US11945151B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11945151-B2 |
| Application number | US-202217820144-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2022 |
| Priority date | Mar 22, 2018 |
| Publication date | Apr 2, 2024 |
| Grant date | Apr 2, 2024 |
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An additive manufacturing apparatus includes an additive manufacturing print head and a nozzle that receives a bio-based shape memory polymer material and a bio-based material. The nozzle extrudes the bio-based shape memory polymer material and the bio-based material onto a substrate to form a bio-based shape memory polymer part or product.
Opening claim text (preview).
The invention claimed is: 1. An additive manufacturing method for producing a part or a product, comprising: providing an additive manufacturing substrate; positioning an additive manufacturing print head in operative position relative to said additive manufacturing substrate; providing bio-based shape memory polymer additive manufacturing material in said additive manufacturing print head; and using an additive manufacturing control system to provide movement of said additive manufacturing print head relative to said additive manufacturing substrate and to extrude said bio-based shape memory polymer additive manufacturing material from said additive manufacturing print head onto said additive manufacturing substrate to form the part or product wherein said bio-based shape memory polymer additive manufacturing material includes components of shape memory polymer material and bio-based material and wherein said step of providing bio-based shape memory polymer additive manufacturing material in said additive manufacturing print head comprises the steps of adding carbon nano fibers fillers to epoxidized soy bean oil and Bisphenol A diglycidyl ether thermoset base resin to from an intermediate material, adding acetone to said intermediate material, sonicating said intermediate material, mixing said intermediate material, drying said intermediate material, and degassing said intermediate material.
using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title
using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title
Heads; Nozzles · CPC title
Feeding · CPC title
for controlling or regulating additive manufacturing processes · CPC title
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