Swelling tape for filling gap

• US 9,868,881 B2
• Filed: 06/17/2014
• Issued: 01/16/2018
• Est. Priority Date: 01/27/2011
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• 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
• Primary Examiner(s): Orlando, Michael N
• Assistant Examiner(s): Rivera, Joshel
• Application Number:
  US14/306,933
• Publication Number:
  US 20140290829A1
• Time in Patent Office: 1,309 Days
• Field of Search: 156 83, 385105, 429 94, 174 23 R, 422504, 422527, 422947, 436165, 523173, 7386402
• CPC Class Codes: B32B 27/285 comprising polyethers
• CPC Class Codes: B32B 27/308 comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 27/38 comprising epoxy resins
• CPC Class Codes: B32B 27/40 comprising polyurethanes
• CPC Class Codes: B32B 37/02 characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
• CPC Class Codes: C09J 133/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C09J 2203/33 for batteries or fuel cells
• CPC Class Codes: C09J 2401/006 in the substrate
• CPC Class Codes: C09J 2433/00 Presence of (meth)acrylic polymer
• CPC Class Codes: C09J 2433/006 in the substrate
• CPC Class Codes: C09J 2463/00 Presence of epoxy resin
• CPC Class Codes: C09J 2463/006 in the substrate
• CPC Class Codes: C09J 2475/00 Presence of polyurethane
• CPC Class Codes: C09J 2475/006 in the substrate
• CPC Class Codes: C09J 7/22 Plastics; Metallised plastics
• CPC Class Codes: C09J 7/241 Polyolefin, e.g.rubber
• CPC Class Codes: C09J 7/245 Vinyl resins, e.g. polyvinyl chloride [PVC]
• CPC Class Codes: C09J 7/25 based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
• CPC Class Codes: C09J 7/26 Porous or cellular plastics
• CPC Class Codes: C09J 7/29 : Laminated material metallised plastics C09J7/22
• CPC Class Codes: H01M 10/02 : Details of electrodes H01M4/00; of non-active parts H01M50/00
• CPC Class Codes: H01M 10/0431 : Cells with wound or folded electrodes H01M10/045 takes precedence
• CPC Class Codes: H01M 10/049 : Processes for forming or storing electrodes in the battery container
• CPC Class Codes: H01M 4/04 : Processes of manufacture in general
• CPC Class Codes: H01M 6/005 : Devices for making primary cells
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49114 : including adhesively bonding
• CPC Class Codes: Y10T 428/24521 : with component conforming to contour of nonplanar surface
• CPC Class Codes: Y10T 428/28 : Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2852 : Adhesive compositions
• CPC Class Codes: Y10T 428/287 : including epoxy group or epoxy polymer
• CPC Class Codes: Y10T 428/2891 : including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof

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.

Claims

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 that includes a urethane bond, an ester bond or an ether bond, or a cellulose ester compound; 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 single layer consisting essentially of an acrylate-based substrate layer, a urethane-based substrate layer, an epoxy-based substrate layer or a cellulose-based substrate layer,

wherein the acrylate-based substrate layer or the epoxy-based substrate layer is a cast layer of an active energy ray-curable composition, wherein the urethane-based substrate layer is a cast layer of an active energy ray-curable composition or a curable urethane composition or comprises only a thermoplastic polyurethane as a resin component, wherein the cellulose-based substrate layer comprises only a cellulose acetate resin or cellulose alkylate resin as a resin component,

wherein a three-dimensional structure with a height of 0.001 mm to 2.0 mm is formed along a vertical direction to the longitudinal direction when the substrate contacts 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 the following Equation 1;

Strain in Longitudinal direction=(L₂−

L₁)/L₁×

100, 

 

[Equation 1]

wherein L₁ is an initial length of the substrate layer before the substrate layer comes in contact with the fluid; and

L₂ 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. 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.