IP Library Granted Patent US 12,496,230
Granted Patent B2
US 12,496,230 · App. 17/616,970 · Granted Dec 16, 2025

Moisture and electromagnetic radiation switchable adhesive and apparatuses, systems, and methods therefore

Inventors: Christopher Brian Locke (Bournemouth, GB); Timothy Mark Robinson (Shillingstone, GB)
Assignee: Solventum Intellectual Properties Company
A61F13/0253A61F13/0263C09J5/00C09J7/10C09J7/32C09J2301/306C09J2301/416C09J2301/502C09J2433/00C09J2471/00C09J2475/00C09J2483/00
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Quick Facts
Patent No.
US 12,496,230
App. No.
17/616,970
Granted
Dec 16, 2025
Kind
B2
Abstract

This disclosure describes devices, systems, and methods related to dual switchable adhesives, the manufacture thereof, and the use thereof. An exemplary dual switchable adhesive includes one or more polymers, photo initiators configured to cause the one or more polymers to cross-link responsive to receiving light, and polymerization initiators configured to cause the one or more polymers to cross-link responsive to receiving moisture.

Claims (18)

1 . A dual switchable adhesive comprising:

one or more polymers;

one or more photo initiators configured to cause the one or more polymers to cross-link responsive to receiving light; and

one or more polymerization initiators configured to cause the one or more polymers to cross-link responsive to receiving moisture.

2 . The dual switchable adhesive of claim 1 , wherein:

the switchable adhesive has at least three phases, each phase corresponding to a particular peel strength, and wherein the dual switchable adhesive is configured to transition between a first two phases of the three phases based on activation of the polymerization initiators and to transition between a second two phases of the three phases based on activation of the photo initiators; and

the dual switchable adhesive has a second peel strength in the second phase that is greater than a first peel strength of the dual switchable adhesive in the first phase, and wherein a third peel strength of the dual switchable adhesive in the third phase is less than the second peel strength.

3 . The dual switchable adhesive of claim 1 , wherein;

the switchable adhesive has at least three phases, each phase corresponding to a particular peel strength, and wherein the dual switchable adhesive is configured to transition between a first two phases of the three phases based on activation of the photo initiators and to transition between a second two phases of the three phases based on activation of the polymerization initiators; and

the dual switchable adhesive has a second peel strength in the second phase that is greater than a first peel strength of the dual switchable adhesive in the first phase, and wherein a third peel strength of the dual switchable adhesive in the third phase is less than the second peel strength.

4 . The dual switchable adhesive of claim 1 , wherein the one or more polymers include an acrylate polymer, and wherein the dual switchable adhesive comprises a polymer composition that includes the one or more polymers, the polymerization initiators, and the photo initiators.

5 . The dual switchable adhesive of claim 1 , wherein the photo initiators have a peak absorbance between 200 nanometers (nm) to 400 nm or between 750 nm to 860 nm.

6 . The dual switchable adhesive of claim 1 , further comprising second photo initiators configured to cause the one or more polymers to cross-link responsive to receiving second light, the second light different from the light.

7 . The dual switchable adhesive of claim 1 , wherein:

the dual switchable adhesive has a peel strength of less than 7 Newtons per 25 millimeters (7 N/25 mm) on stainless steel at 180 degrees in a first phase;

the dual switchable adhesive has a peel strength of greater 8 Newtons per 25 millimeters (8 N/25 mm) on stainless steel at 180 degrees in a second phase; and

the dual switchable adhesive has a peel strength of less than 7 Newtons per 25 millimeters (7 N/25 mm) on stainless steel at 180 degrees in a third phase.

8 . The dual switchable adhesive of claim 1 , wherein the dual switchable adhesive has a dynamic viscosity of 320-500 millipascal-second (mPa*s) when in a first phase.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066431/0915 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2024
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 066064/0128 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2023
From: LOCKE, CHRISTOPHER BRIAN; ROBINSON, TIMOTHY M.
To: KCI LICENSING, INC.
Reel/Frame 065305/0431 →
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION LISTED ON SCHEDULE OF IP RIGHTS ATTACHED TO ASSIGNMENT AT LINES 55: 71; 89; 116-129; AND 131 NEED TO BE DELETED PREVIOUSLY RECORDED AT REEL: 064788 FRAME: 0823. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 13, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064886/0479 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064788/0823 →
Continuity (2)
Provisional Application 62858126 · Jun 6, 2019
Related Publication 20220233360A1 · Jul 28, 2022
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