IP Library › Granted Patent US 12,534,622
Granted Patent B2
US 12,534,622 · App. 18/391,060 · Granted Jan 27, 2026

Biodegradable articles comprising decomposition products from biodegradable materials and related methods

Inventors: Ehab Sayed (London, GB); Francesco Verderosa (London, GB); Jonathan Woods (Glasgow, GB); Irene Li Barnett (London, GB)
Assignee: BIOHM Ltd.
C08L97/02C08L2201/06
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Quick Facts
Patent No.
US 12,534,622
App. No.
18/391,060
Granted
Jan 27, 2026
Kind
B2
Abstract

The present disclosure describes articles that include decomposition products from biodegradable compounds, and related methods.

Claims (37)

1 . An article, comprising:

a biodegradable material comprising a wt % of lignin of greater than or equal 0.05 wt % and/or less than or equal to 7 wt % and having a first portion and a second portion; and

an intrinsic binder comprising a decomposition product of the biodegradable material, wherein the intrinsic binder is bound to the first portion and the second portion of the biodegradable material,

wherein:

a thickness of the article is greater than or equal to 1 mm and/or less than or equal to 25 mm;

a porosity of the article is greater than or equal to 25% and less than or equal to 80%;

a density of the article is greater than or equal to 0.3 g/cm 3 and less than or equal to 1.8 g/cm 3 ; and

an amount of glucan in the article is less than or equal to 47 wt %.

2 . An article, comprising:

a biodegradable material comprising a wt % of lignin of greater than or equal 0.05 wt % and/or less than or equal to 7 wt % and having a first portion and a second portion; and

an intrinsic binder comprising a decomposition product of the biodegradable material, wherein the intrinsic binder is bound to the first portion and the second portion of the biodegradable material,

wherein:

a thickness of the article is greater than or equal to 1 mm and/or less than or equal to 25 mm;

a porosity of the article is greater than or equal to 25% and less than or equal to 80%;

a density of the article is greater than or equal to 0.3 g/cm 3 and less than or equal to 1.8 g/cm 3 ; and

an amount of glucan in the article is greater than or equal to 54 wt %.

3 . The article of claim 1 , further comprising an external binder, wherein the external binder is bound to at least a portion of the intrinsic binder and the first portion or the second portion of the biodegradable material, and wherein the external binder is greater than or equal to 0.01 wt % with respect to a total weight of the article.

4 . The article of claim 1 , wherein an amount of glucan in the article is greater than or equal to 0.1 wt % and less than 47 wt % with respect to a total weight of the article.

5 . The article of claim 1 , wherein an amount of glucan in the article is greater than 54 wt % and less than or equal to 90 wt % with respect to a total weight of the article.

6 . The article of claim 1 , wherein the intrinsic binder is formed, at least in part, from the biodegradable material.

7 . The article of claim 1 , wherein greater than or equal to 20% of article is crosslinked and/or less than or equal to 99.99 wt % of the article is crosslinked.

8 . The article of claim 1 , wherein a flexural strength of the article is greater than or equal to 1 MPa and/or less than or equal to 70 MPa.

9 . The article of claim 1 , wherein a tensile strength of the article is greater than or equal to 0.5 MPa and/or less 65 MPa.

10 . The article of claim 1 , wherein an internal bond strength of the article is greater than or equal to 0.5 N/mm 2 and/or less than or equal to 1.6 N/mm 2 .

11 . The article of claim 1 , wherein a swelling thickness of the article after immersion in water is greater than or equal to 0 mm and/or less than or equal to 3 mm.

12 . The article of claim 1 , wherein a hardness of the article is greater than or equal to 15 D and/or less than or equal to 80 D.

13 . The article of claim 1 , wherein the article has a bioresistence of 3, as determined by an ASTM-C1338 standard test.

14 . The article of claim 1 , wherein the biodegradable material is greater than or equal to 55 wt % of the article.

15 . The article of claim 1 , wherein the intrinsic binder is less than or equal to 45 wt % of the article.

16 . The article of claim 1 , wherein the biodegradable material comprises orange peels and/or coffee chaff.

17 . A method, comprising:

with a biodegradable material comprising a wt % of lignin of greater than or equal 0.05 wt % and/or less than or equal to 7 wt % and having a first portion and a second portion, performing the steps of:

reducing a particle size of the biodegradable material to an average diameter of less than or equal to 10 mm and/or greater than or equal to 1 mm;

degrading at least a portion of the biodegradable material into a decomposition product of the biodegradable material and a degraded material; and

forming an intrinsic binder comprising the decomposition product of the biodegradable material, wherein the intrinsic binder is bound to the first portion and the second portion of the biodegradable material,

wherein an amount of glucan in the biodegradable material is less than or equal to 47 wt %.

18 . The method of claim 17 , further comprising applying a surface finish and/or a coating to the intrinsic binder, the first portion and the second portion of the biodegradable material.

Assignments (2)
SECURITY INTEREST Recorded Mar 23, 2026
From: BIOHM LTD
To: KHEJRI PTE. LTD
Reel/Frame 075262/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2025
From: SAYED, EHAB; VERDEROSA, FRANCESCO; WOODS, JONATHAN; BARNETT, IRENE LI
To: BIOHM LTD.
Reel/Frame 070591/0700 →
Continuity (2)
Provisional Application 63436471 · Dec 30, 2022
Related Publication 20240218185A1 · Jul 4, 2024
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