Patent ID: 9334213
Filing Date: 2016-05-10
CPC Classification: C07C,C08G

Claim Text:
1. A process for preparing an alkoxylated derivative of a (per)fluoropolyether (PFPE) alcohol, the process comprising: 1) separately providing a mixture [M1], comprising a PFPE alcohol and a catalytic amount of the corresponding alkoxide; 2) bringing into contact mixture [M1] with a boric acid triester of the same PFPE alcohol in an amount such that the molar ratio between the PFPE alkoxide and the boric acid triester is at least 1, to obtain a mixture [M2]; 3) contacting mixture [M2] with a catalytic amount of an iodine source to obtain a mixture [M3]; 4) treating mixture [M3] with an alkoxylating agent to provide a mixture [M4] containing an alkoxylated derivative of the PFPE alcohol.