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US 12,351,739 B1Granted
Hot-melt adhesive and method of making same using recycled polymer materials
OwnerJeffrey Maukinventor
Life of this patent
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Abstract
A hot-melt adhesive having a base made from a process oil and recycled expanded polystyrene (EPS) or recycled expanded polyethylene (EPE) is provided. Additional materials such as tackifiers and/or fillers can be added to adjust the specific properties of the adhesive for its intended use. A method of making the hot-melt adhesive using a base comprising a process oil and recycled expanded polystyrene (EPS) or recycled expanded polyethylene (EPE) is also provided.
Claims8
A method of making a hot-melt adhesive comprising the steps of:
- a. heating an aromatic hydrocarbon process oil to a desired temperature that is below a boiling point of the process oil;
- b. adding a polymer consisting of expanded polystyrene to and dissolving the polymer in the heated process oil, wherein the polymer is added and dissolved until the hot-melt adhesive includes substantially equal parts by weight process oil and polymer;
- c. cooling the process oil and polymer mixture to room temperature resulting in a solid-form hot-melt adhesive.
A method of making a hot-melt adhesive comprising the steps of:
- a. heating a process oil to a desired temperature that is below a boiling point of the process oil;
- b. adding expanded polyethylene to and dissolving the expanded polyethylene in the heated process oil, wherein expanded polyethylene is added and dissolved until the hot-melt adhesive includes substantially equal parts by weight process oil and polyethylene;
- c. cooling the process oil and polyethylene mixture to room temperature resulting in a solid-form hot-melt adhesive.
Dependencies are inferred from the claim text.