Patent ID: 11926745
Assignee: SUN CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A water-based liquid black ink composition comprising water, biochar pigment, and a rosin adduct, wherein the rosin adduct has 100% bio-renewable carbon (BRC) content, based on the carbon content of the rosin adduct; wherein the rosin adduct is a 100% BRC rosin adduct that is a rosin ester, prepared by reacting one or more rosin acid monomers and/or dimers with one or more alpha-hydroxy acids; and wherein the water-based liquid black ink composition has a carbon content; and wherein 70% to 100% of the carbon content in the water-based liquid black ink composition is bio-renewable carbon (BRC).