| 发明名称 |
Optical resin material having improved birefringence |
| 摘要 |
PCT No. PCT/JP85/00607 Sec. 371 Date Jul. 2, 1986 Sec. 102(e) Date Jul. 2, 1986 PCT Filed Nov. 1, 1985 PCT Pub. No. WO86/02653 PCT Pub. Date May 9, 1986.An optical resin material comprising at least two constituent units each having positive and negative main polarizability differences of at least 50x10-25 cm3 in terms of absolute values has small birefringence and good water absorbance, heat resistance and moldability.
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| 申请公布号 |
US4785053(A) |
申请公布日期 |
1988.11.15 |
| 申请号 |
US19860885566 |
申请日期 |
1986.07.02 |
| 申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
ITO, IKO;IMAI, SHOZABURO;ISOBE, MICHIHISA |
| 分类号 |
C08F212/00;C08F212/08;C08F220/00;C08F220/10;C08F220/14;C08F265/06;C08G63/00;C08G64/00;C08L23/00;C08L33/00;C08L33/02;C08L51/00;C08L51/02;C08L67/00;C08L69/00;C08L77/00;C08L101/00;G02B1/04;G11B7/24;G11B7/253;(IPC1-7):C08L69/00 |
主分类号 |
C08F212/00 |
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