公开(公告)号：US11384177B2

公开(公告)日：2022-07-12

申请号：US16759244

申请日：2018-10-18

Applicant: BASF SE

Inventor： Tobias Joachim Zimmermann ,  Faissal-Ali El-Toufaili ,  Hazel Sprafke

IPC: C08J3/07 ,  C08F20/56 ,  C08F220/56 ,  C08K5/3435 ,  C08K5/47 ,  C09K8/588 ,  C09K8/68 ,  C12P13/02 ,  E21B43/20 ,  E21B43/267 ,  E21B21/00

Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide obtained by hydrolyzing acrylonitrile in water in the presence of a biocatalyst capable of converting acrylonitrile to acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The aqueous polyacrylamide gel furthermore comprises at least one stabilizer for prevention of polymer degradation.

公开(公告)号：US20200214283A9

公开(公告)日：2020-07-09

申请号：US16099808

申请日：2017-05-11

Applicant: BASF SE

Inventor： Timothy H Anderson ,  Dean A Oester ,  Andrew P Chiromo ,  Tobias Joachim Zimmermann

IPC: A01N25/10 ,  A01N57/20 ,  A01N37/10 ,  A01N43/40

Abstract: An aqueous agricultural composition includes a pesticide, water, and a co-polymer. The co-polymer is the reaction product of an acrylamide monomer and a macromonomer. The acrylamide monomer and the macromonomer react together in the absence of an anionic monoethylenically unsaturated monomer including an acidic group chosen from —COOH, —SO3H, —PO3H2 and associated salts. The disclosed aqueous agricultural composition may be incorporated into agricultural spray operations and demonstrates effective reduction of driftable droplets.

公开(公告)号：US11725102B2

公开(公告)日：2023-08-15

申请号：US17286477

申请日：2019-10-17

Applicant: BASF SE

Inventor： Faissal-Ali El-Toufaili ,  Dennis Loesch ,  Anna-Corina Schmidt ,  Tobias Joachim Zimmermann ,  Markus Ostermayr ,  Jack F. Tinsley ,  Brent Busby ,  Daniel Barrera-Medrano

IPC: C09K8/588 ,  C08L33/26 ,  E21B43/16

CPC classification number: C08L33/26 ,  C09K8/588 ,  E21B43/162

Abstract: Process of providing polyacrylamides to a site-of-use comprising at least the steps of mixing a polyacrylamide powder at a manufacturing site with an aqueous liquid, thereby obtaining a homogeneous aqueous polyacrylamide concentrate, transporting said concentrate in a transport unit from the manufacturing site to the site-of-use, and removing the homogeneous aqueous concentrate from the transport unit at the site-of-use. Process of treating subterranean, oil and/or gas bearing formations by injecting an aqueous treatment fluid into at least one wellbore, wherein the aqueous treatment fluid is manufactured by mixing at least an aqueous base fluid with said homogeneous aqueous polyacrylamide concentrate at the site-of-use.

公开(公告)号：US11608468B2

公开(公告)日：2023-03-21

申请号：US17286469

申请日：2019-10-17

Applicant: BASF SE

Inventor： Faissal-Ali El-Toufaili ,  Dennis Loesch ,  Anna-Corina Schmidt ,  Tobias Joachim Zimmermann ,  Markus Ostermayr ,  Jack F. Tinsley ,  Brent Busby

IPC: C09K8/68 ,  E21B43/267 ,  C09K8/88 ,  E21B15/00

Abstract: Process of fracturing subterranean, oil-and/or gas-bearing formations by injecting an aqueous fracturing fluid into a wellbore at a rate and pressure sufficient to penetrate into the formation, and to initiate or extend fractures in the formation, wherein the aqueous fracturing fluid is obtained by mixing at least an aqueous base fluid and an aqueous polyacrylamide concentrate having a concentration of 3.1 to 14.9% by weight of polyacrylamides, relating to the total of all components of the aqueous polyacrylamide concentrate, and wherein at least a part of the aqueous fracturing fluid injected additionally comprises a proppant.

公开(公告)号：US20210348200A1

公开(公告)日：2021-11-11

申请号：US17286372

申请日：2019-10-17

Applicant: BASF SE

Inventor： Diego Ghislieri ,  Peter Oedman ,  Tobias Joachim Zimmermann ,  Anna-Corina Schmidt

IPC: C12P7/40 ,  C12N9/78 ,  C12M1/02 ,  C12M1/00

Abstract: The present invention relates to a process for preparing ammonium (meth-) acrylate, aqueous ammonium (meth-) acrylate solutions obtainable by such process, and (meth-) acrylic acid homopolymers or copolymers obtainable by polymerizing such ammonium (meth-) acrylate. The invention furthermore relates to a modular, relocatable bioconversion unit for manufacturing aqueous ammonium (meth-) acrylate solutions.

公开(公告)号：US20210340518A1

公开(公告)日：2021-11-04

申请号：US17286328

申请日：2019-10-09

Applicant: BASF SE

Inventor： Diego Ghislieri ,  Tobias Joachim Zimmermann ,  Stefan Seemayer ,  Michael Breuer ,  Doreen Schactschabel

IPC: C12N9/78 ,  C12P7/40

Abstract: Described herein are methods for the production of ammonium acrylate or salts thereof from acrylonitrile using nitrilase as a catalyst.