Intellectual Property India Publishes Patent Application for Viscosity Index Improver Additives Of Lubricating Oils And Process For Their Preparation

MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202647074815 A) filed by Versalis S. P. A. on June 17, 2026, for Viscosity Index Improver Additives Of Lubricating Oils And Process For Their Preparation.

Inventors include Perretta, Costantino; Regattieri, Giovanni; Urbinati, Sabrina; and Perin, Nicola.

The application for the patent was published on June 26, 2026, under issue no. 26/2026.

Abstract: Viscosity index improver (V.I.I.) additive of lubricating oils comprising a hydrogenated linear polybutadiene, said hydrogenated linear polybutadiene having the following characteristics: - weight average molecular weight (Mw) comprised between 1000 Dalton and 40000 Dalton, preferably comprised between ...