公开(公告)号：US10920001B2

公开(公告)日：2021-02-16

申请号：US16072552

申请日：2017-01-16

Applicant: BASF SE

Inventor： Reinhold J. Leyrer ,  Gledison Fonseca ,  Aaron Flores-Figueroa ,  Volodymyr Boyko ,  Robert Richard Dykstra ,  Mark Robert Sivik

IPC: C08F226/02 ,  C08F226/06 ,  C08F220/34 ,  C08F2/22 ,  C08F220/56 ,  C08F226/10 ,  C08F226/08 ,  C08F226/12

Abstract: The present invention relates to a process for obtaining a cationic polymer by polymerization of at least one cationic monomer, at least one crosslinker and optionally further monomers, such as nonionic monomers, associative monomers and/or chain transfer agents. The cationic polymer has an at least bimodal molecular weight distribution with at least one first peak (P1) and at least one second peak (P2), wherein the first peak has a lower average sedimentation coefficient of ≤100 Sved and the second peak has a higher average sedimentation coefficient of ≥1000 Sved. The polymerization is carried out in two subsequent steps I) and II). In step II), the crosslinker is either completely absent or present in a very limited amount. Step II) is carried out after the polymerization of step I is finished or vice versa.

公开(公告)号：US20200299426A1

公开(公告)日：2020-09-24

申请号：US16074100

申请日：2017-02-02

Applicant: BASF SE

Inventor： Johannes Barth ,  Gledison Fonseca ,  Dieter Faul ,  Martin Ernst ,  Juergen Detering ,  Ferdinand Leifeld ,  Gazi Tuerkoglu

IPC: C08F120/06 ,  C11D3/37 ,  C11D3/00

Abstract: A process for producing aqueous solutions of acrylic acid polymers by polymerization of acrylic acid in feed operation with a free-radical starter in the presence of hypophosphite in water as solvent, which comprises (i) initially charging water and optionally acrylic acid in acidic, unneutralized form, optionally one or more ethylenicaliy unsaturated comonomers, optionally aqueous hypophosphite solution and optionally initiator, (ii) adding acrylic acid in acidic, unneutralized form, optionally one or more ethylenicaliy unsaturated comonomers, aqueous free-radical starter solution and aqueous hypophosphite solution, (iii) adding a base to the aqueous solution after termination of the acrylic acid feed, wherein the comonomer content does not exceed 30 wt % based on the total monomer content, wherein the acrylic acid, the aqueous free-radical starter solution and the aqueous hypophosphite solution are added such that the molar ratio x of acrylic acid to phosphorus-bound hydrogen [AA]/[P—H] over a time period in which at least 75% of the acrylic acid is converted has a value x which is constant to within ±0.5 and is in the range from 0.8 to 2.

公开(公告)号：US10745494B2

公开(公告)日：2020-08-18

申请号：US16072321

申请日：2017-01-16

Applicant: BASF SE

Inventor： Reinhold J. Leyrer ,  Gledison Fonseca ,  Aaron Flores-Figueroa ,  Volodymyr Boyko ,  Robert Richard Dykstra ,  Mark Robert Sivik

IPC: C08F2/22 ,  C09D7/43 ,  C08F2/32 ,  C08F220/34 ,  C08F220/56 ,  C08F226/10 ,  C08L33/14

Abstract: Provided herein is a cationic polymer obtainable by polymerization of at least one cationic monomer, at least one crosslinker and optionally further monomers, such as nonionic monomers, associative monomers, and/or chain transfer agents. The cationic polymer has an at least bimodal molecular weight distribution with at least one first peak (P1) and at least one second peak (P2), wherein the first peak has a rather low average sedimentation coefficient of ≤10 Sved and the second peak has a rather high average sedimentation coefficient of ≥10,000 Sved. The water-soluble polymer components of the cationic polymer are ≥25% by weight related to the total amount of cationic polymer. Further provided herein is a process for obtaining such a cationic polymer as well as to an inverse dispersion, a thickener or a deposition aid, including at least one of such cationic polymers.

