RU2002102239A - POLYETHYLENE FORMING MASS AND PRODUCED FROM IT PIPE WITH IMPROVED MECHANICAL PROPERTIES - Google Patents

POLYETHYLENE FORMING MASS AND PRODUCED FROM IT PIPE WITH IMPROVED MECHANICAL PROPERTIES

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Publication number
RU2002102239A
RU2002102239A RU2002102239/04A RU2002102239A RU2002102239A RU 2002102239 A RU2002102239 A RU 2002102239A RU 2002102239/04 A RU2002102239/04 A RU 2002102239/04A RU 2002102239 A RU2002102239 A RU 2002102239A RU 2002102239 A RU2002102239 A RU 2002102239A
Authority
RU
Russia
Prior art keywords
pipe according
pipe
polyethylene
molecular weight
mfi
Prior art date
Application number
RU2002102239/04A
Other languages
Russian (ru)
Other versions
RU2237686C2 (en
Inventor
Людвиг БЕМ
Йоахим БЕРТОЛЬД
Йоханнес-Фридрих ЭНДЕРЛЕ
Эльке ДАММ
Ульрих ШУЛЬТЕ
Original Assignee
Базелль Полиолефине Гмбх
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
Priority claimed from DE19929812A external-priority patent/DE19929812A1/en
Application filed by Базелль Полиолефине Гмбх filed Critical Базелль Полиолефине Гмбх
Publication of RU2002102239A publication Critical patent/RU2002102239A/en
Application granted granted Critical
Publication of RU2237686C2 publication Critical patent/RU2237686C2/en

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Claims (10)

1. Полиэтиленовая формовочная масса с бимодальным распределением молярной массы, которая образуется в двух последовательно соединенных стадиях полимеризации и имеет общую плотность ≥0,948 г/см3 и MFI190/5, составляющий ≥0,2 дг/мин, отличающаяся тем, что она содержит низкомолекулярный этилен гомополимер А в количестве 35-65 вес.%, который имеет коэффициент вязкости VZA 40-90 см3/г, индекс расплава MFI190/2,16 A 40-2000 дг/мин и плотность dA≥0,965 г/см3, и высокомолекулярный этилен сополимер В в количестве 35-65 вес.%, который имеет коэффициент вязкости VZВ 500-2000 см3/г, индекс расплава MFI190/5 0,02-0,2 дг/мин и плотность dВ 0,922-0,944 г/см3, и что фракция, полученная с п-ксилолом из полиэтиленовой формовочной смеси при препаративном TREF-анализе при температуре 78°С ± 3 К, имеет среднюю молярную массу ≥200000 г/моль.1. Polyethylene molding mass with a bimodal distribution of molar mass, which is formed in two series-connected stages of polymerization and has a total density of ≥0.948 g / cm 3 and MFI 190/5 of ≥0.2 dg / min, characterized in that it contains low molecular weight ethylene homopolymer A in an amount of 35-65 wt.%, which has a viscosity coefficient VZ A 40-90 cm 3 / g, melt index MFI 190 / 2.16 A 40-2000 dg / min and a density d A≥ 0.965 g / cm 3 and high molecular weight ethylene copolymer B in an amount of 35-65 wt.%, which has a viscosity coefficient VZ B of 500-2000 cm 3 / g, melt index MFI 190/5 0.02-0.2 dg / min and density d B 0.922-0.944 g / cm 3 , and that the fraction obtained with p-xylene from a polyethylene molding mixture by preparative TREF analysis at a temperature 78 ° C ± 3 K, has an average molar mass of ≥200000 g / mol. 2. Труба из полиэтиленовой формовочной массы по п.1, отличающаяся тем, что она имеет стойкость к образованию трещин вследствие внутренних напряжений ≥1500 ч и вязкость разрушения BZ ≥9 мДж/мм2.2. A pipe from a polyethylene molding material according to claim 1, characterized in that it has a cracking resistance due to internal stresses ≥1500 h and a fracture toughness BZ ≥9 mJ / mm 2 . 