Back to results
US 2023/0130097 A1Published application
Polymer particles comprising lignin and related additive manufacturing methods
AssigneeXerox Corporation
InventorsValerie M. FARRUGIA, Shivanthi Easwari SRISKANDHA
Life of this patent
Estimating the term…
Abstract
Thermoplastic polymer particles suitable for use in additive manufacturing and related methods may comprise lignin. For example, said polymer particles may comprise a thermoplastic polymer, a lignin, optionally an emulsion stabilizer, and optionally a compatibilizer. Said polymer particles may be produced by melt emulsification methods and be highly spherical and, consequently, suited for selective laser sintering methods of additive manufacturing.
Claims20
A method comprising:
- mixing a mixture comprising:
- a thermoplastic polymer, a lignin, a carrier fluid, and optionally an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer to emulsify a thermoplastic polymer melt in the carrier fluid;
- cooling the mixture to below the melting point or softening temperature to form polymer particles;
- and
- separating the polymer particles from the carrier fluid, wherein the polymer particles comprise the thermoplastic polymer, the lignin, the emulsion stabilizer, if included.
2 more elements
A selective laser sintered article comprising:
- polymer particles comprising a thermoplastic polymer, a lignin, optionally an emulsion stabilizer, and optionally a compatibilizer.
A composition comprising:
- polymer particles comprising a thermoplastic polymer, a lignin, optionally an emulsion stabilizer, and optionally a compatibilizer, wherein the polymer particles have an aerated density of about 0.5 g/cm3 to about 0.8 g/cm3.
Dependencies are inferred from the claim text.