Dispersion Composition For UV Blocking

• Main Authors: LEE SULHAE, JEONG SOON KYU, LEE BEOM ZOO, KANG KYUNGKYU, KIM SEUNG WOOK
• Format: Patent
• Language: English; Korean
• Published: 06.04.2021
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

The present invention relates to a dispersion composition for blocking ultraviolet rays to provide increased storage stability. According to the present invention, the dispersion composition comprises: silsesquioxane-based polymer particles including a structural unit represented by chemical formula 1; and oil. In the chemical formula 1, Ar_1 and Ar_2 are independently C6 to C20 aryl, aryls of Ar_1 and Ar_2 are independently substituted with C1 to C20 alkoxy, R_1, R_2, R_3, R_5, and R_8 are independently C1 to C20 alkoxy, R_4, R_6, and R_7 are independently C1 to C20 alkyl, L_1 and L_2 are independently a divalent linking group, and w, x, y and z are real numbers satisfying mole ratios of 0 < w < 1, 0 < x < 1, 0 < y < 1, 0 < z < 1, and w + x + y + z = 1. 본 발명에 따른 자외선 차단용 분산체 조성물은 하기 화학식1로 표시되는 구조단위를 포함하는 실세스퀴옥산계 중합체 입자 및 오일을 포함한다. [화학식1] JPEGpat00020.jpg41142 [상기 화학식1에서, Ar1 및 Ar2는 각각 독립적으로 C6-C20의 아릴이고, 상기 Ar1 및 Ar2의 아릴은 각각 독립적으로 C1-C20의 알콕시로 치환될 수 있고; R1, R2, R3, R5 및 R8은 각각 독립적으로 C1-C20의 알콕시이고; R4, R6 및 R7은 각각 독립적으로 C1-C20의 알킬이고; L1 및 L2는 각각 독립적으로 2가의 연결기이고; w, x, y 및 z는 몰분율로 0<w<1, 0<x<1, 0<y<1, 0<z<1을 만족하는 실수이고, w+x+y+z=1이다.]