Polyurethane foam
AssigneeEdiltec S.r.l.
InventorClaudio Chittolini
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Abstract
A polyurethane or polyisocyanurate foam is derived from a mixture comprising a crude isocyanate component and a polyol component which contains all or some of the following products in a homogeneous mixture: polyols, catalysts, surfactants, water, flame-retardants, expanding agents, fillers, dyes and pigments, in which the expanding agents comprise a pentane component associated with a dialkanolamide derived from fatty or oily substances of vegetable origin.
Claims6
A method of making polyurethane foam, said method comprising mixing an isocyanate component and a polyol component, wherein said polyol component includes a pentane and a dialkanolamide derived from oily or fatty substances of vegetable origin, wherein said dialkanolamide is present in an amount of at least 5% by weight based on the weight of the polyol component, and wherein the solubility of the pentane in the polyol component is enhanced due to the presence of the dialkanolamide.
A method of making polyurethane foam, said method comprising mixing an isocyanate component and a polyol component, wherein said polyol component includes a pentane and a dialkanolamide derived from oily or fatty substances of vegetable origin, wherein said dialkanolamide is present in an amount of at least 5% by weight based on the weight of the polyol component and in a weight ratio of 1:1 to 1:2 with respect to said pentane, and wherein the solubility of the pentane in the polyol component is enhanced due to the presence of the dialkanolamide.
Dependencies are inferred from the claim text.