Adhesive articles including a nanoparticle primer and methods for preparing same

• US 20050064183A1
• Filed: 10/20/2003
• Published: 03/24/2005
• Est. Priority Date: 09/23/2003
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Lunsford, Duane A., Baran, Jimmie Rae Jr.
• Application Number:
  US10/689,172
• Publication Number:
  US 20050064183A1
• Time in Patent Office: Days
• US Class Current: 428/354
• CPC Class Codes: B32B 5/16 characterised by features of a layer formed of particles, e.g. chips, powder or granules layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: C08J 2203/22 Expandable microspheres, e.g. Expancel®
• CPC Class Codes: C08J 2333/04 esters
• CPC Class Codes: C08J 9/32 from compositions containing microballoons, e.g. syntactic foams
• CPC Class Codes: C09J 2423/006 in the substrate
• CPC Class Codes: C09J 2431/006 in the substrate
• CPC Class Codes: C09J 2433/00 Presence of (meth)acrylic polymer
• CPC Class Codes: C09J 2433/006 in the substrate
• CPC Class Codes: C09J 2475/00 Presence of polyurethane
• CPC Class Codes: C09J 2483/00 Presence of polysiloxane
• CPC Class Codes: C09J 7/26 Porous or cellular plastics
• CPC Class Codes: C09J 7/50 characterised by a primer layer between the carrier and the adhesive
• CPC Class Codes: Y10T 428/249983 As outermost component
• CPC Class Codes: Y10T 428/249985 Composition of adhesive or bonding component specified
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2843 including a primer layer
• CPC Class Codes: Y10T 428/2848 Three or more layers
• CPC Class Codes: Y10T 428/2891 including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof

Abstract

Adhesive articles comprising a primer consisting essentially of nanoparticles and methods of making the adhesive articles are provided. The adhesive article may include a polymeric foam substrate and/or an adhesive comprising less than 5% by weight of acrylic acid units.

Claims

1. An adhesive article comprising:

(a) a first substrate comprising a first major surface;

(b) a first adhesive, wherein the first adhesive comprises no more than 5% by weight acrylic acid repeat units; and

(c) a first primer interposed between at least a portion of the first major surface of the substrate and at least a portion of the adhesive, wherein the first primer consists essentially of nanoparticles.

2. The adhesive article of claim 1, wherein the first substrate is untreated.

3. The adhesive article of claim 1, wherein the first substrate comprises a polymeric film.

4. The adhesive article of claim 1, wherein the first substrate comprises a foam.

5. The adhesive article of claim 4, wherein the foam comprises a polymer selected from the group consisting of:

acrylic, polyethylene, ethylene vinyl acetate, and combinations thereof.

6. The adhesive article of claim 1, wherein the first adhesive comprises at least one of:

silicone polyurea and acrylate.

7. The adhesive article of claim 1, wherein the nanoparticles have a maximum cross-sectional dimension of no more than 20 nanometers.

8. The adhesive article of claim 1, wherein the nanoparticles are selected from the group consisting of:

silica, ceria, iron oxide, and combinations thereof.

9. The adhesive article of claim 1, wherein the nanoparticles are surface modified.

10. The adhesive article of claim 1, further comprising a second primer interposed between at least a portion of the second major surface of the first substrate and at least a portion of a second adhesive.

11. The adhesive article of claim 1, further comprising a second primer interposed between at least a portion of a first major surface of a second substrate and at least a portion of the first adhesive.

12. An adhesive article comprising:

(a) a foam substrate;

(b) a first adhesive; and

(c) a first primer interposed between the foam substrate and the first adhesive, wherein the primer consists essentially of nanoparticles.

13. The adhesive article of claim 12, wherein the foam substrate comprises a polymer selected from the group consisting of:

acrylic, polyethylene, ethylene vinyl acetate, and combinations thereof.

14. The adhesive article of claim 12, wherein the first adhesive comprises at least one of:

silicone polyurea and acrylate.

15. The adhesive article of claim 12, wherein the nanoparticles have a maximum cross-sectional dimension of no more than 20 nanometers.

