公开(公告)号：WO2020081298A1

公开(公告)日：2020-04-23

申请号：PCT/US2019/055241

申请日：2019-10-08

Applicant: BASF SE ,  ANDERSON, Timothy H.

Inventor： ANDERSON, Timothy H. ,  OESTER, Dean A. ,  LONG, Melvin

IPC: A01N25/02 ,  A01N25/04 ,  A01N25/06 ,  A01N25/30 ,  C08L39/00 ,  C08L71/02 ,  C08L33/26

Abstract: The present disclosure provides compositions and methods for stabilizing the ability of hydrated polyacrylamide co-polymers to modify the physical properties of water solutions under high shear conditions. The compositions generally comprise a water solution including at least one hydrated polyacrylamide co-polymer; and at least one additive selected from the group consisting of i) a component having the formula of Formula 1, wherein Formula 1 is R 1 -O-EO a -PO b -EO c -PO d -R 2 , wherein R 1 is hydrogen or any C 1 to C 18 carbon or carbon chain; O is oxygen, EO a is –(CH 2 CH 2 -O) a where a can be from 0-500; PO b is –(CH(CH 3 )CH 2 -O) b where b can be from 0-70; EO c is –(CH 2 CH 2 -O) c where c can be from 0-150; PO d is –CH(CH 3 )CH 2 -O) d where d is from 0-30; and R 2 is hydrogen or any C 1 to C 18 carbon or carbon chain; ii) a tetra functional block copolymer; iii) a polyvinylpyrrolidone (PVP) homopolymer; and iv) any combination thereof.

公开(公告)号：EP4440307A1

公开(公告)日：2024-10-09

申请号：EP22822476.2

申请日：2022-11-28

Applicant: BASF SE

Inventor： KLIMA, Rodney F. ,  OESTER, Dean A.

IPC: A01N25/04 ,  A01P3/00 ,  A01N43/54 ,  A01N43/653

CPC classification number: A01P3/00 ,  A01N25/04