RU96108821A - HIGH STRENGTH PIPE FROM POLYMER BASED ON ETHYLENE - Google Patents

HIGH STRENGTH PIPE FROM POLYMER BASED ON ETHYLENE

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Publication number
RU96108821A
RU96108821A RU96108821/06A RU96108821A RU96108821A RU 96108821 A RU96108821 A RU 96108821A RU 96108821/06 A RU96108821/06 A RU 96108821/06A RU 96108821 A RU96108821 A RU 96108821A RU 96108821 A RU96108821 A RU 96108821A
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RU
Russia
Prior art keywords
ethylene
pipe according
molecular weight
pipe
weight component
Prior art date
Application number
RU96108821/06A
Other languages
Russian (ru)
Other versions
RU2161749C2 (en
Inventor
Бертольд Йоахим
Бем Людвиг
Бройерс Вернер
Эндерле Йоханнес-Фридрих
Флайснер Манфред
Лехт Райнер
Люкер Хартмут
Шульте Ульрих
Бремштруп Хайнер
Original Assignee
Хехст АГ
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 DE19515678A external-priority patent/DE19515678B4/en
Application filed by Хехст АГ filed Critical Хехст АГ
Publication of RU96108821A publication Critical patent/RU96108821A/en
Application granted granted Critical
Publication of RU2161749C2 publication Critical patent/RU2161749C2/en

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Claims (11)

1. Высокопрочная труба из полимера на основе этилена с бимодальным молекулярно-массовым распределением, отличающаяся тем, что она имеет стойкость к образованию трещин вследствие внутренних напряжений ≥ 1400 и вязкость при разрыве BZ ≥ 7 мДж/мм2.1. High-strength pipe made of ethylene-based polymer with a bimodal molecular weight distribution, characterized in that it has a crack resistance due to internal stresses ≥ 1400 and a breaking strength BZ ≥ 7 mJ / mm 2 . 2. Труба по п.1, отличающаяся тем, что она имеет модуль ползучести при изломе, измеренный согласно ДИН 54852 - Z4, ≥ 1100 Н/мм2.2. The pipe according to claim 1, characterized in that it has a creep modulus at kink, measured according to DIN 54852 - Z4, ≥ 1100 N / mm 2 . 3. Труба по п.1 или 2, отличающаяся тем, что она изготовлена из полимера на основе этилена, в котором соотношение массы низкомолекулярной составной части к массе высокомолекулярной составной части находится в интервале 0,5 - 2,0. 3. The pipe according to claim 1 or 2, characterized in that it is made of a polymer based on ethylene, in which the ratio of the mass of the low molecular weight component to the mass of the high molecular weight component is in the range of 0.5 - 2.0. 4. Труба по п.3, отличающаяся тем, что она изготовлена из полимера на основе этилена, который содержит сомономер с 4 - 6 атомами углерода в количестве 0 - 0,1 мас.% в низкомолекулярной составной части и в количестве 2,5 - 4 мас.% в высокомолекулярной составной части. 4. The pipe according to claim 3, characterized in that it is made of a polymer based on ethylene, which contains a comonomer with 4 to 6 carbon atoms in an amount of 0 - 0.1 wt.% In a low molecular weight component and in an amount of 2.5 - 4 wt.% In the high molecular weight component. 5. Труба по п. 3 или 4, отличающаяся тем, что низкомолекулярная составная часть полимера на основе этилена имеет индекс расплава
Figure 00000001
в интервале 200 - 800 г/10 мин, предпочтительно 250 - 400 г/10 мин.5. A pipe according to claim 3 or 4, characterized in that the low molecular weight component of the ethylene-based polymer has a melt index
Figure 00000001
in the range of 200 to 800 g / 10 min, preferably 250 to 400 g / 10 min. 6. Труба по одному из пп.3 - 5, отличающаяся тем, что полимер на основе этилена имеет индекс расплава
Figure 00000002
≤ 0,35 г/10 мин.6. The pipe according to one of claims 3 to 5, characterized in that the ethylene-based polymer has a melt index
Figure 00000002
≤ 0.35 g / 10 min. 7. Труба по одному из пп.1 - 6, отличающаяся тем, что она имеет ударную вязкость KSZ ISO, измеренную согласно ИСО 179 (ДИН 53453), при -20oC - по меньшей мере 15 мДж/мм2, а при +23oC - по меньшей мере 20 мДж/мм2.7. The pipe according to one of claims 1 to 6, characterized in that it has an impact strength of KSZ ISO , measured according to ISO 179 (DIN 53453), at -20 o C - at least 15 mJ / mm 2 , and at + 23 o C - at least 20 mJ / mm 2 . 8. Труба по п.7, отличающаяся тем, что она имеет ударную вязкость, измеренную согласно ИСО 179 (ДИН 53453), при -20oC по меньшей мере 20 мДж/мм2, а при +23oC - по меньшей мере 30 мДж/мм2.8. The pipe according to claim 7, characterized in that it has a toughness measured according to ISO 179 (DIN 53453), at -20 o C at least 20 mJ / mm 2 , and at +23 o C at least 30 mJ / mm 2 . 9. Труба по одному из пп.1 - 8, отличающаяся тем, что она обладает сопротивлением против быстрого роста трещин, измеряемым согласно ИСО/DIS 13477, для трубы класса давлений PN 10 диаметром 110 мм (S4-тест), ≥ 20 бар. 9. A pipe according to one of claims 1 to 8, characterized in that it has resistance against rapid crack growth, measured according to ISO / DIS 13477, for a pipe of pressure class PN 10 with a diameter of 110 mm (S4 test), ≥ 20 bar. 10. Применение трубы для транспортировки газов, в особенности для транспортировки природного газа. 10. The use of pipes for transporting gases, especially for transporting natural gas. 11. Применение трубы для транспортировки воды. 11. The use of pipes for transporting water.
RU96108821/06A 1995-04-28 1996-04-26 High-strength pipe made from ethylene-based polymer RU2161749C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515678.1 1995-04-28
DE19515678A DE19515678B4 (en) 1995-04-28 1995-04-28 Polyethylene tube with improved mechanical properties

Publications (2)

Publication Number Publication Date
RU96108821A true RU96108821A (en) 1998-07-10
RU2161749C2 RU2161749C2 (en) 2001-01-10

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Family Applications (1)

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RU96108821/06A RU2161749C2 (en) 1995-04-28 1996-04-26 High-strength pipe made from ethylene-based polymer

Country Status (24)

Country Link
US (1) US5908679A (en)
EP (1) EP0739937B1 (en)
JP (1) JP3443234B2 (en)
KR (1) KR100422268B1 (en)
AR (1) AR001708A1 (en)
AT (1) ATE201038T1 (en)
BR (1) BR9602044A (en)
CA (1) CA2175158C (en)
CZ (1) CZ290303B6 (en)
DE (2) DE19515678B4 (en)
DK (1) DK0739937T3 (en)
ES (1) ES2158185T3 (en)
GR (1) GR3035998T3 (en)
HU (1) HU215084B (en)
IL (1) IL118040A (en)
MY (1) MY117346A (en)
NO (1) NO961684L (en)
PL (1) PL183128B1 (en)
PT (1) PT739937E (en)
RU (1) RU2161749C2 (en)
SG (1) SG77573A1 (en)
TR (1) TR199600351A2 (en)
TW (1) TW345609B (en)
ZA (1) ZA963336B (en)

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