High solids liquid binders
AssigneeOwens Corning Intellectual Capital, LLC
InventorsGert Rainer Julius Mueller, Xiujuan Zhang, Nathalie Bea Milbrandt
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Abstract
A fibrous insulation product is disclosed comprising a plurality of randomly oriented fibers and a binder composition at least partially coating the fibers. Prior to cure, the binder composition comprises an aqueous composition including at least 35 wt. % of a reactive diluent polyol having a mol-equivalent weight per OH group of at least 40 and 20 wt. % to less than 70 wt. % of a polymeric crosslinking agent. The aqueous binder composition has a viscosity that is at least 10% less than a substantially similar aqueous binder composition that includes monomeric polyol rather than a multifunctional oligomeric polyol, at the same temperature and solids content.
Claims20
A fibrous insulation product comprising:
- a plurality of randomly oriented fibers;
- and
- a binder composition at least partially coating the fibers, characterized in that, prior to cure, the binder composition is an aqueous composition comprising:
- at least 35 wt. % of a reactive diluent polyol having a mol-equivalent weight per OH group of at least 40;
- 20 wt. % to less than 70 wt. % of a polymeric crosslinking agent;
- wherein the aqueous binder composition has a viscosity that is at least 10% less than a substantially similar aqueous binder composition that includes monomeric polyol rather than a multifunctional oligomeric polyol, at the same temperature and solids content.
An aqueous binder composition for forming a fibrous insulation product, characterized in that the binder composition has a viscosity at a temperature of 25° C. of less than 5,000 cP at 73% solids, the binder composition comprising:
- at least 35 wt. % of a reactive diluent polyol, wherein the reactive diluent polyol has a mol-equivalent weight per OH group of at least 40 and is substantially in liquid form at a solids content of 75% and above at ambient temperature;
- and
- 20 wt. % to 70 wt. % by weight of a polymeric crosslinking agent comprising at least two carboxylic acid groups.
A method for forming a fibrous insulation product comprising:
- forming an uncured insulation blanket from a plurality of randomly oriented fibers at least partially coated with an aqueous binder composition, the aqueous binder composition comprising:
- at least 35 wt. % of a reactive diluent polyol, wherein the reactive diluent polyol has a mol-equivalent weight per OH group of at least 40 and is substantially in liquid form at a solids content above 75% at ambient temperature;
- and
- 20 wt. % to 70 wt. % by weight of a polymeric crosslinking agent comprising at least two carboxylic acid groups;
- and
- curing the insulation blanket to form a fibrous insulation product.
Dependencies are inferred from the claim text.