Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 1, 2011
Patent Application Number
12088208
Date Filed
November 30, 2006
Patent Primary Examiner
Patent abstract
The present invention provides a catalyst comprising a mixture of at least one acid-activated sheet silicate with a transition metal oxide of groups 8 and/or 9 of the Periodic Table of the Elements and also a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers, in which tetrahydrofuran is polymerized in the presence of at least one telogen and/or comonomer over such a catalyst.
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