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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

Inactive Publication Date: 2020-01-31
ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The disadvantages of hot-melt pressure-sensitive adhesives in the prior art are: the peel strength and the holding force cannot be combined at the same time, and there are problems such as large amount of glue remaining due to difficult peeling, unstable quality, and poor fluidity; the purpose of the present invention is to provide A modified hot-melt pressure-sensitive adhesive, which has good fluidity, a holding force that meets the requirements of use, and a hot-melt pressure-sensitive adhesive that does not increase in peel strength with time and can be peeled clean from a substrate. The invention also provides a its preparation method

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A modified hot-melt pressure-sensitive adhesive, comprising the following components in parts by weight:

[0042]

[0043] Among them: styrene thermoplastic elastomer is SIS, linear structure, styrene content is 15%, diblock content is 50%.

[0044] The petroleum resin is a C5 petroleum resin with a softening point of 80°C.

[0045] The softening point of pentaerythritol ester is 95°C.

[0046] Fischer-Tropsch wax is a methylene polymer synthesized by a coal-based Fischer-Tropsch polymerization process. It is produced by a cobalt-based catalyst. The molecular weight is about 800. The freezing point of the Fischer-Tropsch wax is 105°C.

[0047] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0048] (1) According to Example 1, weigh styrene thermoplastic elastomer, petroleum resin, Fischer-Tropsch wax, pentaerythritol ester, primary antioxidant, secondary antioxidant, softener.

[0049] (2) Wash and dry a 100ml three-neck flask, p...

Embodiment 2

[0054] A modified hot-melt pressure-sensitive adhesive, comprising the following components in parts by weight:

[0055]

[0056] Among them: styrene thermoplastic elastomer is SIS, linear structure, styrene content is 18%, and diblock content is 60%.

[0057] The petroleum resin is a C5 petroleum resin with a softening point of 89°C.

[0058] The softening point of pentaerythritol ester is 100°C.

[0059] Fischer-Tropsch wax is a methylene polymer synthesized by a coal-based Fischer-Tropsch polymerization process. It is produced by a cobalt-based catalyst. The molecular weight is about 700. The freezing point of the Fischer-Tropsch wax is 105°C.

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

[0061] (1) According to Example 2, styrene-based thermoplastic elastomer, petroleum resin, Fischer-Tropsch wax, pentaerythritol ester, primary antioxidant, secondary antioxidant, and softener were weighed.

[0062] (2) Wash and dry a 100...

Embodiment 3

[0067] A modified hot-melt pressure-sensitive adhesive, comprising the following components in parts by weight:

[0068]

[0069] Among them: styrene thermoplastic elastomer is SIS, linear structure, styrene content is 20%, diblock content is 60%.

[0070] The petroleum resin is a C5 petroleum resin with a softening point of 92°C.

[0071] The softening point of pentaerythritol ester is 105°C.

[0072] Fischer-Tropsch wax is a methylene polymer synthesized by a coal-based Fischer-Tropsch polymerization process. It is produced by a cobalt-based catalyst. The molecular weight is about 800. The freezing point of the Fischer-Tropsch wax is 105°C.

[0073] The preparation method of the hot-melt pressure-sensitive adhesive is as follows:

[0074] (1) According to Example 3, styrene-based thermoplastic elastomer, petroleum resin, Fischer-Tropsch wax, pentaerythritol ester, primary antioxidant, secondary antioxidant, and softener were weighed.

[0075] (2) Wash and dry a 100ml t...

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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.

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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Application Information

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IPC IPC(8): C09J157/02C09J153/02C09J11/04C09J11/06
CPCC09J11/04C09J11/06C09J157/02C08L53/02C08L91/06C08K5/1345C08K5/526C08K5/103
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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