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High solvating mixed terephthalate ester plasticizer compositions

A technology of plasticizer and composition, applied in the field of PVC composition, can solve the problems of heating storage, capital investment, operation cost, etc.

Pending Publication Date: 2022-02-22
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These high freezing temperatures require heated storage and delivery lines, additional capital investment and ongoing operating expenses

Method used

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  • High solvating mixed terephthalate ester plasticizer compositions
  • High solvating mixed terephthalate ester plasticizer compositions
  • High solvating mixed terephthalate ester plasticizer compositions

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0080] Example 1: Synthesis of butyl (2-butoxyethyl) terephthalate with equimolar alcohol

[0081] A 2-liter three-neck round bottom flask was charged with dimethyl terephthalate (2 mol), n-butanol (3 mol), 2-butoxyethanol (3 mol) and 1000 ppm titanium(IV) tetraisopropoxide. The flask was equipped with a stir bar, 8" column with Penn State packing, and a vapor distributing distillation head. Heat the mixture to reflux under a stream of nitrogen and set the vapor distributing distillation head to 30% distillation at 69°C or less. Methyl alcohol is distilled under the situation of going out (take-off).When having collected the MeOH (4mol) of theoretical amount, quench catalyzer with the aqueous sodium hydroxide solution of 2.5wt%, further wash mixture with saturated sodium chloride, until washing The pH of the aqueous solution was reduced to about 9-10. Excess alcohol was removed under reduced pressure at 150°C. After drying, the product was cooled to 90°C and filtered through a...

example 2-6

[0082] Example 2-6 - Synthesis of other butyl / glycol ether terephthalates

[0083] Ex 2-6 were prepared by adapting the procedure for preparing Ex 1 using different ratios of n-butanol and 2-butoxyethanol or 2-(2-butoxyethoxy)ethanol. The results of these preparations are shown in Table 1.

[0084] Table 1. Butyl / 2-butoxyethyl terephthalate and butyl / 2-(2-butoxyethoxy)ethyl terephthalate compositions

[0085]

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Abstract

The present application discloses plasticizer compositions comprising: (I) a compound of formula I: wherein R1, R2, and n are defined herein. The application also discloses resin compositions comprising the compound of formula I.

Description

Background technique [0001] Plasticizers can be divided into several classes based on their effect on the polymer formulations containing them. The top-selling plasticizers are known as general-purpose plasticizers. As the name implies, they generally represent the highest proportion of the total plasticizers used. Examples of general-purpose plasticizers include di-2-ethylhexyl phthalate, diisononyl phthalate, diisononyl 1,2-cyclohexanedicarboxylate, and di-2-terephthalate - Ethylhexyl ester. The term "co-plasticizer" can have various meanings. The term is most commonly used for additives that do not have a strong plasticizing effect but serve another useful function. For example, hydrocarbons such as mineral oil can be used to reduce the viscosity of polyvinyl chloride (PVC) plastisols, but they have little plasticizing effect as measured by the hardness or melting rate of the formulation. This material is often called an extender or diluent. Highly solvated plasticize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/12C08L27/06C08L31/04C08L33/00
CPCC08K5/12C08L27/06C08L31/04C08L33/00C08K2201/014C08K5/0016
Inventor 约瑟夫·亚历山大·德洛克哈维尔·马丁内斯·格拉耶达柯蒂斯·路易斯·席林菲利普·韦恩·特纳
Owner EASTMAN CHEM CO