KR102525719B1 - 올레핀계 중합체 필름 및 그 제조방법 - Google Patents
올레핀계 중합체 필름 및 그 제조방법 Download PDFInfo
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Abstract
Description
도 2 내지 4는 각각 실시예 1 내지 실시예 3의 올레핀계 중합체의 CDS 측정을 위한 GPC-FTIR 그래프이다.
도 5와 6은 각각 비교예 1과 비교예 2의 올레핀계 중합체의 CDS 측정을 위한 GPC-FTIR 그래프이다.
도 7은 실시예 1, 비교예 1 및 비교예 2의 열 봉합 강도를 나타내는 그래프이다.
도 8은 실시예 1, 비교예 1 및 비교예 2의 핫 택 강도를 나타내는 그래프이다.
| 촉매 투입량 (g) |
에틸렌 분압 (kg/㎠) |
수소/에틸렌 몰비(%) |
1-헥센/에틸렌 몰비(%) |
촉매 활성 (gPE/gCat-hr) |
|
| 실시예 1 | 4.12 | 15.0 | 0.04 | 1.35 | 1,700 |
| 실시예 2 | 2.00 | 15.2 | 0.05 | 1.21 | 3,500 |
| 실시예 3 | 3.50 | 14.7 | 0.07 | 1.18 | 2,000 |
| I2.16 (g/10분) |
I21.6 (g/10분) |
MFR | CDS | 밀도 (g/㎤) |
|
| 실시예 1 | 1.0 | 22.2 | 22.2 | 3.29 | 0.9180 |
| 실시예 2 | 0.95 | 21.9 | 23.0 | 3.35 | 0.9182 |
| 실시예 3 | 1.1 | 26.4 | 24.0 | 3.60 | 0.9179 |
| 단위 | 실시예 1 | 비교예 1 | 비교예 2 | |
| I2.16 | (g/10분) | 1.0 | 1.08 | 1.0 |
| MFR | - | 22.2 | 16 | 33.2 |
| CDS | - | 3.29 | 0.07 | 0.01 |
| 밀도 | (g/㎤) | 0.9180 | 0.9182 | 0.9202 |
| 용융 온도 | (℃) | 119.3 | 117.2 | 108.3 |
| 흐림도 | % | 5.45 | 8.72 | 4.66 |
| 투명도 | % | 99.6 | 98.0 | 99.3 |
| 열 봉합 강도(0.2 bar, 1.5초, 125℃) | (gf/2.5 ㎝) | 93.06 | 2.16 | 5.22 |
| 열 봉합 강도(0.2 bar, 1.5초, 140℃) | (gf/2.5 ㎝) | 217.3 | 190.4 | 160.18 |
| 핫 택 강도(95℃) | (N/2 ㎝) | 0.657 | 0.307 | 0.280 |
| 핫 택 강도(110℃) | (N/2 ㎝) | 3.813 | 3.133 | 1.727 |
Claims (17)
- (1) 밀도가 0.910~0.940 g/㎤; (2) 190℃에서 21.6 kg의 하중으로 측정되는 용융지수(I21.6)와 2.16 kg 하중으로 측정되는 용융지수(I2.16)의 비(melt flow ratio; MFR)가 10~60; (3) 아래 수학식 1로 정의되는 공단량체 분포 기울기(comonomer distribution slope; CDS)가 1 이상인 올레핀계 중합체를 성형하여 제조되며, 0.2 bar, 1.5초 및 125℃ 조건에서 측정되는 열 봉합 강도(heat seal strength)가 90 gf/2.5 ㎝ 이상이고, 0.2 bar, 1.5초 및 140℃ 조건에서 측정되는 열 봉합 강도가 210 gf/2.5 ㎝ 이상인 올레핀계 중합체 필름으로서, 올레핀계 중합체가 아래 화학식 1로 표시되는 적어도 1종의 전이금속 화합물과 적어도 1종의 조촉매 화합물을 포함하는 촉매의 존재하에 올레핀계 단량체를 중합하여 제조되는, 올레핀계 중합체 필름:
[수학식 1]
[화학식 1]
