Formaldehyde free binder compositions with urea-aldehyde reaction products
AssigneeJohns Manville
InventorKiarash Alavi
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Abstract
Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a reaction product of a urea compound and a polycarbonyl compound. Exemplary reaction products for the crosslinking agent may include the reaction product of urea and an α,β-bicarbonyl compound or an α,γ-bicarbonyl compound. Exemplary fiber-containing composites may include fiberglass insulation.
Claims3
A fiber-containing composite comprising glass fibers and a binder, wherein the binder comprises cured products from a binder composition comprising dextrose, 4,5-dihydroxyimidazolidin-2-one, and ammonium methanesulfonate.
Dependencies are inferred from the claim text.