Plasticizer composition comprising cyclohexane 1,4-diester-based compound, and resin composition comprising same

A technology of resin composition and cyclohexane, which is applied in the field of plasticizer composition and resin composition containing the plasticizer composition, can solve the problems of harmfulness to human body, destruction of endocrine system environmental hormones, volatilization loss rate of processing performance, Migration loss rate thermal stability limitations and other issues, to achieve excellent stress resistance, excellent volatility resistance

Active Publication Date: 2019-01-04
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these compounds are environmental hormones that disrupt the endocrine system and are harmful to the human body, and are useful in improving product properties such as resin processability, absorption rate, volatilization loss rate, migration loss rate, thermal stability, etc., depending on the application field. limitation

Method used

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  • Plasticizer composition comprising cyclohexane 1,4-diester-based compound, and resin composition comprising same
  • Plasticizer composition comprising cyclohexane 1,4-diester-based compound, and resin composition comprising same
  • Plasticizer composition comprising cyclohexane 1,4-diester-based compound, and resin composition comprising same

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preparation example Construction

[0058] Method for preparing plasticizer composition

[0059] According to one embodiment of the present invention, there is provided a method for preparing a plasticizer composition, the preparation method comprising: preparing an ester composition by performing transesterification of a diester compound and an alcohol; The hydrogenation of the ester composition is carried out to prepare the cyclohexane 1,4-diester compound composition, wherein the diester compound includes bis(2-ethylhexyl) terephthalate (DEHTP ).

[0060] The preparation method of the plasticizer composition may include: preparing an ester composition in which three types of ester compounds are mixed by performing transesterification of the diester compound and alcohol.

[0061] The diester compound used as the reactant in the transesterification reaction can be bis(2-ethylhexyl) terephthalate, wherein, 2-ethylhexyl is ethyl and hexyl having 6 carbon atoms. - a carbon-bonded substituent at a position whic...

Embodiment 1

[0108] 1) Esterification

[0109] 2,000 g of bis(2-ethylhexyl) terephthalate (DEHTP) and 340 g (17 parts by weight relative to 100 parts by weight of DEHTP) were added to a reactor equipped with a stirrer, condenser and decanter ) of n-butanol, and then under a nitrogen atmosphere at a reaction temperature of 160 ° C for 2 hours of transesterification reaction to obtain dibutyl terephthalate (DBTP) containing 4% by weight, 35% by weight and 61% by weight ), butyl (2-ethylhexyl) terephthalate (BEHTP) and bis (2-ethylhexyl) terephthalate (DEHTP) ester plasticizer composition.

[0110] The ester plasticizer composition was subjected to mixed distillation to remove butanol and 2-ethylhexanol, thereby finally preparing a mixed composition.

[0111] 2) Hydrogenation

[0112] 1,000 g of the composition prepared by the above-mentioned esterification and 20 g of ruthenium catalyst (N.E CHEMCAT) were added to a 1.5 L high-pressure reactor as raw materials, and hydrogen gas was add...

Embodiment 2

[0114] 1) Esterification

[0115] Into a 3 L four-neck reactor equipped with a cooler, condenser, decanter, reflux pump, temperature controller, stirrer, etc., were added 498.0 g of purified terephthalic acid (PTA), 585 g of 2-ethyl Hexanol (2-EH) (molar ratio PTA:2-EH=1.0:1.5) and 333 g of butanol (BA) (molar ratio PTA:BA=1.0:1.5). 10 g (2.0 parts by weight relative to 100 parts by weight of PTA) of a sulfonic acid-based catalyst (methanesulfonic acid (MSA)) was added thereto, and then the temperature of the reactor was slowly raised to about 150°C. Water generation started at about 130°C, and the esterification reaction was carried out under atmospheric pressure at a final reaction temperature of about 220°C for about 4.5 hours while continuously introducing nitrogen, and was terminated when the acid value reached 6.0.

[0116] After the reaction is over, distillation extraction is carried out under reduced pressure for 0.5 hours to 4 hours to remove unreacted raw materia...

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Abstract

The present invention relates to a plasticizer composition in which three types of cyclohexane 1,4-diester-based compounds prepared through transesterification and hydrogenation are mixed, the plasticizer composition having an alkyl substituent of dicarboxylate, which comprises a 2-ethylhexyl group and a butyl or isobutyl group having a carbon number smaller than that of the 2-ethylhexyl group, and thus the composition, when used in a resin composition, has excellent resistance to stress, and can provide excellent physical properties such as migration resistance and plasticization efficiency while maintaining tensile strength and elongation.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the priority and benefits of Korean Patent Application No. 10-2017-0001572 filed on January 04, 2017, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to a plasticizer composition comprising cyclohexane 1,4-diester compound and a resin composition comprising the plasticizer composition, more particularly, to a plasticizer composition and a resin composition comprising the plasticizer composition The resin composition of the plasticizer composition comprising a hydrogenated compound derived from a terephthalate compound having one or more components. Background technique [0004] Typically, plasticizers form esters through the reaction between alcohols and polycarboxylic acids, such as phthalic or adipic acid. Commercially important examples of esters include: adipate esters of C8, C9 and C10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/12C07C69/75C08L101/00C08K5/00
CPCC08K5/00C08L101/00C08K5/12C07C69/75C08K5/0016C08K2201/014C08L27/06C08F14/06C08J2327/06C08J5/18
Inventor 金显圭李美然郑锡琥赵允基文正周金宙镐
Owner LG CHEM LTD
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