摘要:
Ternary mixtures, particularly suitable for removing oily substances having both an hyrogenated and fluorinated or mixed basis, essentially consisting of: (a) water; (b) terbutanol; (c) a fluoropolyoxyalkylene having hydrogenated end groups and/or hydrogenated repetitive units. Such mixtures have high flash point, are non toxic and with null depleting potential of the ozone and show a ternary diagram characterized by a wide monophasic zone, wherein the three components form limpid and stable solutions.
摘要:
Compositions utilized to remove traces of organic solvents and/or oils from the surfaces of components comprising:
i) perfluoropolyethers; ii) fluorinated additive having a structure selected from the following:
T-OR f (CFY)-L (I)
L-CF 2 OR f CF 2 -L (II)
with L= X-CH 2 CH 2 (OCH 2 CH 2 ) n B wherein X=CH 2 O, CH 2 NR'', CONR'', CH 2 OCH 2 CH 2 NR'', CH 2 OCOCH 2 O; B= OH, SH, NHR'', OCH 3 , OCOCH 3 ; with R''= H, alkyl C 1-3 ; Y= CF 3 or F; T is selected among -CF 3 , -C 2 F 5 , -C 3 F 7 , ClCF 2 CF(CF 3 )-, CF 3 CFClCF 2 -, ClCF 2 CF 2 -, ClCF 2 -; R f is a perfluoropolyether chain, a perfluoroalkyl or a hydrofluoroalkyl.
摘要翻译:用于从组分表面除去痕量有机溶剂和/或油的组合物,包括:i)全氟聚醚; ii)具有选自以下结构的氟化添加剂:具有L = X-CH 2 CH 2(OCH 2 CH 2)n B的T-ORf(CFY)-L L-CF 2 OR f CF 2 -L,其中X = CH 2 O,CH 2 NR“,CONR”,CH 2 OCH 2 CH 2 NR' ',CH2OCOCH2O; B = OH,SH,NHR“,OCH 3,OCOCH 3; 其中R“= H,烷基C1-3; Y = CF3或F; T选自-CF 3,-C 2 F 5,-C 3 F 7,ClCF 2 CF(CF 3) - ,CF 3 CFClCF 2 - ,ClCF 2 CF 2 - ,ClCF 2 - ; Rf是全氟聚醚链,全氟烷基或氢氟烷基。
摘要:
Ternary mixtures, particularly suitable for removing oily substances having both an hyrogenated and fluorinated or mixed basis, essentially consisting of: (a) water; (b) terbutanol; (c) a fluoropolyoxyalkylene having hydrogenated end groups and/or hydrogenated repetitive units. Such mixtures have high flash point, are non toxic and with null depleting potential of the ozone and show a ternary diagram characterized by a wide monophasic zone, wherein the three components form limpid and stable solutions.