 | Borealis Ag | Process for producing a polymerization catalyst |
| EP2322568B1 (en) | 2009-11-13 | 2013-05-15 | Borealis AG | Process for producing an olefin polymerization catalyst |
| WO2011058088A1 (en) | 2009-11-13 | 2011-05-19 | Borealis Ag | Process for recovering a transition metal compound |
| US9358515B2 (en) | 2010-02-03 | 2016-06-07 | Chevron Phillips Chemical Company Lp | Compressible liquid diluent in polyolefin polymerization |
| US8871886B1 (en) | 2013-05-03 | 2014-10-28 | Chevron Phillips Chemical Company Lp | Polymerization product pressures in olefin polymerization |
| EP2548208B1 (en) | 2010-03-17 | 2024-11-06 | Borealis AG | Polymer composition for w&c application with advantageous electrical properties |
| CN102947384B (zh) | 2010-03-17 | 2016-08-10 | 北欧化工股份公司 | 具有优异电特性的适于电线电缆应用的聚和物组合物 |
| EP2374823A1 (en) | 2010-04-07 | 2011-10-12 | Borealis AG | Production of alpha-olefin copolymers in a loop reactor with variable comonomer feed |
| US8344078B2 (en) | 2010-05-21 | 2013-01-01 | Chevron Phillips Chemical Company Lp | Continuous take off technique and pressure control of polymerization reactors |
| ES2624858T3 (es) | 2010-06-17 | 2017-07-17 | Borealis Ag | Sistema de control para un reactor en fase gaseosa, un reactor en fase gaseosa para la producción catalítica de poliolefinas, un método para producciones catalíticas de poliolefinas y un uso del sistema de control |
| EP2399943A1 (en) | 2010-06-28 | 2011-12-28 | Borealis AG | Process for producing polyethylene |
| EP2428526A1 (en) | 2010-09-13 | 2012-03-14 | Borealis AG | Process for producing polyethylene with improved homogeneity |
| EP2452960B1 (en) | 2010-11-12 | 2015-01-07 | Borealis AG | Process for preparing propylene polymers with an ultra high melt flow rate |
| 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 |
| EP2452976A1 (en) | 2010-11-12 | 2012-05-16 | Borealis AG | Heterophasic propylene copolymers with improved stiffness/impact/flowability balance |
| ES2605429T3 (es) | 2011-06-15 | 2017-03-14 | Borealis Ag | Mezcla del reactor in situ de un polipropileno nucleado catalizado por Ziegler-Natta y un polipropileno catalizado por metaloceno |
| EP2570455A1 (en) | 2011-09-16 | 2013-03-20 | Borealis AG | Polyethylene composition with broad molecular weight distribution and improved homogeneity |
| EP2583998B1 (en) | 2011-10-21 | 2018-02-28 | Borealis AG | Polyethylene composition with high rapid crack propagation resistance and pressure resistance |
| EP2599828A1 (en) | 2011-12-01 | 2013-06-05 | Borealis AG | Multimodal polyethylene composition for the production of pipes with improved slow crack growth resistance |
| ES2462166T3 (es) | 2011-12-19 | 2014-05-22 | Borealis Ag | Reactor de bucle que proporciona un avanzado control de la división de la producción |
| EP2617741B1 (en) | 2012-01-18 | 2016-01-13 | Borealis AG | Process for polymerizing olefin polymers in the presence of a catalyst system and a method of controlling the process |
| EP2620472B1 (en) | 2012-01-24 | 2018-05-30 | Borealis AG | Poyethylene composition with improved low temperature perssure resistance |
| EP2719725B1 (en) | 2012-10-11 | 2018-12-05 | Abu Dhabi Polymers Company Limited (Borouge) | Nucleated polypropylene composition for containers |
| EP2722345B1 (en) | 2012-10-18 | 2018-12-05 | Borealis AG | Catalyst for the polymerisation of olefins |
| EP2722346A1 (en) | 2012-10-18 | 2014-04-23 | Borealis AG | Polymerisation process and catalyst |
| US9238698B2 (en) | 2012-10-31 | 2016-01-19 | Chevron Phillips Chemical Company Lp | Pressure management for slurry polymerization |
| ES2613070T3 (es) | 2012-11-09 | 2017-05-22 | Abu Dhabi Polymers Company Limited (Borouge) | Tubería de riego por goteo que comprende una composición polimérica que comprende una resina base de polietileno multimodal |
