Title:
新規な光安定剤、紫外線吸収剤、及び、日焼け止め組成物を光安定化する方法
Document Type and Number:
Japanese Patent JP4452621
Kind Code:
B2
Abstract:
Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives, and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene. Synergistic combinations of the polymer with (1) diesters or polyesters of a naphthalene dicarboxylic acid, or (2) oxybenzone enhance the photostability of sunscreen compositions containing a photodegradable sunscreen active compound, such as avobenzone.
Inventors:
Bonda, Craig A.
Anna Pavlovic
Shah, Woolville Bee.
Anna Pavlovic
Shah, Woolville Bee.
Application Number:
JP2004538459A
Publication Date:
April 21, 2010
Filing Date:
September 17, 2003
Export Citation:
Assignee:
Hallstar Innovations Corporation
International Classes:
A61K8/00; A61K8/40; A61K8/35; A61K8/37; A61K31/277; A61P17/18; A61Q17/04; C08G63/54; C08G63/547; C08G63/91; C08K5/00; C08K5/103; C08L67/02; C08L67/06; C08L67/07; C08K5/315
Foreign References:
| US6444195 | ||||
| WO2000057850A1 | ||||
| WO2001052810A1 |
Attorney, Agent or Firm:
Shinji Noda
Yoshihiro Tsunoda
Yoshihiro Tsunoda