The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Sep. 22, 2005
Masafumi Miyamoto, Wakayama, JP;
Yasushi Sasaki, Wakayama, JP;
Toshiya Shimada, Wakayama, JP;
Shinobu Hiramatsu, Wakayama, JP;
Masafumi Miyamoto, Wakayama, JP;
Yasushi Sasaki, Wakayama, JP;
Toshiya Shimada, Wakayama, JP;
Shinobu Hiramatsu, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The invention provides a composite particle, a process for producing the same, and cosmetics containing the same The invention relates to composite particles containing a polyolefin-based resin having a crystallization degree of 80% or less and zinc oxide and obtained by hot melt microencapsulation or spray cooling, or composite particles containing a polyolefin-based resin having a crystallization degree of 80% or less and zinc oxide, wherein the degree of remaining zinc oxide in the particles is 50 wt % or more after being dipped for 1 hour in 0.5 mol/L hydrochloric acid solution at 25° C. (solution composition: water and ethanol in equal volumes), a process for producing the composite particles, and cosmetics containing the composite particles.