IP Library › Granted Patent US 12,534,589
Granted Patent B2
US 12,534,589 · App. 16/840,414 · Granted Jan 27, 2026

Encapsulation of modifiers in depolymerized products

Inventor: Domenic Di Mondo (Brantford, CA)
Assignee: GreenMantra Recycling Technologies Ltd.
C08J11/12C08J3/203C08J11/16C08J2323/06C08J2325/06C08J2391/06C08J2421/00C08K3/042
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Quick Facts
Patent No.
US 12,534,589
App. No.
16/840,414
Granted
Jan 27, 2026
Kind
B2
Abstract

A method of encapsulating modifiers in a depolymerized product is disclosed. In some embodiments the material undergoing depolymerization is one of polypropylene, polystyrene, and/or polyethylene. In some embodiments, the material is composed, at least partially, of recycled material. In some embodiments, the encapsulated modifiers are added to a formulation such as an asphalt, plastic lumber, plastic wood composite, a plastic formulation, a rubber formulation, an ink formulation, a coating formulation, and/or an adhesive formulation.

Claims (31)

1 . An encapsulated-modifier granule comprising:

a shell made of a depolymerized wax; and

a first-modifier located in said shell,

wherein said depolymerized wax is formed by depolymerizing recycled polyethylene via a catalytic process.

2 . The encapsulated-modifier granule of claim 1 wherein said encapsulated-modifier granule further comprises:

a second-modifier located in said shell.

3 . The encapsulated-modifier granule of claim 2 wherein said first-modifier and said second-modifier are different types of modifiers.

4 . The encapsulated-modifier granule of claim 2 wherein said encapsulated-modifier granule is spherical.

5 . The encapsulated-modifier granule of claim 2 wherein said encapsulated-modifier granule is cylindrical shaped.

6 . The encapsulated-modifier granule of claim 2 wherein said encapsulated-modifier granule is hexagonal or irregularly shaped.

7 . The encapsulated-modifier granule of claim 2 wherein said first-modifier is a pigment.

8 . The encapsulated-modifier granule of claim 2 wherein said first-modifier is selected from the group consisting of micronized, shredded and powder tire rubber.

9 . The encapsulated-modifier granule of claim 1 wherein said catalytic process utilizes a [Fe—Cu—Mo—P]/Al 2 O 3 catalyst.

10 . The encapsulated-modifier granule of claim 1 wherein said depolymerized wax has a melting point between an inclusive range of 110° C.-130° C.

11 . An encapsulated-modifier granule comprising:

a shell made of a depolymerized wax; and

an at least one first-modifier located in said shell,

wherein said depolymerized wax is formed by depolymerizing a recycled polypropylene via a catalytic process.

12 . The encapsulated-modifier granule of claim 11 wherein said encapsulated-modifier granule further comprises:

a second-modifier located in said shell.

13 . The encapsulated-modifier granule of claim 11 wherein said depolymerized wax has a melting point between an inclusive range of 150° C.-170° C.

14 . The encapsulated-modifier granule of claim 12 wherein said encapsulated-modifier granule is spherical.

15 . The encapsulated-modifier granule of claim 12 wherein said catalytic process utilizes a [Fe—Cu—Mo—P]/Al 2 O 3 catalyst.

16 . The encapsulated-modifier granule of claim 11 wherein said first-modifier is selected from the group consisting of micronized, shredded and powder tire rubber.

17 . The encapsulated-modifier granule of claim 11 wherein said first-modifier is a pigment.

18 . An encapsulated-modifier granule consisting essentially of:

a shell made of a depolymerized wax; and

a first-modifier located in said shell,

wherein said depolymerized wax is formed by depolymerizing a recycled polypropylene via a catalytic process.

19 . The encapsulated-modifier granule of claim 18 wherein said catalytic process utilizes a [Fe—Cu—Mo—P]/Al 2 O 3 catalyst.

20 . The encapsulated-modifier granule of claim 18 wherein said depolymerized wax has a melting point between an inclusive range of 150° C.-170° C.

Assignments (1)
NUNC PRO TUNC ASSIGNMENT Recorded Apr 15, 2020
From: DIMONDO, DOMENIC
To: GREENMANTRA RECYCLING TECHNOLOGIES LTD
Reel/Frame 052402/0797 →
Continuity (3)
Continuation PCTCA2018051517 · Nov 28, 2018
Provisional Application 62591434 · Nov 28, 2017
Related Publication 20200231776A1 · Jul 23, 2020
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