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1. (WO2018141489) ONE-COMPONENT PRESSURE-SENSITIVE ADHESIVE COMPOSITION HAVING GEL CONTENT BASED ON REVERSIBLE CROSSLINKING VIA METAL SALTS

Pub. No.:    WO/2018/141489    International Application No.:    PCT/EP2018/050011
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Jan 03 00:59:59 CET 2018
IPC: C08K 5/098
C09J 133/02
C09J 133/10
Applicants: BASF SE
Inventors: GERST, Matthias
MOEBIUS, Stephan
WULFF, Dirk
GROSS, Michael
Title: ONE-COMPONENT PRESSURE-SENSITIVE ADHESIVE COMPOSITION HAVING GEL CONTENT BASED ON REVERSIBLE CROSSLINKING VIA METAL SALTS
Abstract:
Described is a one-component pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion containing at least one pressure-sensitive adhesive polymer formed by emulsion polymerization from soft (meth)acrylic ester monomers, methacrylic acid and optionally further monomers, wherein the polymerization is carried out in the presence of molecular weight regulators or styrene. The pressure-sensitive adhesive polymer has a gel content based at least partly on a reversible crosslinking via metal salts. The one-component pressure-sensitive adhesive composition may be used for producing adhesive labels, adhesive tapes or adhesive films.