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发明名称
VERFAHREN ZUR VERHINDERUNG DER VERFAERBUNG ZWEIWERTIGER PHENOLE
摘要
Dihydric phenol is effectively prevented from discoloration by mixing the dihydric phenol with 0.00001 to 0.1% by weight of hydrocarboxylic acid on the basis of the dihydric phenol.
申请公布号
DE3021453(A1)
申请公布日期
1980.12.18
申请号
DE19803021453
申请日期
1980.06.06
申请人
SUMITOMO CHEMICAL CO.,LTD.
发明人
TAKENAKA,MASAAKI;HARADA,HARUHISA;MAKI,HIROSHI;SASAKI,SHIGERU
分类号
C07C27/00;C07C37/88;C07C39/08;C07C67/00;(IPC1-7):C07C37/88
主分类号
C07C27/00
代理机构
代理人
主权项
地址
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