3. Труба по п.2, отличающаяся тем, что она имеет модуль ползучести при изгибе, измеренный согласно ДИН 54852-Z4, составляющий ≥ 1350 Н/мм мм2.3. The pipe according to claim 2, characterized in that it has a bending creep modulus, measured according to DIN 54852-Z4, of ≥ 1350 N / mm mm 2 . 4. Труба по п.2 или 3, отличающаяся тем, что она изготовлена из полиэтилена с бимодальным распределением молярной массы, которая содержит 4-10 атомов углерода в количестве 2,5-4 вес.% в высокомолекулярной доле В.4. The pipe according to claim 2 or 3, characterized in that it is made of polyethylene with a bimodal distribution of the molar mass, which contains 4-10 carbon atoms in an amount of 2.5-4 wt.% In high molecular weight B. 5. Труба по п.3 или 4, отличающаяся тем, что низкомолекулярная доля полиэтилена имеет индекс расплава MFI2,16/190°С 200-800 г/10 мин, предпочтительно 250-450 г/10 мин.5. The pipe according to claim 3 or 4, characterized in that the low molecular weight fraction of polyethylene has a MFI melt index of 2.16 / 190 ° C. of 200-800 g / 10 min, preferably 250-450 g / 10 min. 6. Труба по одному из пп.3-5, отличающаяся тем, что полиэтилен имеет индекс расплава MFI5/190°C ≤ 0,19 дг/мин.6. The pipe according to one of claims 3 to 5, characterized in that the polyethylene has a melt index MFI 5/190 ° C ≤ 0.19 dg / min. 7. Труба по одному из пп.2-6, отличающаяся тем, что она имеет ударную вязкость KSZISO, измеренную согласно ISO 179 (ДИН 53453) при -20°С по меньшей мере 25 мДж/мм2 и при +23°С по меньшей мере 40 мДж/мм2.7. A pipe according to one of claims 2 to 6, characterized in that it has an impact strength of KSZ ISO , measured according to ISO 179 (DIN 53453) at -20 ° C of at least 25 mJ / mm 2 and at + 23 ° C at least 40 mJ / mm 2 . 8. Труба по одному из пп.2-7, отличающаяся тем, что она имеет сопротивление быстрому росту трещин, измеренное согласно ISO/DIS 13477 на трубе класса давления PN 10 с диаметром 110 мм (S4-тест), ≥ 20 бар.8. Pipe according to one of claims 2 to 7, characterized in that it has resistance to rapid crack growth, measured according to ISO / DIS 13477 on a pipe of pressure class PN 10 with a diameter of 110 mm (S4 test), ≥ 20 bar. 9. Труба по одному из пп.2-8, отличающаяся тем, что она предназначена для транспортирования газов, в частности, природного газа.9. A pipe according to one of claims 2 to 8, characterized in that it is intended for transporting gases, in particular natural gas. 10. Труба по одному из пп.2-8, отличающаяся тем, что она предназначена для транспортирования воды.10. A pipe according to one of claims 2 to 8, characterized in that it is intended for transporting water.
RU2002102239A 1999-06-30 2000-06-20 Polyethylene molding mass and tube with improved mechanical properties made therefrom RU2237686C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19929812.2 1999-06-30
DE19929812A DE19929812A1 (en) 1999-06-30 1999-06-30 Polyethylene molding compound and pipe made from it with improved mechanical properties

