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1. 发明申请

WO2010130625A1 PROCESS FOR THE PURIFICATION OF POLYOL PFPE DERIVATIVES 审中-公开
标题翻译：多元醇PFPE衍生物的纯化方法
公开(公告)号：WO2010130625A1
公开(公告)日：2010-11-18
申请号：PCT/EP2010/056177
申请日：2010-05-06
申请人： SOLVAY SOLEXIS S.P.A. , VEZZULLI, Graziano Giuseppe , GAVEZOTTI, Piero , MUTTA, Fabrizio , TONELLI, Claudio Adolfo Pietro
发明人： VEZZULLI, Graziano Giuseppe , GAVEZOTTI, Piero , MUTTA, Fabrizio , TONELLI, Claudio Adolfo Pietro
IPC分类号： C08G65/30
CPC分类号： C08G65/007 , C08G65/30
摘要： The invention pertains to a process for the purification of a polyol (per)fluoropolyether derivative [polyol (P)], said polyol (P) comprising one or more hydroxyl (per)fluoropolyether derivatives [PFPE (OH)] comprising at least one (per)fluoropolyoxyalkylene chain (chain R f ) and at least one end-group having formula -CF 2 CH 2 OCH 2 CH(OH)CH 2 OCH 2 CH(OH)CH 2 OH (t3), from a mixture of hydroxyl (per)fluoropolyether derivatives [mixture (M)], said mixture (M) comprising said polyol (P) and at least one hydroxyl (per)fluoropolyether derivative [PFPE (OH)] different from polyol (P) and comprising at least one (per)fluoropolyoxyalkylene chain (chain Rf) and at least one end-group selected from those having formulae -CF 2 CH 2 OH (t 1 ) and -CF 2 CH 2 OCH 2 CH(OH)CH 2 OH (t 2 ), said process comprising the following steps: step 1 : reacting the mixture (M) with a ketone and/or an aldehyde so as to yield corresponding mixture of cyclic ketal/acetal (per)fluoropolyether derivatives [PFPEs (OH) p ] [protected mixture (P)]; step 2: molecular distillation of the protected mixture (P) so as to isolate a protected product heavy residue [product (P r )]; step 3: hydrolyzing the product (P r ) so as to yield a deprotected product [product (P d )]; step 4: distillation under reduced pressure of the product (P d ) so as to obtain polyol (P).
摘要翻译：本发明涉及纯化多元醇（全）氟聚醚衍生物[多元醇（P）]的方法，所述多元醇（P）包含一种或多种羟基（全）含氟聚醚衍生物[PFPE（OH）]，其包含至少一种（（OH）CH 2 OH（t3）的至少一个末端基团，由羟基（全）氟代聚醚衍生物[混合物（M）]的混合物，所述混合物（P）和至少一种不同于多元醇（P）的羟基（全）氟聚醚衍生物[PFPE（OH）]并且包含至少一个（全）氟聚氧化烯链（链Rf）和至少一个末端 - 基团选自具有式-CF 2 CH 2 OH（t 1）和-CF 2 CH 2 OCH 2 CH（OH）CH 2 OH（t 2）的那些，所述方法包括以下步骤：步骤1：使混合物（M）与酮和/或醛反应，产生相应的环缩酮/缩醛（全）氟聚醚衍生物[PFPE（OH）p] [保护的混合物（P） ]。步骤2：保护的混合物（P）的分子蒸馏，以分离受保护的产物重残渣[产物（Pr）]; 步骤3：水解产物（Pr）以产生脱保护的产物[产物（Pd）]; 步骤4：在减压下蒸馏产物（Pd），得到多元醇（P）。

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