KR102109308B1 - 높은 응력 균열 저항을 갖는 블로우 성형용 폴리에틸렌 조성물 - Google Patents
높은 응력 균열 저항을 갖는 블로우 성형용 폴리에틸렌 조성물 Download PDFInfo
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- KR102109308B1 KR102109308B1 KR1020197016044A KR20197016044A KR102109308B1 KR 102109308 B1 KR102109308 B1 KR 102109308B1 KR 1020197016044 A KR1020197016044 A KR 1020197016044A KR 20197016044 A KR20197016044 A KR 20197016044A KR 102109308 B1 KR102109308 B1 KR 102109308B1
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Classifications
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
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- 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
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- 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
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- 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
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- C08F2/001—Multistage polymerisation processes characterised by a change in reactor conditions without deactivating the intermediate polymer
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- 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
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- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F210/14—Monomers containing five or more carbon atoms
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- 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
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- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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Abstract
1) 23℃에서 ISO 1183-1에 따라 측정한, 0.952 초과 내지 0.957 g/cm3의 밀도;
2) 12 내지 25의 MIF/MIP 비;
3) 18 내지 40 g/10분의 MIF;
4) 30,000 내지 55,000 Pa.s의 η0.02;
5) 0.55 이상의 장쇄 분지 지수(LCBI);
6) 55 내지 75의 비 (η0.02/1000)/LCBI.
Description
도면은 본 명세서에 개시되어 있는 에틸렌 중합 방법의 다양한 실시형태에 따라 사용하기에 적합한 2개의 직렬 연결 기상 반응기에서, 본 명세서에 개시된 폴리에틸렌 조성물의 다양한 실시형태를 생산하는 공정을 단순화한 흐름도의 예시적인 실시형태이다.
다양한 실시형태는 도면에 나타낸 배치 및 수단으로 한정되는 것이 아니라는 점을 이해해야 한다.
실시예 1 | 실시예 2 | 비교예 1 | 비교예 2 | |
조작 조건 제1 반응기 | ||||
H2/C2H4 몰비 | 2.5 | 2.6 | - | - |
C2H4% | 11.8 | 12.3 | - | - |
A)의 밀도 (g/cm3) | 0.969 | 0.969 | ||
A)의 MIE [2.16 kg] (g/10 분) | 73 | 77 | ||
스플릿 (중량%) | 49 | 49 | - | - |
조작 조건 제2 반응기 | ||||
H2/C2H4 몰비 상승관 | 0.31 | 0.31 | - | - |
C2H4% 상승관 | 11.4 | 12.4 | - | - |
C6H12 % 상승관 | 0.33 | 0.23 | - | - |
