申请人:ISP INVESTMENTS INC
公开号:WO2014088850A2
公开(公告)日:2014-06-12
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: ( l ) wherein R1-R3 and integers m and n are defined herein.