Swelling tape for filling gap

Patent metadata

Field	Value
Publication number	US-9862864-B2
Application number	US-201313949955-A
Country	US
Kind code	B2
Filing date	Jul 24, 2013
Priority date	Jan 27, 2011
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A swelling tape for filling a gap and a method of filling a gap are provided. The swelling tape can be applied within the gap having a fluid to realize a 3D shape thereby filling the gap, and be used to fix a subject forming the gap as necessary.

First claim

What is claimed is:

1. A swelling tape for filling a gap, comprising:
a substrate layer that deforms along a longitudinal direction when coming in contact with a fluid; and
a pressure-sensitive adhesive layer formed on one surface of the substrate layer in a direction parallel to a longitudinal direction of the substrate layer,
wherein the substrate layer is a layer selected from the group consisting of:
a cast layer of a composition consisting essentially of 30 parts by weight to 99 parts by weight of an energy ray-polymerizable acrylate compound and 1 part by weight to 70 parts by weight of a radical-polymerizable diluents;
a cast layer of a composition comprising a polyol and an isocyanate compound;
a layer comprising thermoplastic polyurethane; and
a layer comprising a cellulose acetate resin or a cellulose alkylate resin,

wherein the substrate layer forms a three-dimensional structure when coming in contact with a fluid,
wherein the three-dimensional structure includes a shape protruding along the vertical direction and wherein a plurality of the shapes are included in the three-dimensional structure, and
wherein the substrate layer has a strain of at least 10% in a longitudinal direction according to Equation 1:
Strain in Longitudinal direction=( L 2 −L 1 )/ L 1 ×100,  [Equation1]

wherein L 1 is an initial length of the substrate layer before the substrate layer comes in contact with the fluid; and L 2 is a length of the substrate layer, which is measured after the substrate layer comes in contact with the fluid at room temperature or 60° C. for 24 hours.

2. The swelling tape of claim 1 , wherein the pressure-sensitive adhesive layer has a peel strength of 100 gf/25 mm or more at room temperature, which is measured at a peel rate of 5 mm/sec and a peel angle of 180° to a glass plate or any one subject that forms a gap.

3. The swelling tape of claim 1 , wherein the pressure-sensitive adhesive layer includes an acrylic pressure-sensitive adhesive, a urethane pressure-sensitive adhesive, an epoxy pressure-sensitive adhesive, a silicon pressure-sensitive adhesive, or a rubber pressure-sensitive adhesive.

4. A method of filling a gap, which is formed by a first substrate and a second substrate spaced apart from the first substrate, comprising:
attaching a pressure-sensitive adhesive layer of the swelling tape according to claim 1 to the first substrate or the second substrate; and
deforming the substrate layer in a longitudinal direction by bringing the substrate layer of the swelling tape in contact with a fluid.

5. The method of claim 4 , wherein one of the first and second substrates is an electrode assembly and the other is a can receiving the assembly.

6. The swelling tape of claim 1 ,
wherein the substrate layer is the cast layer of the composition comprising the polyol and the isocyanate compound, and
wherein the polyol includes an alkylene glycol, a dialkylene glycol, a benzenediol, a benzenetriol, a dialcohol amine, a trialcohol amine, arabitol, mannitol, isomalt, glycerol, xylitol, sorbitol, maltitol, erythritol, ribitol, dulcitol, lactitol, threitol, iditol or polyglycitol.

Assignees

• Kim Se Ra
• Chang Suk Ky
• Jung Byung Kyu
• Hwang Yoon Tae
• Ku Cha Hun
• Kim Sung Jong
• Yang Se Woo
• Joo Hyo Sook
• Park Min Soo
• Lg Chemical Ltd

Inventors

• Kim Se Ra
• Chang Suk Ky
• Jung Byung Kyu
• Hwang Yoon Tae
• Ku Cha Hun
• Kim Sung Jong
• Yang Se Woo
• Joo Hyo Sook
• Park Min Soo

Classifications

• H01M6/005

  Devices for making primary cells · CPC title

• H01M4/04

  Processes of manufacture in general · CPC title

• C09J7/245

  Vinyl resins, e.g. polyvinyl chloride [PVC] · CPC title

• C09J7/29

  Laminated material (metallised plastics C09J7/22) · CPC title

• C09J2463/006

  in the substrate · CPC title