Binder and fiber glass product from maillard reactants
AssigneeKnauf Insulation, Inc.
InventorsBrian Lee Swift, Ruijian Xu, Ronald E. Kissell
Life of this patent
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Abstract
The present disclosure is directed to cured and uncured binders useful in the fabrication of products from loosely assembled fibers. For example, the disclosure describes cured and uncured binders useful in the fabrication of products from loosely assembled glass fibers. The disclosure also describes methods of fabricating products from loosely assembled fibers utilizing the aforementioned binders.
Claims28
A method of making a collection of matter bound with a melanoidin containing binder, comprising:
- preparing an aqueous solution containing reactants for producing melanoidins, wherein the reactants include dextrose, citric acid, and ammonia;
- disposing the aqueous solution onto the collection of matter;
- volatilizing the water to form a dehydrated reactive mixture disposed upon the collection of matter, and
- polymerizing the dehydrated reactive mixture to form melanoidins cross-linked with the citric acid.
A method of fabricating a fiberglass product, comprising:
- spraying an aqueous solution onto a collection of glass fibers wherein, the aqueous solution includes ammonia, citric acid, and a reducing-sugar carbohydrate in proportions such that the aqueous solution has an alkaline pH;
- dehydrating the aqueous solution while disposed on the collection of glass fibers to form a. fiberglass product;
- and
- subjecting the fiberglass product to sufficient heat to turn the fiberglass product brown, wherein the heating forms melanoidins that are cross-linked with the citric acid.
A method of fabricating a fiberglass mat, consisting essentially of:
- disposing an uncured mixture onto a collection of glass fibers;
- and
- dehydrating the uncured mixture, wherein
- (i) the uncured mixture includes an ammonium salt of a monomeric polycarboxylic acid and a monomeric reducing-sugar carbohydrate, and
- (ii) curing, the uncured mixture results in a nitrogeneous polymer including melanoidin products cross-linked with ester linkages from the monomeric polycarboxylic acid.
A method of making a collection of matter bound with a binder comprising:
- preparing an aqueous solution comprising a carbohydrate reactant, an amine base reactant, and a polycarboxylic acid reactant,
- disposing the aqueous solution onto the collection of matter,
- volatilizing the water to form a dehydrated reactive mixture disposed upon the collection of matter,
- curing the dehydrated reactive mixture to form melanoidin products, and
- cross-linking the melanoidin products with the polycarboxylic acid reactant.
A composition comprising a collection of matter and a binder, the binder comprising melanoidin products of a substantially dehydrated reaction between a carbohydrate and an amine base, the melanoidin products being cross-linked with a polycarboxylic acid.
Dependencies are inferred from the claim text.