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Non-slip material, and temporary fixing material

A technology of air bubbles and foams, which is applied in the direction of electronic equipment, film/sheet adhesives, applications, etc., and can solve problems such as insufficient mechanical strength, loading and unloading fractures, etc.

Inactive Publication Date: 2014-08-13
NITTO DENKO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the thickness of the acrylic foam layer constituting the anti-slip sheet is 0.3 mm or less, the mechanical strength may be insufficient, and the sheet may be broken during attachment and detachment.

Method used

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  • Non-slip material, and temporary fixing material
  • Non-slip material, and temporary fixing material
  • Non-slip material, and temporary fixing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0186] Hereinafter, although this invention is demonstrated based on an Example, this invention is not limited to these Examples. In addition, normal temperature means 23 degreeC.

[0187] (Molecular Weight Determination)

[0188] The weight average molecular weight was determined by GPC (gel permeation chromatography).

[0189] Device: "HLC-8020" manufactured by Tosoh Corporation

[0190] Column: "TSK gel GMH" manufactured by Tosoh Corporation HR -H(20)"

[0191] Solvent: THF

[0192] Standard material: polystyrene

[0193] (Measurement of average pore diameter)

[0194] The produced foam sheet was cut in the thickness direction using an ultramicrotome, and used as a measurement sample. The cut surface of the measurement sample was photographed at 800 to 5000 magnifications using a low-vacuum scanning electron microscope (manufactured by Hitachi, S-3400N). Using the obtained image, the lengths of the major axes of about 30 pores were measured for arbitrary ranges of s...

manufacture example 1

[0216] [Manufacturing Example 1]: Preparation of Mixed Slurry 1

[0217] Into a reaction vessel equipped with a condenser, a thermometer, and a stirring device, 173.2 of a monomer solution composed of 2-ethylhexyl acrylate (manufactured by Toagosei Co., Ltd., hereinafter abbreviated as "2EHA") as an ethylenically unsaturated monomer was introduced. Parts by weight, 100 parts by weight of ADEKA (registered trademark) pluronic L-62 (molecular weight 2500, manufactured by ADEKA Corporation, polyether polyol) as polyoxyethylene polyoxypropylene glycol, dilaurel as a urethane reaction catalyst Dibutyltin dibutyltin (manufactured by Yoshida Chemical Co., Ltd., hereinafter referred to as "DBTL") 0.014 parts by weight, and hydrogenated xylylene diisocyanate (manufactured by Takeda Pharmaceutical Co., Ltd., TAKENATE600, hereinafter referred to as "HXDI") was added dropwise while stirring. ”) 12.4 parts by weight, reacted at 65°C for 4 hours. In addition, the usage-amount of a polyisoc...

manufacture example 2

[0218] [Manufacturing Example 2]: Preparation of Mixed Slurry 2

[0219] 173.2 parts by weight of a monomer solution composed of 2EHA as an ethylenically unsaturated monomer and ADEKA (registered trademark) pluronic L as polyoxyethylene polyoxypropylene glycol were charged into a reaction vessel equipped with a condenser, a thermometer, and a stirring device. 100 parts by weight of -62 (molecular weight 2500, manufactured by ADEKA Co., Ltd., polyether polyol), 0.014 parts by weight of DBTL as a urethane reaction catalyst, and 12.4 parts by weight of HXDI were added dropwise while stirring. React for 4 hours. In addition, the usage-amount of a polyisocyanate component and a polyol component is NCO / OH (equivalent ratio)=1.6. Then, 5.6 parts by weight of HEA was added dropwise and reacted at 65°C for 2 hours to obtain a hydrophilic polyurethane-based polymer / ethylenically unsaturated monomer mixed slurry having acryloyl groups at both ends. The weight average molecular weight o...

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Abstract

The present invention provides a non-slip material and a temporary fixing material which do not break even after repeated use and which can continuously exhibit adhesiveness and detachability at a high level. This non-slip material contains a foam having a continuous bubble structure having through holes between adjacent spherical bubbles, wherein the average diameter of the spherical bubbles is less than 20 mum, the average diameter of the through holes is 5 mum or less, surface openings having an average diameter of 20 mum or less are formed on the surface, and the normal shear bond force is 1 N / cm2 or greater.

Description

technical field [0001] The invention relates to anti-slip materials and temporary fixing materials. Background technique [0002] Conventionally, sheets provided with an adhesive layer have been used as anti-slip sheets for furniture, carpets, and the like. [0003] In addition, in recent years, a non-slip sheet in which an acrylic foam layer is provided on both surfaces of a substrate has been proposed (Patent Document 1). The anti-slip sheet does not have an adhesive layer, so it has the advantage of not causing glue residue problems. However, when the thickness of the acrylic foam layer constituting the anti-slip sheet is 0.3 mm or less, the mechanical strength may be insufficient, and the sheet may be broken during attachment and detachment. Therefore, further development of a non-slip material that does not break even after repeated use and can maintain adhesiveness and peelability at a high level is required. In addition, the acrylic foam layer constituting the non-...

Claims

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Application Information

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IPC IPC(8): C08J9/28C09J7/00C09J7/26
CPCC09J7/0289C09J2201/622C09J2400/243C09J7/0296C08J9/28C08J2201/026C08J2201/0504C08J2205/044C08J2205/05C08J2375/16C08G18/4837C08G18/4854C08G18/755C08G18/757C08F290/067C08G2101/00C08G2170/40B32B5/18B32B2266/06B32B2307/744B32B2457/08B32B2479/00B32B2605/00B32B7/06B32B7/12B32B2307/748B32B2457/00C09J7/26C09J2301/312C08G18/672C08G18/48
Inventor 平尾昭兵藤智纪桶结卓司里田良成赤松素明日下部直己
Owner NITTO DENKO CORP
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