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

US10196336B2 · 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: Jun 18, 2014
• Grant date: Feb 5, 2019
• Expiry date: Jun 28, 2034

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.