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.:
Date of Patent:
Apr. 27, 2021
Filed:
Oct. 03, 2017
Applicant:
Lamberti Spa, Albizzate, IT;
Inventors:
Luigi Merli, Saronno, IT;
Erik Gallo, Mottalciata, IT;
Pierangelo Pirovano, Comerio, IT;
Giovanni Floridi, Novara, IT;
Giuseppe Li Bassi, Gavirate, IT;
Assignee:
Lamberti SPA, Albizzate, IT;
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/36 (2006.01); C09K 8/502 (2006.01); C09K 8/565 (2006.01); C09K 8/64 (2006.01); C09K 8/60 (2006.01);
U.S. Cl.
CPC ...
C09K 8/36 (2013.01); C09K 8/502 (2013.01); C09K 8/565 (2013.01); C09K 8/64 (2013.01); C09K 8/602 (2013.01);
Abstract
The present invention relates to a rheology modifier and to its use as thickener in oil-based subterranean treatment fluids; more particularly, the rheology modifier is an aqueous slurry of a pyromellitamide.