KR101673248B1 - 흡수 용품에 사용하기 위한 강성 나노복합체 필름 - Google Patents
흡수 용품에 사용하기 위한 강성 나노복합체 필름 Download PDFInfo
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- KR101673248B1 KR101673248B1 KR1020167023157A KR20167023157A KR101673248B1 KR 101673248 B1 KR101673248 B1 KR 101673248B1 KR 1020167023157 A KR1020167023157 A KR 1020167023157A KR 20167023157 A KR20167023157 A KR 20167023157A KR 101673248 B1 KR101673248 B1 KR 101673248B1
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- film
- absorbent article
- ethylene polymer
- machine direction
- polymer
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Abstract
Description
도 1은 본 발명의 필름을 형성하기 위해 사용될 수 있는 공정의 일 실시예의 개략도이고;
도 2는 본 발명의 흡수 용품의 일 실시예의 상면도이고;
도 3은 장치 문이 개방된, 소음 수준을 평가하기 위해 사용될 수 있는 시험 장치의 사시도이고;
도 4는 장치 문이 닫힌, 도 3의 시험 장치의 사시도이고; 그리고
도 5는 화살표(190)를 따라 취한 도 3의 장치의 평면도이다.
본원에서의 참조 문자의 반복 사용은 본 발명의 동일 또는 유사한 특징부 또는 요소를 표현하고자 하는 것이다.
실시예 | LLDPE (중량%) | LDPE (중량%) | HDPE (중량%) | 중량 (LLDPE + LDPE) / HDPE 비 | 나노클레이 (중량%) | 평균 피크 응력 (Mpa) | 평균 피크 신장율 (%) | 평균 탄성계수(MPa) | 평균 파단시 부피 당 에너지(J/cm3) | ||||
MD | CD | MD | CD | MD | CD | MD | CD | ||||||
1 | 72 | 4 | 19 | 4.0 | 5 | 52 | 28 | 340 | 850 | 230 | 210 | 93 | 126 |
2 | 54 | 3 | 38 | 1.5 | 5 | 55 | 29 | 330 | 900 | 280 | 280 | 98 | 147 |
3 | 36 | 2 | 57 | 0.7 | 5 | 52 | 29 | 320 | 930 | 320 | 340 | 93 | 158 |
4 | 18 | 1 | 76 | 0.3 | 5 | 56 | 28 | 350 | 900 | 410 | 500 | 107 | 157 |
소음 수준 (dB) | 정규화된 소음 수준 | |
대조예 3 | 46.0 | 2.6 |
실시예 5 | 39.6 | 2.2 |
실시예 6 | 38.0 | 2.1 |
주변 | 17.7 | - |
Claims (32)
- 액체 투과성 층, 일반적으로 액체 불투과성 층, 및 상기 액체 투과성 층과 상기 일반적으로 액체 불투과성 층 사이에 위치한 흡수성 코어를 포함하는 흡수 용품으로, 여기서 상기 흡수 용품은 50㎛ 이하의 두께를 갖는 필름을 포함하되, 상기 필름은 중합체 조성물로부터 형성되는 층을 포함하고, 여기서 상기 중합체 조성물은 0.94g/cm3 이하의 밀도를 갖는 제1 에틸렌 중합체, 0.94g/cm3 초과의 밀도를 갖는 제2 에틸렌 중합체, 및 유기 표면 처리제를 갖는 나노클레이를 함유하고, 여기서 상기 제1 에틸렌 중합체 대 상기 제2 에틸렌 중합체의 중량비는 0.1 내지 10인, 흡수 용품.
- 제1항에 있어서, 0.94g/cm3 이하의 밀도를 갖는 에틸렌 중합체는 상기 중합체 조성물의 5중량% 내지 90중량%를 구성하고, 0.94g/cm3 초과의 밀도를 갖는 에틸렌 중합체는 상기 중합체 조성물의 5중량% 내지 90중량%를 구성하는, 흡수 용품.
- 제1항에 있어서, 상기 나노클레이는 상기 중합체 조성물의 0.5중량% 내지 20중량%를 구성하는, 흡수 용품.
- 제 1항에 있어서, 상기 제1 에틸렌 중합체, 상기 제2 에틸렌 중합체, 또는 양쪽 모두는 에틸렌과 α-올레핀의 공중합체를 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 제1 에틸렌 중합체는 선형 저밀도 폴리에틸렌, 저밀도 폴리에틸렌, 또는 이들의 혼합물을 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 제2 에틸렌 중합체는 고밀도 폴리에틸렌을 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 나노클레이는 필로실리케이트를 포함하는, 흡수 용품.
- 제7항에 있어서, 상기 필로실리케이트는 몬트모릴로나이트 또는 그 염을 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 나노클레이는 0.2 내지 100nm의 평균 두께를 가지는 판상체를 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 유기 표면 처리제는 사차 오늄을 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 중합체 조성물은 올레핀 성분과 극성 성분을 포함하는 폴리올레핀 상용화제를 더 포함하는, 흡수 용품.
