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US 11,959,210 B2Granted
Nonwoven with two-part binder system
AssigneeOwens Corning Intellectual Capital, LLC
InventorTony Wu
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Abstract
Disclosed herein is a binder system for nonwoven fiber mats that provides desirable properties to the nonwoven mat including desirable porosity, desirable surface properties e.g., desirable wettability and/or moisture resistance, and enhanced tensile strength. The system includes a two-part binder that includes (1) a formaldehyde-free carbohydrate-based binder and (2) a formaldehyde-free hydrophobic acrylic-based hinder.
Claims20
A nonwoven fiber mat comprising:
- randomly oriented fibers;
- and
- a two-part binder system applied to at least a portion of the randomly oriented fibers, wherein the binder system comprises:
- a formaldehyde-free carbohydrate-based binder, and
- a formaldehyde-free hydrophobic acrylic-based binder,
- wherein the formaldehyde-free hydrophobic acrylic-based binder is applied over the formaldehyde-free carbohydrate-based binder,
- and wherein the formaldehyde-free acrylic-based binder is impregnated within the nonwoven fiber mat.
4 more elements
Dependencies are inferred from the claim text.