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High-performance left and right paste hot melt adhesive and preparation method thereof

A high-performance, hot-melt adhesive technology, applied in adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve problems that affect consumer experience, adult diapers are large, and smell heavy

Active Publication Date: 2021-09-14
佛山南宝高盛高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this stage, most left and right hot melt adhesives on the market use rosin resin, which has a strong smell and affects the experience of consumers; and structures such as magic buckles are usually smooth, making it difficult to form repeated and effective pastes; with the aging of the society's population As the degree increases, the market demand for adult diapers is increasing, because the manufacturing cost of adult diapers is relatively high, which can be solved by replacing the core body, which requires hot-melt adhesives on the left and right to realize the function of repeated pasting

Method used

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  • High-performance left and right paste hot melt adhesive and preparation method thereof
  • High-performance left and right paste hot melt adhesive and preparation method thereof
  • High-performance left and right paste hot melt adhesive and preparation method thereof

Examples

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Effect test

preparation example Construction

[0058] The present invention also provides a preparation method of high-performance left and right pasting hot melt adhesive, comprising the following steps:

[0059] S1: Confirm that the bottom valve of the reactor is closed, turn on steam heating, turn on the stirring paddle, and add plasticizer, poly-α-methylstyrene resin and antioxidant;

[0060] S2: Raise the temperature of the reactor in S1 to 150-165°C, and add the formulated polymer; after the polymer is added, stir for 15 minutes, then add styrene-butadiene rubber, and wait until the material is no longer increased after the addition Use a scraper to scrape off the polymer and styrene-butadiene rubber on the tank wall of the reaction kettle and the stirring paddle, and continue to stir. After stirring for 45 minutes, take a sample to see if the sample is completely melted. If there are still particles, continue to stir and record the extended stirring. time until the polymer and styrene-butadiene rubber melt;

[0061...

Embodiment 1-5 and comparative example 1

[0070] The raw materials were weighed according to the proportioning in Table 1 respectively, and the products were prepared according to the steps in Examples 1-5, see Table 1 for details:

[0071] Table 1 embodiment 1-5 and comparative example 1 raw material ratio table

[0072]

[0073] Wherein, unless otherwise specified in Table 1, in order to reflect the comparability of test results, the raw materials used are the same.

[0074] It should be noted that the ratio of terpene resin to hydrogenated C9 petroleum resin in the above formula is 1:8; the ratio of terpene resin to hydrogenated C5 petroleum resin is 1:8.

[0075] The softening point of high softening point hydrogenated C5 petroleum resin is 110-130°C; the softening point of high softening point hydrogenated C9 petroleum resin is 110-130°C;

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Abstract

The invention discloses a high-performance left and right paste hot melt adhesive and a preparation method thereof. The high-performance hot melt adhesive comprises the following components in percentage by mass: 15-35% of a polymer, 3-10% of butadiene styrene rubber, 10-25% of a plasticizer, 25-55% of tackifying resin, 0.1-2% of an antioxidant and 1-5% of poly-alpha-methylstyrene resin. The sum of the mass percentages of the components is 100%. According to the prepared high-performance left and right paste hot melt adhesive, excellent mechanical properties are achieved through the butadiene styrene rubber and the fully hydrogenated petroleum resin, so that the hot melt adhesive has excellent initial adhesion and stripping force, and by adding SEBS or SBS or SIS with high tensile strength and matching with the poly-alpha-methylstyrene resin, the hot melt adhesive can resist high temperature and has excellent holding power and high thermal stability; and the hot melt adhesive is applied to the fields of magic buckles of paper diapers, PP stickers, magic tapes and the like , and the function of repeated sticking can be achieved through the left and right paste hot melt adhesive.

Description

technical field [0001] The invention relates to the application field of hot-melt adhesives, in particular to a high-performance left-right hot-melt adhesive and a preparation method thereof. Background technique [0002] Hot melt adhesive is a kind of plastic adhesive, which is an environmentally friendly chemical product. With the development of the economy, people's living standards are also constantly improving. There are more and more people using disposable sanitary diapers such as baby diapers and even adult diapers, and the scope is wider and wider. The requirements for disposable sanitary diapers are getting higher and higher. Get higher and higher. Therefore, in order to meet the needs of market development, disposable sanitary diapers are constantly improving product quality. The structure of left and right stickers is usually used on diapers to realize the stickiness of the two ends of the diaper; the left and right stickers are composited by structures such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J157/02C09J145/00C09J153/02C09J109/06C09J125/16
CPCC09J157/02C08L2205/025C08L2205/035C08L45/00C08L53/02C08L9/06C08L25/16
Inventor 余俊良曹少波吴永升
Owner 佛山南宝高盛高新材料有限公司
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