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Polymeric thermoplastic compositions having excellent resistance to moisture and oxygen transmission and sheet which are made of these polymeric thermoplastic compositions

A resin composition and sheet technology, which can be used in synthetic resin layered products, household appliances, transportation and packaging, etc., can solve the problems of oxygen and moisture barrier properties.

Active Publication Date: 2012-05-30
SK INNOVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it has another disadvantage, the barrier performance of oxygen and moisture drops sharply when the temperature is higher than the glass transition temperature

Method used

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  • Polymeric thermoplastic compositions having excellent resistance to moisture and oxygen transmission and sheet which are made of these polymeric thermoplastic compositions
  • Polymeric thermoplastic compositions having excellent resistance to moisture and oxygen transmission and sheet which are made of these polymeric thermoplastic compositions
  • Polymeric thermoplastic compositions having excellent resistance to moisture and oxygen transmission and sheet which are made of these polymeric thermoplastic compositions

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0086] [Preparation Example 1] 3-Methyl-5-[{BF 4 - Bu 3 N + (CH 2 ) 3} 2 Synthesis of CH}]-salicylaldehyde

[0087] The title compound was prepared by hydrolysis of the ligand represented by the structure below. This compound is synthesized according to known methods. (Angew. Chem. Int. Ed., 2008, 47, 7306-7309)

[0088] [Structural formula 1]

[0089]

[0090] The compound of structural formula 1 was dissolved in 4 mL of dichloromethane, after dissolution, 2N2, 5 mL of HI aqueous solution was added, and stirred at 70° C. for 3 hours. The aqueous layer was removed, and the dichloromethane layer was washed with water. The dichloromethane layer was then dried with anhydrous magnesium chloride, and the solvent was removed under reduced pressure. Purification by silica gel column chromatography of a mixed solution of dichloromethane / ethanol 10:1 afforded 3-methyl-5-[{BF 4 - Bu 3 N + (CH 2 ) 3} 2 CH}]-salicylaldehyde 0.462g. (Yield: 95%). Dissolve the compoun...

preparation example 2

[0092] [Preparation Example 2] Synthesis of Complex 1

[0093] Complex 1 represented by the following general formula 13 is 3-methyl-5-[{BF prepared in Preparation Example 1 4 - Bu 3 N + (CH 2 ) 3} 2 CH}]-salicylaldehyde compound was synthesized.

[0094] [Formula 13]

[0095]

[0096] Weigh ethylenediamine dihydrochloride 10mg (0.074mmol), sodium tert-butoxide 14mg and 3-methyl-5-[{BF prepared in Preparation Example 1 4 - Bu 3 N + (CH 2 ) 3} 2 CH}]-salicylaldehyde compound 115 mg, and placed in a vial in a dry box, then added 2 mL of ethanol in the vial. The vial was stirred overnight at room temperature. The reaction mixture was filtered and ethanol was removed from the filtrate under pressure. After removal of ethanol, the filtrate was redissolved in dichloromethane and filtered once more. After removing the solvent under pressure, Co(OAc) was added 213mg (0.074mmol) and ethanol 2mL. The reaction mixture was stirred at room temperature for 3 hours, the...

preparation example 3

[0097] [Preparation Example 3] Synthesis of Copolymer (PPC) Using Carbon Dioxide / Propylene Oxide

[0098] 1162 g (20.0 mol) of propylene oxide dissolved with 0.454 g of the complex (calculated based on the monomer / catalyst ratio) was injected into a 3L autoclave through a tube. The complex is complex 1 prepared in Preparation Example 2. Carbon dioxide was injected into the reactor with a pressure of 17 bar, while the temperature of the reactor was raised by using a circulating water bath preset at 80° C., and stirring was started. After 30 minutes, measure and record the time point at which the pressure of carbon dioxide starts to drop. After 2 hours from this time point, the reaction was stopped by removing carbon dioxide gas. Further, 830 g of propylene oxide was added to the obtained viscous solution to reduce the viscosity of the solution, and flowed through a pad of silica gel [50 g, produced by MERK Company, particle size 0.040-0.063 mm (230-400 mesh)] to obtain a colo...

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Abstract

Disclosed is a resin composition for blocking oxygen and moisture, and a sheet for blocking oxygen and moisture manufactured by using thereof, in which the resin composition includes polycarbonate terpolymer produced by reacting different two epoxides compounds with carbon dioxide.

Description

technical field [0001] The present invention relates to a resin composition for producing a film or sheet used in the field of food packaging, and more particularly, to a resin composition having an excellent effect of blocking oxygen and moisture. Background technique [0002] Nylon and ethylene-vinyl alcohol (EVOH), which are recently used in the field of food packaging, have excellent gas barrier properties, but do not have good moisture barrier properties. Specifically, the gas barrier properties decrease sharply with humidity. [0003] Aliphatic polycarbonate is an easily biodegradable polymer and has excellent gas and moisture barrier properties, so it can be effectively used for packaging materials or coating materials. Aliphatic polycarbonates are prepared from epoxides and carbon dioxide. Because it does not use the harmful compound phosgene, and carbon dioxide is not expensive, it has high environmental value. [0004] US Patent No. 4142021 discloses a method of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08G64/42B32B27/28C08J5/18
CPCC08G64/34B32B27/36B32B27/06B32B27/08B32B27/18B32B27/20B32B27/365B32B2250/24B32B2270/00B32B2307/308B32B2307/7163B32B2307/7244B32B2307/7246B32B2307/734B32B2439/70Y10T428/31507C08L69/00C08J5/18C08L2201/14
Inventor 孙寅宪田民湖玉明岸
Owner SK INNOVATION CO LTD
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