16. The adhesive article of claim 12, wherein the nanoparticles are selected from the group consisting of:

silica, ceria, iron oxide, and combinations thereof.

17. The adhesive article of claim 12, wherein the nanoparticles are surface modified.

18. The adhesive article of claim 12, further comprising a second primer interposed between at least a portion of the second major surface of the foam substrate and at least a portion of a second adhesive.

19. The adhesive article of claim 12, further comprising a second primer interposed between at least a portion of a first major surface of a substrate and at least a portion of the first adhesive.

20. A method of bonding an adhesive layer to a foam substrate comprising:

(a) interposing a primer consisting essentially of nanoparticles between a first major surface of the foam substrate and a first major surface of the adhesive layer;

(b) adhering at least a portion of the first major surface of the foam substrate to the primer; and

(c) adhering at least a portion of the first major surface of the adhesive layer to the primer.

21. The method of claim 20, wherein the foam substrate comprises a polymer selected from the group consisting of:

acrylic, polyethylene, ethylene vinyl acetate, and combinations thereof.

22. The method of claim 20, wherein the adhesive comprises no more than 5% by weight acrylic acid repeat units.

23. The method of claim 20, wherein the adhesive comprises at least one of:

silicone polyurea and acrylate.

24. The method of claim 20, wherein the nanoparticles have a maximum cross-sectional dimension of no more than 20 nanometers.

25. The method of claim 20, wherein the nanoparticles are selected from the group consisting of:

silica, ceria, iron oxide, and combinations thereof.

26. The method of claim 20, wherein the nanoparticles are surface modified.

27. The method of claim 20, wherein (b) comprises providing a primer solution comprising the nanoparticles and applying the primer solution to at least a portion of the first major surface of the foam substrate;

and (c) comprises contacting at least a portion of the primed portion of the first major surface of the foam substrate with at least a portion of the first major surface of the adhesive layer.

28. The method of claim 20, wherein (c) comprises providing a primer solution comprising the nanoparticles and applying the primer solution to at least a portion of the first major surface of the adhesive layer;

and (b) comprises contacting at least a portion of the primed portion of the first major surface of the adhesive layer with at least a portion of the first major surface of the foam substrate.

29. A method of bonding an adhesive layer to a substrate comprising:

(a) interposing a primer consisting essentially of nanoparticles between a first major surface of the substrate and a first major surface of the adhesive layer, wherein the adhesive layer comprises no more than 5% by weight acrylic acid repeat units;

(b) adhering at least a portion of the first major surface of the substrate to the primer; and

(c) adhering at least a portion of the first major surface of the adhesive layer to the primer.

30. The method of claim 29, wherein the substrate is a polymeric film.

32. The method of claim 29, wherein the adhesive comprises at least one of:

silicone polyurea and acrylate.

33. The method of claim 29, wherein the nanoparticles have a maximum cross-sectional dimension of no more than 20 nanometers.

34. The method of claim 29, wherein the nanoparticles are selected from the group consisting of:

silica, ceria, iron oxide and combinations thereof.

35. The method of claim 29, wherein the nanoparticles are surface modified.

36. The method of claim 29, wherein (b) comprises providing a primer solution comprising the nanoparticles and applying the primer solution to at least a portion of the first major surface of the substrate;

and (c) comprises contacting at least a portion of the primed portion of the first major surface of the substrate with at least a portion of the first major surface of the adhesive layer.

37. The method of claim 29, wherein (d) comprises providing a primer solution comprising the nanoparticles and applying the primer solution to at least a portion of the first major surface of the adhesive layer;

and (c) comprises contacting at least a portion of the primed portion of the first major surface of the adhesive layer with at least a portion of the first major surface of the substrate.

31. The method of claim 31, wherein the substrate comprises a polymer selected from the group consisting of:

polyolefins, polyesters, polyimides, polystyrenes, acrylics, polyacrylates, polymethacrylates, polymethylmethacrylates, polyurethanes, urethane acrylate polymers, epoxy acrylate polymers, polyacetals, polycarbonate, polysulfone, cellulose acetate butyrate, polyvinyl chloride, and combinations thereof.