- 제11항에 있어서, 상기 폴리올레핀 상용화제는 카르복실산 또는 카르복실산 무수물 그래프트된 폴리에틸렌을 포함하는, 흡수 용품.
- 제1항에 있어서, 상기 필름은 150 내지 1000MPa의 기계 방향으로의 영의 탄성계수를 나타내는, 흡수 용품.
- 제1항에 있어서, 상기 필름은 200 내지 1200MPa의 교차-기계 방향으로의 영의 탄성계수를 나타내는, 흡수 용품.
- 제1항에 있어서, 상기 필름은 200% 이상의 기계 방향으로의 피크 신장율 및 15 내지 150Mpa의 기계 방향으로의 궁극적인 인장 강도를 나타내는, 흡수 용품.
- 제1항에 있어서, 상기 필름은 700% 이상의 교차 기계 방향으로의 피크 신장율 및 15 내지 150Mpa의 교차 기계 방향으로의 궁극적인 인장 강도를 나타내는, 흡수 용품.
- 제1항에 있어서, 흡수 용품은 상기 용품의 에지에서 측방향으로 연장되는 적어도 하나의 날개를 더 포함하고, 여기서 상기 날개는 상기 필름을 함유하는, 흡수 용품.
- 제1항에 있어서, 상기 일반적으로 액체 불투과성 층은 상기 흡수 용품의 배면시트이되, 상기 배면시트는 상기 필름을 함유하는, 흡수 용품.
- 50㎛ 이하의 두께를 갖는 필름으로, 여기서 상기 필름은 중합체 조성물로부터 형성되는 층을 포함하되, 상기 중합체 조성물은 5중량% 내지 90중량%의 0.94g/cm3 이하의 밀도를 갖는 제1 에틸렌 중합체, 5중량% 내지 90중량%의 0.94g/cm3 초과의 밀도를 갖는 제2 에틸렌 중합체, 및 유기 표면 처리제를 갖는 0.5중량% 내지 20중량%의 나노클레이를 함유하고, 여기서 상기 제1 에틸렌 중합체 대 상기 제2 에틸렌 중합체의 중량비는 0.1 내지 10이고, 여기서 상기 필름은 150 내지 1000MPa의 기계 방향으로의 영의 탄성계수를 나타내는, 필름.
- 제19항에 있어서, 상기 필름은 200 내지 1200MPa의 교차-기계 방향으로의 영의 탄성계수를 나타내는, 필름.
- 제19항에 있어서, 상기 필름은 200% 이상의 기계 방향으로의 피크 신장율 및 15 내지 150Mpa의 기계 방향으로의 궁극적인 인장 강도를 나타내는, 필름.
- 제19항에 있어서, 상기 필름은 700% 이상의 교차 기계 방향으로의 피크 신장율 및 15 내지 150Mpa의 교차 기계 방향으로의 궁극적인 인장 강도를 나타내는, 필름.
- 제19항에 있어서, 상기 나노클레이는 몬트모릴로나이트 또는 그 염을 포함하는, 필름.
- 제19항에 있어서, 상기 나노클레이는 0.2 내지 100nm의 평균 두께를 가지는 판상체를 포함하는, 필름.
- 제19항에 있어서, 상기 유기 표면 처리제는 사차 오늄을 포함하는, 필름.
- 제19항에 있어서, 상기 필름은 다층이고 상기 중합체 조성물로부터 형성된 베이스 층 및/또는 스킨 층을 포함하는, 필름.
- 제19항에 있어서, 상기 제1 에틸렌 중합체는 선형 저밀도 폴리에틸렌, 저밀도 폴리에틸렌, 또는 이들의 혼합물을 포함하는, 필름.
- 제19항에 있어서, 상기 제2 에틸렌 중합체는 고밀도 폴리에틸렌을 포함하는, 필름.
- 제19항에 있어서, 상기 필름은 4,000Hz의 주파수에서 결정한 바, 2.5 이하의 정규화된 소음 수준을 나타내고, 여기서 상기 정규화된 소음 수준은 상기 필름의 소음 수준을 주변 환경의 소음 수준으로 나눔으로써 결정되는 것인, 필름.
- 제19항의 필름을 형성하는 방법으로, 상기 방법은,
제1 에틸렌 중합체, 제2 에틸렌 중합체, 및 나노클레이를 용융 배합하는 단계;
상기 중합체 조성물을 표면에 적용하여 상기 필름을 형성하는 단계를 포함하는, 방법. - 제30항에 있어서, 상기 용융 배합은 트윈 스크류 압출기에서 일어나는, 방법.
- 제30항에 있어서, 상기 나노클레이는 분말형태인, 방법.
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WO2015116953A1 (en) | 2015-08-06 |
RU2612931C1 (ru) | 2017-03-13 |
US20160325005A1 (en) | 2016-11-10 |
US9878065B2 (en) | 2018-01-30 |
EP3099280A4 (en) | 2017-10-11 |
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