H2/C2H4 몰비 하강관 | 0.09 | 0.11 | - | - |
C2H4% 하강관 | 3.5 | 3.3 | - | - |
C6H12 % 하강관 | 0.49 | 0.32 | - | - |
H2/C2H4 몰비 배리어 | 0.033 | 0.044 | - | - |
C2H4% 배리어 | 6.7 | 7.3 | - | - |
C6H12 % 배리어 | 0.62 | 0.43 | - | - |
최종 중합체 특성 | ||||
MIP [5 kg] (g/10 분) | 1.6 | 1.5 | 1.8 | 1.3 |
MIP [21.6 kg] (g/10 분) | 30.9 | 30 | 31.2 | 21.2 |
MIF/MIP | 19.6 | 19.9 | 17.5 | 16.4 |
밀도 (g/cm3) | 0.9537 | 0.9557 | 0.9551 | 0.955 |
스웰비 (%) | 186 | 177 | 195 | 152 |
Mw (g/mol) | 258400 | 240992 | 189960 | 231569 |
Mz (g/mol) | 1546730 | 1253650 | 941473 | 1106140 |
Mw/Mn | 21.51 | 21.1 | 11.06 | 17.35 |
LCBI | 0.67 | 0.63 | 0.9 | 0.68 |
공단량체 함량 IR (중량%) | 0.8 | 0.4 | 0.8 (C6H12) | < 0.8 (C4H8) |
η0.02 | 38,768 | 41,224 | 57,813 | 35,667 |
(η0.02/1000)/LCBI | 57.9 | 65.4 | 64.2 | 52.5 |
AZK -30°C (kJ/m²) | 83.4 | 85.9 | 97.8 | 85.6 |
샤르피 aCN, T = -30°C (kJ/m2) | 4.9 | 5.6 | 8.2 | 6.8 |
50℃에서 벨시험 | 888 | 378 | 11 | 118 |
FNCT* 4 MPa/80°C (시간) | 11 | 6 | 2.0 | 3.5 |
FNCT* 6 MPa/50°C (시간) | 77 | 37 | 7.5 | 21.5 |
겔 합계/m2 >700 ㎛ | 0.0 | 0.3 | 0.0 | 2.3 |
겔 합계/m2 총량 | 423 | 738 | 7,121 | 12,599 |
HMW COPO 지수 | 1.4 | 0.9 | - | - |
Claims (10)
- 하기의 특징을 갖는 폴리에틸렌 조성물:
1) 23℃에서 ISO 1183에 따라 측정한, 0.952 초과 내지 0.957 g/cm3 의 밀도;
2) 12 내지 25의 MIF/MIP 비, 여기서 MIF는 21.60 kg의 하중 하의 190℃에서의 용융 흐름 지수이고, MIP는 5 kg의 하중 하의 190℃에서의 용융 흐름 지수이고, 양쪽 모두 ISO 1133-1에 따라 측정하였음;
3) 18 내지 40 g/10분의 MIF;
4) 30,000 내지 55,000 Pa.s의 η0.02; 여기서 η0.02는 190℃의 온도에서 플레이트-플레이트 회전형 레오미터에서의 동적 진동 전단 (dynamic oscillatory shear)에 의해 측정되는, 0.02 rad/s의 각진동수에서의 복합 전단 점도임;
5) 장쇄 분지 지수(LCBI)는 0.55 이상이고, 여기서 LCBI는 GPC-MALLS로 측정한 측정 평균 제곱 회전 반경 Rg 대, 동일한 분자량을 갖는 선형 PE에 대한 평균 제곱 회전 반경의 비임;
6) 비 (η0.02/1000)/ LCBI는 1000과 LCBI로 나눈 η0.02로, 55 내지 75임. - 제1항에 있어서, 1종 이상의 에틸렌 공중합체로 이루어지거나, 또는 이를 포함하는 폴리에틸렌 조성물.
- 제1항 또는 제2항에 있어서, 지글러-나타 중합 촉매를 사용하여 얻을 수 있는, 폴리에틸렌 조성물.
- 제3항에 있어서, 상기 지글러-나타 중합 촉매가 하기 a) 내지 c)의 반응 생성물을 포함하는 폴리에틸렌 조성물:
a) MgCl2 상에 담지된 Ti 화합물을 포함하는 고체 촉매 성분으로서, 상기 화합물이 티타늄 화합물을 MgCl2 또는 전구체 Mg 화합물과, 선택적으로 불활성 매질의 존재 하에, 접촉시킴으로써, 중간 생성물 a')를 얻고, a’)를 예비 중합시키고, 전자 공여체 화합물과 접촉시킴으로써 얻어지는, 고체 촉매 성분;
b) 유기 Al 화합물; 및 선택적으로
c) 외부 전자 공여체 화합물. - 제1항에 있어서, 하기의 부가적인 특징 중 적어도 하나를 갖는 폴리에틸렌 조성물:
-조성물의 총 중량을 기준으로 1.5 중량% 이하의 공단량체 함량;
-0.5 내지 5의 HMWcopo 지수;
여기서 상기 HMWcopo 지수는 하기의 식에 따라 측정되며:
HMWcopo = (η0.02 x tmaxDSC)/(10^5)
