Polyester polyols containing diels-alder or ene adducts
AssigneeStepan Company
InventorsRick Tabor, Chunhua Yao, Andrew Guo, Timothy L. Lambert, David J. Norberg
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Abstract
Polyester polyols containing adducts formed from Diels-Alder and Ene reactions are disclosed. Processes for making the polyester polyols and uses of the polyester polyols as polyurethane coatings, adhesives, sealants, elastomers, and foams are also disclosed. In some embodiments, the polyester polyols contain biorenewable adducts based on maleic anhydride and farnesene and have particular application in making rigid and flexible polyurethane or polyisocyanurate foams.
Claims7
A foam forming composition comprising at least one diisocyanate component, at least one polyisocyanate component, or mixtures thereof, and at least one polyester polyol component comprising the esterification reaction product of:
- (a) at least one aromatic acid based material, or at least one aliphatic carboxylic acid based material, or mixtures thereof;
- (b) at least one hydroxylated material;
- and
- (c) at least one adduct formed by a Diels-Alder reaction of farnesene or myrcene reacted with a dienophile selected from the group consisting of maleic anhydride, maleic acid, itaconic anhydride, and itaconic acid.
Dependencies are inferred from the claim text.