Production of highly pure meta,meta-coupled bis(4-alkylphenol) derivatives and uses thereof

In general the present invention concerns a method for production of highly pure m,m'- coupled bis(4-alkylphenol) derivatives from particular lignin-derived 4-alkylphenol derivatives. More specifically this invention relates to a process for the selective purification of m,m'- coupled bis(4-alkylphenol) derivatives by selective crystallization in the presence of residual substrate and isomeric and/or oligomeric by-products/impurities. This new class of bis(4-alkylphenol)s are valuable precursors for renewable thermoplastics, (high temperature) resins/thermosets, bio-derived C15-C19 fuel additives, antioxidants, UV-stabilizers, plasticizers, soluble n-type perylene copolymers and/or positive working photoresists.

Octrooi-publicatienummer: EP3571180

Jaar aanvraag: 2019

Jaar toekenning: 2020

Jaar van publicatie: 2019

Status: Aangevraagd

Technologiedomeinen: Organische fijne chemie

Gevalideerd voor IOF-sleutel: Ja

Toegewezen aan: Associatie KULeuven