상기 식에서, η0.02는 0.02 rad/s의 각진동수 인가에 의한 동적 진동 전단 모드(dynamic oscillatory shear mode)에서 평행판 (또는 소위 플레이트-플레이트) 레오미터에서 190℃의 온도에서 측정된 용융물의 복소 점도 (Pa.s)이고; tmaxDSC는 시차 주사 열량계(differential scanning calorimetry, DSC) 장치에서 등온 모드에서 측정한 정지 상태 하에서 124℃의 온도에서 결정화 열 흐름의 최대값 (mW)에 도달하는 데 필요한 시간(분) (결정화의 하프 타임 (t1/2)에 해당하는 최대 결정화 속도가 달성되는 시간)이고; LCBI는 1,000,000 g/mol의 몰 중량에서 GPC-MALLS로 측정한 측정 평균 제곱 회전 반경 Rg 대, 동일한 분자량을 갖는 선형 PE에 대한 평균 제곱 회전 반경의 비임. - 제1항에 있어서, 하기 A) 및 B)를 포함하는 폴리에틸렌 조성물:
A) 밀도가 0.960 g/cm3 이상이고, ISO 1133에 따라 2.16 kg의 하중 하에 190℃에서 측정한 용융 흐름 지수 MIE가 40 g/10분 이상인 30 내지 70 중량%의 에틸렌 단독중합체 또는 공중합체 ;
B) A)의 MIE 값보다 낮은 MIE 값을 갖는 30 내지 70 중량%의 에틸렌 공중합체. - 제1항의 폴리에틸렌 조성물을 포함하는 제조품.
- 제7항에 있어서, 블로우 성형 물품 형태의 제조품.
- 모든 중합 단계를 MgCl2 상에 담지된 지글러-나타 중합 촉매의 존재 하에 수행하는 제1항의 폴리에틸렌 조성물의 제조방법.
- 제9항에 있어서, 하기의 단계를 임의의 상호 순서로 포함하는 방법:
a) 수소의 존재 하에서 기상 반응기에서 에틸렌을 선택적으로 1종 이상의 공단량체와 함께 중합하는 단계;
b) 단계 a)보다 적은 양의 수소의 존재 하에, 다른 기상 반응기에서 에틸렌을 1종 이상의 공단량체와 공중합하는 단계;
여기서, 상기 기상 반응기 중 적어도 하나에 있어서, 성장하는 중합체 입자가 고속 유동화 또는 수송 조건 하에서, 제1 중합 영역을 통해 상방으로 흐르고, 상기 제1 중합 영역을 떠난 후, 제2 중합 영역에 들어가고, 성장하는 중합체 입자가 제2 중합 영역을 통해 중력의 작용 하에 하방으로 흐르고, 상기 제2 중합 영역을 떠난 후, 제1 중합 영역 내에 재도입됨으로써 상기 2개의 중합 영역 사이에 중합체의 순환을 확립함.
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PCT/EP2017/077796 WO2018095701A1 (en) | 2016-11-24 | 2017-10-30 | Polyethylene composition for blow molding having high stress cracking resistance |
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WO2018095700A1 (en) | 2016-11-24 | 2018-05-31 | Basell Polyolefine Gmbh | Polyethylene composition for blow molding having high swell ratio and impact resistance |
BR112021004198B1 (pt) * | 2018-09-20 | 2024-01-30 | Basell Polyolefine Gmbh | Composição de polietileno para filmes |
CN115307798B (zh) * | 2021-05-07 | 2024-12-27 | 中国石油天然气股份有限公司 | 表征非晶高分子材料内应力的方法 |
WO2024056727A1 (en) | 2022-09-15 | 2024-03-21 | Basell Polyolefine Gmbh | Polyethylene composition for blow molding having an improved swell behavior |
EP4587491A1 (en) | 2022-09-15 | 2025-07-23 | Basell Polyolefine GmbH | Polyethylene composition for blow molding having an improved swell behavior |
US12351706B2 (en) | 2022-09-15 | 2025-07-08 | Basell Polyolefine Gmbh | Polyethylene composition for blow molding having an improved swell behavior |
WO2024056725A1 (en) | 2022-09-15 | 2024-03-21 | Basell Polyolefine Gmbh | Polyethylene composition for blow molding having an improved swell behavior |
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BR112019009961B1 (pt) | 2022-11-08 |
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