Sustainable Polyester Polyols and Uses Thereof
AssigneeHuntsman International LLC
InventorsKai Xi, Todd Bates, Annelies Vandevelde
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Abstract
The present disclosure provides an isocyanate-reactive hydrogen composition including an increased amount of a sustainable polyester polyol. The isocyanate-reactive hydrogen composition may be combined with a polyisocyanate composition to form a reaction system which can be reacted and expansion moulded to form a flexible foam. The flexible foam that is produced may be used in a variety of applications, such as in automotive and furniture seating.
Claims20
An isocyanate-reactive hydrogen composition comprising at least 15% by weight of a sustainable polyester polyol derived from (i) a thermoplastic polyester, (ii) a hydroxylated material, and (iii) a hydrophobic material wherein the sustainable polyester polyol has a primary hydroxyl content of at least about 30%, calculated on the number of primary and secondary hydroxyl groups in the polyester polyol and wherein the % by weight is based on the total weight of components containing an isocyanate reactive-hydrogen present in the composition.
A reaction system comprising (a) a polyisocyanate composition comprising an organic polyisocyanate and (b) an isocyanate-reactive composition comprising (b1) at least 15% by weight of a sustainable polyester polyol derived from (i) a thermoplastic polyester, (ii) a hydroxylated material, and (iii) a hydrophobic material wherein the sustainable polyester polyol has a primary hydroxyl content of at least about 30%, calculated on the number of primary and secondary hydroxyl groups in the polyester polyol and wherein the % by weight is based on the total weight of components containing an isocyanate reactive-hydrogen present in the composition, (b2) a first polyether polyol comprising polyether chains containing at least about 50% by weight ethylene oxide (EO), based on the total weight of the first polyether polyol and (b3) water.
Dependencies are inferred from the claim text.