| ES2604934T3 (es) | 2012-11-09 | 2017-03-10 | Abu Dhabi Polymers Company Limited (Borouge) | Composición polimérica que comprende una mezcla de un polietileno multimodal y un polímero de etileno adicional adecuado para la fabricación de un tubo de riego por goteo |
| EP2740761B1 (en) | 2012-12-05 | 2016-10-19 | Borealis AG | Polyethylene composition with improved balance of slow crack growth resistance, impact performance and pipe pressure resistance for pipe applications |
| EP2740748B1 (en) | 2012-12-07 | 2015-06-10 | Borealis AG | Method of polymerizing olefins in slurry reactors |
| EP2746298A1 (en) | 2012-12-21 | 2014-06-25 | Borealis AG | Environmentally sustainable Ziegler-Natta catalyst |
| EP2746300B1 (en) | 2012-12-21 | 2016-12-07 | Borealis AG | Process for producing a ziegler natta procatalyst for ethylene polymerisation |
| ES2653868T3 (es) | 2012-12-21 | 2018-02-09 | Borealis Ag | Procatalizador de Ziegler Natta soportado para la polimerización de etileno |
| EP2749580B1 (en) | 2012-12-28 | 2016-09-14 | Borealis AG | Process for producing copolymers of propylene |
| EP2796499B1 (en) | 2013-04-22 | 2018-05-30 | Abu Dhabi Polymers Company Limited (Borouge) | Polypropylene composition with improved impact resistance for pipe applications |
| ES2632593T3 (es) | 2013-04-22 | 2017-09-14 | Borealis Ag | Procedimiento de dos fases de producción de composiciones de polipropileno |
| EP2796502A1 (en) | 2013-04-22 | 2014-10-29 | Abu Dhabi Polymers Company Limited (Borouge) | Propylene random copolymer composition for pipe applications |
| ES2628082T3 (es) | 2013-04-22 | 2017-08-01 | Borealis Ag | Procedimiento con múltiples etapas para producir composiciones de polipropileno resistentes a baja temperatura |
| EP2796501B9 (en) | 2013-04-22 | 2019-05-01 | Abu Dhabi Polymers Company Limited (Borouge) | Multimodal polypropylene composition for pipe applications |
| EP2796500B1 (en) | 2013-04-22 | 2018-04-18 | Abu Dhabi Polymers Company Limited (Borouge) | Propylene random copolymer composition for pipe applications |
| PL2796498T3 (pl) | 2013-04-22 | 2019-03-29 | Abu Dhabi Polymers Company Limited (Borouge) | Multimodalna kompozycja polipropylenowa do zastosowania w rurach |
| EP3235832B1 (en) | 2013-04-22 | 2018-06-20 | Borealis AG | Polypropylene compositions |
| EP2799456B1 (en) | 2013-04-30 | 2018-11-21 | Borealis AG | Supported donor modified Ziegler-Natta catalysts |
| 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 |
| EP2860201A1 (en) | 2013-10-10 | 2015-04-15 | Borealis AG | High temperature resistant polyethylene and process for the production thereof |
| EP2860200B1 (en) | 2013-10-10 | 2017-08-02 | Borealis AG | Polyethylene composition for pipe and pipe coating applications |
| EP2860204B1 (en) | 2013-10-10 | 2018-08-01 | Borealis AG | Polyethylene composition for pipe applications |
| EP2860202B1 (en) | 2013-10-10 | 2018-05-30 | Borealis AG | High temperature resistant polyethylene and process for the production thereof |
| KR101787928B1 (ko) | 2013-10-30 | 2017-10-19 | 아부 다비 폴리머스 씨오. 엘티디 (보르쥬) 엘엘씨. | 사출 성형 적용물에 적합한 폴리에틸렌 조성물 |
| 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 |
| ES2660121T3 (es) | 2013-12-20 | 2018-03-20 | Borealis Ag | Composición de polietileno con alta flexibilidad y resistencia a altas temperaturas, adecuada para aplicaciones en tubos |
| EP2894195B1 (en) | 2013-12-23 | 2016-09-14 | Abu Dhabi Polymers Company Limited (Borouge) | Polyethylene composition for pipe applications with improved sagging properties |
| EP2907843B1 (en) | 2014-02-13 | 2017-11-15 | Borealis AG | Blend of bimodal polyethylene with unimodal ultra high molecular weight polyethylene with improved mechanical properties |
| EP2907829B1 (en) | 2014-02-13 | 2020-08-19 | Borealis AG | Disentangled high or ultrahigh molecular weight polyethylene prepared with Ziegler-Natta catalyst |
