公开(公告)号：EP0494639A2

公开(公告)日：1992-07-15

申请号：EP92100147.5

申请日：1992-01-07

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Baron, Arthur Lawrence ,  Myers, Terry Ned

IPC: C08G18/38

CPC classification number: C08G18/285 ,  C08G18/3834

Abstract: Stabilized polyurethanes, polyureas and polyurethane-polyurea polymers having hindered amine light stabilizers (HALS) bonded thereto by means of a hydrazide functionality attached to the HALS are provided. The synergistic effect of a second amide functional group in the HALS-hydrazide provides improved photostabilization efficiency as compared to HALS-hydrazides of the prior art.

Abstract translation: 设置键合到其稳定的聚氨酯，聚脲和聚氨酯 - 聚脲聚合物具有受阻胺光稳定剂（HALS），通过酰肼功能上连接到HALS手段。 第二酰胺官能团在HALS酰肼的协同效应提供了改进的效率，因为光稳定相比于现有技术的HALS酰肼。

公开(公告)号：EP0494639A3

公开(公告)日：1993-04-14

申请号：EP92100147.5

申请日：1992-01-07

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Baron, Arthur Lawrence ,  Myers, Terry Ned

IPC: C08G18/38

CPC classification number: C08G18/285 ,  C08G18/3834

Abstract: Stabilized polyurethanes, polyureas and polyurethane-polyurea polymers having hindered amine light stabilizers (HALS) bonded thereto by means of a hydrazide functionality attached to the HALS are provided. The synergistic effect of a second amide functional group in the HALS-hydrazide provides improved photostabilization efficiency as compared to HALS-hydrazides of the prior art.