Ester-based plasticizer

A technology of ester plasticizer and aromatic carboxylic acid ester, which is applied in the field of ester plasticizer and its preparation, can solve the problems such as the inability to improve the precipitation resistance, transparency or flexibility, and achieve excellent physical properties, high The effect of plasticizing efficiency

Inactive Publication Date: 2012-05-23
SK INNOVATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this plasticizer cannot achieve improved precipitation resistance without compromising transparency or flexibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0048] Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, these examples are only for illustrating the present invention, and the scope of the present invention is not limited thereto. In these Examples and Comparative Examples, physical properties were evaluated in the following manner.

[0049] hardness

[0050] Based on ASTM D2240, the hardness value of the sample is measured by pressing the measuring pin of the hardness tester (Type A) on a certain point of the sample for 5 seconds. The hardness values ​​of three points of each sample were measured, and then the average value of the hardness values ​​was obtained. The hardness was used as an index of plasticizing efficiency.

[0051] Tensile Strength, Elongation, Modulus at 100% Elongation

[0052] UTM was used to measure the tensile strength, elongation and modulus at 100% elongation of the samples based on ASTM D412. The dumbbell-shape...

Embodiment 1

[0056] Using 1,4-epoxyhexyl with 1 mole of ethylene oxide (EO), benzoic acid and n-hexanoic acid Preparation of Ester Plasticizers from Alkanedimethanol

[0057] First, 1.0 mole of 1,4-epoxyhexanedimethanol with 1 mole of EO, 0.6 mole of benzoic acid, 0.6 mole of n-hexanoic acid, 200 g of toluene (solvent) and 3.0 g of sodium bisulfate (catalyst) was placed in the formulation In a 2L round bottom flask with a stirrer and a condenser, it was then heated to 100°C and reacted for 12 hours.

[0058] After the reaction, depressurize to 5 mmHg with a vacuum pump at 200° C. to remove unreacted acid, and neutralize the reaction product with an aqueous solution of sodium carbonate (10% by weight), wash with water, dehydrate, and then filter with an adsorbent to obtain esters Plasticizer composition. The obtained ester plasticizer composition was a mixture containing the compound represented by the above formula 1 as a main component.

[0059] Preparation of polyvinyl chloride r...

Embodiment 2

[0063] Preparation of esters with 1,4-cyclohexanedimethanol with 2 moles of EO, benzoic acid and acetic acid plasticizer

[0064] Plasticizer and polyvinyl chloride compositions were prepared in the same manner as in Example 1, except that 1,4-cyclohexanedimethanol equipped with 2 moles of EO was used instead of 1,4-cyclohexanedimethanol equipped with 1 mole of EO. Cyclohexanedimethanol, and acetic acid was used instead of n-hexanoic acid. The test results are shown in Table 1 below.

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Abstract

The present invention relates to a novel ester-based plasticizer, and more specifically to one which is produced by means of an esterification reaction between a polyhydric alcohol, alkylene oxide and a fatty-acid or aromatic carboxylic acid. When the plasticizer according to the present invention is used to produce a poly(vinyl chloride) resin, there are advantageous effects in that it is possible to obtain products with outstanding plasticization efficiency, and physical properties such as hardness and tensile strength are also improved.

Description

technical field [0001] The invention relates to an ester plasticizer and a preparation method thereof. The ester plasticizer is synthesized by esterifying polyhydric alcohol and alkylene oxide with aliphatic carboxylic acid or aromatic carboxylic acid. Background technique [0002] Polyvinyl chloride resin is a homopolymer of vinyl chloride or a heteropolymer containing more than 50% vinyl chloride, and is a general-purpose resin that can be used in molding methods such as extrusion molding, injection molding, and calendering. By employing the molding method, polyvinyl chloride resin is widely used in the manufacture of various products such as pipes, wires, electric appliances, toys, films, sheets, artificial leather, tar canvas, tapes, food packaging, medical supplies, and the like. Various processing properties can be imparted to polyvinyl chloride resin by properly adding various additives (such as plasticizers, stabilizers, fillers, pigments, etc.). [0003] Among thes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/708C08K5/10C08L27/06
CPCC07C69/78C08K5/103C07C69/28C07C67/26C08L27/06C07C69/708C08K5/10
Inventor 洪承权权兑旭郑起男王浩
Owner SK INNOVATION CO LTD
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