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:
Sep. 25, 2018
Filed:
Nov. 22, 2013
Applicant:
Isp Investments Inc., Wilmington, DE (US);
Inventors:
Cuiyue Lei, Wayne, NJ (US);
Osama M. Musa, Kinnelon, NJ (US);
Assignee:
ISP INVESTMENTS LLC, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/528 (2006.01); C09K 8/68 (2006.01); C09K 8/52 (2006.01); C08B 11/20 (2006.01); C08B 15/00 (2006.01); C08B 31/12 (2006.01); C08B 37/00 (2006.01); C08B 37/02 (2006.01); C08B 37/08 (2006.01); C09K 8/035 (2006.01); C08F 299/00 (2006.01); C08L 29/04 (2006.01); C08L 33/06 (2006.01); C08L 33/26 (2006.01);
U.S. Cl.
CPC ...
C09K 8/52 (2013.01); C08B 11/20 (2013.01); C08B 15/00 (2013.01); C08B 31/12 (2013.01); C08B 37/003 (2013.01); C08B 37/006 (2013.01); C08B 37/0018 (2013.01); C08B 37/0021 (2013.01); C08B 37/0033 (2013.01); C08B 37/0042 (2013.01); C08B 37/0045 (2013.01); C08B 37/0069 (2013.01); C08B 37/0072 (2013.01); C08B 37/0075 (2013.01); C08B 37/0096 (2013.01); C08F 299/00 (2013.01); C08L 29/04 (2013.01); C09K 8/035 (2013.01); C08L 33/064 (2013.01); C08L 33/066 (2013.01); C08L 33/26 (2013.01); C09K 2208/12 (2013.01);
Abstract
The present invention provides amidic polymers, which exhibit shale swelling inhibitor activity having improved biodegradability. The amidic polymers of the invention may be employed in a wide variety of compositions, particularly in subterranean drilling operations. Non-limiting generic structures of the amidic polymers are set out below: formula (1) wherein R-Rand integers m and n are defined herein.