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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 8551364 B1

PDFFull Text
Expired
Date of Patent:
Oct. 08, 2013

Filed:

Jun. 20, 2012

Process for inhibiting polymerization of an aromatic vinyl compound

Applicants:

Junichi Nakajima, Yokkaichi, JP;

Seiji Tanizaki, Yokkaichi, JP;

Inventors:

Junichi Nakajima, Yokkaichi, JP;

Seiji Tanizaki, Yokkaichi, JP;

Assignee:

Hakuto Co., Ltd., Tokyo, JP;

Attorney:

Flynn, Thiel, Boutell & Tanis, P.C.

Primary Examiner:

Harold Pyon

Assistant Examiner:

Tanisha Diggs

Int. Cl.
CPC ...
C09K 3/00 (2006.01); C09K 15/00 (2006.01); C09K 15/04 (2006.01); C09K 15/16 (2006.01); C09K 15/22 (2006.01); C09K 15/06 (2006.01); C07D 295/00 (2006.01); C07D 405/00 (2006.01); C07D 409/00 (2006.01); C07D 207/00 (2006.01); C07D 207/04 (2006.01); C07D 295/04 (2006.01); C08F 2/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for inhibiting polymerization of an aromatic vinyl compound during the stage of producing, purifying, storing or transporting the aromatic vinyl compound which not only inhibits an initial polymerization but also inhibits polymerization efficiently over a long period of time and which is excellent in handleability. The process involves the step of adding a nitrogenous aromatic compound in combination with a sulfonic acid compound to the aromatic vinyl compound during the production, purification, storage of transportation thereof.

Find Patent Forward Citations

Nakajima, Junichi. (2013). Process for inhibiting polymerization of an aromatic vinyl compound (U.S. Patent No. 8551364). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8551364

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

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