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AssigneeArkema Inc.
InventorsBenjamin Bin Chen, Joseph S. Costa, Laurent Abbas, Sri R. Seshadri, Gary S. Smith
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A polyol pre-mix composition includes a blowing agent having a halogenated hydroolefin, a polyol, a catalyst composition, and an antioxidant. The antioxidant may be, for example, a benzene diol or a benzene triol or other polyhydroxy-substituted aromatic compound, which is optionally substituted with one or more substituents such as alkyl groups. A two-part system for producing a thermosetting foam blend includes (a) a polyisocyanate and, optionally, one or more isocyanate compatible raw materials; and (b) the polyol pre-mix composition. A method for producing a thermosetting foam blend includes combining: (a) a polyisocyanate; and (b) the polyol pre-mix composition.
A polyol foam B-side pre-mix composition comprising a blowing agent comprising a halogenated hydroolefin, a polyol, a catalyst composition comprising an amine catalyst, a non-amine catalyst, or catalyst mixture thereof, and a primary antioxidant chosen from the group consisting of substituted and unsubstituted 1,2-benzenediols, substituted and unsubstituted 1,3-benzenediols and substituted and unsubstituted benzene triols and mixtures thereof wherein said polyol B-side foam premix forms a thermosetting foam when mixed with a polyol foam A-side premix.
Dependencies are inferred from the claim text.