Carbon. has been granted a patent for methods to recycle additively manufactured objects made from various polyurethanes and polyureas. The process involves melting or dissolving these materials to create new objects or resin, enhancing sustainability in additive manufacturing. GlobalData’s report on Carbon gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Carbon, Spacecraft 3D Printing was a key innovation area identified from patents. Carbon's grant share as of July 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Recycling methods for additively manufactured thermoplastic objects
The granted patent US12042994B2 outlines a method for recycling additively manufactured objects, specifically those made from thermoplastic materials. The process begins with the provision of recyclable material, which can include thermoplastic objects derived from scrap additive manufacturing resin. These objects are characterized by a blend of various polyurethanes and polyureas, along with a polymerized reactive diluent. The recycling method involves either melting or dissolving the recyclable material to create a liquid thermoplastic, which can then be used to form new objects or packaged to produce resin. The method also allows for the blending of the recyclable material with additional thermoplastic materials at various stages of the process.
Further details in the claims specify that the reactive diluent can be monofunctional and that the forming process can utilize techniques such as molding, casting, or fused deposition modeling. The recyclable material can be prepared by fragmenting the objects through methods like cutting or grinding. Additionally, the patent describes various forms the recyclable material can take, including sheets, fibers, filaments, or pellets. The claims also mention the potential inclusion of plasticizers in the blend, which can enhance the properties of the final recycled product. Overall, this patent presents a comprehensive approach to recycling thermoplastic materials from additive manufacturing, contributing to sustainability in the industry.
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