Isobutylene (co)polymeric adhesive composition

1. An adhesive article comprising a substrate and a layer of pressure-sensitive adhesive on at least one surface of the substrate, the adhesive comprising:

a) greater than 50 wt. % of a non-functional isobutylene (co)polymer,

b) 0.25 to 20 wt. % of an amine-functional poly(isobutylene) polymer,

c) 0.5 to 5 wt. % of an acid-functional (meth)acrylate copolymer,

d) 0 to 40 wt. % of a tackifier; and

e) 0 to 40 wt. % of a plasticizer;

wherein the adhesive has a storage modulus of 3×10 6 dynes/cm 2 at room temperature and oscillation frequency of 1 Hz; and

wherein the adhesive combined 25-35wt % of the amine-functional poly(isobutylene) polymer and the tackifier.

2. The adhesive article of claim 1 wherein the acid-functional (meth)acrylate copolymer comprises 80 to 99 wt. % of (meth)acrylic acid ester monomers and 1 to 20 wt. % of acid-functional monomers.

3. The adhesive article of claim 1 wherein said amine-functional poly(isobutylene) polymer has a number average molecular weight of less than 10,000 g/mole.

4. The adhesive article of claim 1 wherein the (meth)acrylic acid ester monomers is a C 4 to C 20 (meth)acrylic acid ester monomers.

5. The adhesive article of claim 4 wherein the (meth)acrylic acid ester monomers is a C 4 to C 8 (meth)acrylic acid ester monomer.

6. The adhesive article of claim 1 wherein the adhesive further comprises a tackifying resin, a plasticizer, or a mixture thereof.

7. The adhesive article of claim 1 , wherein the amine-functional poly(isobutylene) polymer is of the general formula:

wherein

R 1 is a polymeric radical of isobutylene having 5 to 100 repeat units, and R 2 and R 3 are independently selected from H, C 1 -C 10 -alkyl or aryl groups.

8. The adhesive article of claim 1 wherein the adhesive comprises 1 to 15 wt. % of the amine-functional poly(isobutylene) polymer.

9. The adhesive article of claim 1 wherein the adhesive further comprises 1 to 40 wt. % tackifier.

10. The adhesive article of claim 1 wherein the substrate in a polymer film substrate.

11. The adhesive article of claim 1 wherein the substrate in a nonwoven substrate.

12. The adhesive article of claim 1 comprising a layer of the pressure-sensitive adhesive on a release liner substrate.

13. The adhesive article of claim 1 comprising layers of pressure-sensitive adhesive on two surfaces of the substrate.

14. The adhesive article of claim 1 wherein the substrate is a foam substrate.