Polycarboxy/polyol fiberglass binder
AssigneeJohns Manville International, Inc.
InventorsThomas Taylor, Derek Bristol
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Abstract
Provided is a novel fiberglass binder comprising a polycarboxy polymer and a polyol. The amount of polycarboxy polymer and polyol contained in the binder is such that the ratio of equivalents of hydroxyl groups to carboxy groups is preferably in the range from from about 0.6/1 to 0.8/1. It is further preferred that the molecular weight of the polycarboxy polymer is less than 10,000, and more preferably less than 5000.
Claims15
1-20. (canceled)
A duct liner comprised of a fiberglass mat prepared with a fiberglass binder comprising an aqueous solution of
- a) a polycarboxy polymer having a number average molecular weight of 5000 or less, and
- b) a polyol with the amount of polycarboxy polymer and polyol in the binder being such that the ratio of equivalents of hydroxyl groups to equivalents of carboxy groups is in the range of from 0.6/1 to 0.8/1, and with the viscosity of the binder solution, at 25° C. in 40% solids, ranging from about 20 cP to about 100 cP.
A duct board comprised of nonwoven fiberglass and a binder, with the fiberglass binder comprising
- a) a polycarboxy polymer having a number average molecular weight of 5000 or less, and
- b) a polyol with the amount of polycarboxy polymer and polyol in the binder being such that the ratio of equivalents of hydroxyl groups to equivalents of carboxy groups is in the range of from 0.6/1 to 0.8/1, and with the fiberglass binder in aqueous solution having a viscosity of the binder solution, at 25° C. in 40% solids, ranging from about 20 cP to about 100 cP.
Dependencies are inferred from the claim text.