Internal incorporation of hydrocarbon tackifiers in water-based (meth)acrylate adhesive compositions, reaction mixtures, methods, and articles
Assignee3M Innovative Properties Company
InventorsIbrahim A. El Hedok, Mahfuza B. Ali, Claudia M. Mulvaney, Elizabeth E. Johnson
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Abstract
Cationic or zwitterionic polymer adhesives, adhesive articles, aqueous polymerizable pre-adhesive reaction mixtures, and methods of preparation that include internal incorporation of a hydrocarbon tackifier. An aqueous polymerizable pre-adhesive reaction mixture includes one or more cationic (meth)acrylate monomers, one or more low Tg nonionic monomers having a (meth)acryloyl group, optionally one or more anionic (meth)acrylate monomers, and one or more hydrocarbon tackifiers.
Claims15
An aqueous polymerizable pre-adhesive reaction mixture comprising:
- water;
- one or more cationic (meth)acrylate monomers;
- and
- a dispersed phase comprising one or more low Tg nonionic monomers and one or more hydrocarbon tackifiers;
- wherein the low Tg nonionic monomers have a (meth)acryloyl group and have a Tg of no greater than 20° C. when homopolymerized.
An adhesive composition comprising 80 wt-% to 98 wt-% of a cationic or zwitterionic polymer and 2 wt-% to 20 wt-% of a hydrocarbon tackifier, based on the total weight of the cationic or zwitterionic polymer plus the hydrocarbon tackifier.
Dependencies are inferred from the claim text.