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US 12,152,324 B2Granted
Cross-linked non-woven mat
AssigneeOwens Corning Intellectual Capital, LLC
InventorsXin Wang, Paul Geel
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Abstract
A cross-linked nonwoven fibrous mat is disclosed comprising a core layer including a fibrous precursor mat bound with a formaldehyde-free core binder composition and a cross-linker disposed on at least one surface of the core layer, said cross-linker comprising one or more of isocyanate, polyol, and melamine functional groups. The cross-linked nonwoven mat has a hot-wet retention of at least 25%.
Claims8
A cross-linked nonwoven fibrous mat comprising:
- a core layer including a precursor mat comprising a plurality of fibers bound with a formaldehyde-free core binder composition having hydroxyl or carboxylic acid functional groups,
- wherein the plurality of fibers comprises one or more of glass fibers, mineral fibers, and ceramic fibers;
- and
- a protective coating composition disposed on at least one surface of the core layer, wherein the protective coating composition comprises a cross-linker comprising one or more of isocyanate and melamine functional groups;
- wherein the hydroxyl or carboxylic acid functional groups on the at least one surface of the core layer cross-link with the cross-linker in the coating to form a shell layer, and
- wherein the cross-linked nonwoven mat has a hot-wet retention of at least 25%.
3 more elements
Dependencies are inferred from the claim text.