Ultra stable structural laminate

Patent metadata

Field	Value
Publication number	US-11577999-B2
Application number	US-202117154655-A
Country	US
Kind code	B2
Filing date	Jan 21, 2021
Priority date	Nov 7, 2017
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

An ultra-stable structural laminate with fire resistance and a lateral nail pull strength from 44 to 300 pounds of force and an insulation R value from 1 to 40, the ultra-stable structural laminate of a cementious material with a nano-molecular veneer and a foam component catalytically reacted into an expanded closed cell foam having a thickness from ⅛th inch to 8 inches, a density from 1.5 pounds/cubic foot to 3 pounds/cubic foot that self-adheres to the cementitious material forming an ultra-stable structural laminate with fire resistance and a lateral nail pull strength from 44 pounds to 300 pounds of force, an insulation R value from 1 to 40, a resistance to seismic impact for earthquakes over 3.1 on the Richter Scale, a break point from 7 lbs/inch to 100 lbs/inch; and a resistance to wind shear equivalent to a 15 mph downburst.

First claim

What is claimed is:

1. A cementitious construction material comprising:
(i) a cementitious material comprising:
(a) 29 wt % to 40 wt %, based on the final total weight of the cementitious material, of a magnesium oxide dry powder containing 80 wt % to 98 wt % of magnesium oxide, the magnesium oxide having a surface area ranging from 5 meters 2 /gram to 50 meters 2 /gram and an average particle size ranging from about 0.3 to about 90 microns wherein more than about 90% by weight magnesium oxide particles are less than or equal to about 40 microns;
(b) 14 wt % to 18 wt %, based on the final total weight of the cementitious material, of magnesium chloride;
(c) 0.1 wt % to 10 wt %, based on the final total weight of the cementitious material, of a stabilizing material, the stabilizing material comprising:
a. an aqueous solution comprising of 55 wt % to 65 wt % of phosphorous acid (H 3 P 3 ); or
b. an aqueous solution comprising of 80 wt % to 90 wt % of phosphoric acid (H 3 PO 4 );
wherein the cementitious material comprises a plurality of crystals and an amorphous phase cementitious material, each of the plurality of crystals having a molecular weight (MW) within the range of 280 to 709, the amorphous phase cementitious material encapsulating the plurality of crystals,
wherein a majority of stabilizing material is consumed during curing into a nano-molecular veneer while increasing a surface area of the plurality of crystals by 2% to 49% during curing,
wherein the cured nano-molecular veneer comprises nano-molecular elements which are insoluble in water and the cured nano-molecular veneer protects the plurality of crystals of the formed cementitious material from degradation in water at temperatures from 20 degrees to 60 degrees Celcius for from 24 hours to 56 days;

(ii) a foam component catalytically reacted into an expanded closed cell foam having a thickness from ⅛″ inch to 8 inches, a density from 1.5 pounds/cubic foot to 3 pounds/cubic foot that self-adheres to the cementitious material; and
(iii) a substrate selected from the group consisting of oriented strand board, plywood, waterproof membrane, concrete, and wood; and
wherein the cementitious construction material with fire resistance has a lateral nail pull strength from 44 pounds to 300 pounds of force; an insulation R value from 1 to 40; a resistance to seismic impact for earthquakes over 3.1 on the Richter Scale; a break point from 7 lbs/inch to 100 lbs/inch; and a resistance to wind shear equivalent to a 15 mph downburst.

2. The cementitious construction material of claim 1 , further comprising in the cementitious material: 0.1 wt % to 30 wt % of an aggregate based on a final total weight of the cementitious material, the aggregate comprising particles, having a diameter from 1 nm to 10 mm, wherein the aggregate comprises wood, perlite, styrene based foam beads, calcium carbonate powder, glass particulate, or combinations thereof.

3. The cementitious construction material of claim 2 , further comprising in the cementitious material: 0.1 wt % to 2 wt % of a reinforcing material based on the final total weight of the cementitious material, the reinforcing material comprising a non-woven or woven silica containing mat, a non-woven or woven hydrocarbon containing mat.

4. The cementitious construction material of claim 2 , further comprising in the cementitious material: 0.1 wt % to 10 wt % of at least one surfactant based on the final total weight of the cementitious material.

5. The cementitious construction material of claim 4 , wherein the surfactant is a detergent.

6. The cementitious construction material of claim 2 , further comprising in the cementitious material: 0.1 wt % to 5 wt % of a re-dispersible powder polymer based on the final total weight of the cementitious material.

7. The cementitious construction material of claim 6 , wherein the re-dispersible powder polymer is selected from the group consisting of a silicone, a polyurethane dispersion, a polyurethane, a polymer of an alkyl carboxylic acid vinyl ester monomer, a polymer of a branched or unbranched alcohol ester of acid monomer, a polymer of a vinyl aromatic monomer, a polyolefin, a polydiene, a polyvinyl halide, and a copolymer of vinyl acetate and ethylene (VAE).

8. The cementitious construction material of claim 6 , further comprising in the cementitious material: 0.1 wt % to 5 wt % based on the final total weight of the cementitious material of an acrylic or a styrene butadiene rubber (SBR).

9. The cementitious construction material of claim 1 , further comprising in the cementitious material: 0.1 wt % to 15 wt % biomass added to the amorphous phase cementitious material based on the final total weight of the cementitious material and mixing from 3 to 10 minutes.

10. The cementitious construction material of claim 9 , wherein the biomass is a member of the group consisting of rice husks, corn husks, and dung.

11. The cementitious construction material of claim 1 , wherein the expanded closed cell foam is a pentane blown closed cell polyurethane foam.

12. The cementitious construction material of claim 1 , wherein the foam component comprises at least one member selected from the group consisting of a polyurethane, a polyisocyanurate and a polystyrene.

13. The cementitious construction material of claim 1 , further comprising in the cementitious material: 0.1 wt % to 15 wt % of a reinforcing material based on the final total weight of the cementitious material, the reinforcing material comprising:
(i) chopped silica containing fibers;
(ii) hemp containing fibers;
(iii) nano-molecular carbon fiber strands;
(iv) chopped carbon fibers;
(v) chopped hydrocarbon fibers; or combinations thereof.

14. The cementitious construction material of claim 13 , wherein the reinforcing material is chopped carbon fibers.

15. The cementitious construction material of claim 1 , wherein the substrate is oriented strand board.

Assignees

• Mitek Holdings Inc

Inventors

• Wambaugh James A
• Rochner Brett
• Weinberger Cole J

Classifications

• B32B13/02

  with fibres or particles {being present as additives in the layer} · CPC title

• B32B2266/08

  Closed cell foam · CPC title

• C04B14/386

  Carbon (carbon nanotubes C04B14/026) · CPC title

• B32B2307/732

  Dimensional properties · CPC title

• B32B2419/00

  Buildings or parts thereof · CPC title