摘要:
The present invention relates to a method for producing polyether polyols by means of catalytic ring-opening polymerization, wherein at least one cyclic precatalyst compound containing nitrogen is used.
摘要:
The present invention relates to a process for the continuous production of polyether alcohols by catalyzed addition of at least one alkylene oxide to at least one hydrogen-functional starter compound, wherein at least one catalyst exhibits the structural element R1/R2C=N-R3.
摘要:
The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein at least one N-heterocyclic compound in the presence of at least one Zerevitinov-active compound Z1 is exposed in a step (i) to a temperature of at least 80°C for a period of at least 30 seconds, and the monomer M is added and reacted in a step (ii).
摘要:
This invention relates to a process for the continuous production of polyether polyols, polyether polyols produced by the inventive continuous process and their use in polyurethane applications.
摘要:
This invention relates to a process for the continuous production of polyether polyols, polyether polyols produced by the inventive continuous process and their use in polyurethane applications.