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Rapid-melted copolyester hot melt glue and preparation method thereof

A technology of copolyester and hot-melt adhesives, which is applied in the direction of adhesives, etc., can solve problems that affect the bonding performance of hot-melt adhesive products and are not clear, and achieve the effects of shortening melting time, improving production efficiency, and reducing energy consumption

Inactive Publication Date: 2017-10-10
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN102925098A discloses a fast-melting hot-melt adhesive and its preparation method, but it is aimed at the polyamide hot-melt adhesive system, and shortens the melting time by adding additives, such as metal stearate. However, it is not clear whether the additives affect the bonding performance of the hot melt adhesive product itself

Method used

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  • Rapid-melted copolyester hot melt glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A fast-melting copolyester hot-melt adhesive, the composition of the dibasic acid in its main material is: 166g of terephthalic acid, 49.8g of isophthalic acid, 43.8g of 1,6-adipic acid; The composition of the diol is: 105.3g of 1,4-butanediol, 14.26g of ethylene glycol, 86.92g of diethylene glycol, and 21.24g of 1,6-hexanediol; among its auxiliary materials, the addition of tetrabutyl titanate The amount is 0.26g, and the addition amount of triphenyl phosphite is 0.65g.

[0018] The preparation method of the copolyester hot-melt adhesive of above-mentioned fast melting, step is as follows:

[0019] (1) Add the above-mentioned dibasic acid, dibasic alcohol and catalyst into a 1L reactor for esterification reaction, start stirring, and gradually raise the temperature to 160°C. At this time, water begins to distill, and continue to gradually raise the temperature to 210°C. When the water output reaches 95% or more of the theoretical value, the esterification reaction end...

Embodiment 2

[0023] A fast-melting copolyester hot-melt adhesive, the composition of the dibasic acid in its main material is: 166g of terephthalic acid, 66.4g of isophthalic acid, 21.9g of 1,6-adipic acid; The composition of the diol is: 97.2g of 1,4-butanediol, 26.66g of ethylene glycol, 57.24g of diethylene glycol, and 31.86g of 1,6-hexanediol; among its auxiliary materials, the addition of tetrabutyl titanate The amount is 0.25g, and the addition amount of triphenyl phosphite is 0.76g.

[0024] The preparation steps of the fast-melting copolyester hot-melt adhesive described in Example 2 are the same as in Example 1, and the resulting product prepared in Example 2 is marked as A2.

Embodiment 3

[0026] A fast-melting copolyester hot-melt adhesive, the composition of the dibasic acid in its main material is: 166g of terephthalic acid, 49.8g of isophthalic acid, 29.2g of 1,6-adipic acid; The composition of the diol is: 96.3g of 1,4-butanediol, 19.84g of ethylene glycol, 67.84g of diethylene glycol, and 24.78g of 1,6-hexanediol; among its auxiliary materials, the addition of tetrabutyl titanate The amount is 0.12g, and the addition amount of triphenyl phosphite is 0.61g.

[0027] The preparation steps of the fast-melting copolyester hot-melt adhesive described in Example 3 are the same as in Example 1, and the resulting product prepared in Example 3 is marked as A3.

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Abstract

The invention discloses rapid-melted copolyester hot melt glue and a preparation method thereof. Main materials of the rapid-melted copolyester hot melt glue comprise diacid and diol, wherein diacidis prepared from a mixture of terephthalic acid, isophthalic acid and 1,6-adipic acid in a mole ratio being 1:(0.3-0.4):(0.15-0.3), diol is prepared from a mixture of 1,4-butanediol, ethanediol, diglycol and 1,6-hexanediol in a mole ratio being 1:(0.2-0.4):(0.5-0.7):(0.15-0.2), and a mole ratio of diacid to diol is 1:1.5; auxiliary materials of the rapid-melted copolyester hot melt glue comprise a catalyst and an antioxidant. By means of design for a unique raw material ratio, especially a ratio of the main materials, and no addition of novel additives, a copolyester hot melt glue product is directly prepared through conventional one-step esterification and a one-step polycondensation reaction, the melting time of the copolyester hot melt glue product is greatly shortened on the premise that the binding performance of the product is guaranteed and industrial coating is facilitated, so that the copolyester hot melt glue product is more suitable for being applied to the field of textile lining cloth, production efficiency of the application implementing field is improved, and energy consumption is reduced.

Description

technical field [0001] The invention relates to a copolyester hot-melt adhesive and a preparation method thereof, in particular to a fast-melting copolyester hot-melt adhesive suitable for textile interlinings and a preparation method thereof. Background technique [0002] As an emerging environmentally safe adhesive, hot melt adhesives are widely used in many fields, such as the textile industry, and the packaging and sealing of food, beverages, and medicines. Among them, copolyester hot-melt adhesive has a very important application in the textile interlining industry. It mainly applies the hot-melt adhesive powder on the interlining through the powder-sprinkling method, and then melts and shapes it through an oven. Therefore, the hot-melt adhesive product itself The melting time directly affects the production efficiency of the interlining. [0003] The melting time of hot melt adhesive refers to the time required for the hot melt adhesive product to change from a solid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J167/02C08G63/672
CPCC08G63/672C09J167/02
Inventor 毛雨雪张勇健郑仁峰
Owner KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD
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