Hydroxypivalyl hydroxypivalate ester plasticizer composition and method of preparing the same

A technology of hydroxypivalate hydroxypivalate and ester plasticizers, which is applied in the field of ester plasticizer compositions of hydroxypivalate hydroxypivalate, and can solve the problem of poor elongation and low compatibility , poor migration resistance and other issues, to achieve the effect of excellent tensile strength

Active Publication Date: 2008-01-09
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility of the ester compound with polyvinyl chloride resin is lower than that of phthalates, and ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] (1) Preparation of ester plasticizer composition of hydroxypivalate hydroxypivalate

[0115] Add 2 mol of hydroxypivalate hydroxypivalate, 1.6 mol of 2-ethylhexanoic acid, 3.6 mol of benzoic acid, 60 g of xylene as entrainer, 1.5 g of tetraisopropyl titanate as catalyst into a In a 2L 4-neck round flask in a reactor, the temperature was raised to 220°C, and then the mixture was allowed to react for 8 hours.

[0116] After esterification, the pressure of the flask was reduced to 5 mmHg at 220° C. using a vacuum pump to remove unreacted acid, and then a neutralization reaction was performed using 10 wt % NaOH aqueous solution. The neutralized product was washed with water and dehydrated, and an adsorbent was added thereto and filtered. As a result, an ester plasticizer composition of hydroxypivalate was obtained. The ester compound of the obtained hydroxypivalate hydroxypivalate was analyzed, and it was found that the composition was: 0.4wt% of 2-ethyl-hexanoic acid 3-(...

Embodiment 2

[0121] An ester plasticizer composition of hydroxypivalate hydroxypivalate was prepared in the same manner as in Example 1 except that the amount of the reactant used was changed as shown in Table 1. The ester composition of the obtained hydroxypivalate hydroxypivalate was analyzed, and it was found that the composition of compounds 1 to 10 was 1.4wt%, 3.5wt%, 2.2wt%, 20.5wt%, 19.8wt%, 21.3wt%, respectively. wt%, 20.0 wt%, 2.4 wt%, 5.1 wt%, and 2.5 wt%.

[0122] Then, a sample of the ester plasticizer composition of hydroxypivalate hydroxypivalate prepared above was prepared in the same manner as in Example 1. The same test as in Example 1 was carried out on the prepared sample. The results are shown in Table 2.

Embodiment 3

[0124] An ester plasticizer composition of hydroxypivalate hydroxypivalate was prepared in the same manner as in Example 1 except that the amount of the reactant used was changed as shown in Table 1. The ester composition of the obtained hydroxypivalate hydroxypivalate was analyzed, and the composition was found to be: compounds 1 to 10 were respectively 2.2wt%, 3.4wt%, 1.4wt%, 32.0wt%, 19.5wt%, 17.3 wt%, 10.6 wt%, 4.0 wt%, 5.1 wt%, and 1.6 wt%.

[0125] Then, a sample of the ester plasticizer composition of hydroxypivalate hydroxypivalate prepared above was prepared in the same manner as in Example 1. The same test as in Example 1 was carried out on the prepared sample. The results are shown in Table 2.

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Abstract

Provided are a plasticizer composition including a hydroxypivalyl hydroxypivalate ester and a neopentylglycol ester, and a method of preparing the plasticizer composition. The plasticizer composition provides a polyvinyl chloride resin having excellent properties of heat loss, migration resistance and plasticization efficiency, and tensile strength, elongation, etc.

Description

technical field [0001] The present invention relates to a hydroxypivalylhydroxypivalate ester plasticizer composition, and more particularly, to a plasticizer used as a plasticizer for polyvinyl chloride (PVC) resins Ester plasticizer compositions of hydroxypivalate. Background technique [0002] Polyvinyl chloride resins are polymers of vinyl chloride monomers or copolymers containing 50% or more of vinyl chloride, and are widely used resins produced by extrusion molding, injection molding, calendaring, and the like. Polyvinyl chloride resins are used in a wide variety of applications such as pipes, wires, electrical and mechanical products, toys, films, boards, artificial leather, tarpaulins, tapes, food packaging and medical products, all of which can be manufactured using the methods described above. The polyvinyl chloride resin can have various properties depending on additives such as plasticizers, stabilizers, fillers, pigments, etc. added thereto in appropriate prop...

Claims

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Application Information

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IPC IPC(8): C08G63/02C07C69/66C08K5/10
CPCC07C67/44C07C69/66C08F2/44C08F214/06C08G63/02C08J3/18C08K5/0016C08K5/10
Inventor 金显圭李启锡李揆一田炳圭
Owner LG CHEM LTD
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