KR100832009B1 - 미세다공성 폼층을 가진 반창고용 필름 및 그 제조 방법 - Google Patents
미세다공성 폼층을 가진 반창고용 필름 및 그 제조 방법 Download PDFInfo
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- KR100832009B1 KR100832009B1 KR1020070006483A KR20070006483A KR100832009B1 KR 100832009 B1 KR100832009 B1 KR 100832009B1 KR 1020070006483 A KR1020070006483 A KR 1020070006483A KR 20070006483 A KR20070006483 A KR 20070006483A KR 100832009 B1 KR100832009 B1 KR 100832009B1
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- South Korea
- Prior art keywords
- polyurethane
- film
- layer
- release paper
- gum
- Prior art date
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Abstract
Description
Claims (7)
- 삭제
- (a) 폴리올과 다이올, 잠재적 이온기를 갖는 화합물의 혼합용액에 이소시아네이트를 투입하여 반응시킨 후 중화시키고 이를 탈이온수에 수분산시켜 NCO말단 그룹을 갖는 폴리우레탄 프리폴리머 분산체를 얻은 다음 아민계 쇄연장제와 반응시켜 폴리우레탄의 사슬을 연장시키는 수분산 폴리우레탄 용액의 제조단계;(b) 상기 (a)에서 얻은 수분산 폴리우레탄 용액 100 중량부에 계면활성제 2∼10 중량부를 가하고 혼합 교반하여 기계적으로 발포시킨 후 점증제를 가하여 30℃에서 7,000∼15,000cps로 점도를 조절하는 발포 혼합액의 준비단계;(c) 상기 (b)의 발포 혼합액을 이형지 위에 도포하고 열풍 건조시켜 시트상의 미세다공성 폴리우레탄 폼을 얻는 단계;(d) 상기 (a)에서 얻은 수분산 폴리우레탄 용액의 기포를 제거한 후 이를 상기 (c)에서 얻은 시트상 폴리우레탄 폼층 위에 도포하고 열풍건조시켜 외측에 무공형의 필름층을 형성시키는 단계; 및(e) 별도로 이형지(B)에 점착제를 도포하여 점착제층을 만들고, 상기 (d)에서 얻은 필름층이 형성된 폴리우레탄 폼의 이형지(A)를 제거한 후 이 제거면에 상기 이형지(B)상에 도포된 점착제층을 합지시키는 단계;를 포함하는 반창고용 필름의 제조방법.
- 제2항에 있어서, 상기 (c)에서 발포 혼합액을 이형지 위에 도포한 후 1차로 원적외선램프를 이용하여 이형지 뒷면과 폴리우레탄 발포 혼합액이 도포된 면을 건조시키고, 피막이 형성되면 2차로 80∼120℃에서 10∼60분 열풍 건조하는 것을 특징으로 하는 반창고용 필름의 제조방법.
- 제2항 또는 제3항에 있어서, 상기 폴리올은 2개의 수산기를 갖고 분자량이 500∼5,000인 폴리에틸렌옥사이드글리콜과 폴리프로필렌옥사이드글리콜을 몰비(mole ratio)로 4:6∼8:2로 혼합한 것이거나 또는 에틸렌옥사이드 함량이 40%∼80% 이상인 에틸렌옥사이드/프로필렌옥사이드 공중합체인 것을 특징으로 하는 반창고용 필름의 제조방법.
- 제4항에 있어서, 상기 잠재적 이온기를 갖는 화합물은 디메틸올프로피온산, 디메틸올부탄산 중에서 선택되는 것임을 특징으로 하는 반창고용 필름의 제조방법.
- 제5항에 있어서, 상기 이소시아네이트는 헥사메틸렌디이소시아네이트 또는 이소포론디이소시아네이트인 것을 특징으로 하는 반창고용 필름의 제조방법.
- 제2항 또는 제3항에 있어서, 상기 점증제는 폴리아크릴산나트륨, 알긴산프로필렌글리콜, 메틸셀룰로오스, 카르복시메틸셀룰로오스나트륨, 카르복시메텔셀룰로오스칼슘, 카르복시메틸스타치나트륨, 알긴산나트륨, 알긴산암모늄, 알긴산칼륨, 알긴산칼슘, 카제인나트륨, 구아검, 로커스트콩검, 잔탄검, 시클로덱스트린, 아라비아검, 알긴산, 젤란검, 카라기난, 카라야검, 카제인, 타라검, 타마린드검, 트라가칸스검, 펙틴, 글루코만난, 가티검, 아라비노갈락탄, 퍼셀레란, 풀루란, 글구코사민, 카르복시메틸셀룰로오스, 키틴, 키토산, 소듐알지네이트, 히아루론산 및 이들의 유도체로 구성된 군으로부터 선택된 1종 이상인 것을 특징으로 하는 반창고용 필름의 제조방법.
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KR1020070006483A KR100832009B1 (ko) | 2007-01-22 | 2007-01-22 | 미세다공성 폼층을 가진 반창고용 필름 및 그 제조 방법 |
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KR101613904B1 (ko) | 2015-04-03 | 2016-04-21 | 주식회사 원바이오젠 | 수분산 액상 드레싱제 조성물 및 그 제조방법 |
KR101723013B1 (ko) | 2016-08-04 | 2017-04-05 | 이승희 | 나노 섬유를 구비한 피부용 점착테이프 및 그 제조 방법 |
KR20180043160A (ko) * | 2016-10-19 | 2018-04-27 | 대가파우더시스템 주식회사 | 지혈용 분말의 제조 방법 |
CN107982578A (zh) * | 2017-12-15 | 2018-05-04 | 太原理工大学 | 纳米羟基磷灰石/环糊精基聚氨酯复合多孔骨组织工程支架材料的制备方法 |
KR20190075578A (ko) | 2017-12-21 | 2019-07-01 | 주식회사 엘지화학 | 항균 드레싱 필름용 조성물 및 항균 드레싱 필름 |
CN110433321A (zh) * | 2019-07-06 | 2019-11-12 | 张明 | 一种具有缓释抗菌的医用泡沫敷料的制备方法 |
KR20230003791A (ko) * | 2021-06-30 | 2023-01-06 | 주식회사 티앤엘 | 메이크업 지속성이 우수한 수성 폴리우레탄 필름 |
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KR101613904B1 (ko) | 2015-04-03 | 2016-04-21 | 주식회사 원바이오젠 | 수분산 액상 드레싱제 조성물 및 그 제조방법 |
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CN107982578B (zh) * | 2017-12-15 | 2021-04-13 | 太原理工大学 | 纳米羟基磷灰石/环糊精基聚氨酯复合多孔骨组织工程支架材料的制备方法 |
KR20190075578A (ko) | 2017-12-21 | 2019-07-01 | 주식회사 엘지화학 | 항균 드레싱 필름용 조성물 및 항균 드레싱 필름 |
CN110433321A (zh) * | 2019-07-06 | 2019-11-12 | 张明 | 一种具有缓释抗菌的医用泡沫敷料的制备方法 |
KR20230003791A (ko) * | 2021-06-30 | 2023-01-06 | 주식회사 티앤엘 | 메이크업 지속성이 우수한 수성 폴리우레탄 필름 |
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