Novel perfluoropolyether derivatives, and lubricants and magnetic recording medium using the same
申请人:SONY CORPORATION
公开号:EP0519406A2
公开(公告)日:1992-12-23
Novel perfluoropolyether derivatives are described which are obtained from perfluoropolyethers having a carboxyl group at one or both ends and monoamines or diamines. The derivative is useful as a lubricant owing to its significantly improved lubricity. The lubricity is shown under severe high or low temperature and humidity conditions over a long term. The derivative is especially useful as a lubricant for magnetic recording mediums of the coating and metal thin film types.
COMPOSITION CONTAINING COMPOUND HAVING DITHIOCARBONATE GROUP
申请人:Kyowa Yuka Co., Ltd.
公开号:EP1167458A1
公开(公告)日:2002-01-02
A composition comprising a compound having at least one 5-membered-ring dithiocarbonate group represented by general formula (I):
(in the formula, R1, R2, and R3 are identical or different, and represent a hydrogen atom or lower alkyl), and a secondary diamine represented by general formula (II):
(in the formula, X represents alkylene having 4 to 20 carbon atoms) or an enamine derivative thereof is useful for use in coating materials, adhesives, inks, sealants, sealing agents, or the like.