Isocyanate-based polymer foams with nano-scale materials
AssigneeHoneywell International Inc.
InventorsZhen Zhu, David Williams, Caroline Bibb
Life of this patent
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Abstract
Isocyante-based polymer foams containing functionalized nano-scale materials in which the functional groups are OH, NH2, COOH or NCO groups. The incorporation of such functionalized nano-scale materials into the isocyanate-based polymer foams provides foams with improved properties such as insulation values, mechanical properties and flame retardancy performance properties, including but not limited to k-factor and dimensional stability.
Claims26
An isocyanate-based formulation for forming a isocyanate-based foam, said formulation containing functionalized nano-scale material, wherein the nano-scale material is functionalized with functional groups selected from OH, NH2, COOH and NCO functional groups.
An isocyanate-based polymeric foam containing functionalized nano-scale material, wherein the nano-scale material is functionalized with functional groups selected from OH, NH2, COOH and NCO functional groups.
A polyol preblend for producing an isocyanate-based polymeric foam formulation, said polyol preblend containing polyol and functionalized nano-scale material, wherein the nano-scale material is functionalized with functional groups selected from OH, NH2, COOH and NCO functional groups.
A process for producing an isocyanate-based polymeric foam comprising reacting one or more polyols with one or more polyisocyanates and a blowing agent in the presence of functionalized nano-scale material, wherein the functionalized nano-scale material is functionalized with functional groups selected from the group consisting of OH, NH2, COOH and NCO groups.
Dependencies are inferred from the claim text.