| 发明名称 |
Bloc copolymer compositions and process for the preparation thereof. |
| 摘要 |
<p>An aromatic vinyl compound-conjugated diene block copolymer composition having improved light stability comprises a mixture of a 2-(hydroxyphenyl)-substituted benzotriazole and an ester of a sterically hindered 4-hydroxypiperidine, 0.3-5 parts by weight per 100 pbw of block copolymer being present and the weight ratio benzotriazole to ester being 20:80 to 80:20.</p> |
| 申请公布号 |
EP0326717(A1) |
申请公布日期 |
1989.08.09 |
| 申请号 |
EP19880200170 |
申请日期 |
1988.02.01 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
SAKAGAMI, TOSHINORI;ITO, HISAHARU;NAGANO, MASANOBU;MIYACHI, TAKUMI |
| 分类号 |
C08K5/3475;C08K5/34;C08K5/3435;C08L53/00;C08L53/02 |
主分类号 |
C08K5/3475 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
