Title:
COMPOSITION CONTAINING SUBSTITUTED 1*55 DIAZACYCLOALKANE AND 22KETOO 1*55DIAZACYCLOALKANE BEING STABLE TO ULTRAVIOLET RAY
Document Type and Number:
Japanese Patent JPS5456988
Kind Code:
A
Abstract:
Novel polysubstituted 1,5-diazacycloalkanes and polysubstituted 2-keto-1,5- diazcycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic compounds of this invention have (a) a fixed three-carbon bridge between the N' and N5 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon stoms, (b) an N-adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable.Compositions containing (a) the polysubstituted 1,5-diazacycloalkanes and polysubstituted 2-keto-1,5- diazacycloalkanes of this invention, and (b) prior art polysubstituted 1,5-diazacycloalkanes and polysubstituted 2-keto-1,5-diazscycloalkanes, exhibit excellent stability to UV light.A novel synthesis for preparing polysubstituted 2- keto-1,5- diazacycloalkanes is disclosed.
Inventors:
JIYON TAAYUAN RAI
PIYONGU NAE SON
PIYONGU NAE SON
Application Number:
JP11522378A
Publication Date:
May 08, 1979
Filing Date:
September 21, 1978
Export Citation:
Assignee:
GOODRICH CO B F
International Classes:
C07D243/08; C07D243/10; C07D243/12; C07D245/02; C08K5/3442; C09K15/30; (IPC1-7): C07D243/10; C07D245/02; C09K15/32
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