Disposable Insole Pads and Use Thereof

Patent metadata

Field	Value
Publication number	US-2019343228-A1
Application number	US-201916520460-A
Country	US
Kind code	A1
Filing date	Jul 24, 2019
Priority date	Jan 27, 2017
Publication date	Nov 14, 2019
Grant date	—

Abstract

Disposable insole pads and use thereof are disclosed. The disposable insole pads are multilayer structures comprising a topsheet and a pressure sensitive adhesive, and optionally a backsheet, silicone coating and liner layers. The pressure sensitive adhesive layer allows the disposable insole pads to be positioned, repositioned and removed, making them well suited for daily use and disposal.

First claim

I/We claim:

1 . A disposable shoe pad having a multilayer structure comprising:
a. a topsheet; b. an adhesive layer; and c. optionally, a release liner; wherein the adhesive is a pressure sensitive adhesive having a storage modulus (G′) less than about 1×10 5 Pascal at 40° C.

2 . The disposable shoe pad of claim 1 , further comprising an odor control agent.

3 . The disposable shoe pad of claim 1 , wherein the topsheet further comprises an absorbent layer and/or a backsheet.

4 . The disposable shoe pad of claim 1 , wherein the adhesive layer comprises a polymer, and optionally, a tackifier, a plasticizer, a wax, optionally a stabilizer, and an additive.

5 . The disposable shoe pad of claim 1 , wherein the adhesive layer is a layer of a hot melt pressure sensitive adhesive, a solution acrylic pressure sensitive adhesive, an emulsion acrylic pressure sensitive adhesive or an ultraviolet curable pressure sensitive adhesive.

6 . The disposable shoe pad of claim 1 , wherein the adhesive comprises an acrylic polymer, and optionally, a tackifier, a plasticizer, a rheology modifier, and/or a crosslinker.

7 . The disposable shoe pad of claim 1 , wherein the adhesive layer covers at least 20% of the area of disposable shoe pad.

8 . A kit comprising:
a. a support structure having a first side and a second side, and b. a disposable insole pad having a multilayer structure comprising:
i. a top sheet;
ii. a pressure sensitive adhesive layer; and
iii. optionally, a release liner;
wherein the adhesive layer of the disposable insole pad adheres onto the first side of the support structure.

9 . The kit of claim 8 , wherein the support structures, optionally, comprises a second adhesive on the second side.

10 . The kit of claim 8 , further comprising an odor control agent in the disposable insole pad and/or the support structure.

11 . The kit of claim 8 , wherein the pressure sensitive adhesive layer comprises a polymer, and optionally, a tackifier, plasticizer, a wax, a stabilizer, and an additive.

12 . A linerless, disposable pad comprising a topsheet having a top side and a bottom side and a length and a width,
wherein the disposable pad is perforated along the cross-section perpendicular to the length of the pad; wherein the bottom side is coated with a pressure sensitive adhesive having a storage modulus (G′) less than about 1×10 5 Pascal at 40° C.; and wherein the top side is optionally coated with a silicone release agent.

13 . The linerless, disposable pad of claim 12 , wherein the pressure sensitive adhesive is prepared with a polymer and optionally, a tackifier, a plasticizer, a wax, and a stabilizer.

14 . The linerless, disposable pad of claim 12 , wherein the pressure sensitive adhesive layer is prepared with acrylic polymer, and optionally, a tackifier, a plasticizer, a rheology modifier; and/or a crosslinker.

15 . A stack comprising a plurality of the linerless, disposable pad of claim 12 , wherein the adhesive of the bottom side of a first disposable pad is placed on the top side of a second disposable pad.

16 . A linerless, disposable pad comprising a topsheet having a first side and a second side and having a length X,
wherein the pad is foldable in a butterfly flap, having ¼ X fold at a left end and ¼ X fold at a right end, ½ X fold at a middle; whereby the second side is on the inside fold and the first side is on the outside fold; wherein the first side of the ¼ left fold and the ¼ right fold are coated with a pressure sensitive adhesive having a storage modulus (G′) less than about 1×10 5 Pascal at 40° C.; and wherein the first side of the middle ½ X fold is optionally coated with a silicone release.

17 . The linerless, disposable pad of claim 16 , further comprising an odor control agent in the topsheet and/or coated on the first side of the topsheet.

18 . The linerless, disposable pad of claim 16 , wherein the pressure sensitive adhesive is prepared with a polymer, and optionally a tackifier, a plasticizer; a wax, and a stabilizer.

19 . The linerless, disposable shoe pad of claim 16 , wherein the pressure sensitive adhesive is prepared with an acrylic polymer, and optionally, a tackifier, a plasticizer, a rheology modifier, an additive; and/or a crosslinker.

20 . A receptable housing comprising a roll of a plurality of linerless, disposable pad wherein the linerless, disposable pad comprises a topsheet having a top side and a bottom side,
the bottom side is coated with a pressure sensitive adhesive having a storage modulus (G′) less than about 1×10 5 Pascal at 40° C.; the top side is optionally coated with a silicone release agent; and wherein the pad dispenses singly from the receptable housing.

Assignees

• Henkel IP & Holding GmbH

Inventors

• Lehmann Sun Hee
• Hu Yuhong
• Cain Cynthia
• Harwell Michael
• Georgiana Joanne

Classifications

• B32B2307/758

  Odour absorbent · CPC title

• B32B2307/726

  Permeability to liquids, absorption · CPC title

• A43B17/14

  made of sponge, rubber, or plastic materials · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• A43B17/105 Primary

  Disposable · CPC title