Wet-stick adhesives, articles, and methods
Assignee3M Innovative Properties Company
InventorsDonald H. Lucast, Dong-Wei Zhu
Life of this patent
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Abstract
A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.
Claims33
A wet-stick pressure-sensitive adhesive comprising:
- (a) at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer when homopolymerized has a Tg of less than about 10° C.;
- (b) at least one copolymerized hydrophilic acidic monomer;
- and
- (c) at least one nonreactive poly(alkylene oxide) copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophilic and at least one of which is hydrophobic.
An article comprising a backing and a wet-stick pressure-sensitive adhesive comprising:
- (a) at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer when homopolymerized has a Tg of less than about 10° C.;
- (b) at least one copolymerized hydrophilic acidic monomer;
- and
- (c) at least one nonreactive poly(alkylene oxide) copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophilic and at least one of which is hydrophobic.
A method of making a wet-stick pressure-sensitive adhesive, the method comprising combining under conditions effective to cause polymerization:
- (a) at least one monoethylenically unsaturated (meth)acrylic acid ester monomer, which when homopolymerized, has a Tg of less than about 10° C.;
- (b) at least one hydrophilic acidic monomer;
- and
- (c) at least one nonreactive poly(alkylene oxide) copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophilic and at least one of which is hydrophobic.
A method of using an adhesive article, the method comprising:
- providing an adhesive article comprising a backing and a wet-stick pressure-sensitive adhesive layer disposed thereon, wherein the wet-stick pressure-sensitive adhesive comprises:
- (a) at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer when homopolymerized has a Tg of less than about 10° C.;
- (b) at least one copolymerized hydrophilic acidic monomer;
- and
- (c) at least one nonreactive poly(alkylene oxide) copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophilic and at least one of which is hydrophobic;
- and
- adhering the adhesive article to skin.
Dependencies are inferred from the claim text.