IP Library › Granted Patent US 11,603,450
Granted Patent B2
US 11,603,450 · App. 17/007,678 · Granted Mar 14, 2023

High-carbon recovered paper and plastic materials with reduced endotoxin levels

Inventor: Jack G. Winterowd (Puyallup, WA)
Assignee: Continuus Materials Intellectual Property, LLC
C08K5/0058B29C70/528C08J3/212C08J5/06
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Quick Facts
Patent No.
US 11,603,450
App. No.
17/007,678
Granted
Mar 14, 2023
Kind
B2
Abstract

Provided herein are composite materials comprising at least 70 wt. % thermally consolidated recovered paper and plastic fragments and less than 5,000 ng water-soluble endotoxin per gram of composite materials, as well as methods of preparing said composite materials and methods of sanitizing recovered waste materials.

Claims (9)

1. A composite material comprising about 70 wt. % to about 99 wt. % of thermally consolidated recovered paper and plastic fragments, about 0.01 wt. % to about 0.40 wt. % of polymerization product of a multifunctional aldehyde, and about 0.0001 wt. % to about 0.02 wt. % of cross-linked endotoxin.

2. The composite material of claim 1 , wherein the multifunctional aldehyde is selected from the group consisting of malondialdehyde, succinic dialdehyde, glutaraldehyde, phthalaldehyde, or a combination of two or more thereof.

3. The composite material of claim 1 further comprising about 0.01 wt. % to about 2.0 wt. % of a biocide.

4. The composite material of claim 3 , wherein the biocide comprises boric acid, zinc borate, calcium borate, disodium octaborate tetrahydrate, elemental copper, elemental chromium, elemental arsenic, elemental silver, propiconazole, hydrogen peroxide, peracetic acid, cresol, dichlorophen, triclosan, centrimide, benzalkonium chloride, cetylpyridinium chloride, or 2,2-dibromo-3-nitrilopropionamide (DBNPA), or a combination of two or more thereof.

5. The composite material of claim 1 further comprising about 0.01 wt. % to about 2.0 wt. % of an odor blocker.

6. The composite material of claim 5 , wherein the odor blocker comprises activated carbon, sodium bicarbonate, zeolite, or iodine, or a combination of two or more thereof.

7. The composite material of claim 1 further comprising about 0.01 wt. % to about 2.0 wt. % of an insecticide.

8. The composite material of claim 7 , wherein the insecticide comprises permethrin or deltamethrin, or a combination thereof.

9. The composite material of claim 1 further comprising less than about 5,000 ng of water-soluble endotoxin per gram of composite material.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2024
From: CONTINUUS MATERIALS INTELLECTUAL PROPERTY, LLC
To: CONTINUUS MATERIALS HOLDCO, LLC
Reel/Frame 068143/0117 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2020
From: WINTEROWD, JACK G.; SPENCER, MATTHEW; SCHELLER, HENRY; PASTORE, VINCENT
To: CONTINUUS MATERIALS INTELLECTUAL PROPERTY, LLC
Reel/Frame 053645/0570 →
Continuity (1)
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