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Polysulfide adhesive tape

A sulfide-based, polysulfide technology, applied in the direction of non-polymer organic compound adhesives, graft polymer adhesives, adhesive types, etc., can solve the problem of pre-standing adherends, long-term, time-consuming issues

Inactive Publication Date: 2018-10-23
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since liquid polysulfide is liquid, it takes a lot of time to seal large adherends such as building materials, vehicles, aircraft, and ships by coating.
[0005] In addition, since the liquid polysulfide is in a liquid state, it takes a long time to cure after sealing construction, so there is a problem that the adherend has to be left to stand until the curing is completed.

Method used

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  • Polysulfide adhesive tape
  • Polysulfide adhesive tape
  • Polysulfide adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146]100 parts by weight of polysulfide oligomer (manufactured by Toray Fine Chemical, product name "THIOKOL LP-55"), 1 part by weight each of UV initiator (manufactured by BASF Corporation, product name "Irgacure 819" and "Irgacure 651"), Tertiary amine catalyst (manufactured by Tokyo Chemical Industry Co., Ltd., product name "2,4,6-tris(dimethylaminomethyl)phenol") 0.1 parts by weight, butyl acrylate 10 parts by weight, N-vinylpyrrolidone 7 parts by weight, A polysulfide polymer was prepared by mixing 3 parts by weight of acrylic acid, 3 parts by weight of 1,6-hexanediol diacrylate, and 1.5 parts by weight of a bifunctional isocyanate crosslinking agent (manufactured by Asahi Kasei Chemicals, product name "Duranate 50M-HDI") . The above-mentioned polysulfide polymer was coated on the treated surface of a release liner (manufactured by Mitsubishi Polyester Film Co., Ltd., trade name "MRE", thickness 38 μm) to obtain a coating layer. A second release liner (manufactured by M...

Embodiment 2

[0151] An adhesive tape (2) was produced in the same manner as in Example 1 except that butyl acrylate, N-vinylpyrrolidone, and acrylic acid were not added when preparing the polysulfide polymer.

[0152] The results are shown in Table 1.

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Abstract

Provided is a polysulfide adhesive tape having excellent oil resistance, etc. and sufficient adhesive force. The polysulfide adhesive tape of the present invention is provided with an adhesive layer formed from a polysulfide adhesive composition including a sulfur-containing polymer. The sulfur-containing polymer has a disulphide structure represented by -S-S- in a main chain, and a tack ball number of the adhesive layer as measured by the inclined ball tack test (inclination angle of 30 degrees) defined in JIS Z 0237 at a temperature of 23 DEG C and a humidity of 65% is 2 or more.

Description

technical field [0001] The present invention relates to a polysulfide-based adhesive tape. Background technique [0002] As one of sealing agents, liquid polysulfides have conventionally been commercially utilized (for example, Patent Documents 1 to 3). [0003] Liquid polysulfides are easily oxidized and solidified by oxidizing agents such as lead dioxide and manganese dioxide. The rubber-like cured product obtained by curing liquid polysulfide contains sulfur atoms in the main chain of the molecule and does not contain double bonds, so it is excellent in oil resistance, weather resistance, water tightness, and air tightness, so it is used as building materials, Sealants for vehicles, aircraft, ships, etc. [0004] However, since the liquid polysulfide is liquid, there is a problem that it takes a lot of time to seal large adherends such as building materials, vehicles, airplanes, and ships by coating. [0005] In addition, since the liquid polysulfide is liquid, it take...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/10C09J4/02C09J4/06C09J175/04C09J181/04
CPCC09J4/06C09J175/04C09J181/04C08F291/14C09J151/08C09J7/10C08F220/1804C08F226/10C08F220/06C08F222/102C09J7/381
Inventor 北山和宽牟田茂树
Owner NITTO DENKO CORP
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