Title:
【発明の名称】キレート化剤を含む光保護組成物
Document Type and Number:
Japanese Patent JP2897832
Kind Code:
B2
Abstract:
Non-sunscreen chelating agents (I) must give (a) at least 50% inhibition of Fe-catalysed hydroxyl radical formation in an in-vitro soln. radical assay based on ethylene prodn. from methional and/or (b) a 20% redn. in skin wrinkle grade in an in-vivo mouse skin wrinkling test. (I) is 2,6-pyridinedicarboxylic acid, 1,2-dimethyl-3-hydroxy-4-pyridone, 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)- 2(1H)-pyridone (Ia) or 6-cyclohexyl-1-hydroxy-4-methyl- 2(1H)-pyridone. The compsns. may also contain 1-20% of a sunscreen agent, 0.1-10% of an antiinflammatory agent and/or 1-5% tocopherol sorbate.
Inventors:
DONARUDO RIN BISETSUTO
RODONII DEIIN BUTSUSHU
RANJITSUTO CHATAAJII
RODONII DEIIN BUTSUSHU
RANJITSUTO CHATAAJII
Application Number:
JP26702088A
Publication Date:
May 31, 1999
Filing Date:
October 22, 1988
Export Citation:
Assignee:
PUROKUTAA ANDO GYANBURU CO ZA
International Classes:
A61K8/31; A61K8/33; A61K8/35; A61K8/36; A61K8/37; A61K8/40; A61K8/41; A61K8/44; A61K8/46; A61K8/49; A61K8/92; A61K8/97; A61K31/047; A61K8/00; A61K31/15; A61K31/19; A61K31/215; A61K31/34; A61K31/40; A61K31/415; A61K31/44; A61K31/47; A61K31/495; A61K31/53; A61P17/00; A61Q5/02; A61Q17/04; A61Q19/00; A61Q19/08; A61Q19/10; C09K3/00; C11D3/30; (IPC1-7): A61K7/48; A61K7/42; A61K31/15; A61K31/19; A61K31/215; A61K31/34; A61K31/40; A61K31/415; A61K31/44; A61K31/47; A61K31/495; A61K31/53
Domestic Patent References:
| JP50140462A | ||||
| JP61197506A | ||||
| JP533538A | ||||
| JP58113115A | ||||
| JP62108804A | ||||
| JP55157509A | ||||
| JP536432A |
Other References:
【文献】西独特許2517216(DE,A1)
【文献】西独特許3140954(DE,A1)
【文献】英国公開901648(GB,A)
【文献】西独特許3140954(DE,A1)
【文献】英国公開901648(GB,A)
Attorney, Agent or Firm:
Kazuo Sato (2 outside)