Process for the preparation of lightly-branched hydrophobes and the corresponding surfactants and applications thereof

US10836697B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Paul R. Elowe · Midland, US
• Wanglin Yu · Midland, US
• Brad C. Bailey · Midland, US
• Michael L. Tulchinsky · Midland, US
• Andre B. Argenton · Midland, US
• Daniel J. Arriola · Midland, US
• Jerzy Klosin · Midland, US

Key dates

• Filing date: Dec 13, 2018
• Grant date: Nov 17, 2020
• Expiry date: Dec 13, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes to prepare lightly branched surfactant products comprise combining at least one olefin and a coordination-insertion catalyst under conditions such that at least one oligomer product is formed. The surfactant products comprise a main carbon chain containing an average of between 0.5 and 2.5 branches, wherein more than 50% of the branches are ethyl branches, wherein the branches are located more than one carbon away from each end of the main carbon chain in more than 20% of surfactant product molecules.