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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.:

US 11905239 B1

PDFFull Text
Date of Patent:
Feb. 20, 2024

Filed:

Nov. 17, 2022

Process for producing methacrylic acid or methacrylic acid esters

Applicant:

Röhm Gmbh, Darmstadt, DE;

Inventors:

Alexander May, Seeheim-Jugenheim, DE;

Steffen Krill, Muehltal, DE;

Marcel Treskow, Mobile, AL (US);

Diego Carambia, Jose C. Paz, AR;

Gabriel Avella, San Isidro, AR;

Assignee:

Röhm GmbH, Darmstadt, DE;

Attorney:

Grüneberg and Myers, PLLC

Primary Examiner:

Yevgeny Valenrod

Assistant Examiner:

Blaine G Doletski

Int. Cl.
CPC ...
C07C 67/39 (2006.01); B01J 23/38 (2006.01); B01J 35/02 (2006.01); C07C 45/75 (2006.01); C07C 45/83 (2006.01); C07C 51/25 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
C07C 67/39 (2013.01); B01J 23/38 (2013.01); B01J 35/023 (2013.01); C07C 45/75 (2013.01); C07C 45/83 (2013.01); C07C 51/252 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01);
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.

Find Patent Forward Citations

May, Alexander. (2024). Process for producing methacrylic acid or methacrylic acid esters (U.S. Patent No. 11905239). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11905239

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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