Method of controlling kinematic viscosity of polyalphaolefin

US11370987B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

• Sukhdeep Kaur · Boise, US
• Usharani Sahoo · Faridabad, IN
• Gurmeet Singh · Faridabad, IN
• Naresh Pappu · Faridabad, IN
• Jai Narayan Pandey · Faridabad, IN
• Shobhashankar Kumhar · Faridabad, IN
• Gurpreet Singh Kapur · Faridabad, IN
• Deepak Saxena · Faridabad, IN
• Sankara Sri Venkata RAMAKUMAR · Faridabad, IN

Key dates

• Filing date: Apr 13, 2021
• Grant date: Jun 28, 2022
• Expiry date: Apr 13, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2020/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method of the oligomerization of C6 and above olefin monomer whereby, at a fixed monomer/Al halide mole ratio, polyalphaolefins having desirable kinematic viscosities are prepared by controlling the oligomerization temperature. The oligomerization is carried out in presence of an oligomerizing catalyst comprising of aluminum halide and a promoter, and oligomerizing temperatures of about 10° C. to about 120° C.