IP Library › Granted Patent US 12680318
Granted Patent B2
US 12680318 · App. 17/019,671 · Granted Jul 14, 2026

Joint support including encapsulated adhesive

Inventors: Mithun N. Kamath (Northborough, MA); Nicholas David Orf (Natick, MA); James Dimitrakopoulos (Conshohocken, PA); Michael House (Bend, OR); Michael Lemberger (Dudley, MA); Stephen Cline (Bend, OR)
Assignee: CertainTeed Gypsum, Inc.
E04F19/028E04F21/1657C09J2301/122C09J2301/412E04F21/026
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Quick Facts
Patent No.
US 12680318
App. No.
17/019,671
Granted
Jul 14, 2026
Kind
B2
Abstract

The present disclosure relates generally to building surface joint supports, for example, suitable for covering a seam between two building surface panels, such as drywall. The present disclosure relates more particularly to a joint support including an encapsulated adhesive for securing the joint support to the building surface panels. The joint support includes a support strip having a width, a length, a first end, a second end, a contact surface, and an outer surface. An adhesive is disposed on the contact surface of the support strip. The adhesive includes a first set of capsules and each capsule of the first set of capsules includes a membrane enclosing a first component of an adhesive composition.

Claims (25)

1 . A method of installing a joint support on a joint between a first drywall panel and a second drywall panel, the joint support comprising:

a support strip including a width, a length in the range of 4-20 feet, a first end, a second end, a contact surface and an outer surface; and

an adhesive substance disposed on the contact surface of the support strip, the adhesive substance including:

a first set of capsules, each capsule of the first set of capsules including an outer membrane enclosing a first component of an adhesive composition,

the method comprising:

placing the joint support over the joint between the first drywall panel and the second drywall panel so as to cover a portion of a seam between the first and second drywall panels and with the contact surface of the joint support disposed against a surface of each of the drywall panels; and then

applying a pressure to the joint support by pushing the joint support against the first drywall panel and against the second drywall panel, the pressure releasing the first component of the adhesive composition from the capsules of the first set of capsules, wherein the adhesive composition attaches the joint support to the first drywall panel and the second drywall panel,

wherein the first drywall panel and the second drywall panel form an interior building surface.

2 . The method according to claim 1 , wherein the adhesive substance includes a second component of the adhesive composition.

3 . The method according to claim 2 , wherein the second component is disposed outside of the capsules.

4 . The method according to claim 3 , wherein the first set of capsules is embedded in the second component.

5 . The method according to claim 2 , wherein the adhesive substance includes a second set of capsules, and wherein the second component is disposed in the capsules of the second set of capsules.

6 . The method according to claim 1 , wherein the capsules release the first component by rupturing.

7 . The method according to claim 1 , wherein the first component of the adhesive composition includes a monomer or oligomer based on at least one of alkyl acrylate, acrylic acid-alkyl acrylate, methacrylate, epoxy resins, polyvinyl acetate, isocyanate, urethane, and styrene butadiene.

8 . The method according to claim 1 , wherein the capsules have an average diameter in a range from 0.1 microns to 3000 microns.

9 . The method according to claim 1 , wherein the contact surface of the support strip is textured.

10 . The method according to claim 1 , wherein the joint support is a corner bead.

11 . The method according to claim 10 , wherein the support strip includes a body comprising:

a first elongate flange extending from the first end to the second end, and a second elongate flange extending from the first end to the second end.

12 . The method according to claim 11 , wherein the body includes a sharp corner connecting the first elongate flange and the second elongate flange.

13 . The method according to claim 12 , wherein the body includes a groove disposed on an inside surface of the sharp corner connecting the first elongate flange and the second elongate flange.

14 . The method according to claim 1 , further comprising, after the application of the pressure, coating the outer surface of the joint support with a joint compound.

15 . The method according to claim 1 , further comprising, after the application of the pressure, covering the outer surface of the joint support with a layer of paint.

16 . The method according to claim 1 , wherein the first drywall panel and the second drywall panel form an interior building wall surface.

17 . The method according to claim 1 , wherein the first drywall panel and the second drywall panel form an interior building ceiling surface.