| 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 |
| EP2995631A1 (en) | 2014-09-12 | 2016-03-16 | Borealis AG | Process for producing graft copolymers on polyolefin backbone |
| CN107075018B (zh) | 2014-09-30 | 2020-08-11 | 博里利斯股份公司 | 用于聚合超高分子量聚乙烯的方法 |
| ES2635519T3 (es) | 2014-11-21 | 2017-10-04 | Borealis Ag | Procedimiento para producir gránulos de copolímeros blandos |
| WO2016083208A1 (en) | 2014-11-26 | 2016-06-02 | Borealis Ag | Polyethylene composition for a film layer |
| TWI600694B (zh) | 2014-11-26 | 2017-10-01 | 柏列利斯股份公司 | 膜層 |
| BR112017005285B1 (pt) | 2014-12-08 | 2021-09-28 | Borealis Ag | Processo para extrudar e peletizar um copolímero de propileno |
| EP3037471B2 (en) | 2014-12-22 | 2025-01-22 | Borealis AG | Process for producing multimodal polyethylene compositions |
| EP3037436B2 (en) | 2014-12-22 | 2020-11-18 | Borealis AG | Process for producing multimodal polyethylene in-situ blends including ultra-high molecular weight fractions |
| EP3253807B1 (en) | 2015-02-05 | 2023-04-26 | Borealis AG | Process for producing polyethylene |
| EP3053936A1 (en) | 2015-02-06 | 2016-08-10 | Borealis AG | Process for producing copolymers of ethylene with alpha-olefins |
| EP3053976A1 (en) | 2015-02-09 | 2016-08-10 | Borealis AG | Adhesive composition |
| US10723870B2 (en) | 2015-02-20 | 2020-07-28 | Borealis Ag | Process for producing heterophasic copolymers of propylene |
| EP3088458B2 (en) | 2015-04-27 | 2022-10-05 | Abu Dhabi Polymers Company Limited (Borouge) L.L.C. | Polyethylene composition suitable for pipe applications |
| CN107580611B (zh) | 2015-05-20 | 2019-12-24 | 博里利斯股份公司 | 用于制备聚乙烯组合物的方法 |
| US10619036B2 (en) | 2015-06-10 | 2020-04-14 | Borealis Ag | Multimodal polyethylene copolymer |
| EP3307814B1 (en) | 2015-06-10 | 2019-07-03 | Borealis AG | Multimodal copolymer of ethylene and at least two alpha-olefin comonomers and final articles made thereof |
| EP3103818B1 (en) | 2015-06-12 | 2018-06-06 | Borealis AG | Method and apparatus for polymerising olefins in gas phase |
| EP3109275B1 (en) | 2015-06-22 | 2017-08-09 | Abu Dhabi Polymers Company Limited (Borouge) L.L.C. | Polyethylene composition for pipe applications with improved sagging and extrusion properties |
| ES2707391T3 (es) | 2015-06-23 | 2019-04-03 | Borealis Ag | Procedimiento para la producción de resinas de LLDPE |
| EP3178853B1 (en) | 2015-12-07 | 2018-07-25 | Borealis AG | Process for polymerising alpha-olefin monomers |
| 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 |
| EP3238938A1 (en) | 2016-04-29 | 2017-11-01 | Borealis AG | Machine direction oriented films comprising multimodal copolymer of ethylene and at least two alpha-olefin comonomers |
| EP3241611B1 (en) | 2016-05-02 | 2020-03-04 | Borealis AG | A process for feeding a polymerisation catalyst |
| EP3243622B1 (en) | 2016-05-13 | 2020-09-09 | Borealis AG | Process for hydraulic conveying of polyolefin pellets |
| US10961334B2 (en) | 2016-05-31 | 2021-03-30 | Borealis Ag | Polymer composition and a process for production of the polymer composition |
| EP3252085B1 (en) | 2016-05-31 | 2022-11-09 | Borealis AG | Jacket with improved properties |
| EP3257879A1 (en) | 2016-06-17 | 2017-12-20 | Borealis AG | Bi- or multimodal polyethylene with low unsaturation level |
| EP3257895A1 (en) | 2016-06-17 | 2017-12-20 | Borealis AG | Bi- or multimodal polyethylene terpolymer with enhanced rheological properties |
| EP3472240B1 (en) | 2016-06-17 | 2020-04-01 | Borealis AG | Bi- or multimodal polyethylene terpolymer with enhanced rheological properties |
| ES2799148T3 (es) | 2016-06-17 | 2020-12-15 | Borealis Ag | Polietileno bi- o multimodal con bajo nivel de insaturación |
| ES2791353T3 (es) | 2016-06-17 | 2020-11-04 | Borealis Ag | Polietileno bimodal o multimodal con propiedades reológicas potenciadas |
