KR20190135537A - 셀룰로오스아세테이트 입자, 화장품 조성물 및 셀룰로오스아세테이트 입자의 제조 방법 - Google Patents
셀룰로오스아세테이트 입자, 화장품 조성물 및 셀룰로오스아세테이트 입자의 제조 방법 Download PDFInfo
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- KR20190135537A KR20190135537A KR1020197034298A KR20197034298A KR20190135537A KR 20190135537 A KR20190135537 A KR 20190135537A KR 1020197034298 A KR1020197034298 A KR 1020197034298A KR 20197034298 A KR20197034298 A KR 20197034298A KR 20190135537 A KR20190135537 A KR 20190135537A
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- cellulose acetate
- plasticizer
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- 239000002245 particle Substances 0.000 title claims abstract description 192
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Abstract
Description
도 2 는 표면 평활도 (%) 의 평가 방법을 설명하는 도면이다.
Claims (11)
- 셀룰로오스아세테이트 입자로서,
상기 셀룰로오스아세테이트 입자는, 평균 입자경이 80 ㎚ 이상 100 ㎛ 이하, 및 진구도가 0.7 이상 1.0 이하, 표면 평활도가 80 % 이상 100 % 이하이고,
상기 셀룰로오스아세테이트의 아세틸 총 치환도가 0.7 이상 2.9 이하인, 셀룰로오스아세테이트 입자. - 제 1 항에 있어서,
상기 셀룰로오스아세테이트의 아세틸 총 치환도가 2.0 이상 2.6 미만인, 셀룰로오스아세테이트 입자. - 제 1 항 또는 제 2 항에 있어서,
상기 셀룰로오스아세테이트 입자가 가소제를 함유하고,
상기 가소제의 함유량이, 상기 셀룰로오스아세테이트 입자의 중량에 대해, 2 중량% 이상 40 중량% 이하인, 셀룰로오스아세테이트 입자. - 제 3 항에 있어서,
상기 가소제가, 시트르산계 가소제, 글리세린에스테르계 가소제, 아디프산계 가소제, 및 프탈산계 가소제로 이루어지는 군에서 선택되는 적어도 1 이상인, 셀룰로오스아세테이트 입자. - 제 1 항 내지 제 4 항 중 어느 한 항에 기재된 셀룰로오스아세테이트 입자를 함유하는, 화장품 조성물.
- 아세틸 총 치환도가 0.7 이상 2.9 이하인 셀룰로오스아세테이트와 가소제를 혼합하여, 상기 가소제가 함침된 셀룰로오스아세테이트를 얻는 공정,
상기 가소제가 함침된 셀룰로오스아세테이트와 수용성 고분자를 200 ℃ 이상 280 ℃ 이하에서 혼련하여, 상기 가소제가 함침된 셀룰로오스아세테이트를 분산질로 하는 분산체를 얻는 공정, 및
상기 분산체로부터 상기 수용성 고분자를 제거하는 공정을 포함하는, 셀룰로오스아세테이트 입자의 제조 방법. - 제 6 항에 있어서,
상기 혼합은, 상기 셀룰로오스아세테이트와 상기 가소제를, 20 ℃ 이상 200 ℃ 미만의 범위에서 혼합한 후, 용융 혼련하는 것인, 셀룰로오스아세테이트 입자의 제조 방법. - 제 6 항 또는 제 7 항에 있어서,
상기 가소제가, 시트르산계 가소제, 글리세린에스테르계 가소제, 아디프산계 가소제, 및 프탈산계 가소제로 이루어지는 군에서 선택되는 적어도 1 이상인, 셀룰로오스아세테이트 입자의 제조 방법. - 제 6 항 또는 제 7 항에 있어서,
상기 가소제가, 시트르산트리에틸, 시트르산아세틸트리에틸, 시트르산아세틸트리부틸, 트리아세틴, 및 아디프산디이소노닐로 이루어지는 군에서 선택되는 적어도 1 이상인, 셀룰로오스아세테이트 입자의 제조 방법. - 제 6 항 또는 제 7 항에 있어서,
상기 가소제가, 시트르산아세틸트리에틸, 트리아세틴, 디아세틴, 및 프탈산디에틸로 이루어지는 군에서 선택되는 적어도 1 이상인, 셀룰로오스아세테이트 입자의 제조 방법. - 제 6 항 내지 제 10 항 중 어느 한 항에 있어서,
상기 수용성 고분자가, 폴리비닐알코올 또는 열가소성 전분인, 셀룰로오스아세테이트 입자의 제조 방법.
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