Title:
【発明の名称】ビスベンゾフラン-2-オン
Document Type and Number:
Japanese Patent JP3062977
Kind Code:
B2
Abstract:
Compounds of formula I (1) wherein R1 is hydrogen, C1-C8alkyl, C5-C8cycloalkyl or C7-C9phenylalkyl, A1 and A4 are phenyl, or phenyl which is substituted by 1 to 3 radicals R3, which radicals R3 are each independently of one another selected from the group consisting of C1-C4alkyl, C1-C18alkoxy, C3-C4alkenyloxy, C7-C9phenylalkoxy, C5-C8cycloalkoxy, C1-C18alkanoyloxy, C3-C18alkenoyloxy, benzoyloxy, phenoxy and hydroxy, m is 1 or 2, A2 and A3, together with the linking carbon atom, form a C5-C7cycloalkylidene ring which is unsubstituted or substituted by 1 to 3 C1-C4alkyl groups, are very suitable for stabilising organic materials against thermal, oxidative or light-induced degradation.
Inventors:
Peter Nesfadoba
Carla Atinger-Sorat
Carla Atinger-Sorat
Application Number:
JP19757492A
Publication Date:
July 12, 2000
Filing Date:
July 01, 1992
Export Citation:
Assignee:
Ciba Specialty Chemicals Holding Incorporated
International Classes:
C07D307/83; C07D317/54; C07D407/14; C08K5/15; C08K5/1535; C09K15/06; D06M13/02; D06M13/137; D06M13/144; D06M13/152; D06M13/224; D06M13/228; D06M13/244; D06M13/282; D06M13/292; D06M101/00; D06M101/16; D06M101/18; D06M101/30; (IPC1-7): C07D307/83; C07D317/54; C08K5/151; C09K15/06; D06M13/228
Domestic Patent References:
| JP55501181A |
Attorney, Agent or Firm:
Nobuo Kaida (1 person outside)