Preparation of pressure sensitive adhesive dispersions from multi-stage emulsion polymerization for applications of protective films

The invention describes a preparation process of pressure sensitive adhesives,wherein a multi-stage emulsifier-free emulsion polymerization and applications of the obtained dispersions for pressure sensitive protective films are included. At least one carboxylic acid group containing monomer is used...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHEN YIMING, XIA JEFF JIANFENG, XIAO EDWARD SHUDE, SUN JIANHUA
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention describes a preparation process of pressure sensitive adhesives,wherein a multi-stage emulsifier-free emulsion polymerization and applications of the obtained dispersions for pressure sensitive protective films are included. At least one carboxylic acid group containing monomer is used in the first stage of emulsion polymerization. The theoretical glass transition temperatures are lower than 0 DEG C (for the first stage polymer), -20 DEG C (for the second stage polymer) and -15 DEG C (for the overall dispersion), respectively. The dispersion is preferably cross-linked with polyfunctional crosslinking agents, such as aziridine, isocyanate, carbodiimide and oxazoline. The adhesives obtained from the process thereof can be used for the application of protective films to reduce or eliminate ghost shadow on the protected surfaces.