FORMALDEHYDE FREE BINDER COMPOSITIONS WITH UREA-ALDEHYDE REACTION PRODUCTS

摘要

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.

主权项

1. A fiber-containing composite comprising:
woven or non-woven fibers; and a cured binder formed from a binder composition comprising: reducing sugar; and a crosslinking agent comprising a reaction product of a urea compound and an polycarbonyl compound, wherein the reaction product is the exclusive crosslinking agent for the reducing sugar.