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:
Aug. 03, 2021
Filed:
Jan. 23, 2017
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/80 (2006.01); C08L 61/06 (2006.01); C08L 83/12 (2006.01); E21B 43/267 (2006.01); C09K 8/62 (2006.01); C08G 77/14 (2006.01); C08G 77/46 (2006.01); C08G 77/445 (2006.01); C08L 83/06 (2006.01);
U.S. Cl.
CPC ...
C09K 8/805 (2013.01); C08L 61/06 (2013.01); C09K 8/62 (2013.01); E21B 43/267 (2013.01); C08G 77/14 (2013.01); C08G 77/445 (2013.01); C08G 77/46 (2013.01); C08L 83/06 (2013.01); C08L 83/12 (2013.01);
Abstract
Coated proppants useful in fracking operations in oil and gas production are coated with a novolac resin containing a linear or cyclic organopolysiloxane of specific composition. The coatings are more fracture resistant, thus producing less fines during use, resulting in longer production campaigns.