위 수학식 1에서, C20과 C80은 공단량체 분포에서 누적 질량 분율(cumulative weight fraction)이 각각 20%와 80%인 지점에서의 공단량체 함량이고, M20과 M80은 공단량체 분포에서 누적 질량 분율이 각각 20%와 80%인 지점에서의 분자량이고,
위 화학식 1에서, n은 각각 독립적으로 1~20의 정수이고,
M은 티타늄(Ti), 지르코늄(Zr) 또는 하프늄(Hf)이며,
X는 각각 독립적으로 할로겐, C1-20 알킬, C2-20 알케닐, C2-20 알키닐, C6-20 아릴, C1-20 알킬 C6-20 아릴, C6-20 아릴 C1-20 알킬, C1-20 알킬아미도, 또는 C6-20 아릴아미도이고,
R1 내지 R4와 R5 내지 R8은 각각 독립적으로 수소, 치환 또는 비치환된 C1-20 알킬, 치환 또는 비치환된 C2-20 알케닐, 치환 또는 비치환된 C6-20 아릴, 치환 또는 비치환된 C1-20 알킬 C6-20 아릴, 치환 또는 비치환된 C6-20 아릴 C1-20 알킬, 치환 또는 비치환된 C1-20 헤테로알킬, 치환 또는 비치환된 C3-20 헤테로아릴, 치환 또는 비치환된 C1-20 알킬아미도, 치환 또는 비치환된 C6-20 아릴아미도, 또는 치환 또는 비치환된 C1-20 실릴이고,
R9 내지 R11과 R12 내지 R14는 각각 독립적으로 치환 또는 비치환된 C1-20 알킬, 치환 또는 비치환된 C2-20 알케닐, 치환 또는 비치환된 C6-20 아릴, 치환 또는 비치환된 C1-20 알킬 C6-20 아릴, 치환 또는 비치환된 C6-20 아릴 C1-20 알킬, 치환 또는 비치환된 C1-20 헤테로알킬, 치환 또는 비치환된 C3-20 헤테로아릴, 치환 또는 비치환된 C1-20 알킬아미도, 치환 또는 비치환된 C6-20 아릴아미도, 또는 치환 또는 비치환된 C1-20 실릴이고,
R1 내지 R4와 R5 내지 R8은 각각 독립적으로 인접한 기가 연결되어 치환 또는 비치환된 포화 또는 불포화 C4-20 고리를 형성할 수 있다. - 제1항에 있어서, (1) 올레핀계 중합체의 밀도가 0.910~0.920 g/㎤; (2) MFR이 20~40; (3) CDS가 2~5인 올레핀계 중합체 필름.
- 삭제
- 제1항에 있어서, 조촉매 화합물이 아래 화학식 2로 표현되는 화합물, 화학식 3으로 표현되는 화합물 및 화학식 4로 표현되는 화합물로 구성되는 군으로부터 선택되는 올레핀계 중합체 필름:
[화학식 2]
[화학식 3]
[화학식 4]
[L-H]+[Z(A)4]- 또는 [L]+[Z(A)4]-
위 화학식 2에서, n은 2 이상의 정수이고, Ra는 할로겐 원자, C1-20 탄화수소기 또는 할로겐으로 치환된 C1-20 탄화수소기이고,
위 화학식 3에서, D는 알루미늄(Al) 또는 보론(B)이고, Rb, Rc 및 Rd는 각각 독립적으로 할로겐 원자, C1-20 탄화수소기, 할로겐으로 치환된 C1-20 탄화수소기 또는 C1-20 알콕시기이며,
위 화학식 4에서, L은 중성 또는 양이온성 루이스 염기이고, [L-H]+ 및 [L]+는 브뢴스테드 산이며, Z는 13족 원소이고, A는 각각 독립적으로 치환 또는 비치환된 C6-20 아릴기이거나 치환 또는 비치환된 C1-20 알킬기이다. - 제1항에 있어서, 촉매가 전이금속 화합물과 조촉매 화합물을 담지하는 담체를 더 포함하는 올레핀계 중합체 필름.
- 제1항에 있어서, 올레핀계 중합체가 올레핀계 단량체와 올레핀계 공단량체의 공중합체인 올레핀계 중합체 필름.
- 제6항에 있어서, 올레핀계 단량체가 에틸렌이고, 올레핀계 공단량체가 프로필렌, 1-부텐, 1-펜텐, 4-메틸-1-펜텐, 1-헥센, 1-헵텐, 1-옥텐, 1-데센, 1-운데센, 1-도데센, 1-테트라데센 및 1-헥사데센으로 구성되는 군으로부터 선택되는 하나 이상인 올레핀계 중합체 필름.
