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Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material

A composition and base material technology, which is applied in the field of foam tape and foam tape base material composition, can solve the problems of high price of fluorosurfactant, decrease of adhesive force on the surface of foam tape, use restriction, etc., and achieve excellent bubble stability Effect

Active Publication Date: 2014-07-30
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The fluorosurfactant used in the preparation of the existing bubble-dispersing foam tape is not only expensive, but also restricted in use due to environmental regulations
Also, currently marketed fluorosurfactants do not sufficiently stabilize bubbles in acrylic adhesives, making it difficult to produce low-density acrylic foam tapes at the required level
[0004] In addition, the existing silicon surfactants in use contain polysiloxane with a large molecular weight, which contributes to the stability of the cells, but has the problem that the adhesive force of the foam tape finally produced decreases.
This is due to silicone surfactants containing a large number of siloxane groups, which can cause, among other things, reduced adhesion on the surface of the foam tape, and due to the inclusion of other compounds with low molecular weight, which can also affect adhesion

Method used

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  • Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material
  • Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material
  • Composition for foam tape base material, foam tape using same, and method for manufacturing composition for foam tape base material

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preparation example Construction

[0037] The preparation method of the foam tape of the present invention includes: the substrate composition mixing step (a), mixing acrylic monomers, free radical initiators, crosslinking agents, porous fillers, and 60 to 90% by weight of siloxane polymers 10-40% by weight of a non-siloxane polymer surfactant; coating step (b), coating the mixed substrate composition on a backing film; and forming a foam In the step (c) of the tape, the backing film coated with the substrate composition in the coating step is passed through an ultraviolet curing machine to form a foam and polymerize.

[0038] The above step (a) is a step of preparing the substrate composition of the foam tape. The substrate composition is obtained by mixing acrylic monomers, free radical initiators, crosslinking agents, porous fillers, and siloxane polymers. -90% by weight and 10-40% by weight of non-siloxane polymer surfactant are mixed.

[0039] The above step (b) is a step of coating the substrate composition o...

Embodiment 1

[0044] 90 parts of 2-ethylhexyl acrylate and 10 parts of polar monomer acrylic acid were thermally polymerized in a 1L glass reactor to obtain a slurry with a viscosity of 3500 cP. With respect to 100 parts by weight of the obtained slurry, 0.5 parts by weight of Yanjiagu-651 (a,a-methoxy-a-hydroxyacetophenone) as a photoinitiator and 1,6- After 0.35 parts by weight of hexanediol diacrylate (HDDA), fully stirred. Into this, 4.5 parts of glass bubbles and 1.5 parts of silica were thoroughly mixed and stirred until they became sufficiently uniform. A vacuum pump is used to decompress and degas the formed mixture. Then, under the condition of injecting nitrogen gas, the mixture uses a foaming agent (Frother) and 2 parts by weight of a silicone surfactant containing 80% by weight of polyalkylene oxide copolymer and 20% by weight of non-siloxane polymer. Coated on the release film with a coating thickness of 1mm, and then used an ultraviolet curing machine to prepare an acrylic fo...

Embodiment 2

[0046] An acrylic foam tape was prepared according to the same method as in Example 1 above, but using a silicone surfactant containing 65% by weight of dimethylmethylpropylsiloxane copolymer and 35% by weight of non-siloxane polymer, To prepare the acrylic foam tape of Example 2.

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Abstract

Disclosed are a composition for a foam tape base material having high bubble stability and superior peel strength. The composition for the foam tape according to the present invention comprises an acrylic monomer, a radical initiator, a cross-linking agent, a porous filler, and a surfactant, wherein the surfactant comprises 60 to 90 wt% of a siloxane polymer and 10 to 40 wt% of a non-siloxane polymer, thereby providing the advantage of manufacturing the foam tape manufactured using the composition that is economical, does not lose adhesive force, and has superior bubble stability compared to existing foam tapes.

Description

Technical field [0001] The present invention relates to a foam tape substrate composition and a foam tape using the foam tape substrate composition, and more specifically to a foam tape substrate composition using a silicone surfactant and the foam tape substrate The foam tape of the composition and the preparation method thereof. Background technique [0002] The prior art related to the acrylic foam tape used in the exterior decoration of interior decoration, automobile decoration parts and the like and its preparation method has been disclosed in Korean Patent Publication No. 10-2000-18221. [0003] The fluorosurfactant used in the preparation of the existing bubble-dispersed foam tape is not only expensive, but also restricted in use due to environmental regulations. In addition, the fluorosurfactants currently on sale cannot fully stabilize the bubbles in the acrylic adhesive, and it is difficult to prepare a low-density acrylic foam tape of the required level. [0004] In add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08K7/22C08J9/00C09J7/02C09J7/10
CPCC08K7/22C09J133/08C09J133/10C08K5/54C09J4/00C08F220/06C08J9/0061C08J9/122C08J2333/02C08J2333/06C08J2483/12C09J2400/24C09J2433/00C09J7/10C09J2301/412C09J2301/41C09J7/26C08J9/009C08L33/04C09J2301/16C09J2301/40C08J9/0066C09D183/04
Inventor 金章淳庾丞民金志惠
Owner LG CHEM LTD