发明名称 |
Diphosphinic acid esters and process for making same |
摘要 |
Di-phosphinic acid esters of the formula WHEREIN R represents saturated, open-chain alkylene having from 1 to 15 carbon atoms, phenylene, biphenylene or phenylalkylene, R1 and R2 represent alkyl or cycloalkyl groups, as well as phenyl or benzyl and R3 represents saturated, open-chain alkylene and n is from 1 to 30, are described as well as suitable processes for the preparation of the di-phosphinic acid ester named and their use for flame-proofing polyesters.
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申请公布号 |
US3875263(A) |
申请公布日期 |
1975.04.01 |
申请号 |
US19730380743 |
申请日期 |
1973.07.19 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
HERWIG, WALTER;KLEINER, HANS-JERG |
分类号 |
C08L67/00;B01J31/00;C07B61/00;C07F9/32;C08G63/692;C08G79/00;C08G79/02;C08G79/04;C08K5/00;C08K5/53;(IPC1-7):C07F9/46 |
主分类号 |
C08L67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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