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US 12,466,771 B2Granted
Composite cellulosic products and processes for making and using same
AssigneeSierracrete LLC
InventorEvgeny Panferov
Life of this patent
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Abstract
Composite cellulosic products and processes for making same. In some embodiments, the composite cellulosic product can include a plurality of cellulosic substrates and an at least partially cured binder. Prior to curing, the binder can include a mixture formed by combining magnesium oxide, water, and magnesium chloride. A weight ratio of the magnesium oxide to the magnesium chloride in the binder can be at least 2.2:1 to 8.5:1.
Claims20
A composite product, comprising:
- an at least partially cured binder and a plurality of cellulosic substrates, wherein, prior to curing, the binder comprises a mixture formed by combining:
- magnesium oxide,
- water,
- magnesium chloride, and
- an additive comprising magnesium polyacrylate, sodium polyacrylate, chitosan, polyacrylamide, polydiallyldimethylammonium chloride, polyacrylic acid, poly(acrylamide-co-diallyldimethylammonium chloride), or a mixture thereof, wherein a weight ratio of the magnesium oxide to the magnesium chloride in the binder is about 0.8:1 to about 8.7:1, and wherein a weight ratio of the water to the magnesium chloride in the binder is about 1.2:1 to about 4.5:1.
2 more elements
A process for making a composite product, comprising:
- contacting a plurality of cellulosic substrates with a binder to produce a mixture, wherein the binder comprises:
- magnesium oxide,
- water,
- magnesium chloride, and
- an additive comprising sodium polyacrylate, chitosan, magnesium polyacrylate, polyacrylamide, polydiallyldimethylammonium chloride, polyacrylic acid, poly(acrylamide-co-diallyldimethylammonium chloride), or a mixture thereof, wherein a weight ratio of the magnesium oxide to the magnesium chloride in the binder is about 0.8:1 to about 8.7:1, and wherein a weight ratio of the water to the magnesium chloride in the binder is about 1.2:1 to about 4.5:1;
- and
- at least partially curing the binder to produce the composite product.
4 more elements
A composite product, comprising:
- an at least partially cured binder and a plurality of cellulosic substrates, wherein, prior to curing, the binder comprises a mixture formed by combining:
- magnesium oxide,
- water,
- magnesium chloride,
- calcium chloride,
- sodium chloride,
- potassium chloride, and
- an additive comprising magnesium polyacrylate, sodium polyacrylate, chitosan, polyacrylamide, polydiallyldimethylammonium chloride, polyacrylic acid, poly(acrylamide-co-diallyldimethylammonium chloride), or a mixture thereof.
5 more elements
Dependencies are inferred from the claim text.