OILY COSMETIC

• Main Authors: ZUSHI HIROKAZU, TAMURA HIDEKO, FUJIOKA MASAHIRO, NANBU HIROMI, ASANO MOEKO
• Format: Patent
• Language: English; Japanese
• Published: 15.06.2017
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

PROBLEM TO BE SOLVED: To provide an oily cosmetic which has an excellent smooth feel, suppresses color migration and is improved in color durability.SOLUTION: There is provided an oily cosmetic comprising the following components (A), (B) and (C): (A) 1 to 50 mass% of a cellulose derivative having a cellulose skeleton in the main chain in which 45 to 95 mol% of total hydroxyl groups is substituted with a group -O-M-R (M represents CHor a carbonyl group C=O, R represents a linear or branched alkyl group having 3 to 40 carbon atoms or alkenyl group), (B) 5 to 80 mass% of a volatile hydrocarbon oil and (C) 5 to 50 mass% of an ester oil which is liquid at 25°C, wherein the mass ratio (B)/(C) of the component (B) to the component (C) is 0.7 to 9 and the shear viscosity of the entire bulk is 1500 Pa s at a shear rate of 0.1 sat 25°C.SELECTED DRAWING: None 【課題】滑らかな感触に優れるとともに、色移りが抑制され、色持ちが改善された油性化粧料を提供する。【解決手段】次の成分（Ａ）、（Ｂ）及び（Ｃ）：（Ａ）主鎖にセルロース骨格を有し、全水酸基の４５〜９５mol％が基−Ｏ-Ｍ-Ｒ（ＭはＣＨ2又はカルボニル基Ｃ＝Ｏを示し、Ｒは炭素数３〜４０の直鎖又は分岐鎖のアルキル基又はアルケニル基を示す）で置換されているセルロース誘導体 １〜５０質量％、（Ｂ）揮発性の炭化水素油 ５〜８０質量％、（Ｃ）２５℃で液状のエステル油 ５〜５０質量％を含有し、成分（Ｃ）に対する成分（Ｂ）の質量割合（Ｂ）／（Ｃ）が、０．７〜９であり、２５℃におけるせん断速度０．１ｓ-1のとき、バルク全体のせん断粘度が１５００Pa・s 以下である油性化粧料。【選択図】なし