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
CN110437778AInactive Publication Date: 2019-11-12ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
Publication Date
2019-11-12
Estimated Expiration
Not applicable · inactive patent

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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.
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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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