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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 6232273 B1

PDFFull Text
Date of Patent:
May. 15, 2001

Filed:

May. 07, 1998

Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it

Applicant:
Inventors:

Takashi Namba, Osaka, JP;

Yoshikazu Fujii, Hyogo, JP;

Takuya Saeki, Hyogo, JP;

Hiyora Kobayashi, Osaka, JP;

Assignee:

Nippon Shokubai Co., Ltd., Osaka, JP;

Attorney:

Sughrue, Mion, Zinn, Macpeak & Seas, PLLC

Primary Examiner:

Philip Tucker

Int. Cl.
CPC ...
C09K 3/00 ; C07C 9/00 ; B01D 4/700 ;
U.S. Cl.
CPC ...
C09K 3/00 ; C07C 9/00 ; B01D 4/700 ;
Abstract

Disclosed herein are clathrate hydrate inhibitors and the method of inhibiting the formation, agglomeration, and deposition of clathrate hydrate using the inhibitors. The clathrate hydrate inhibitor comprises a macromolecular compound in which 3-15 membered ring pendant is connected to the polymer main chain via a specific spacer group such as homo- or co-polymer of (meth)acryloyl pyrrolidine, pyrrolidinocarbonylethyl (meth)acrylate, 2-oxo-pyrrolidino-ethyl (meth)acrylate, glyoxyloyl pyrrolidine, pyrrolidinocarbonyl aspartate.

Find Patent Forward Citations

Namba, Takashi. (2001). Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it (U.S. Patent No. 6232273). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6232273

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

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