发明名称 |
USE OF ESTERS OF BORIC ACID TO STABILIZE PHOSPHITE-FREE POLYCARBONATES, AND THE OBTAINED STABILIZED POLYCARBONATE MOULDING COMPOSITIONS |
摘要 |
Phosphite-free polycarbonate molding compositions are provided which contain either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound, in amounts between about 0.01 and 1% by weight, relative to the weight of pure polycarbonate resin. A process for stabilizing phosphite-free polycarbonate compositions to light and heat without impairing their resistance to hydrolysis is also provided by the incorporation of either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound. |
申请公布号 |
EP0001823(A3) |
申请公布日期 |
1979.05.30 |
申请号 |
EP19780101260 |
申请日期 |
1978.10.28 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
EIMERS, ERICH, DR.;DHEIN, ROLF, DR.;COHNEN, WOLFGANG, DR. |
分类号 |
C08L69/00;C08K3/00;C08K5/55 |
主分类号 |
C08L69/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|