High-barrier bottle

A high-barrier and additive technology, applied in the chemical industry, can solve problems such as high technical requirements for equipment and difficulty in coating development, and achieve the effects of improving thermal stability, low cost, and improved performance

Active Publication Date: 2014-07-30
SINOPEC YIZHENG CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires high equipment technology, and its coating development is also difficult.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 235°C, and the reaction pressure at 0.25 MPa, and carry out the esterification reaction for 2 hours; after the reaction, put in PA630 with a relative viscosity of 2.0 share, 0.57 parts of L11, 0.38 parts of trimethyl phosphite, stirred for 10 minutes, then the temperature was set to 260°C, the pressure was gradually reduced to 50 Pa within 45 minutes, and the reaction was continued for 105 minutes to obtain the modified polyesteramide. The obtained modified polyamide ester is then dried and pre-crystallized to increase the viscosity to an intrinsic viscosity of 1.00dL / g to obtain a barrier material for a high barrier bottle. Example 2

Embodiment 2

[0030] Put 100 parts of terephthalic acid, 50 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 265°C, and the reaction pressure at 0.2 MPa, and carry out the esterification reaction for 2 hours; after the reaction, put in PA1110 with a relative viscosity of 2.1 part, DH201-4600.5 part and stirred for 60min, then the temperature was set to 265°C, the pressure was gradually reduced to 300Pa within 50min, and the reaction was continued for 95min to obtain the modified polyesteramide. The obtained modified polyamide ester is then dried and pre-crystallized, and the viscosity is increased to an intrinsic viscosity of 0.96dL / g to obtain a barrier material for a high barrier bottle.

Embodiment 3

[0032] Put 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 235°C, and the reaction pressure at 0.25 MPa, and carry out esterification reaction for 1 hour; after the reaction, put in PA620 with a relative viscosity of 2.2 share, 10.18 parts of H16, 0.09 parts of phosphorous acid, stirred for 10 minutes, then the temperature was set to 260 ° C, the pressure was gradually reduced to 50 Pa within 45 minutes, and the reaction was continued for 106 minutes to obtain the modified polyesteramide. The obtained modified polyamide ester is then dried and pre-crystallized to increase the viscosity to an intrinsic viscosity of 0.90dL / g to obtain a barrier material for a high barrier bottle.

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PUM

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Abstract

The invention discloses a high-barrier bottle which is prepared by employing modified polyesteramide. The modified polyesteramide is prepared from the following raw materials: terephthalic acid, glycol, aliphatic polyamide, an additive A, an additive B and an additive C. The provided high-barrier bottle is prepared from modified polyesteramide, the cost is low, and through the combination of the additive A, the additive B and the additive C, the thermal stability of the high-barrier bottle is substantially improved, and thus the chain breaking speed of melt molecular chains during forming processing of the high-barrier bottle and the reducing degree of the product characteristic viscosity are reduced; and the provided modified polyesteramide is endowed with relatively good gas barrier property because an amide group is introduced into a polyester main chain, and oxygen-barrier membranes prepared from the modified polyesteramide are high in oxygen barrier property and carbon dioxide barrier property.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a high-barrier bottle. Background technique [0002] Polyester is used as a packaging container material because of its stable properties and light weight, and is widely used in food packaging industries such as beverages and edible oils. With the development of the beverage industry and packaging industry, the resinization of packaging materials for fruit juice and beer has become a trend, which puts forward higher requirements for the barrier properties of packaging resins. This type of beverage is very sensitive to oxygen, because oxygen in Long-term transportation, storage, and shelf life of beverage products will have a serious impact on their quality, and carbonated carbonated beverages will also change in taste due to the escape of gas in the packaging, so polyester packaging materials are required to have a long-term gas barrier function, and the polyester ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44C08K3/32C08K5/521C08K5/524C08K5/053C08K5/1539C08K5/092
Inventor 李乃祥赵付平龚柳柳马立刚
Owner SINOPEC YIZHENG CHEM FIBER
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