公开(公告)号：EP0409840A4

公开(公告)日：1991-09-04

申请号：EP89902346

申请日：1989-02-13

Applicant: ATOCHEM NORTH AMERICA, INC.

Inventor： MAC LEAY, RONALD, E. ,  MYERS, TERRY, N.

IPC: A61K8/00 ,  A61K8/42 ,  A61K8/49 ,  A61Q17/04 ,  C07C243/28 ,  C07C323/41 ,  C07D249/20 ,  C07D401/12 ,  C07D403/10 ,  C07D403/12 ,  C08F8/30 ,  C08K5/20 ,  C08K5/22 ,  C08K5/25 ,  C08K5/3472 ,  C08K5/3475 ,  C08K5/36 ,  C09K3/00 ,  C09K15/30 ,  C07C109/10 ,  C07D207/12 ,  C07D249/16

CPC classification number: C07D403/10 ,  C07C243/28 ,  C07D249/20 ,  C08K5/20 ,  C08K5/3475 ,  C09K15/30

Abstract: Hydrazide functionalized benzotriazole and oxanilide ultraviolet absorbers (formulas I and II) useful for stabilizing coreactive or inert polymeric compositions and novel intermediates (formula III used to make certain types of compounds of formula I) are disclosed and have general formulas (I) or (II) or (III), wherein R?1, R2, R3, R4, R5, R6, R7, R8, R9¿, X, Y, all substituents thereof, and n are set forth in the summary of the invention.

公开(公告)号：EP0410970A4

公开(公告)日：1991-07-31

申请号：EP89902901

申请日：1989-02-13

Applicant: ATOCHEM NORTH AMERICA, INC.

Inventor： KAZMIERCZAK, ROBERT, T. ,  MAC LEAY, RONALD, E.

IPC: C07D211/56 ,  C07D211/58 ,  C07D211/60 ,  C07D211/92 ,  C07D211/94 ,  C07D401/04 ,  C07D407/06 ,  C08K5/34 ,  C08K5/3432 ,  C08K5/3435 ,  C08L23/00

CPC classification number: C07D401/04 ,  C07D211/58 ,  C08K5/3435 ,  C08L23/12

Abstract: N-(2,2,6,6-tetraalkyl-4-piperidinyl)amine-hydrazides of dicarboxylic acids contain a light stabilizing group, a heat stabilizing group, and a reactive hydrazide functionality in the same molecule. The reactive stabilizers are prepared by reacting 4-amino-2,2,6,6-tetraalkylpiperidines with diesters (or mono ester acid chlorides) of dicarboxylic acids or dialkyl itaconates followed by hydrazinolysis of the ester group of the intermediate mono ester-amide. The compounds are useful for introducing permanent heat and light stability to coreactive polymers or copolymers. They are also useful in the stabilization of inert polymeric systems against the degradative effects of heat and light when merely mixed with, rather than reacted with, the polymers for which stabilization is sought.