| US20190256695A1 (en) | 2016-06-22 | 2019-08-22 | Borealis Ag | Polymer composition and a process for production of the polymer composition |
| JP7004679B2 (ja) | 2016-06-23 | 2022-01-21 | ボレアリス エージー | 触媒不活性化のためのプロセス |
| BR112019005788B1 (pt) | 2016-09-28 | 2022-11-01 | Borealis Ag | Processo para produzir um tubo revestido |
| EP3544814B1 (en) | 2016-11-25 | 2022-08-03 | Borealis AG | A process for producing polyolefin film composition and films prepared thereof |
| EP3545033B1 (en) | 2016-11-25 | 2023-06-14 | Borealis AG | New composition and process |
| US10029230B1 (en) | 2017-01-24 | 2018-07-24 | Chevron Phillips Chemical Company Lp | Flow in a slurry loop reactor |
| ES2786756T3 (es) | 2017-06-20 | 2020-10-13 | Borealis Ag | Un método, una disposición y uso de una disposición para la polimerización de olefinas |
| EP3418309A1 (en) | 2017-06-20 | 2018-12-26 | Borealis AG | A method, an arrangement and use of an arrangement of preparing polymer |
| EP3418330B2 (en) | 2017-06-21 | 2023-07-19 | Borealis AG | Polymer composition and a process for production of the polymer composition |
| ES2786567T3 (es) | 2017-06-23 | 2020-10-13 | Borealis Ag | Procedimiento y aparato para la retirada de material polimérico de un reactor de polimerización de olefinas con gases y sólido |
| CN109135067A (zh) | 2017-06-27 | 2019-01-04 | 阿布扎比聚合物有限责任公司(博禄) | 用于制造高压管的聚丙烯组合物 |
| CN111315567B (zh) | 2017-10-24 | 2022-02-25 | 博里利斯股份公司 | 多层聚合物膜 |
| EP3479896A1 (en) | 2017-11-03 | 2019-05-08 | Borealis AG | Polymerization reactor system comprising at least one withdrawal valve |
| EP3483189A1 (en) | 2017-11-14 | 2019-05-15 | Borealis AG | Automated method for terminating an olefin polymerization reaction under emergency conditions |
| EP3486261B1 (en) | 2017-11-17 | 2020-06-24 | Borealis AG | Method for improving the cooling capacity of a gas solids olefin polymerization reactor |
| ES2795985T3 (es) | 2017-11-17 | 2020-11-25 | Borealis Ag | Procedimiento de división del gas de fluidización de retorno en un reactor de polimerización de olefinas de gas sólidos |
| CN111801357A (zh) | 2018-03-02 | 2020-10-20 | 博里利斯股份公司 | 方法 |
| CN111684006B (zh) | 2018-03-21 | 2023-08-11 | 博里利斯股份公司 | 双峰或多峰聚乙烯组合物 |
| EP3567061B1 (en) | 2018-05-09 | 2023-10-04 | Borealis AG | Polypropylene pipe composition |
| KR102731869B1 (ko) | 2018-05-30 | 2024-11-19 | 보레알리스 아게 | 다중 모드 고밀도 폴리에틸렌의 제조 방법 |
| EP3807330A1 (en) | 2018-06-14 | 2021-04-21 | Borealis AG | Process for polymerizing olefin in a gas phase reactor with improved thermal homogeneity |
| WO2020016370A1 (en) | 2018-07-19 | 2020-01-23 | Borealis Ag | Process for the preparation of an uhmwpe homopolymer |
| TWI785263B (zh) | 2018-08-02 | 2022-12-01 | 奧地利商柏列利斯股份公司 | 在多階段式聚合方法中聚合乙烯之方法 |
| KR102593922B1 (ko) | 2018-10-31 | 2023-10-25 | 보레알리스 아게 | 개선된 균질성을 갖는 고압력 저항성 파이프용 폴리에틸렌 조성물 |
| EP3647645A1 (en) | 2018-10-31 | 2020-05-06 | Borealis AG | Polyethylene composition for high pressure resistant pipes |
| WO2020094347A1 (en) | 2018-11-07 | 2020-05-14 | Borealis Ag | Polyolefin composition with improved impact and whitening resistance |
| WO2020099564A1 (en) | 2018-11-15 | 2020-05-22 | Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. | Polymer composition for blow molding applications |
| EP3880723B1 (en) | 2018-11-15 | 2025-06-25 | Borealis AG | Propylene butene copolymer |
| ES3003909T3 (en) | 2018-11-15 | 2025-03-11 | Borealis Ag | Propylene butene copolymer |
| WO2020099562A1 (en) | 2018-11-15 | 2020-05-22 | Borealis Ag | Composition |
| CN113039220B (zh) | 2018-11-28 | 2023-03-14 | 阿布扎比聚合物有限公司(博禄) | 用于膜应用的聚乙烯组合物 |
| US20220119564A1 (en) | 2018-11-29 | 2022-04-21 | Borealis Ag | Process to produce a polymer and polymer |
| EP3902851A1 (en) | 2018-12-28 | 2021-11-03 | Borealis AG | A process for producing polyolefin film composition and films prepared thereof |
