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US 12,552,146 B2Granted
Re-pulpable insulated paper products and methods of making and using the same
AssigneeAstra Thermal Sciences LLC
InventorsAndrew Howard Field, Nigel J. Flynn, Taylor Kopacka Leigh, Jason Lye, Lon E. Pschigoda, II
Life of this patent
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Abstract
Insulated paper products are disclosed. Methods of making and using insulated paper products are also disclosed.
Claims20
An insulated paper product comprising:
- two or more paper layers and insulating material, said insulating material comprising particles having an average particle size of less than about 1000 microns (μm), said particles comprising cenospheres, an aerogel, vermiculite, hollow expanded vermiculite, or any combination thereof, the two or more paper layers being bonded to one another so as to form an integral paper product,
- wherein the integral paper product (i) has a non-uniform distribution of the insulating material therethrough and (ii) is repulpable, and
- wherein each paper layer that contains insulating material comprises from 15.0 weight percent (wt %) to 80.0 wt % fibers, and from about 85.0 wt % to about 20.0 wt % of the insulating material, based on a total weight of a given paper layer within the two or more paper layers.
An insulated paper product comprising:
- two or more paper layers and insulating material, said insulating material comprising particles having an average particle size of less than about 1000 microns (μm), said particles comprising cenospheres, an aerogel, vermiculite, hollow expanded vermiculite, or any combination thereof, the two or more paper layers being bonded to one another so as to form an integral paper product,
- wherein the integral paper product (i) has a non-uniform distribution of the insulating material therethrough and (ii) is repulpable, and
- wherein one or more paper layers within said two or more paper layers comprise the insulating material.
An insulated paper product comprising:
- two or more paper layers and insulating material, said insulating material comprising particles having an average particle size of less than about 1000 microns (μm), said particles comprising cenospheres, an aerogel, vermiculite, hollow expanded vermiculite, or any combination thereof, the two or more paper layers being bonded to one another so as to form an integral paper product,
- wherein the integral paper product (i) has a non-uniform distribution of the insulating material therethrough and (ii) is repulpable, and
- wherein said insulated paper product has an ash content of at least 15.9 wt %, based on a total weight of said insulated paper product as determined by test method TAPPI T 211 om-16 Ash in wood, pulp, paper and paperboard:
- combustion at 525° C.
1 more element
Dependencies are inferred from the claim text.