KR101886993B1 - 에틸렌계 중합체 및 성형체 - Google Patents
에틸렌계 중합체 및 성형체 Download PDFInfo
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- KR101886993B1 KR101886993B1 KR1020180007154A KR20180007154A KR101886993B1 KR 101886993 B1 KR101886993 B1 KR 101886993B1 KR 1020180007154 A KR1020180007154 A KR 1020180007154A KR 20180007154 A KR20180007154 A KR 20180007154A KR 101886993 B1 KR101886993 B1 KR 101886993B1
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- ethylene polymer
- temperature
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- polymerization
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- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 3
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- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
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Abstract
[해결 수단] 극한 점도(η)가 11 이상 28 이하이고,
시차 주사 열량계(DSC)를 사용한 하기 (1) 내지 (3)의 측정 조건에 의해 얻어지는 2회째의 승온 과정의 DSC 곡선에 있어서, 2회째의 승온 과정의 융해 열량(ΔH2)에 대하여 융점(Tm2)보다 높은 영역의 융해 열량(ΔHb)의 비율(ΔHb/ΔH2×100)이 18% 이상인 에틸렌계 중합체.
(DSC 측정 조건)
(1) 50℃에서 1분간 유지 후, 10℃/min의 승온 속도로 180℃까지 승온.
(2) 180℃에서 5분간 유지 후, 10℃/min의 강온 속도로 50℃까지 강온.
(3) 50℃에서 5분간 보온 후, 10℃/min의 승온 속도로 180℃까지 승온.
Description
Claims (7)
- 극한 점도(η)가 11 이상 28 이하이고,
시차 주사 열량계(DSC)를 사용한 하기 (1) 내지 (3)의 측정 조건에 의해 얻어지는 2회째의 승온 과정의 DSC 곡선에 있어서, 2회째의 승온 과정의 융해 열량(ΔH2)에 대하여 융점(Tm2)보다 높은 영역의 융해 열량(ΔHb)의 비율(ΔHb/ΔH2×100)이 18% 이상인, 에틸렌계 중합체.
(DSC 측정 조건)
(1) 50℃에서 1분간 유지 후, 10℃/min의 승온 속도로 180℃까지 승온.
(2) 180℃에서 5분간 유지 후, 10℃/min의 강온 속도로 50℃까지 강온.
(3) 50℃에서 5분간 보온 후, 10℃/min의 승온 속도로 180℃까지 승온. - 제1항에 있어서, 상기 DSC를 사용한 측정 조건의 강온 과정에 있어서의, 발열 피크의 반값폭이 3.0 이상 6.0 이하인, 에틸렌계 중합체.
- 제1항 또는 제2항에 있어서, 하기 (1) 내지 (3)의 가공 조건에 의해 얻어지는 프레스 시트 밀도가 910㎏/㎥ 이상 940㎏/㎥ 이하인, 에틸렌계 중합체.
(가공 조건)
(1) 200℃, 0.1㎫의 조건에서 900초간 예열.
(2) 200℃, 15㎫의 조건에서 300초간 가압.
(3) 25℃, 10㎫의 조건에서 600초간 냉각. - 제1항 또는 제2항에 있어서, 티타늄 함유량이, 에틸렌계 중합체 전체에 대하여, 중량 환산으로 3ppm 이하인, 에틸렌계 중합체.
- 제1항 또는 제2항에 있어서, 염소 함유량이 에틸렌계 중합체 전체에 대하여, 중량 환산으로 10ppm 이하인, 에틸렌계 중합체.
- 제1항 또는 제2항에 기재된 에틸렌계 중합체를 포함하는, 성형체.
- 제6항에 있어서, 미다공막인, 성형체.
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