Modified hot-melt pressure-sensitive adhesive and preparation method thereof

A hot-melt pressure-sensitive adhesive, modified technology, applied in the direction of adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problem of incompatibility of peel strength and holding force, unstable quality, Poor fluidity and other problems, to achieve the effect of reducing peel strength, reducing the amount of glue remaining, and reducing the viscosity of the melt
CN110734719AInactive Publication Date: 2020-01-31ZIBO 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
2020-01-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a hot-melt pressure-sensitive adhesive, in particular to a modified hot-melt pressure-sensitive adhesive and a preparation method thereof. The modified hot-melt pressure-sensitive adhesive comprises the following components: a styrene thermoplastic elastomer, petroleum resin, Fischer-Tropsch wax, pentaerythritol ester, a main antioxidant, an auxiliary antioxidant and a softener; wherein the styrene thermoplastic elastomer is of an SIS linear structure, the content of styrene is 15%-21%, and the content of diblock is 50%-75%. The C5 petroleum resin and the pentaerythritol ester are dissolved in both the rubber phase (polyisoprene phase) and the hardness phase (polystyrene phase) of the thermoplastic elastomer. The two tackifying resins act together to improve the compatibility of the hot melt pressure sensitive adhesive. The raw materials cooperate with each other to obtain the hot melt pressure sensitive adhesive which has good fluidity, meets the use requirements of adhesive force, does not increase peel strength with time, and can be peeled off from the substrate cleanly.
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Description

technical field

[0001] The invention relates to a hot-melt pressure-sensitive adhesive, in particular to a modified hot-melt pressure-sensitive adhesive and a preparation method thereof. Background technique

[0002] Hot-melt pressure-sensitive adhesive is a kind of adhesive with thermoplastic elastomer as the main material, which can be bonded with a small amount of external force by adding tackifying resin, plasticizer, antioxidant and a small amount of other components. Due to the convenience and quickness of hot-melt pressure-sensitive adhesives, hot-melt pressure-sensitive adhesives are widely used in hygiene materials, food, labels and other industries.

[0003] Compared with the traditional hot-melt pressure-sensitive adhesive, the hot-melt pressure-sensitive adhesive modified by Fischer-Tropsch wax can be applied in various occasions conveniently and quickly. The existing hot-melt pressure-sensitive adhesive has the following disadvantages: the addition of tackifyin...

Claims

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