Stable modified polymer polyol dispersions
AssigneeRepsol, S.A.
InventorsCÉSAR MUÑOZ DE DIEGO, JOSÉ ROMÁN GALDÁMEZ PEÑA, VICTORIA ISABEL BLASCO GARCÉS, OLIVIER LEMOINE
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Abstract
Stable modified polymer polyol dispersions. The present disclosure relates to new compounds useful as dispersants and stabilisants for modified polymer polyol dispersions, the stable modified polymer polyols dispersions thus obtained and to polyurethane materials prepared from the modified polymer polyols dispersions herein disclosed.
Claims16
An alkoxysilane capped polyether polyol having from 1 to 8 hydroxyl groups per molecule and from 1 to 2 alkoxysilane groups per molecule, obtainable by a process comprising capping from 1 to 2 of the terminal hydroxyl groups of a polyether polyol having a functionality from 2 to 9 and an average molecular weight selected from 3000 to 25000 with a capping agent which is a compound having at least one alkoxysilane terminal group and at least one hydroxyl-reactive group;
- wherein the reaction of the capping agent with the polyether polyol is carried out in a molar ratio selected from 0.05 to 2.0 mole of capping agent per mole of polyether polyol.
Dependencies are inferred from the claim text.