发明名称 |
NITROGENOUS CONDENSATION PRODUCTS USED AS RETENTION AIDS IN PAPERMAKING |
摘要 |
Production of water-sol?ble crosslinked auxiliari?s for the papermaking industry by reacting(a) one equivalent of NH groups of a polyalkylene polyamine having from 15 to 500 alkyleneimine units with(b) from 0.001 to 0.08 mole of a reaction product obtained from a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin, in aqueous solution at a temperature of from 20.degree. to 100.degree.C. The viscosity of an aqueous solution containing 20% by weight of the crosslinked auxiliaries is from 300 to 1,500 centipoises (20.degree.C).
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申请公布号 |
US4066494(A) |
申请公布日期 |
1978.01.03 |
申请号 |
US19750594648 |
申请日期 |
1975.07.10 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
SCHARF, EMIL;FIKENTSCHER, ROLF;AUHORN, WERNER;STREIT, WERNER |
分类号 |
C08G73/00;C02F1/54;C08G;C08G65/26;C08G69/40;C08G73/02;C08G73/04;C08G81/00;C08G83/00;C08L79/02;D21C9/18;D21H17/54;D21H17/56;(IPC1-7):D21H3/48 |
主分类号 |
C08G73/00 |
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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