Patent · US Active

Hydrogel particles

US8652448B2 · kind B2 · utility

0Cited by

2References

23Claims

0Family size

Assignee

KAO CORPORATION · JP

Inventors

Yuka Onishi · Taga, JP
Kimikazu Fukuda · Wakayama, JP
Kazuo Matsuyama · Gamagori, JP
Koji Mine · Tokyo, JP

Key dates

Filing date	Dec 16, 2010
Grant date	Feb 18, 2014
Priority date	—
Expiry date	Dec 16, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J13/0065
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Hydrogel particles include: a continuous phase of non-crosslinked hydrogel; and a dispersed phase dispersed in the continuous phase. The dispersed phase includes a crystalline organic UV absorber and a solid fat having an organic value (OV) of 310 or more and an inorganic value (IV) of 130 or more on an organic conceptual diagram. The content of the crystalline organic UV absorber in the dispersed phase is 15-70 mass %.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.