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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 10793448 B1

PDFFull Text
Date of Patent:
Oct. 06, 2020

Filed:

Sep. 05, 2018

Dehydration of water containing source of formaldehyde, and a method for producing an ethylenically unsaturated carboxylic ester

Applicant:

Lucite International Uk Limited, Southampton, GB;

Inventors:

Yoshiyuki Himeno, Hiroshima, JP;

Ken Ooyachi, Hiroshima, JP;

Masahide Kondo, Hiroshima, JP;

Assignee:

Lucite International UK Limited, Southhampton, GB;

Attorney:

Shumaker, Loop & Kendrick, LLP

Primary Examiner:

Ryan B Huang

Int. Cl.
CPC ...
C02F 1/44 (2006.01); B01D 61/36 (2006.01); C07C 67/343 (2006.01); C07C 45/78 (2006.01); C07C 67/56 (2006.01); B01D 71/02 (2006.01); C02F 101/34 (2006.01);
U.S. Cl.
CPC ...
C02F 1/448 (2013.01); B01D 61/362 (2013.01); B01D 71/028 (2013.01); C07C 45/786 (2013.01); C07C 67/343 (2013.01); C07C 67/56 (2013.01); C02F 2101/34 (2013.01); Y02P 20/582 (2015.11);
Abstract

Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.

Find Patent Forward Citations

Himeno, Yoshiyuki. (2020). Dehydration of water containing source of formaldehyde, and a method for producing an ethylenically unsaturated carboxylic ester (U.S. Patent No. 10793448). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10793448

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

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