KR101003250B1 - 우수한 투명성과 높은 충격강도를 갖는 선형 저밀도 폴리에틸렌 수지 - Google Patents
우수한 투명성과 높은 충격강도를 갖는 선형 저밀도 폴리에틸렌 수지 Download PDFInfo
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- KR101003250B1 KR101003250B1 KR1020080081868A KR20080081868A KR101003250B1 KR 101003250 B1 KR101003250 B1 KR 101003250B1 KR 1020080081868 A KR1020080081868 A KR 1020080081868A KR 20080081868 A KR20080081868 A KR 20080081868A KR 101003250 B1 KR101003250 B1 KR 101003250B1
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- density polyethylene
- linear low
- low density
- impact strength
- polyethylene resin
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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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
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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
- C08F2/00—Processes of polymerisation
- C08F2/34—Polymerisation in gaseous state
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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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
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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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- 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
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
항 목 | 실시예1 | 실시예2 | 실시예3 | |
중합 조건 |
촉매 | 메탈로센 | 메탈로센 | 메탈로센 |
중합온도(℃) | 80 | 80 | 80 | |
중합압력(kg/cm2) | 19.2 | 19.2 | 19.2 | |
에틸렌(C2)(mol%) | 50 | 50 | 50 | |
수소(H2)(mol%) | 0.05 | 0.05 | 0.075 | |
H2/C2 | 0.001 | 0.001 | 0.0015 | |
1-헥센(mol%) | 0.65 | 0.5 | 0.65 | |
Bed 무게(Kg) | 70 | 70 | 70 | |
체류시간(hr) | 12 | 12 | 12 | |
생산량(kg/hr) | 6 | 6 | 6 | |
겉보기밀도(g/cc) | 0.48 | 0.48 | 0.48 | |
중합체 | 용융지수(g/10분) | 0.9 | 1.0 | 2.0 |
밀도(g/cm3) | 0.917 | 0.920 | 0.917 | |
MFRR | 32 | 32 | 30 | |
분자량분포 | 2.7 | 2.7 | 2.6 | |
제로전단점도 (poise) |
5.8x105 | 5.1x105 | 1.1x105 | |
용융탄성지수 | 1.8 | 1.7 | 1.1 | |
CDBI(%) | 93 | 92 | 93 | |
Haze(%) | 6.2 | 7.2 | 6.0 | |
FDI(g) | > 1300 | 530 | 580 |
항 목 | 비교예1 | 비교예2 | 비교예3 |
용융지수 (MI)(g/10분) |
0.60 | 1.0 | 1.0 |
밀도(g/cm3) | 0.921 | 0.918 | 0.915 |
MFRR | 31 | 16 | 17 |
분자량분포 | 5.5 | 2.7 | 3.0 |
제로점단점도(poise) | 2.84×105 | 9.27×104 | 9.35×104 |
CDBI(%) | 23 | 74 | 55 |
용융탄성지수 | 1.4 | 0.2 | 0.2 |
Haze(%) | 23.1 | 37.3 | 42.4 |
FDI(g) | 220 | 720 | >1300 |
Claims (2)
- 가교 비스인데닐계 성분을 포함하는 메탈로센 촉매를 사용하여 기상반응기에서 에틸렌과 알파-올레핀을 공중합하여 제조되며, 밀도가 ASTM D1505에 따라 23℃에서 측정시 0.940g/cm3 이하이고, 용융지수(MI)가 ASTM D1238에 따라 190℃, 2.16kg 하중하에서 측정시 0.2~4.0g/10분이고, 분자량 분포가 2~4, 조성분포폭지수(CDBI)가 85% 이상이고, 용융탄성지수(ER)가 -0.29 × MI + 1.5 이상이고, ASTM D1003에 따라 측정시 헤이즈가 10% 이하이며, ASTM D1709에 따라 측정시 충격강도가 300g 이상인 것을 특징으로 하는 선형 저밀도 폴리에틸렌 수지.
- 제 1항에 있어서, 상기 기상반응기에서 에틸렌과 알파-올레핀을 공중합할 때, 상기 가교 비스인데닐계 성분을 포함하는 메탈로센 촉매와 함께 촉매 활성화제로서 트리메틸알루미늄, 트리에틸알루미늄, 트리프로필알루미늄, 트리이소부틸알루미늄, 트리부틸알루미늄, 트리헥실알루미늄, 트리옥틸알루미늄 및 이들의 혼합물로 이루어진 군으로부터 선택되는 알킬알루미늄 활성화제를, 상기 알킬알루미늄 중의 알루미늄/메탈로센 촉매 중의 중심금속의 몰비가 100~1000이 되는 양으로 사용하여 제조되는 것을 특징으로 하는 선형 저밀도 폴리에틸렌 수지.
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KR1020080081868A KR101003250B1 (ko) | 2008-08-21 | 2008-08-21 | 우수한 투명성과 높은 충격강도를 갖는 선형 저밀도 폴리에틸렌 수지 |
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KR1020080081868A KR101003250B1 (ko) | 2008-08-21 | 2008-08-21 | 우수한 투명성과 높은 충격강도를 갖는 선형 저밀도 폴리에틸렌 수지 |
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KR20100023216A KR20100023216A (ko) | 2010-03-04 |
KR101003250B1 true KR101003250B1 (ko) | 2010-12-21 |
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Families Citing this family (2)
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KR101233881B1 (ko) * | 2011-01-11 | 2013-02-15 | 삼성토탈 주식회사 | 핫택특성이 우수한 선형 저밀도 폴리에틸렌 수지 |
KR101657680B1 (ko) | 2013-09-30 | 2016-09-19 | 주식회사 엘지화학 | 폴리올레핀 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020143123A1 (en) | 2000-10-06 | 2002-10-03 | Dekmezian Armenag Hagop | Linear low density polyethylenes with high melt strength and high melt index ratio |
KR100529425B1 (ko) | 1997-04-01 | 2005-11-17 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | 선형 저밀도 폴리에틸렌의 개선된 용이한 가공방법 |
JP2006241451A (ja) | 2005-02-07 | 2006-09-14 | Asahi Kasei Chemicals Corp | ポリエチレン組成物 |
WO2008002379A2 (en) | 2006-06-27 | 2008-01-03 | Univation Technologies, Llc | Polymers made with metallocene catalysts, for use in rotomolding and injection molding products |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100529425B1 (ko) | 1997-04-01 | 2005-11-17 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | 선형 저밀도 폴리에틸렌의 개선된 용이한 가공방법 |
US20020143123A1 (en) | 2000-10-06 | 2002-10-03 | Dekmezian Armenag Hagop | Linear low density polyethylenes with high melt strength and high melt index ratio |
JP2006241451A (ja) | 2005-02-07 | 2006-09-14 | Asahi Kasei Chemicals Corp | ポリエチレン組成物 |
WO2008002379A2 (en) | 2006-06-27 | 2008-01-03 | Univation Technologies, Llc | Polymers made with metallocene catalysts, for use in rotomolding and injection molding products |
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