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Polyester resin composition for calendering, and method for producing polyester film

A technology of polyester resin and composition, which is applied in the field of polyester resin composition for calendering and polyester film preparation, can solve the problems of environmental protection, poor calendering processability, and difficult recycling, etc., and achieve low cost, excellent Effect of heat resistance and surface strength

Pending Publication Date: 2020-10-09
爱思开迈克沃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polyvinyl chloride (PVC) resin, which is usually used in the calendering process in the past, has excellent processing properties, but it is not easy to recycle after treatment, and it is not environmentally friendly
In addition, although polypropylene (PP) resins are excellent in calendering processability, they are not environmentally friendly and have problems in printing and lamination without corona and primer treatment
[0004] Meanwhile, as a representative polyester resin, polyethylene terephthalate (PET) resin is high in quality and low in price, but its calenderability is poor.

Method used

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  • Polyester resin composition for calendering, and method for producing polyester film

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Embodiment 1 to 7 and comparative example 1 to 5

[0139] For the preparation of the polyester resin, a 2500 liter reactor equipped with a stirrer and outlet condenser was charged with the diol component and the dicarboxylic acid component so that the amount of final polymer was 2000 kg. Afterwards, the pressure in the reactor was raised to 2.0 kg / cm with nitrogen 2 , and the temperature of the reactor was raised to 265° C. for the reaction. In this case, the produced water is drained from the system to carry out the esterification reaction, and the reaction product is transferred to a polycondensation reactor equipped with a stirrer, a cooling condenser and a vacuum system.

[0140] 300 ppm of antimony triethylene glycol as a metal polycondensation catalyst was added to the obtained esterification reaction product, and 500 ppm of triethyl phosphate (TEP) as a stabilizer was added as an element of phosphorus. Thereafter, the temperature and pressure inside the reactor were increased to 285 to 290° C. and 50 mmHg, respectively...

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Abstract

A polyester resin composition for calendering according to an embodiment comprises a lubricant having adjusted thermal properties, and thus can have enhanced calender processability and inhibit the degradation of physical properties of a final film due to residual components. Also, a polyester film produced using the polyester resin composition for calendering is eco-friendly and has excellent heat resistance and surface strength, and thus can be used for various eco-friendly materials such as decoration sheets.

Description

technical field [0001] The following embodiments relate to a polyester resin composition applied to a calendering process and a method of preparing a polyester film therefrom. More specifically, the embodiments relate to a polyester resin composition mixed with additives to improve calendering processability, and a method of preparing a polyester film therefrom used as an eco-friendly material. Background technique [0002] The calendering process is a process of forming a film, sheet, etc. using a calender, that is, a rolling mill equipped with a plurality of heating rolls. The calendering process is mainly used to prepare films, sheets, etc., because the calendering process has a faster production speed and can be processed into a thinner thickness more conveniently than the die-casting process. [0003] Polyvinyl chloride (PVC) resin, which is usually used in calendering process in the past, has excellent processability, but it is not easy to recycle after treatment, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08J5/18
CPCC08J5/18C08G63/16C08K5/0008C08J2367/02C08G63/183C08L67/02
Inventor 卢一镐吴美玉李得永崔常勋
Owner 爱思开迈克沃有限公司