HIGH CAPACITY EASY RELEASE EXTENDED USE ADHESIVE DEVICES

• US 20170306189A1
• Filed: 01/20/2017
• Published: 10/26/2017
• Est. Priority Date: 10/21/2010
• Status: Active Grant

• Current Assignee: University Of Massachusetts
• Original Assignee: University Of Massachusetts
• Inventors: Crosby, Alfred J., Bartlett, Michael D., Croll, Andrew B., King, Daniel
• Granted Patent: US 10,150,892 B2
• Time in Patent Office: Days
• CPC Class Codes: A44B 18/0069 Details
• CPC Class Codes: B32B 2307/748 Releasability
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 37/16 with all layers existing as coherent layers before laminating
• CPC Class Codes: B32B 5/02 characterised by structural features of a fibrous or filamentary layer layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02
• CPC Class Codes: B32B 7/00 Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
• CPC Class Codes: C09D 5/20 for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
• CPC Class Codes: C09J 175/04 Polyurethanes
• CPC Class Codes: C09J 2301/204 the adhesive coating being discontinuous
• CPC Class Codes: C09J 2301/312 parameters being the characterizing feature
• CPC Class Codes: C09J 2400/263 in the substrate
• CPC Class Codes: C09J 2427/001 in the barrier layer
• CPC Class Codes: C09J 2427/006 in the substrate
• CPC Class Codes: C09J 2433/00 Presence of (meth)acrylic polymer
• CPC Class Codes: C09J 2475/00 Presence of polyurethane
• CPC Class Codes: C09J 2483/00 Presence of polysiloxane
• CPC Class Codes: C09J 2483/006 in the substrate
• CPC Class Codes: C09J 7/00 Adhesives in the form of films or foils
• CPC Class Codes: C09J 7/21 Paper; Textile fabrics
• CPC Class Codes: C09J 7/30 characterised by the adhesive composition
• CPC Class Codes: C09J 7/38 : Pressure-sensitive adhesives [PSA]
• CPC Class Codes: Y10T 24/33 : having adhesive fastener
• CPC Class Codes: Y10T 428/24612 : Composite web or sheet
• CPC Class Codes: Y10T 428/2481 : including layer of mechanically interengaged strands, strand-portions or strand-like strips
• CPC Class Codes: Y10T 428/2848 : Three or more layers

Abstract

The invention provides novel devices, systems, designs, materials and fabrication methods that enable high-load capacity, easy release, and suitable for extended/repeated use in a variety of applications.

Claims

1-130. -130. (canceled)

131. A releasable surface-adhesive device, comprising:

an adhesive pad, comprising;

a planar backing layer;

a planar layer of an elastic material having an adhesive surface on at least one side for adhering to a target surface, wherein a side of the planar layer of the elastic material opposing the adhesive surface is applied onto the backing layer, and wherein the backing layer has a higher in-plane stiffness than the planar layer of the elastic material.

132. The releasable surface-adhesive device of claim 131, wherein the planar layer of the elastic material comprises two or more separate smaller elastic material layer units.

133. The releasable surface-adhesive device of claim 131, further comprising a flexible tether attached to and extending from the backing layer of the adhesive pad

134. The releasable surface-adhesive device of claim 133, wherein an angle between the tether and the adhesive pad is adjustable.

135. The releasable surface-adhesive device of claim 133, further comprises a holding component attached to the tether for connecting an object to the device.

136. The releasable surface-adhesive device of claim 133, wherein the tether comprises at least one of fabric, rope, fiber, plastic sheet, tubing, rods, metal foil, chains, non-woven textile, cable, and leather.

137. The releasable surface-adhesive device of claim 133 wherein the tether is attached to the adhesive pad away from an edge of the adhesive pad.

138. The releasable surface-adhesive device of claim 133, wherein the tether is attached to the adhesive pad at the center of the adhesive pad.

139. The releasable surface-adhesive device of claim 131, wherein the planar layer of the elastic material has a uniform thickness between 0.0001 cm to 0.1 cm.

140. The releasable surface-adhesive device of claim 139, wherein the elastic material has an elastic modulus between 0.05 MPa to 50 MPa.

141. The releasable surface-adhesive device of claim 140, wherein the elastic material comprises at least one of a siloxane-based elastomer, an urethane-based elastomer, an acrylate-based elastomer, a polydimethylsiloxane (PDMS), a block copolymer elastomer, a polyurethane, styrene-butadiene-styrene, and a natural rubber.

142. The releasable surface-adhesive device or method of any of claim 141, wherein the backing layer comprises at least one of a fabric, foil, sheet, and film.

143. A method comprising:

attaching a flexible tether to the adhesive pad of the releasable surface-adhesive device of claim 131.

144. A method for making a releasable surface-adhesive device, comprising:

applying an elastic material to a planar backing layer;

curing the elastic material to form an adhesive pad having a planar layer of the elastic material applied onto the planar backing layer, wherein the backing layer has a higher in-plane stiffness than the elastic planar layer.

145. The method of claim 144, further comprising attaching a flexible tether to the adhesive pad.

146. The method of claim 145, wherein the tether comprises at least one of fabric, rope, fiber, plastic sheet, tubing, rods, metal foil, chains, non-woven textile, cable, and leather.

147. The method of claim 145, wherein the tether is attached to the adhesive pad away from an edge of the adhesive pad.

148. The method of claim 145, wherein the tether is attached to the adhesive pad at the center of the adhesive pad.

149. The method of claim 144, wherein the planar layer of the elastic material has a uniform thickness between 0.0001 cm to 0.1 cm.

150. The method of claim 149, wherein the elastic material has an elastic modulus between 0.05 MPa to 50 MPa.

151. The method of claim 150, wherein the elastic material comprises at least one of a siloxane-based elastomer, an urethane-based elastomer, an acrylate-based elastomer, a polydimethylsiloxane (PDMS), a block copolymer elastomer, a polyurethane, styrene-butadiene-styrene, and a natural rubber.

152. The method of claim 151, wherein the backing layer comprises at least one of a fabric, foil, sheet, and film.