PERFLUOROPOLYETHERS AND PROCESSES THEREFOR AND THEREWITH
摘要
A perfluoropolyether, a composition comprising the perfluoropolyether, a process for producing the perfluoropolyether, and a process for improving the thermostability of grease or lubricant are provided. The perfluoropolyether comprises (1) perfluoroalkyl radical end groups in which the radical has at least 3 carbon atoms per radical and is substantially free of perfluoromethyl and perfluoroethyl end groups or (2) at least one bromine or iodine atom at the primary position of the perfluoropolyether.
申请公布号
WO0206375(A3)
申请公布日期
2002.10.10
申请号
WO2001US22817
申请日期
2001.07.19
申请人
E.I. DUPONT DE NEMOURS AND COMPANY;HOWELL, JON, L.;PEREZ, ERIK, WILLIAM;WATERFELD, ALFRED;FRIESEN, CHADRON, MARK;THRASHER, JOSEPH, STUART
发明人
HOWELL, JON, L.;PEREZ, ERIK, WILLIAM;WATERFELD, ALFRED;FRIESEN, CHADRON, MARK;THRASHER, JOSEPH, STUART