Curable fiberglass binder
AssigneeJohns Manville
InventorKiarash Alavi
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Abstract
A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an addition product of an amine and a reactant to form an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. The composition when applied to fiberglass is cured to form a water-insoluble binder which exhibits good adhesion to glass. In a preferred embodiment the fiberglass is in the form of building insulation. In other embodiments the product is a microglass-based substrate for use in a printed circuit board, battery separator, filter stock, or reinforcement scrim.
Claims20
A process of making a formaldehyde-free fiberglass product, wherein the process comprises:
- applying a binder composition to glass fibers, wherein the binder composition comprises:
- an aldehyde or ketone, and
- an amino-amide oligomer consisting of an addition product of an amine and a carbonyl-containing compound;
- and
- curing the binder composition while present on the glass fibers to make the formaldehyde-free fiberglass product, wherein the cured binder composition includes reaction products of the aldehyde or ketone and the amino-amide oligomer.
A process of making a formaldehyde-free fiberglass product, wherein the process comprises:
- reacting an amine and a carbonyl-containing compound to form an amino-amide oligomer,
- mixing the amino-amide oligomer with a reducing sugar to form a binder composition;
- applying the binder composition to glass fibers;
- and
- curing the binder composition while present on the glass fibers to make the formaldehyde-free fiberglass product, wherein the cured binder composition includes reaction products of the reducing sugar and the amino-amide oligomer.
Dependencies are inferred from the claim text.