25.06.2021 у. Kholmurоdova Dilafruz Кuvatovna was defended on the topic: «DEVELOPMENT OF EFFECTIVE COMPOSITION WOOD-PLASTIC SLAB MATERIALS BASED ON LOCAL RAW MATERIALS AND PRODUCTION WASTES », in the specialties: 02.00.07- "Chemistry and technology of composite, varnish paint and rubber materials" and 02.00.05 – "Chemistry and technology of cellulose and paper production" for the degree of Doctor of of doctor of science (DSc)