公开(公告)号：US20190390091A1

公开(公告)日：2019-12-26

申请号：US16482119

申请日：2018-01-02

Applicant: BASF SE

Inventor： Matthias GERST ,  Stephan MOEBIUS ,  Dirk WULFF ,  Michael GROSS

IPC: C09J133/10 ,  C09J133/02 ,  C09J125/06 ,  C08F2/22 ,  C08F212/08

Abstract: A description is given of a one-component pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising at least one pressure-sensitive adhesive polymer which is formed by emulsion polymerization of soft (meth)acrylic ester monomers, methacrylic acid, and optionally further monomers, where the polymerization takes place in the presence of chain transfer agents or styrene. The pressure-sensitive adhesive polymer has a gel content which is based at least partly on a reversible crosslinking via metal salts. The one-component pressure-sensitive adhesive composition can be used for producing adhesive labels, adhesive tapes or adhesive foils.

公开(公告)号：US20240392168A1

公开(公告)日：2024-11-28

申请号：US18695399

申请日：2022-09-20

Applicant: BASF SE

Inventor： Friederike FLEISCHHAKER ,  Michael GROSS ,  Christoph FLECKENSTEIN ,  Andrea MISSKE ,  Matthias GERST ,  Sabine EICHHORN

IPC: C09J7/38 ,  C09J133/10

Abstract: Described is a pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising a dispersed pressure-sensitive adhesive polymer formed by emulsion polymerization of isobutyl acrylate, 2-ethylhexyl acrylate and/or 1-octyl acrylate and styrene, monomers having at least one acid group and optionally further monomers. The pressure-sensitive adhesive composition may be used to produce self-adhesive articles such as self-adhesive labels, self-adhesive tapes or self-adhesive films.

公开(公告)号：US20170198180A1

公开(公告)日：2017-07-13

申请号：US15326160

申请日：2015-07-10

Applicant: BASF SE

Inventor： Matthias GERST ,  Michael GROSS ,  Valerie WILMS ,  Lisa HOUILLOT

IPC: C09J133/08

CPC classification number: C09J133/08 ,  C08L2201/54 ,  C09J7/385 ,  C09J103/02 ,  C09J105/00 ,  C09J133/066 ,  C09J2205/114 ,  C09J2405/00 ,  C09J2433/00

Abstract: The present invention relates to a formulation comprising: i) an aqueous polymer dispersion comprising: a) at least one homo- or copolymer P containing in the form of polymerized units at least one ethylenically unsaturated monomer; b) at least 6% by weight, based on the total of the ethylenically unsaturated monomer, of at least one saccharide-compound S; wherein in a) the at least one homo- or copolymer P is obtained by polymerization of the at least one ethylenically unsaturated monomer in the presence of at least a part of the at least one saccharide-compound S from b); ii) at least one tackifier.

公开(公告)号：US20220282133A1

公开(公告)日：2022-09-08

申请号：US17631936

申请日：2020-07-28

Applicant: BASF SE

Inventor： Matthias GERST ,  Stephan MOEBIUS ,  Michael GROSS ,  Dirk WULFF

IPC: C09J133/06 ,  C08F220/18 ,  C09J7/38 ,  C09J7/25 ,  C09J7/24

Abstract: Method of improving shear stability of highly concentrated aqueous adhesive polymer compositions comprising a specific adhesive polymer which has been prepared by emulsion polymerization and which is dispersed in the aqueous adhesive composition. Said method comprises treating the aqueous adhesive polymer composition with at least one anion exchange resin.

公开(公告)号：US20180258322A1

公开(公告)日：2018-09-13

申请号：US15542131

申请日：2015-12-07

Applicant: BASF SE

Inventor： Christine TONHAUSER ,  Petra ARNOLD ,  Holger KERN ,  Michael GROSS

IPC: C09J7/25 ,  C09J7/38 ,  C09J175/04 ,  C08F220/18

CPC classification number: C09J7/25 ,  C08F220/18 ,  C08F2220/1825 ,  C08G18/625 ,  C08G18/6484 ,  C08G18/706 ,  C08G18/792 ,  C08G2170/40 ,  C08G2170/80 ,  C09J7/22 ,  C09J7/38 ,  C09J133/02 ,  C09J175/04 ,  C09J2201/122 ,  C09J2203/314 ,  C09J2403/00 ,  C09J2433/00 ,  C08F220/06 ,  C08F2220/1858

Abstract: Disclosed herein is a pressure-sensitively adhesive protective film formed from a polymer film coated with a crosslinked pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition contains a pressure-sensitive adhesive polymer which is formed by emulsion polymerization in the presence of saccharified starch from soft monomers which when polymerized as a homopolymer have a glass transition temperature of less than 0° C., from ethylenically unsaturated acids or acid anhydrides, and optionally further monomers different from (i) and (ii). The pressure-sensitive adhesive composition contains defined crosslinkers, with the crosslinking reaction brought about by the crosslinker being at an end before the pressure-sensitively adhesive protective film is adhered to a substrate.