- 제7항에 있어서, 올레핀계 중합체가 올레핀계 단량체가 에틸렌이고 올레핀계 공단량체가 1-헥센인 선형 저밀도 폴리에틸렌인 올레핀계 중합체 필름.
- 제1항에 있어서, 95℃ 핫 택 강도(hot tack strength)가 0.5 N/2 ㎝ 이상이고, 110℃ 핫 택 강도가 3.5 N/2 ㎝ 이상인 올레핀계 중합체 필름.
- 제1항에 있어서, 두께 50 ㎛으로 성형하여 측정한 흐림도(haze)가 10% 이하인 올레핀계 중합체 필름.
- 제1항에 있어서, 스트레치 필름, 오버랩 필름, 라미, 사일리지 랩 및 농업용 필름으로 구성되는 군으로부터 선택되는 하나인 올레핀계 중합체 필름.
- (a) 아래 화학식 1로 표시되는 적어도 1종의 전이금속 화합물과 적어도 1종의 조촉매 화합물을 포함하는 촉매의 존재하에 올레핀계 단량체를 중합하여 올레핀계 중합체를 얻는 단계; 및 (b) 올레핀계 중합체를 성형하여 필름을 얻는 단계를 포함하되, 올레핀계 중합체의 (1) 밀도가 0.910~0.940 g/㎤; (2) 190℃에서 21.6 kg의 하중으로 측정되는 용융지수(I21.6)와 2.16 kg 하중으로 측정되는 용융지수(I2.16)의 비(melt flow ratio; MFR)가 10~60; (3) 아래 수학식 1로 정의되는 공단량체 분포 기울기(comonomer distribution slope; CDS)가 1 이상인 올레핀계 중합체를 성형하여 제조되며, 0.2 bar, 1.5초 및 125℃ 조건에서 측정되는 열 봉합 강도(heat seal strength)가 90 gf/2.5 ㎝ 이상, 0.2 bar, 1.5초 및 140℃ 조건에서 측정되는 열 봉합 강도가 210 gf/2.5 ㎝ 이상인 올레핀계 중합체 필름의 제조방법:
[화학식 1]
[수학식 1]
위 화학식 1에서, n, M, X 및 R1 내지 R14는 제1항에서 정의한 바와 같고, 위 수학식 1에서, C20, C80, M20 및 M80은 제1항에서 정의한 바와 같다. - 제12항에 있어서, 단계 (a)에서, 올레핀계 단량체의 중합이 기상 중합으로 수행되는 올레핀계 중합체 필름의 제조방법.
- 제13항에 있어서, 단계 (a)에서, 올레핀계 단량체의 중합이 기상 유동층 반응기 내에서 수행되는 올레핀계 중합체 필름의 제조방법.
- 제12항에 있어서, 단계 (a)에서, 올레핀계 중합체가 올레핀계 단량체와 올레핀계 공단량체가 공중합되어 제조되며, 올레핀계 단량체가 에틸렌이고, 올레핀계 공단량체가 프로필렌, 1-부텐, 1-펜텐, 4-메틸-1-펜텐, 1-헥센, 1-헵텐, 1-옥텐, 1-데센, 1-운데센, 1-도데센, 1-테트라데센 및 1-헥사데센으로 구성되는 군으로부터 선택되는 하나 이상인 올레핀계 중합체 필름의 제조방법.
- 제15항에 있어서, 올레핀계 단량체가 에틸렌이고 올레핀계 공단량체가 1-헥센인 올레핀계 중합체 필름의 제조방법.
- 제12항에 있어서, 올레핀계 중합체 필름의 95℃ 핫 택 강도(hot tack strength)가 0.5 N/2 ㎝ 이상이고, 110℃ 핫 택 강도가 3.5 N/2 ㎝ 이상인 올레핀계 중합체 필름의 제조방법.
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| KR102121298B1 (ko) | 2012-12-14 | 2020-06-11 | 노바 케미컬즈 (인터내셔널) 소시에테 아노님 | 에틸렌 공중합체 조성물, 필름 및 중합 방법 |
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