发明名称 |
ANTIHAZING AGENT FOR NONCRYSTALLINE CYCLOOLEFIN RESINS, RESIN COMPOSITIONS, AND OPTICAL ELEMENTS |
摘要 |
<p>An antihazing agent for noncrystalline cycloolefin resins which can inhibit the hazing of the resins due to fine cracking caused by environmental change, particularly, environmental change from high temperature and humidity atmosphere to ordinary temperature and humidity atmosphere without losing the characteristics inherent in the resins to keep the transparency of the resins and inhibit the light transmittance thereof from lowering; noncrystalline cycloolefin resin compositions containing the agent; and optical elements made from the compositions. A compound component containing a metal rosinate as the main component is used as the antihazing agent for noncrystalline cycloolefin resins. It is particularly preferable that the antihazing agent further contain one or more members selected from the group consisting of alkali metal salts, alkaline earth metal salts, and Group 12 metal salts.</p> |
申请公布号 |
EP1972657(A1) |
申请公布日期 |
2008.09.24 |
申请号 |
EP20060812179 |
申请日期 |
2006.10.30 |
申请人 |
POLYPLASTICS CO., LTD. |
发明人 |
KUNIMOTO, EIKI;MIYAZAKI, HIROTAKA;SERIZAWA, HAJIME |
分类号 |
C08L45/00;C08J5/00;C08K5/098;C08L65/00;G02B1/04;G02B5/18 |
主分类号 |
C08L45/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|