Wet and Dry Surface Adhesives
Assignee3M Innovative Properties Company
InventorsShinobu Sato, Shimpei Kudo, Gregg A. Patnode, Michael P. Daniels
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Abstract
A pressure sensitive adhesive comprising the polymerization product of a polymerizable composition comprising: (a) one or more (meth)acrylate ester monomers; (b) one or more hydrophilic non-acidic monomers; and (c) reactive, ionic surfactant. Also articles comprising such adhesives and methods for making such adhesives and such articles.
Claims18
A pressure sensitive adhesive comprising the polymerization product of a polymerizable composition comprising:
- (a) one or more (meth)acrylate ester monomers that when polymerized in the absence of other co-monomers yield a polymer or copolymer having a Tg of less than about 10° C.;
- (b) one or more hydrophilic non-acidic monomers, wherein the one or more (meth)acrylate ester monomers and the one or more hydrophilic non-acidic monomers are present in a ratio of about 1:1 to about 1.8:, wherein the polymerizable composition comprises 30 to 70 to 70 to 90 parts by weight of a mixture of one or more (meth)acrylate ester monomers and one or more hydrophilic non-acidic monomers;
- and
- (c) about 10 wt % to about 30 wt %, based on the total weight of polymerization product, of a reactive, ionic surfactant.
A hot melt pressure sensitive adhesive comprises a wet-stick pressure sensitive adhesive having a flow temperature and a thermoplastic packaging material enveloping said wet-stick pressure sensitive adhesive, said thermoplastic packaging material having a melting temperature lower than the flow temperature of the wet-stick pressure sensitive adhesive, wherein said pressure sensitive adhesive comprises the polymerization product of a polymerizable composition comprising:
- (a) one or more (meth)acrylate ester monomers that when polymerized in the absence of other co-monomers, yield a polymer or copolymer having a Tg of less than about 10° C.;
- (b) one or more hydrophilic non-acidic monomers, wherein the one or more (meth)acrylate ester monomers and the one or more hydrophilic non-acidic monomers are present in a ratio of about 1:1 to about 1.8:1, and
- (c) about 10 wt % to about 30 wt %, based on the total weight of polymerization product, of a reactive, ionic surfactant.
An article a substrate;
- and a hot melt pressure sensitive adhesive applied to a surface of said substrate, said hot melt adhesive comprising a mixture of a pressure sensitive adhesive having a flow temperature and a thermoplastic material having a melting temperature that is less than the flow temperature of the pressure sensitive adhesive, said pressure sensitive adhesive comprising the polymerization product of a polymerizable composition comprising:
- (a) one or more (meth)acrylate ester monomers that when polymerized in the absence of other co-monomers yield a polymer or copolymer having a Tg of less than about 10° C.;
- (b) one or more hydrophilic non-acidic monomers, wherein the one or more (meth)acrylate ester monomers and the one or more hydrophilic non-acidic monomers are present in a ratio of about 1:1 to about 1.8:1, and
- (c) about 10 wt % to about 30 wt %, based on the total weight of polymerization product, of a reactive, ionic surfactant.
15-17. (canceled)
Dependencies are inferred from the claim text.