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Polyester bottle with ground fog degree and high carbonic anhydride isolation performance and producing method thereof

A high-carbon dioxide, high-barrier material technology, applied to other household appliances, applications, household appliances, etc., can solve the problems of reduced barrier performance, high cost, and difficulty in ensuring the complete distribution of inner layer materials, and achieve the goal of reducing haze Effect

Inactive Publication Date: 2009-08-19
CHINA RESOURCES PACKAGING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the pressure of carbon dioxide in carbonated beverages, beer, etc. will continue to decrease with the extension of time.
The solution is generally to use multi-layer packaging, that is, ordinary polyethylene terephthalate (PET) is used as the skeleton material on both sides, and a layer of high-barrier material is used in the middle; however, the packaging process of multi-layer structure is complicated. The cost is high, and the barrier performance is reduced because it is difficult to ensure that the inner layer material is completely distributed throughout the product
The current high-carbon dioxide barrier polyester bottle is made by adding high-barrier material to bottle-grade polyester and blowing it through a bottle blower. The high-barrier material is mainly semi-aromatic polyamide and polyethylene naphthalate. Ester or ethylene vinyl alcohol copolymer, but due to the poor compatibility of bottle-grade polyester and high-barrier materials, the transparency of the bottle is greatly reduced, and its haze is ≥ 10%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0014] Example 1: Add a second drying hopper and a screw mixer to the Husky HYPET90 injection molding machine. The main PET is a bottle-grade polyester product produced according to the national standard for bottle-grade polyester. Add it to the main hopper for drying. The drying temperature 160°C for 8 hours; add MXD6 nylon produced by Mitsubishi Gas in Japan to the second drying hopper for drying, under the protection of nitrogen, the drying temperature is 120°C for 6 hours; then the two dried materials Enter the screw mixer, convey the screw to measure the weight of polyester and MXD6 at 19:1; at the same time, use the melt pump to input the maleic anhydride modified acrylate into the screw mixer, and the amount of maleic anhydride modified acrylate is PET and MXD6 0.2% of the total weight of nylon; Taiwan Quanguan CPSB-TS2000WH blow molding machine is used for bottle blowing, and the mold is a 33g, 500ml bottle; the haze of the prepared polyester bottle is <5%.

example 2

[0015] Example 2: Add a second drying hopper and a screw mixer to the Husky HYPET90 injection molding machine. The main PET is a bottle-grade polyester product produced according to the national standard for bottle-grade polyester. Add it to the main hopper for drying. The drying temperature 160°C for 8 hours; add MXD6 nylon produced by Mitsubishi Gas in Japan to the second drying hopper for drying, under the protection of nitrogen, the drying temperature is 120°C for 6 hours; then the two dried materials Enter the screw mixer, convey the screw to measure the weight of polyester and MXD6 at 19:1; at the same time, use the melt pump to input the ethylene acrylic acid copolymer of model TC120 produced by Exxon in the United States into the screw mixer, and add the amount of ethylene acrylic acid copolymer It is 0.3% of the total weight of PET and MXD6 nylon; Taiwan Quanguan CPSB-TS2000WH blow molding machine is used for blowing, and the mold is a 33g, 500ml bottle; the haze of th...

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PUM

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Abstract

The invention relates to a low-haze high-carbon dioxide barrier polyester bottle which is characterized by being manufactured by mixing bottle grade polyester, high-barrier material and interface compatibilizer to be blown by a bottle blowing machine. The content of the bottle grade polyester accounts for 80-99 weight percent in the polyester bottle; the content of the high-barrier material accounts for 1-20 weight percent in the polyester bottle; the interface compatibilizer is maleic anhydride graft polyacrylic acid and ethene acrylate copolymer; and the content of the interface compatibilizer accounts for 0.1-0.5 weight percent in the polyester bottle. The invention also relates to a method for producing the low-haze high-carbon dioxide barrier polyester bottle. The invention has the advantage that the polyester bottle has low haze under the precondition of ensuring the carbon dioxide barrier ability of the polyester bottle.

Description

1. Technical field [0001] The invention relates to a polyester bottle with high carbon dioxide barrier properties, in particular to a polyester bottle with low haze and high carbon dioxide barrier properties and a production method thereof. 2. Background technology [0002] As we all know, the pressure of carbon dioxide in carbonated beverages, beer, etc. will continue to decrease with the extension of time. The main reason is that ordinary polyester bottles have poor barrier properties to carbon dioxide and will continue to lose during their storage period. The solution is generally to use multi-layer packaging, that is, ordinary polyethylene terephthalate (PET) is used as the skeleton material on both sides, and a layer of high-barrier material is used in the middle; however, the packaging process of multi-layer structure is complicated. The cost is high, and the barrier performance is reduced because it is difficult to ensure that the inner layer material is completely di...

Claims

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Application Information

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IPC IPC(8): C08L67/00C08L29/04C08L77/00B29D22/00B29B13/06B29C49/06B29L22/00
Inventor 朱振达宗建平傅伟铮陈小雷陈旭徐梅
Owner CHINA RESOURCES PACKAGING MATERIALS CO LTD
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