申请人:Klun P. Thomas
公开号:US20050143595A1
公开(公告)日:2005-06-30
A process for preparing fluorochemical monoisocyanates comprises reacting at least one fluorochemical alcohol represented by the formula C
n
F
2n+1
SO
2
NCH
3
(CH
2
)
m
OH, wherein n=2 to 5, and m=2 to 4, with 4,4′-diphenylmethane diisocyanate (MDI) in a solvent in which the resulting fluorochemical monoisocyanate is not soluble; wherein the molar ratio of fluorochemical alcohol:MDI is from about 1:1 to about 1:2.5.
制备氟化学单异氰酸酯的方法包括在溶剂中,将至少一种由公式CnF2n+1SO2NCH3(CH2)mOH表示的氟化学醇(其中n=2至5,m=2至4)与4,4'-二苯甲烷二异氰酸酯(MDI)反应,其中所得的氟化学单异氰酸酯不溶于溶剂;氟化学醇:MDI的摩尔比约为1:1至1:2.5。