| WO2020136164A1 (en) | 2018-12-28 | 2020-07-02 | Borealis Ag | A process for producing polyolefin film composition and films prepared thereof |
| EP3924421B1 (en) | 2019-02-14 | 2025-06-04 | ABU DHABI POLYMERS CO. LTD (BOROUGE) - Sole Proprietorship L.L.C. | Self-sealing polyolefin composition |
| KR102723897B1 (ko) | 2019-06-04 | 2024-11-01 | 보레알리스 아게 | 폴리올레핀의 생산 방법 및 폴리올레핀 생산을 위한 다단계 반응기 어셈블리 |
| CA3142431A1 (en) | 2019-06-04 | 2020-12-10 | Borealis Ag | Process and reactor assembly for the enhancement of hydrodynamics in a gas-solids fluidized bed reactor |
| EP3986608B1 (en) | 2019-06-24 | 2023-08-02 | Borealis AG | Process for preparing polypropylene with improved recovery |
| WO2021013552A1 (en) | 2019-07-22 | 2021-01-28 | Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. | Single site catalysed multimodal polyethylene composition |
| CN114555656B (zh) | 2019-09-05 | 2024-02-20 | 埃克森美孚化学专利公司 | 具有宽分子量分布和高劲度的聚烯烃和抗冲共聚物的制备方法 |
| CN115210267A (zh) | 2020-01-24 | 2022-10-18 | 埃克森美孚化学专利公司 | 生产双峰聚烯烃和抗冲共聚物的方法 |
| CN115135681A (zh) | 2020-02-17 | 2022-09-30 | 埃克森美孚化学专利公司 | 具有高分子量尾部的基于丙烯的聚合物组合物 |
| EP3868793B1 (en) | 2020-02-24 | 2026-01-07 | Borealis GmbH | Process for producing alpha-olefin polymers in a multistage polymerization process |
| ES2928002T3 (es) | 2020-03-24 | 2022-11-14 | Borealis Ag | Película soplada rígida |
| WO2021191019A1 (en) | 2020-03-24 | 2021-09-30 | Borealis Ag | Polyethylene composition for a film layer |
| CN115413281B (zh) | 2020-03-24 | 2024-03-08 | 北欧化工股份公司 | 膜层用聚乙烯组合物 |
| WO2022008608A1 (en) | 2020-07-10 | 2022-01-13 | Borealis Ag | Polyolefin composition with improved resistance to high temperature |
| EP4179020B1 (en) | 2020-07-10 | 2024-12-25 | Borealis AG | Polyethylene pipe resin with high resistance to slow crack growth |
| US20230227637A1 (en) | 2020-07-23 | 2023-07-20 | Borealis Ag | Multimodal ethylene copolymer |
| EP3988587B1 (en) | 2020-10-26 | 2025-09-17 | Borealis GmbH | Polyolefin pipe resin with very good sagging and slow crack growth resistance |
| EP4247864A1 (en) | 2020-11-23 | 2023-09-27 | Borealis AG | In-situ reactor blend of ziegler-natta catalysed, nucleated polypropylene and a metallocene catalysed polypropylene |
| MX2023006101A (es) | 2020-11-27 | 2023-06-06 | Borealis Ag | Sistema de alimentacion de catalizador. |
| CN116601177A (zh) | 2020-11-27 | 2023-08-15 | 博里利斯股份公司 | 工艺 |
| EP4019583B1 (en) | 2020-12-28 | 2024-04-10 | ABU DHABI POLYMERS CO. LTD (BOROUGE) - Sole Proprietorship L.L.C. | Polyethylene composition for film applications with improved toughness and stiffness |
| EP4023712A1 (en) | 2020-12-29 | 2022-07-06 | Borealis AG | Highly track resistant polyethylene compositions for wire and cable applications |
| EP4023711A1 (en) | 2020-12-29 | 2022-07-06 | Borealis AG | Highly track resistant polyethylene compounds for wire and cable applications |
| EP4029914B1 (en) | 2021-01-14 | 2025-03-05 | Borealis AG | Heterophasic polyolefin composition |
| WO2022258804A1 (en) | 2021-06-11 | 2022-12-15 | Borealis Ag | A process for producing a multimodal ethylene polymer and films prepared therefrom |
| WO2022268951A1 (en) | 2021-06-24 | 2022-12-29 | Borealis Ag | Use of a swelling agent in multi-stage polyolefin production |
| CN117881707A (zh) | 2021-06-24 | 2024-04-12 | 博里利斯股份公司 | 生产聚乙烯聚合物的方法 |
| WO2022268959A1 (en) | 2021-06-24 | 2022-12-29 | Borealis Ag | Improving catalyst performance in multi-stage polyolefin production |
| BR112023026990A2 (pt) | 2021-06-24 | 2024-03-12 | Borealis Ag | Processo para polimerização de olefinas com distribuição estreita de tamanho de partícula |
| CA3223212A1 (en) | 2021-06-24 | 2022-12-29 | Borealis Ag | Utilization of 1-hexene in multi-stage polyolefin production |
| EP4151677A1 (en) | 2021-09-21 | 2023-03-22 | Borealis AG | Biaxially oriented film |