Publications (2)

Publication Number Publication Date
RU2002102239A true RU2002102239A (en) 2003-09-10
RU2237686C2 RU2237686C2 (en) 2004-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002102239A RU2237686C2 (en) 1999-06-30 2000-06-20 Polyethylene molding mass and tube with improved mechanical properties made therefrom

Country Status (14)

Country Link
US (1) US6770341B1 (en)
EP (1) EP1192216B1 (en)
JP (2) JP2003504442A (en)
KR (1) KR100703580B1 (en)
CN (1) CN1124311C (en)
AT (1) ATE277971T1 (en)
AU (1) AU768098B2 (en)
BR (1) BR0012059A (en)
CA (1) CA2377672C (en)
DE (2) DE19929812A1 (en)
ES (1) ES2230122T3 (en)
RU (1) RU2237686C2 (en)
WO (1) WO2001002480A1 (en)
ZA (1) ZA200110389B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1266933A1 (en) * 2001-06-14 2002-12-18 SOLVAY POLYOLEFINS EUROPE - BELGIUM (Société Anonyme) Polyethylene blends
EP1417260B1 (en) 2001-08-17 2005-08-03 Dow Global Technologies Inc. Bimodal polyethylene composition and articles made therefrom
CA2457430C (en) * 2001-08-31 2011-10-18 Dow Global Technologies Inc. Multimodal polyethylene material
EP1460105B1 (en) * 2003-03-20 2012-05-23 Borealis Technology Oy Polymer composition
MY145338A (en) * 2003-12-04 2012-01-31 Dow Global Technologies Inc Stabilized polyethylene material
CN101580967B (en) * 2004-01-01 2011-07-06 帝斯曼知识产权资产管理有限公司 High-performance polyethylene multi-filament yarn
ATE529453T1 (en) * 2004-04-03 2011-11-15 Borealis Tech Oy A PRESSURELESS POLYMER TUBE
KR20070117674A (en) * 2005-03-17 2007-12-12 다우 글로벌 테크놀로지스 인크. Pseudo-block copolymers and process employing chain shuttling agent
US20070003720A1 (en) * 2005-06-22 2007-01-04 Fina Technology, Inc. Cocatalysts useful for preparing polyethylene pipe
DE102005030941A1 (en) 2005-06-30 2007-01-11 Basell Polyolefine Gmbh Polyethylene molding compound for the production of injection-molded finished parts
DE102005040390A1 (en) 2005-08-25 2007-03-01 Basell Polyolefine Gmbh Multi-modal polyethylene moulding material for production of pipes, e.g. water pipes, comprises low-mol. wt. ethylene homopolymer, high-mol. wt. ethylene copolymer and ultrahigh-mol. wt. ethylene copolymer
PL1764385T3 (en) * 2005-09-15 2008-10-31 Borealis Tech Oy Pressure pipe comprising a multimodal polyethylene composition with an inorganic filler
CN101273445B (en) * 2005-09-28 2012-07-25 大见忠弘 Atmosphere controlled joint device, method and electronic device
US7595364B2 (en) 2005-12-07 2009-09-29 Univation Technologies, Llc High density polyethylene
ES2389876T3 (en) 2006-10-23 2012-11-02 Dow Global Technologies Inc. Method for manufacturing polyethylene compositions
EP1961777A1 (en) * 2007-02-26 2008-08-27 Borealis Technology Oy Polyolefin homo- or copolymer with decreased shrinkage sensivity and improved crystallization behavior
RU2448991C2 (en) * 2007-06-13 2012-04-27 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи Polyethylene compositions, methods of producing said compositions and articles made therefrom
US9249286B2 (en) * 2008-10-09 2016-02-02 Equistar Chemicals, Lp Multimodal polyethylene pipe resins and process
EP2599828A1 (en) 2011-12-01 2013-06-05 Borealis AG Multimodal polyethylene composition for the production of pipes with improved slow crack growth resistance
EP2620472B1 (en) * 2012-01-24 2018-05-30 Borealis AG Poyethylene composition with improved low temperature perssure resistance
WO2014064060A1 (en) * 2012-10-22 2014-05-01 Basell Polyolefine Gmbh Polyethylene composition having high swell ratio
US20140127438A1 (en) 2012-11-08 2014-05-08 Robert L. Sherman, Jr. Stabilized high-density polyethylene composition with improved resistance to deterioration and stabilizer system
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
WO2017009058A1 (en) * 2015-07-16 2017-01-19 Sabic Global Technologies B.V. Bimodal high density polyethylene
CN109790229B (en) * 2016-09-12 2021-08-06 泰国聚乙烯有限公司 Bimodal polyethylene composition and pipe comprising the same
EP3573810B1 (en) 2017-01-26 2021-06-30 SABIC Global Technologies B.V. Process for producing pipe by biaxial elongation
EP3595863B2 (en) 2017-03-17 2024-07-03 SABIC Global Technologies B.V. Process for producing pipe by biaxial elongation
EP3418330B2 (en) 2017-06-21 2023-07-19 Borealis AG Polymer composition and a process for production of the polymer composition

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461873A (en) * 1982-06-22 1984-07-24 Phillips Petroleum Company Ethylene polymer blends
JPH01201308A (en) * 1988-02-05 1989-08-14 Mitsubishi Kasei Corp Production of polyolefin
CA2033486A1 (en) 1990-01-03 1991-07-04 David T. Raske Extended-life polyethylene gas distribution pipe
DE4017661A1 (en) 1990-06-01 1991-12-05 Hoechst Ag METHOD FOR PRODUCING A POLY-1 OLEFIN
US5338589A (en) 1991-06-05 1994-08-16 Hoechst Aktiengesellschaft Polyethylene molding composition
JP3372058B2 (en) * 1992-07-29 2003-01-27 新日本石油化学株式会社 Polyethylene composition
JP3372074B2 (en) * 1992-12-04 2003-01-27 新日本石油化学株式会社 Polyethylene composition
BE1006439A3 (en) 1992-12-21 1994-08-30 Solvay Societe Annonyme Method for preparing a composition of polymers of ethylene, polymer composition and use of ethylene.
DE4436418A1 (en) 1994-10-12 1996-04-18 Buna Sow Leuna Olefinverb Gmbh Polyethylene molding composition
DE19515678B4 (en) * 1995-04-28 2007-12-27 Basell Polyolefine Gmbh Polyethylene tube with improved mechanical properties
SE504455C2 (en) * 1995-07-10 1997-02-17 Borealis Polymers Oy Cable sheath composition, its use and methods for its manufacture
US6485662B1 (en) 1996-12-03 2002-11-26 Union Carbide Chemicals & Plastics Technology Corporation Process for preparing a simulated in situ polyethylene blend
SE513632C2 (en) * 1998-07-06 2000-10-09 Borealis Polymers Oy Multimodal polyethylene composition for pipes

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