公开(公告)号：US09574077B2

公开(公告)日：2017-02-21

申请号：US14987394

申请日：2016-01-04

Applicant: BASF SE

Inventor： Matthias Gerst ,  Gerhard Auchter ,  Gledison Fonseca ,  Cornelis Petrus Beyers

IPC: C08F2/16 ,  C08L19/02 ,  C08L25/04 ,  C08L33/12 ,  C08F220/12 ,  C09J133/06

CPC classification number: C08L33/12 ,  C08F220/12 ,  C08L25/04 ,  C09J133/066 ,  Y10T428/2852

Abstract: The present invention relates to aqueous polymer dispersions having a polymer content of at least 55% by weight that are suitable for pressure sensitive adhesives. The invention also relates to a process for preparing these aqueous polymer dispersions and also to the use of the aqueous polymer dispersions in pressure sensitive adhesives and, respectively, pressure sensitive adhesive compositions, especially in pressure sensitive adhesives for transparent substrates, such as plastics labels. The aqueous polymer dispersions have a polymer content of at least 55% by weight, based on the total weight of the dispersion, the polymer being composed of ethylenically unsaturated monomers M and having a glass transition temperature below −10° C., in which the dispersed polymer particles have a polymodal particle size distribution, in which at least 70% by weight have a particle diameter of below 350 nm.

Abstract translation: 本发明涉及聚合物含量为至少55重量％的聚合物分散体，其适用于压敏粘合剂。 本发明还涉及一种制备这些含水聚合物分散体的方法，还涉及使用压敏粘合剂中的聚合物水分散体和压敏粘合剂组合物，特别是用于透明基材例如塑料标签的压敏粘合剂。 聚合物水分散体的聚合物含量至少为55重量％，基于分散体的总重量，聚合物由烯键式不饱和单体M组成并具有低于-10℃的玻璃化转变温度，其中 分散的聚合物颗粒具有多晶粒度分布，其中至少70重量％的粒径小于350nm。

公开(公告)号：US20190062478A1

公开(公告)日：2019-02-28

申请号：US16072552

申请日：2017-01-16

Applicant: BASF SE

Inventor： Rheinhold J. Leyrer ,  Gledison Fonseca ,  Aaron Flores-Figueroa ,  Volodymyr Boyko ,  Robert Richard Dykstra ,  Mark Robert Sivik

IPC: C08F220/34 ,  C08F226/10 ,  C08F226/06

Abstract: A process for obtaining a cationic polymer is disclosed. The cationic polymer is obtained by polymerization of at least one cationic monomer, at least one crosslinker and optionally further monomers, such as nonionic monomers, associative monomers and/or chain transfer agents. The cationic polymer has an at least bimodal molecular weight distribution with at least one first peak (P1) and at least one second peak (P2), wherein the first peak has a lower average sedimentation coefficient of 100 Sved and the second peak has a higher average sedimentation coefficient of 1000 Sved. The polymerization is carried out in two subsequent steps I) and II). In step II), the crosslinker is either completely absent or present in a very limited amount. Step II) is carried out after the polymerization of step I) is finished or vice versa.

公开(公告)号：US09976060B2

公开(公告)日：2018-05-22

申请号：US15322955

申请日：2015-06-15

Applicant: BASF SE

Inventor： Joerg-Alexander Dimmer ,  Michael Gross ,  Gledison Fonseca ,  Miriam Mueller ,  Anja Hubert

IPC: C09J7/02 ,  C09J5/00 ,  C09J133/08

CPC classification number: C09J7/385 ,  C08F220/14 ,  C08F220/18 ,  C08F2220/1858 ,  C09J4/00 ,  C09J5/00 ,  C09J133/06 ,  C09J133/08 ,  C09J2205/114 ,  C09J2433/00

Abstract: A description is given of a method, and of pressure-sensitive adhesive compositions suitable therefor, for bonding a substrate to cold and damp surfaces, the surface temperature being lower than the dewpoint temperature of the air in contact with the surface, and the pressure-sensitive adhesive composition comprising a pressure-sensitive adhesive polymer formed from defined amounts of 2-ethylhexyl acrylate, monomers selected from C1 to C2 alkyl (meth)acrylates, styrene, acid monomers, and optionally further monomers, in the presence of chain transfer agents.

公开(公告)号：US20170204212A1

公开(公告)日：2017-07-20

申请号：US15327865

申请日：2015-06-26

Applicant: BASF SE

Inventor： Reinhold J Leyrer ,  Gledison Fonseca ,  Volodymyr Boyko ,  Mark Robert Sivik ,  Travis Kyle Hodgdon

IPC: C08F220/56 ,  A61K8/81 ,  A61Q19/00 ,  C11D3/00 ,  A61Q5/00

CPC classification number: C08F220/56 ,  A61K8/04 ,  A61K8/8158 ,  A61K2800/48 ,  A61K2800/5426 ,  A61Q5/00 ,  A61Q19/00 ,  C08F2/14 ,  C08F2/32 ,  C08F220/34 ,  C11D3/001 ,  C08F2222/1026 ,  C08F2222/104 ,  C08F222/385 ,  C08F216/125

Abstract: The present invention relates to an inverse dispersion including at least one cationic polymer and at least one stabilizing agent as well as at least a tri- and/or polyfunctional crosslinker wherein the stabilizing agent has one or more hydrophobic chains with more than 30 carbon atoms. The polymer is obtainable by polymerizing at least one cationic monomer and optionally at least one nonionic monomer. Furthermore, the present invention relates to a process for manufacturing the inverse dispersion by inverse emulsion polymerization.

