公开(公告)号：US20160244595A1

公开(公告)日：2016-08-25

申请号：US15047776

申请日：2016-02-19

Applicant: BASF SE

Inventor： Bjoern Langlotz

IPC: C08K5/47

CPC classification number: C08K5/47 ,  C08F220/56 ,  C08L33/26

Abstract: The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St, wherein the acrylamide polymer P is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content in the range from 50% to 80% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising at least one stabilizer St selected from the group consisting of sulfur compounds, N-oxides, organic nitroso compounds, aromatic hydroxyl compounds and ketones.

Abstract translation: 本申请涉及一种制备包含至少一种丙烯酰胺聚合物P和至少一种稳定剂St的组合物的方法，其中丙烯酰胺聚合物P以聚合物凝胶的形式获得，并且丙烯酰胺聚合物凝胶的水含量为 基于总聚合物凝胶的50重量％至80重量％的范围用包含至少一种稳定剂St的水溶液SS处理，所述稳定剂St选自硫化合物，N-氧化物，有机亚硝基化合物，芳族羟基 化合物和酮类。

公开(公告)号：US10316170B2

公开(公告)日：2019-06-11

申请号：US15047747

申请日：2016-02-19

Applicant: BASF SE

Inventor： Bjoern Langlotz

IPC: C08K5/47 ,  C08F220/56 ,  C08F220/58 ,  C09K8/588

Abstract: The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St for preventing polymer degradation by molecular oxygen, wherein the acrylamide polymer P is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content of at least 30% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising 0.1% to 50% by weight, based on the overall aqueous solution SS, of the at least one stabilizer St.

公开(公告)号：US10100174B2

公开(公告)日：2018-10-16

申请号：US15047776

申请日：2016-02-19

Applicant: BASF SE

Inventor： Bjoern Langlotz

IPC: C08K5/47 ,  C08L33/26 ,  C08F220/56

Abstract: The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St, wherein the acrylamide polymer P is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content in the range from 50% to 80% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising at least one stabilizer St selected from the group consisting of sulfur compounds, N-oxides, organic nitroso compounds, aromatic hydroxyl compounds and ketones.

公开(公告)号：US11649396B2

公开(公告)日：2023-05-16

申请号：US16972823

申请日：2019-06-03

Applicant: BASF SE

Inventor： Bjoern Langlotz ,  Christian Bittner ,  Stefan Stein

IPC: C09K8/588 ,  C08F220/56 ,  C08K5/42 ,  E21B43/16 ,  C09K8/035

CPC classification number: C09K8/588 ,  C08F220/56 ,  C08K5/42 ,  C09K8/035 ,  C08F220/56 ,  C08F220/06 ,  C08F220/34

Abstract: The present invention relates to a process for the preparation of a water-soluble copolymer comprising the step of reacting a monomer (a) of formula (I), wherein Q1, Q2, R1 to R7 and X have the meaning as indicated in the description and claims with at least one monoethylenically unsaturated, anionic monomer (b), preferably representing a monoethylenically unsaturated monomer comprising at least one carboxy, phosphonate or sulfonate group and salts thereof, preferably their ammonium salts or alkaline-earth metal salts or alkali metal salts; and at least one monoethylenically unsaturated, non-ionic monomer (c). The present invention further relates to a copolymer obtainable by said process and its use in enhanced oil recovery (EOR), a formulation comprising said copolymer and a method of oil production uses said formulation.

公开(公告)号：US09765167B2

公开(公告)日：2017-09-19

申请号：US14908925

申请日：2014-07-29

Applicant: BASF SE

Inventor： Robert Haschick ,  Aleksandra Jelicic ,  John Scott Barratt ,  Pascal Hesse ,  Oliver Soetje ,  Gabriela Eugenia Fonseca Zepeda ,  Shankara Narayanan Keelapandal Ramamoorthy ,  Bjoern Langlotz

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08F220/56 ,  C08F2/32 ,  B01J19/12 ,  B01J19/24 ,  C08F220/06 ,  C08F220/20 ,  C08F226/10 ,  C08F220/38

CPC classification number: C08F220/56 ,  B01J19/123 ,  B01J19/24 ,  B01J2219/0869 ,  B01J2219/1203 ,  B01J2219/24 ,  C08F2/32 ,  C08F220/06 ,  C08F220/20 ,  C08F226/10 ,  C08F2220/382 ,  C08F2220/385 ,  C08F220/34

Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerization conditions to initiate polymerization to form polymerizing beads, wherein the polymerizing beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering water soluble or water swellable polymer beads from the suspension. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerization and polymer beads obtainable by the process or employing the apparatus.

公开(公告)号：US11613686B2

公开(公告)日：2023-03-28

申请号：US15734557

申请日：2019-06-03

Applicant: BASF SE

Inventor： Bjoern Langlotz ,  Christian Bittner ,  Stefan Stein

IPC: C08F220/56 ,  C08K5/42 ,  C09K8/035 ,  C08F2/10 ,  C08F293/00 ,  C09K8/588

Abstract: The present invention relates to a process for the preparation of a water-soluble copolymer comprising the step of reacting a monomer (a) of formula (I), (1) wherein Q1, Q2, R1 to R7 and X have the meaning as indicated in the description and claims with at least one monoethylenically unsaturated, anionic monomer (b), preferably representing a monoethylenically unsaturated monomer comprising at least one carboxy, phosphonate or sulfonate group and salts thereof, preferably their ammonium salts or alkaline-earth metal salts or alkali metal salts; and at least one monoethylenically unsaturated, non-ionic monomer (c). The present invention further relates to a copolymer obtainable by said process and its use in enhanced oil recovery (EOR), a formulation comprising said copolymer and a method of oil production uses said formulation.

公开(公告)号：US10927222B2

公开(公告)日：2021-02-23

申请号：US16096515

申请日：2017-04-20

Applicant: BASF SE

Inventor： Sandra Jeck ,  Oliver Soetje ,  Tobias Bringmann ,  Gabriela Eugenia Fonseca Zepeda ,  Dirk Meckelnburg ,  Dennis Loesch ,  Bjoern Langlotz ,  John Barratt ,  Faissal-Ali El-Toufaili ,  Hazel Sprafke ,  Bernd Schube ,  Markus Ostermayr

IPC: C08J3/05 ,  B01F5/02 ,  B01F5/04 ,  B01F5/20 ,  B01F7/00 ,  C08F220/04 ,  C08F220/56 ,  B01F3/12 ,  B01F1/00 ,  C08F2/10 ,  B01F5/00

Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.

公开(公告)号：US20160244594A1

公开(公告)日：2016-08-25

申请号：US15047747

申请日：2016-02-19

Applicant: BASF SE

Inventor： Bjoern Langlotz

IPC: C08K5/47

CPC classification number: C08K5/47 ,  C08F220/56 ,  C08F220/58 ,  C09K8/588 ,  C08F2220/585

Abstract: The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St for preventing polymer degradation by molecular oxygen, wherein the acrylamide polymer P is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content of at least 30% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising 0.1% to 50% by weight, based on the overall aqueous solution SS, of the at least one stabilizer St.

Abstract translation: 本申请涉及一种制备包含至少一种丙烯酰胺聚合物P和至少一种用于防止分子氧聚合物降解的稳定剂St的组合物的方法，其中丙烯酰胺聚合物P以聚合物凝胶的形式获得，并且丙烯酰胺 基于整体聚合物凝胶具有至少30重量％的水含量的聚合物凝胶用包含基于总体水溶液SS的0.1重量％至50重量％的至少一种 稳定器