Patent · US Active

Process for producing methacrylic acid or methacrylic acid esters

US11905239B2 · kind B2 · utility

0Cited by

8References

19Claims

0Family size

Assignee

Röhm GmbH · DE

Inventors

Alexander May · Seeheim-Jugenheim, DE
Steffen Krill · Mühltal, DE
Marcel Treskow · Darmstadt, DE
Diego Carambia · José C. Paz, AR
Gabriel Avella · San Isidro, AR

Key dates

Filing date	Nov 17, 2022
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Nov 17, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB82Y40/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process can be used for producing methacrylic acid or a methacrylic acid ester. The process involves producing acrolein, reacting the produced acrolein with hydrogen to produce propanal, reacting the propanal with formaldehyde to produce methacrolein, and oxidizing the methacrolein in the presence of an oxygen containing gas and optionally an alcohol, to obtain methacrylic acid or methacrylic acid ester.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.