The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2025
Filed:
May. 26, 2020
Clariant International Ltd., Muttenz, CH;
CLARIANT INTERNATIONAL LTD, Muttenz, CH;
Abstract
Disclosed herein is a method for preparing ethoxylated glycerol esters (formula (I)) by reacting ethylene oxide with triglycerides (formula (II)) using a calcium catalyst. The catalyst is formed from calcium hydroxide (A), a C-Ccarboxylic acid (B) (formula (III)), and a strong acid (AC) (pKa≤3) derived from sulfur or phosphorus oxides. In formulae (I) and (II), R-Rare C-Calkyl chains, with ethoxylation units (m+n+o) averaging>5. In formula (III), Ris selected from saturated or unsaturated, linear or branched C-Calkyl chains, and R, R, R, and Rare hydrogen. The calcium hydroxide: carboxylic acid ratio (A):(B) is 1:1-1:5, while calcium hydroxide: strong acid ratio (A):(AC) is 5:1-1:1.