申请人:MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
公开号:EP0473871A2
公开(公告)日:1992-03-11
A fluorine-containing compound represented by the general formula [I]:
wherein Rf is a fluoroalkyl ether end group having 5 to 50 carbon atoms, R1 is an aliphatic alkyl end group or an aliphatic alkenyl end group, R2 is an aliphatic alkylene group or an aliphatic polyalkylene oxide group which have no or one or more carbon atoms, each of R3 and R4 is an aliphatic alkylene group having no or one or more carbon atoms, X is a connecting group selected from the group consisting of
(wherein R5 is an aliphatic alkylene group having no or one or more carbon atoms, and R6 is a hydrogen atom or an aliphatic alkyl group having 1 to 12 carbon atoms), each of W and Y is connecting group selected from the group consisting of
(wherein R7 is a hydrogen atom or a methyl group), Z is a connecting group selected from the group consisting of
and each of 1, m and n is zero or 1. There are disclosed a fluorine-containing compound of a specific structure which has in the molecule a fluoroalkyl ether end group, an aliphatic hydrocarbon end group and a carboxyl end group, and has a molecular weight of hundreds to about 3,000; and a process for producing the fluorine-containing compound. This fluorine-containing compound can be utilized in magnetic recording media in the form of a lubricant composition.
由通式[I]表示的含氟化合物:
其中 Rf 是具有 5 至 50 个碳原子的氟烷基醚端基,R1 是脂肪族烷基端基或脂肪族烯基端基,R2 是不含碳原子或含一个或多个碳原子的脂肪族亚烷基或脂肪族聚氧化烯基,R3 和 R4 各是不含碳原子或含一个或多个碳原子的脂肪族亚烷基,X 是选自下列组的连接基团: R5 是不含碳原子或含一个或多个碳原子的脂肪族亚烷基,R6 是氢原子或脂肪族聚氧化烯基,R7 是不含碳原子或含一个或多个碳原子的脂肪族聚氧化烯基,R8 是不含碳原子或含一个或多个碳原子的脂肪族聚氧化烯基。
(其中 R5 为无碳原子或有一个或多个碳原子的脂族亚烷基,R6 为氢原子或有 1 至 12 个碳原子的脂族烷基),W 和 Y 各为选自以下组的连接基团
(其中 R7 是氢原子或甲基),Z 是选自以下组别的连接基团
1、m 和 n 中的每一个均为 0 或 1。本发明公开了一种具有特定结构的含氟化合物,其分子中具有氟烷基醚端基、脂肪族烃端基和羧基端基,分子量在数百至约 3,000 之间;还公开了一种生产该含氟化合物的工艺。这种含氟化合物可以润滑剂组合物的形式用于磁记录介质中。