IRREGULAR-SHAPED HOLLOW MICROPARTICLE METHOD FOR PRODUCING SAME AND COSMETIC MATERIAL AND RESIN COMPOSITION CONTAINING IRREGULAR-SHAPED HOLLOW MICROPARTICLE

摘要

resin molded article in the total light transmittance and light diffusibility of the optical properties of the gailcheung the increase, and feeling in the cosmetics, soft focus property and enhanced persistence of gailcheung and the like, a hollow release fine particles that can respond sufficiently to the advancement of recent needs, and provides a method of manufacturing the same and its use. Surface has a plurality of recesses (21) to (11), to have a single hollow portion 41, the inner 31 and the surface 11 and the hollow portion 41, a major axis (L ₁ ) as a hollow release fine particles on the spindle as a whole has been communicating via the following one class left 51 direction, the average value of the long diameter (L ₁ ) 0. 1~30 , minor axis (L ₂ ) of the average / long diameter (L ₁ ) = 0. The average value of 3~0. 8 was used to release the hollow particles, characterized in. ;