Adhesives and sealants nanotechnology

• US 8,932,632 B2
• Filed: 10/21/2004
• Issued: 01/13/2015
• Est. Priority Date: 10/21/2003
• Status: Active Grant

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Inventors: Yadav, Tapesh, Vecoven, Audrey
• Primary Examiner(s): FISHER, ABIGAIL L
• Application Number:
  US10/969,353
• Publication Number:
  US 20060035087A1
• Time in Patent Office: 3,736 Days
• Field of Search: 424/489, 156/325, 156/326, 156/330, 156/327, 156/284, 156/60
• US Class Current: 424/489
• CPC Class Codes: C03C 27/10 with the aid of adhesive specially adapted for that purpose
• CPC Class Codes: C09J 11/04 inorganic
• CPC Class Codes: C09J 9/00 Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks C09J7/00 takes precedence
• CPC Class Codes: C09J 9/02 Electrically-conducting adhesives
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

Adhesives and sealants comprising submicron particles and nanomaterials, methods of making such adhesives and sealants, and methods of using such adhesives and sealants are provided.

Claims

1. An adhesive formulation comprising:

an epoxy resin formulated to hold together two or more solid materials by surface attachment; and

nanoparticles having a mean domain size less than 100 nanometers, wherein the nanoparticles are selected from the group consisting of silicon dioxide nanoparticles, zirconium dioxide nanoparticles, titanium dioxide nanoparticles, rare earth oxide nanoparticles, calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, cerium oxide nanoparticles, a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles, and combinations of any thereof;

wherein the nanoparticles impart negligible modification of visual appearance of the adhesive formulation.

2. The adhesive formulation of claim 1, wherein the nanoparticles comprise surface functionalizing epoxy groups.

3. The adhesive formulation of claim 1, wherein the nanoparticles comprise silicon dioxide nanoparticles.

4. The adhesive formulation of claim 1, wherein the nanoparticles comprise at least one of calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, or cerium oxide nanoparticles.

5. The adhesive formulation of claim 1, wherein the nanoparticles comprise 0.1% to 10% of the formulation by weight.

6. The formulation of claim 1, wherein the nanoparticles comprise a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles.

7. A sealant formulation comprising:

a resin comprising at least one of an acrylic resin or a urethane resin; and

nanoparticles having a mean domain size less than 100 nanometers, wherein the nanoparticles are selected from the group consisting of silicon dioxide nanoparticles, zirconium dioxide nanoparticles, titanium dioxide nanoparticles, rare earth oxide nanoparticles, calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, cerium oxide nanoparticles, a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles, and combinations of any thereof;

wherein the nanoparticles impart negligible modification of visual appearance of the sealant formulation.

8. The sealant formulation of claim 7, wherein the resin comprises a urethane resin.

9. The sealant formulation of claim 7, wherein the resin comprises an acrylic resin.

10. The sealant formulation of claim 9, wherein the nanoparticles comprise surface functionalizing acrylic groups.

11. The sealant formulation of claim 7, wherein the nanoparticles comprise silicon dioxide nanoparticles.

12. The sealant formulation of claim 7, wherein the nanoparticles comprise at least one of calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, calcium aluminum oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, or cerium oxide nanoparticles.

13. The sealant formulation of claim 7, wherein the nanoparticles comprise 0.1% to 10% of the formulation by weight.

14. The formulation of claim 7, wherein the nanoparticles comprise a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles.

15. An adhesive or sealant formulation comprising:

an elastomer resin; and

nanoparticles having a mean domain size less than 100 nanometers, wherein the nanoparticles are selected from the group consisting of silicon dioxide nanoparticles, zirconium dioxide nanoparticles, titanium dioxide nanoparticles, rare earth oxide nanoparticles, calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, cerium oxide nanoparticles, a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles, and combinations of any thereof;

wherein the nanoparticles impart negligible modification of visual appearance of the adhesive or sealant formulation.

16. The formulation of claim 15, wherein the elastomer resin comprises a rubber.

17. The formulation of claim 15, wherein the nanoparticles comprise silicon dioxide nanoparticles.

18. The formulation of claim 15, wherein the nanoparticles comprise at least one of calcium silicon oxide nanoparticles, zirconium silicon oxide nanoparticles, calcium aluminum oxide nanoparticles, barium zirconium oxide nanoparticles, yttrium oxide nanoparticles, yttrium zirconium oxide nanoparticles, or cerium oxide nanoparticles.

19. The formulation of claim 15, wherein the nanoparticles comprise 0.1% to 10% of the formulation by weight.

20. The formulation of claim 15, wherein the nanoparticles comprise a mixture of silicon dioxide nanoparticles and aluminum oxide nanoparticles.