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US 2014/0197349 A1Published application
Binder compositions and associated methods
AssigneeKnauf Insulation, Inc.
InventorClarence H. HELBING
Life of this patent
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Abstract
Disclosed are formaldehyde-free, thermally-curable, alkaline, aqueous binder compositions, curable to formaldehyde-free, water-insoluble thermoset polyester resins, and uses thereof as binders for non-woven fibers and fiber material.
Claims16
-25. (canceled)
A binder comprising
- a polyester polymer, the polyester polymer comprising a reaction product of a polycarboxylic acid component and a polymeric polyhydroxyl component in the presence of a catalyst, wherein a solution of the polycarboxylic acid component, the polymeric polyhydroxyl component, and the catalyst has an alkaline pH and the polycarboxylic acid component is a dicarboxylic acid, tricarboxylic acid, tetracarboxylic acid, or pentacarboxylic acid, or salts or anhydride derivatives thereof, or combinations thereof.
An insulation product comprising
- a formaldehyde-free polymeric binder composition in contact with mineral fibers, the formaldehyde-free polymeric binder comprising a product of a dried and cured alkaline aqueous solution, the solution comprising a polymeric polyhydroxyl component, a polycarboxylic acid component selected from a dicarboxylic acid, tricarboxylic acid, tetracarboxylic acid, or pentacarboxylic acid, and a catalyst.
Dependencies are inferred from the claim text.