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Hot-melt pressure sensitive adhesive for adhesive tapes, and preparation method thereof

A technology of hot-melt pressure-sensitive adhesives and tapes, applied in the direction of pressure-sensitive films/sheets, adhesives, heat-activated films/sheets, etc., which can solve the problems of poor bonding strength, poor aging performance of tapes, and inability to combine them at the same time

Inactive Publication Date: 2019-11-12
ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Adhesive tapes in the prior art have disadvantages such as poor aging performance and poor bonding strength. For existing adhesive tapes, the hot-melt pressure-sensitive adhesives are the initial adhesion (including 180 ° peeling force and ring initial adhesion), holding power, etc. These three properties cannot be combined at the same time, which leads to the problem of poor performance of the tape

Method used

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  • Hot-melt pressure sensitive adhesive for adhesive tapes, and preparation method thereof
  • Hot-melt pressure sensitive adhesive for adhesive tapes, and preparation method thereof
  • Hot-melt pressure sensitive adhesive for adhesive tapes, and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0033] A hot-melt pressure-sensitive adhesive for tapes, comprising the following components in parts by weight:

[0034]

[0035]

[0036] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0037] (1) According to Example 1, styrene-based thermoplastic elastomers (SIS, SBS), petroleum resin, rosin glyceride, antioxidant 1010, antioxidant 168, and naphthenic oil were weighed.

[0038] (2) Put a stirring bar, a thermometer and a softener into a washed and dried three-neck flask, the heating temperature is 130° C., and the stirring rate is 100 r / min.

[0039] (3) Add petroleum resin and primary and secondary antioxidants in step (2), fill with nitrogen, evacuate, heat up to 165°C, the stirring rate is the same as that of step (1), and the heating time is 40min.

[0040] (4) add rosin glyceride in step (3) reaction vessel, temperature is maintained on about 165 ℃, and stirring rate is identical with step (2), after petroleum resin is all me...

Embodiment 2

[0046] A hot-melt pressure-sensitive adhesive for tapes, comprising the following components in parts by weight:

[0047]

[0048] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0049] (1) According to Example 2, styrene-based thermoplastic elastomers (SIS, SBS), petroleum resin, rosin glyceride, antioxidant 1010, antioxidant 168, and naphthenic oil were weighed.

[0050] (2) Put a stirring rod, a thermometer, and a softener into a washed and dried three-neck flask, the heating temperature is 120° C., and the stirring rate is 100 r / min.

[0051] (3) Add petroleum resin and primary and secondary antioxidants in step (2), fill with nitrogen, evacuate, heat up to 160°C, the stirring rate is the same as in step (1), and the heating time is 38min.

[0052] (4) add rosin glyceride in step (3) reaction vessel, temperature is maintained on about 165 ℃, and stirring rate is identical with step (2), after petroleum resin is all melted to each com...

Embodiment 3

[0058] A hot-melt pressure-sensitive adhesive for tapes, comprising the following components in parts by weight:

[0059]

[0060] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0061] (1) According to Example 3, styrene-based thermoplastic elastomer (SIS, SBS), petroleum resin, rosin glyceride, antioxidant 1010, antioxidant 168, and naphthenic oil were weighed.

[0062] (2) Put a stirring rod, a thermometer, and a softener into a washed and dried three-neck flask, the heating temperature is 120° C., and the stirring rate is 100 r / min.

[0063] (3) Add petroleum resin and primary and secondary antioxidants in step (2), fill with nitrogen, evacuate, heat up to 160°C, the stirring rate is the same as in step (1), and the heating time is 40min.

[0064] (4) add rosin glyceride in step (3) reaction vessel, temperature is maintained on about 165 ℃, and stirring rate is identical with step (2), after petroleum resin is all melted to each comp...

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Abstract

The invention relates to a hot-melt pressure sensitive adhesive, and concretely relates to a hot-melt pressure sensitive adhesive for adhesive tapes, and a preparation method thereof. The hot-melt pressure sensitive adhesive comprises a styrenic thermoplastic elastomer SIS, a styrenic thermoplastic elastomer SBS, petroleum resin, rosin glyceride, a primary antioxidant, an auxiliary antioxidant anda softener, wherein the styrenic thermoplastic elastomer SIS is a linear structure, the styrene content is 20-28%, and the diblock content is 20-28%; and the styrenic thermoplastic elastomer SBS is astar structure, the styrene content is 28-32%, and the diblock content is 12-18%. The purpose of the invention is to solve the problem of poor use performance of the adhesive tapes, caused by failedcombination of the initial adhesion, the permanent adhesion and the aging resistance of existing hot-melt pressure sensitive adhesives for adhesive tapes. The initial adhesion (the initial adhesion includes ring initial adhesion and 180 DEG peel strength) of the hot-melt pressure sensitive adhesive of the invention meets use requirements, and has a high adhesion and a good aging resistance. The present invention also provides the preparation method of the hot-melt pressure sensitive adhesive for adhesive tapes.

Description

technical field [0001] The invention relates to a hot-melt pressure-sensitive adhesive, in particular to a hot-melt pressure-sensitive adhesive for adhesive tape and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive is a kind of adhesive that can be firmly bonded to the adherend without resorting to solvents, heat or other means, and only needs to apply mild pressure. Pressure-sensitive adhesives can generally be divided into three types: solvent-based, emulsion-based, and hot-melt. In the pressure-sensitive adhesive market, solvent-based pressure-sensitive adhesives have high environmental hazards, low production efficiency, and poor aging resistance. The presence of emulsifiers in emulsion-type pressure-sensitive adhesives makes the water resistance of the adhesive layer poor. Using water as a solvent, the volatilization of water will consume a lot of potential, thereby seriously reducing the construction efficiency. In addition, the ...

Claims

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Application Information

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IPC IPC(8): C09J157/02C09J153/02C09J11/06C09J11/08C09J7/35C09J7/38
CPCC08L2201/08C08L2205/025C08L2205/035C08L2207/04C09J7/35C09J7/387C09J11/06C09J11/08C09J157/02C09J2301/302C09J2301/304C09J2301/408C08L53/02C08L93/04C08K5/1345C08K5/526
Inventor 崔广军王鸣王晶薛静张文文吴明亮王锦昌李辉阳
Owner ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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