公开(公告)号：US09481742B2

公开(公告)日：2016-11-01

申请号：US14784305

申请日：2014-04-07

Applicant: BASF SE

Inventor： Christian Schade ,  Faissal-Ali El-Toufaili ,  Aaron Flores-Figueroa ,  Gledison Fonseca ,  Michaela Heuβler ,  Christian Schwede ,  Helmut Witteler

IPC: C08F2/00 ,  C08F20/06 ,  B01J19/00 ,  C08F20/00 ,  C08F2/01 ,  C08F2/10 ,  C08F2/16 ,  C08F120/06 ,  C08F120/14

CPC classification number: C08F20/06 ,  B01J19/0093 ,  C08F2/01 ,  C08F2/10 ,  C08F2/16 ,  C08F20/00 ,  C08F120/06 ,  C08F120/14

Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.

Abstract translation: 本发明涉及通过自由基聚合制备C3-C8烯键式不饱和单羧酸或二羧酸的高度支化的均聚物或共聚物以及其酸酐和其盐（单体A）的连续方法 单体A和任选的水溶性单烯属不饱和共聚单体（单体B）在水介质中，在至少一种水溶性引发剂存在下，其中聚合在至少一个管式反应器段中进行。

公开(公告)号：US20190315890A1

公开(公告)日：2019-10-17

申请号：US16072321

申请日：2017-01-16

Applicant: BASF SE

Inventor： Rheinhold J. Leyrer ,  Gledison Fonseca ,  Aaron Flores-Figueroa ,  Volodymyr Boyko ,  Robert Richard Dykstra ,  Mark Robert Sivik

IPC: C08F2/22 ,  C08F220/34 ,  C08L33/14 ,  C08F220/56 ,  C08F226/10 ,  C09D7/43 ,  C08F2/32

Abstract: Provided herein is a cationic polymer obtainable by polymerization of at least one cationic monomer, at least one crosslinker and optionally further monomers, such as nonionic monomers, associative monomers, and/or chain transfer agents. The cationic polymer has an at least bimodal molecular weight distribution with at least one first peak (P1) and at least one second peak (P2), wherein the first peak has a rather low average sedimentation coefficient of ≤10 Sved and the second peak has a rather high average sedimentation coefficient of ≥10,000 Sved. The water-soluble polymer components of the cationic polymer are ≥25% by weight related to the total amount of cationic polymer. Further provided herein is a process for obtaining such a cationic polymer as well as to an inverse dispersion, a thickener or a deposition aid, including at least one of such cationic polymers.

公开(公告)号：US20160115310A1

公开(公告)日：2016-04-28

申请号：US14987394

申请日：2016-01-04

Applicant: BASF SE

Inventor： Matthias Gerst ,  Gerhard Auchter ,  Gledison Fonseca ,  Cornelis Petrus Beyers

IPC: C08L33/12 ,  C08L25/04

CPC classification number: C08L33/12 ,  C08F220/12 ,  C08L25/04 ,  C09J133/066 ,  Y10T428/2852

Abstract: The present invention relates to aqueous polymer dispersions having a polymer content of at least 55% by weight that are suitable for pressure sensitive adhesives. The invention also relates to a process for preparing these aqueous polymer dispersions and also to the use of the aqueous polymer dispersions in pressure sensitive adhesives and, respectively, pressure sensitive adhesive compositions, especially in pressure sensitive adhesives for transparent substrates, such as plastics labels. The aqueous polymer dispersions have a polymer content of at least 55% by weight, based on the total weight of the dispersion, the polymer being composed of ethylenically unsaturated monomers M and having a glass transition temperature below −10° C., in which the dispersed polymer particles have a polymodal particle size distribution, in which at least 70% by weight have a particle diameter of below 350 nm.

Abstract translation: 本发明涉及聚合物含量为至少55重量％的聚合物分散体，其适用于压敏粘合剂。 本发明还涉及一种制备这些含水聚合物分散体的方法，还涉及使用压敏粘合剂中的聚合物水分散体和压敏粘合剂组合物，特别是用于透明基材例如塑料标签的压敏粘合剂。 聚合物水分散体的聚合物含量至少为55重量％，基于分散体的总重量，聚合物由烯键式不饱和单体M组成并具有低于-10℃的玻璃化转变温度，其中 分散的聚合物颗粒具有多晶粒度分布，其中至少70重量％的粒径小于350nm。