| EP4405402A1 (en) | 2021-09-23 | 2024-07-31 | Borealis AG | Process for producing a propylene copolymer |
| EP4155328A1 (en) | 2021-09-23 | 2023-03-29 | Borealis AG | Propylene-butene random copolymer composition with low extractable content |
| EP4163323B1 (en) | 2021-10-07 | 2024-05-29 | Borealis AG | Biaxially oriented film |
| EP4163309A1 (en) | 2021-10-07 | 2023-04-12 | Borealis AG | Hdpe |
| EP4201969A1 (en) | 2021-12-23 | 2023-06-28 | Borealis AG | Polyethylene composition for pipes having very good impact properties and slow crack growth resistance |
| WO2023117558A1 (en) | 2021-12-23 | 2023-06-29 | Borealis Ag | Polymer composition for pipes having very good impact properties and slow crack growth resistance |
| EP4209546A1 (en) | 2022-01-10 | 2023-07-12 | Abu Dhabi Polymers Co. Ltd (Borouge) LLC | Polyethylene pipe resin with improved long term hydrostatic strength |
| US11845814B2 (en) | 2022-02-01 | 2023-12-19 | Chevron Phillips Chemical Company Lp | Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor |
| EP4234614A1 (en) | 2022-02-25 | 2023-08-30 | Borealis AG | A film comprising a polyethylene composition having improved gloss |
| EP4234626B1 (en) | 2022-02-25 | 2024-07-03 | Borealis AG | A polyethylene composition with improved stiffness and toughness |
| EP4234627B1 (en) | 2022-02-25 | 2024-12-04 | Borealis AG | A polyethylene composition with improved stiffness and toughness |
| EP4234629B1 (en) | 2022-02-28 | 2024-10-30 | Borealis AG | Nucleated bimodal polypropylene |
| EP4239015B1 (en) | 2022-03-02 | 2024-05-22 | Borealis AG | Monoaxially oriented film comprising a polyethylene composition |
| EP4239014A1 (en) | 2022-03-02 | 2023-09-06 | Borealis AG | Film comprising a polyethylene composition |
| EP4245805B1 (en) | 2022-03-18 | 2024-09-18 | Borealis AG | Polyethylene blend for a film layer |
| EP4249388B1 (en) | 2022-03-23 | 2024-06-19 | Borealis AG | Living hinge of an alpha-nucleated propylene copolymer |
| EP4253453A1 (en) | 2022-04-01 | 2023-10-04 | Borealis AG | Blown film |
| PL4257640T3 (pl) | 2022-04-04 | 2025-03-24 | Borealis Ag | Rura zawierająca kompozycję polipropylonową |
| EP4522687A1 (en) | 2022-05-12 | 2025-03-19 | Borealis AG | Composition for a film layer |
| EP4522669A1 (en) | 2022-05-12 | 2025-03-19 | Borealis AG | Polyethylene copolymer for a film layer |
| EP4275889B1 (en) | 2022-05-12 | 2024-10-16 | Borealis AG | Oriented multilayered film |
| EP4296289A1 (en) | 2022-06-23 | 2023-12-27 | Borealis AG | Polyethylene copolymer for a film layer |
| WO2024003206A1 (en) | 2022-07-01 | 2024-01-04 | Borealis Ag | Polyethylene copolymer for a film layer |
| EP4306442B1 (en) | 2022-07-14 | 2025-05-07 | Borealis AG | Composition |
| EP4306444B1 (en) | 2022-07-14 | 2025-03-05 | Borealis AG | Composition |
| CN119630709A (zh) | 2022-07-27 | 2025-03-14 | 埃克森美孚化学专利公司 | 应变硬化增强的聚丙烯组合物及其生产方法 |
| EP4317216A1 (en) | 2022-08-03 | 2024-02-07 | Abu Dhabi Polymers Co. Ltd (Borouge) LLC | Low density ethylene terpolymer composition |
| EP4344869A1 (en) | 2022-09-30 | 2024-04-03 | Borealis AG | Multimodal ethylene copolymer composition and films comprising the same |
| CN120112422A (zh) | 2022-10-18 | 2025-06-06 | 北欧化工公司 | 多层膜 |
| EP4386046A1 (en) | 2022-12-16 | 2024-06-19 | Borealis AG | Composition |
| EP4389414A1 (en) | 2022-12-19 | 2024-06-26 | Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C. | Multilayer collation shrink film |
| EP4389418A1 (en) | 2022-12-19 | 2024-06-26 | Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C. | Multilayer collation shrink film |
| EP4389776A1 (en) | 2022-12-20 | 2024-06-26 | Borealis AG | Process |
| EP4389786A1 (en) | 2022-12-20 | 2024-06-26 | Borealis AG | Heterophasic polypropylene composition |
| EP4389819A1 (en) | 2022-12-20 | 2024-06-26 | Borealis AG | Polyolefin composition with excellent balance of properties |
