公开(公告)号：US09334213B2

公开(公告)日：2016-05-10

申请号：US14651542

申请日：2013-12-04

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Pier Antonio Guarda ,  Gianfranco Spataro

IPC: C07C41/08 ,  C07C41/18 ,  C08G65/26 ,  C08G65/00 ,  C08G65/331 ,  C08G65/328

CPC classification number: C07C41/18 ,  C08G65/007 ,  C08G65/2609 ,  C08G65/2654 ,  C08G65/2687 ,  C08G65/2696 ,  C08G65/328 ,  C08G65/331 ,  C08G2650/48

Abstract: A convenient process for the manufacture of alkoxylated derivatives of PFPE alcohols is herein provided. The process envisages the use of a boron-based catalyst and an iodine source and is characterized in that a PFPE alkoxide is prepared separately, contacted with a boric acid triester of the same PFPE alcohol and finally submitted to alkoxylation in the presence of an iodine source. The process allows achieving an alkoxylation degree of at least 2 with high yields and under conditions that are convenient on an industrial scale.

Abstract translation: 本文提供了制备PFPE醇的烷氧基化衍生物的方便方法。 该方法设想使用硼基催化剂和碘源，其特征在于分别制备PFPE醇盐，与相同PFPE醇的硼酸三酯接触，最后在碘源存在下进行烷氧基化 。 该方法允许以高产率和在工业规模上方便的条件下实现至少2的烷氧基化度。

公开(公告)号：US20240368329A1

公开(公告)日：2024-11-07

申请号：US18575990

申请日：2022-06-23

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Ugo De Patto ,  Andrea Lotierzo ,  Pier Antonio Guarda

IPC: C08F293/00 ,  C08L53/00 ,  C10M107/38 ,  C10N40/02 ,  C10N40/06 ,  C10N40/08 ,  C10N40/14 ,  C10N40/30

Abstract: The present patent application relates to block copolymers comprising (per)fluoropolyether chains useful as lubricants and characterized by increased viscosity.