| 发明名称 |
PHOSPHONITE COMPOUND, METHOD FOR PURIFYING THE SAME, CELLULOSE ESTER FILM USING THE SAME, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a phosphonite compound having a high purity and a high ability to prevent oxidative deterioration and discoloration by using a new reforming method. <P>SOLUTION: The phosphonite compound is represented by formula (1) (wherein R is a hydrogen atom or a methyl group; and R<SB>1</SB>and R<SB>2</SB>are each a hydrogen atom or a 1-5C alkyl group). <P>COPYRIGHT: (C)2008,JPO&INPIT |
| 申请公布号 |
JP2008143873(A) |
申请公布日期 |
2008.06.26 |
| 申请号 |
JP20060335674 |
申请日期 |
2006.12.13 |
| 申请人 |
KONICA MINOLTA OPTO INC |
发明人 |
IWAMOTO RYOHEI;SUZUKI TAKASHI |
| 分类号 |
C07F9/48;C08K5/5393;C08L1/10;G02B5/30;G02F1/1335 |
主分类号 |
C07F9/48 |
| 代理机构 |
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| 主权项 |
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