| EP4389820A1 (en) | 2022-12-21 | 2024-06-26 | Borealis AG | Polypropylene random copolymer compositions with improved impact resistance for pipe applications |
| EP4389777A1 (en) | 2022-12-22 | 2024-06-26 | Borealis AG | High density polyethylene for pipe applications with improved pressure performance and mechanical properties |
| WO2024133044A1 (en) | 2022-12-23 | 2024-06-27 | Borealis Ag | Process for producing a polypropylene homo- or copolymer |
| WO2024133045A1 (en) | 2022-12-23 | 2024-06-27 | Borealis Ag | Process for producing a high-flow polypropylene homopolymer |
| CN120380039A (zh) | 2022-12-23 | 2025-07-25 | 北欧化工股份公司 | 聚丙烯共聚物的生产方法 |
| EP4393989A1 (en) | 2022-12-27 | 2024-07-03 | Borealis AG | Use of a magnesium hydroxide filler in highly track resistant polyethylene compositions |
| EP4393967A1 (en) | 2022-12-27 | 2024-07-03 | Borealis AG | Pe100-rc with butene as comonomer |
| EP4403598A1 (en) | 2023-01-23 | 2024-07-24 | Borealis AG | Polymer composition comprising recycled low density polyethylene for packaging applications |
| EP4417629A1 (en) | 2023-02-14 | 2024-08-21 | Borealis AG | Polyethylene blend for a film layer |
| EP4665795A1 (en) | 2023-02-14 | 2025-12-24 | Borealis GmbH | Polyethylene blend for a film layer |
| EP4431552B1 (en) | 2023-03-14 | 2025-07-30 | Borealis GmbH | Biaxially oriented polyethylene film with improved stiffness |
| EP4450538A1 (en) | 2023-04-21 | 2024-10-23 | Borealis AG | Blown film |
| EP4450539B1 (en) | 2023-04-21 | 2025-10-29 | Borealis GmbH | Blown film |
| EP4455171A1 (en) | 2023-04-28 | 2024-10-30 | Borealis AG | Moulded articles |
| KR20260016942A (ko) | 2023-05-23 | 2026-02-04 | 보레알리스 게엠베하 | 폴리올레핀 펠릿을 생산하는 방법, 및 이에 의해 생산되는 펠릿 |
| EP4480576B1 (en) | 2023-06-23 | 2025-10-29 | Borealis GmbH | Method for controlling the production rate of a propylene homo- or copolymer in a gas phase reactor |
| WO2025003240A1 (en) | 2023-06-26 | 2025-01-02 | Borealis Ag | Blend of post-consumer recycled (pcr) polymer and modifier |
| EP4484456A1 (en) | 2023-06-26 | 2025-01-01 | Borealis AG | Heterophasic polypropylene composition |
| WO2025003221A1 (en) | 2023-06-26 | 2025-01-02 | Borealis Ag | Process for the preparation of a heterophasic polypropylene composition |
| WO2025003435A1 (en) | 2023-06-30 | 2025-01-02 | Borealis Ag | Process |
| WO2025027178A1 (en) | 2023-08-03 | 2025-02-06 | Borealis Ag | Heterophasic polypropylene composition with high melting point |
| EP4516852A1 (en) | 2023-08-30 | 2025-03-05 | Borealis AG | Polyethylene blend for a film layer |
| EP4541583A1 (en) | 2023-10-18 | 2025-04-23 | Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C. | Multilayer film |
| WO2025104234A1 (en) | 2023-11-15 | 2025-05-22 | Borealis Ag | Polyethylene compositions |
| EP4570856A1 (en) | 2023-12-14 | 2025-06-18 | Borealis AG | Polypropylene random copolymer compositions with improved impact resistance for pipe applications |
| EP4570831A1 (en) | 2023-12-15 | 2025-06-18 | Borealis AG | Polyethylene copolymer for a film layer |
| EP4574894A1 (en) | 2023-12-22 | 2025-06-25 | Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C. | Polyethylene pipe with improved high temperature hydrostatic pressure performance |
| EP4588972A1 (en) | 2024-01-22 | 2025-07-23 | Borealis AG | Heterophasic propylene compositions with improved stiffness and impact |
| EP4624518A1 (en) | 2024-03-28 | 2025-10-01 | Borealis GmbH | Process for producing blown films based on ssc c2c3 random copolymer |
| WO2025219537A1 (en) | 2024-04-18 | 2025-10-23 | Borealis Gmbh | Process for propylene polymerization with optimized prepolymerization conditions |
| WO2025219499A1 (en) | 2024-04-18 | 2025-10-23 | Borealis Gmbh | Processes for polymerising olefins |
| WO2025219533A1 (en) | 2024-04-18 | 2025-10-23 | Borealis Gmbh | Process for the preparation of a propylene homopolymer |
| WO2025242653A1 (en) | 2024-05-22 | 2025-11-27 | Borealis Gmbh | Polyolefin compositions for blown films |
| WO2025262147A1 (en) | 2024-06-19 | 2025-12-26 | Borealis Gmbh | Processes for polymerising olefins |
| WO2026002813A1 (en) | 2024-06-24 | 2026-01-02 | Borealis Gmbh | Processes for polymerising olefins |
| EP4703395A1 (en) | 2024-08-26 | 2026-03-04 | Borealis GmbH | Cast film consisting of a polypropylene composition |
| EP4703427A1 (en) | 2024-08-26 | 2026-03-04 | Borealis GmbH | Cast film consisting of a polypropylene composition |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242150A (en) * | 1960-03-31 | 1966-03-22 | Phillips Petroleum Co | Method and apparatus for the recovery of solid olefin polymer from a continuous path reaction zone |
| US3324093A (en) * | 1963-10-21 | 1967-06-06 | Phillips Petroleum Co | Loop reactor |
| DE2409839C2 (de) * | 1974-03-01 | 1982-11-18 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen kleinteiliger Olefinpolymerisate |
| US4182810A (en) * | 1978-04-21 | 1980-01-08 | Phillips Petroleum Company | Prevention of fouling in polymerization reactors |
| DE3270927D1 (en) * | 1981-01-30 | 1986-06-12 | Sumitomo Chemical Co | Process for producing ethylene polymers |
| US4582816A (en) * | 1985-02-21 | 1986-04-15 | Phillips Petroleum Company | Catalysts, method of preparation and polymerization processes therewith |
| US4754007A (en) * | 1985-03-08 | 1988-06-28 | Enron Chemical Company | Copolymerization of ethylene |
-
1990
- 1990-12-28 FI FI906427A patent/FI89929C/fi not_active IP Right Cessation
-
1991
- 1991-12-18 JP JP4502099A patent/JP2707366B2/ja not_active Expired - Lifetime
- 1991-12-18 DE DE69125025T patent/DE69125025T2/de not_active Expired - Lifetime
- 1991-12-18 WO PCT/FI1991/000397 patent/WO1992012181A1/en not_active Ceased
- 1991-12-18 US US08/066,004 patent/US5391654A/en not_active Expired - Lifetime
- 1991-12-18 EP EP92900835A patent/EP0564488B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2707366B2 (ja) | 1998-01-28 |
| JPH06504074A (ja) | 1994-05-12 |
| DE69125025D1 (de) | 1997-04-10 |
| FI906427A0 (fi) | 1990-12-28 |
| FI906427L (fi) | 1992-06-29 |
| WO1992012181A1 (en) | 1992-07-23 |
| EP0564488B1 (en) | 1997-03-05 |
| DE69125025T2 (de) | 1997-08-14 |
| FI89929B (fi) | 1993-08-31 |
| US5391654A (en) | 1995-02-21 |
| EP0564488A1 (en) | 1993-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI89929C (fi) | Foerfarande foer homo- eller sampolymerisering av eten | |
| RU2165436C2 (ru) | Способ предотвращения обрастания в полимеризационных реакторах | |
| KR101368580B1 (ko) | 중합을 위한 루프형 반응기 | |
| RU2207347C2 (ru) | Способ получения композиции этиленовых полимеров | |
| FI86867B (fi) | Flerstegsprocess foer framstaellning av polyeten. | |
| RU2161625C2 (ru) | Способ получения полимеров этилена | |
| RU97111880A (ru) | Способ получения полиэтилена | |
| US7820116B2 (en) | Slurry phase polymerisation process | |
| KR970705579A (ko) | 유동층에서 단량체를 중합시키는 방법(process for polymerizing monomers in fluidized beds) | |
| RU2004123882A (ru) | Пленка с высокой ударной вязкостью | |
| US4754007A (en) | Copolymerization of ethylene | |
| KR101233961B1 (ko) | 슬러리상 중합 방법 | |
| EP0161060A1 (en) | Copolymerization of ethylene | |
| KR101422889B1 (ko) | 슬러리 상 중합 방법 | |
| EP2185608B1 (en) | Slurry phase polymerisation process | |
| PT1716189E (pt) | Processo de polimerização de olefinasna presença de uma agente anti-incrustante | |
| JP5202955B2 (ja) | スラリー相重合方法 | |
| CN114829422B (zh) | 用于控制分子量分布和共聚单体组成分布的聚合方法和反应器 | |
| KR20220019028A (ko) | 알파-올레핀의 공중합을 위한 고온 용액 방법 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| PC | Transfer of assignment of patent |
Owner name: BOREALIS POLYMERS OY |
|
| PC | Transfer of assignment of patent |
Owner name: BOREALIS POLYMERS OY |
|
| MM | Patent lapsed |
Owner name: BOREALIS POLYMERS OY |