KR20160079162A - High antistatic polyester film for graphic - Google Patents

High antistatic polyester film for graphic Download PDF

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Publication number
KR20160079162A
KR20160079162A KR1020140189163A KR20140189163A KR20160079162A KR 20160079162 A KR20160079162 A KR 20160079162A KR 1020140189163 A KR1020140189163 A KR 1020140189163A KR 20140189163 A KR20140189163 A KR 20140189163A KR 20160079162 A KR20160079162 A KR 20160079162A
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South Korea
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water
antistatic
weight
polyester film
agent
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KR1020140189163A
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Korean (ko)
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천세연
김용원
전용현
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주식회사 효성
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Priority to KR1020140189163A priority Critical patent/KR20160079162A/en
Publication of KR20160079162A publication Critical patent/KR20160079162A/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C08K5/34922—Melamine; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

The present invention relates to an antistatic polyester film for graphics and, more specifically, relates to an antistatic polyester film provided with a primer layer formed of a water-dispersed coating composition comprising water, a water-dispersed polyacryl-based binder resin, an antistatic agent, a melamine-based curing agent, and a catalyst. The present invention has effects in improving adhesion force with the top coating by inhibiting the surface movement of the antistatic agent, and exhibits excellent antistatic performance.

Description

그래픽용 대전방지성 폴리에스테르 필름{HIGH ANTISTATIC POLYESTER FILM FOR GRAPHIC}TECHNICAL FIELD [0001] The present invention relates to an antistatic polyester film,

본 발명은 그래픽용 대전방지성 폴리에스테르 필름에 관한 것이다.The present invention relates to an antistatic polyester film for graphic purposes.

일반적으로 폴리에스테르 필름은 우수한 기계적 특성을 가지며, 내열성, 투명성 및 내약품성 등 우수한 특성을 갖고 있기 때문에 사진용, 제도용, OHP(over head projector)용, 전기 전자 부품용, 일반산업용, 포장용 등 많은 분야에서 사용되고 있다.Generally, polyester films have excellent mechanical properties and have excellent properties such as heat resistance, transparency and chemical resistance. Therefore, polyester films are excellent in mechanical properties, such as photo, drafting, overhead projector, electric and electronic parts, Has been used in the field.

그러나, 이와 같은 폴리에스테르 필름은 표면 고유저항이 크고, 또 마찰 등으로 쉽게 대전되는 결점이 있다. 이로 인해, 폴리에스테르 필름이 대전되면 필름 표면에 불순물이나 먼지가 부착되고, 필름의 제조공정이나 가공공정에서 방전이 일어나기 때문에 이들 공정에서 유기 용제를 사용하게 되면, 인화의 위험성이 클 뿐만 아니라, 전기 전자부품 등의 재료로 사용할 경우, 정전기 파손을 일으키는 원인이 된다.However, such a polyester film is disadvantageous in that it has a large surface resistivity and is easily charged by friction or the like. Therefore, if the polyester film is charged, impurities or dust adhere to the surface of the film, and discharge occurs in the manufacturing process or the processing step of the film. Therefore, if the organic solvent is used in these steps, When used in materials such as electronic parts, it may cause static electricity damage.

따라서, 이들의 사용 시 대전방지 성능을 부여하는 것은 필수요건이 되고 있는데, 폴리에스테르 필름은 다른 고분자 물질과 마찬가지로 부도체로 전기가 통하지 않는다. 즉, 폴리에스테르 필름의 부도체적 성격은 전기절연 재료로서는 매우 바람직하지만, 필름에서 잉크 인쇄와 같은 후 공정에서 정전기 발생으로 불량율이 높아지게 만드는 요인이기도 하다.Therefore, it is an essential requirement to provide an antistatic property in the use of these materials. As with other polymer materials, the polyester film is not electrically connected to a non-conductive material. That is, the nature of the negative electrode of the polyester film is very desirable as an electrical insulating material, but it is also a factor for increasing the defect rate due to the generation of static electricity in a subsequent process such as ink printing in a film.

이를 해결하기 위한 종래 기술은, 주로 폴리에스테르 필름 위에 코팅 시 대전방지제 등 전도성 물질을 첨가하여 필름의 표면의 전기 저항값을 낮추는 방법을 사용한다.In order to solve this problem, a method of lowering the electric resistance value of the surface of a film by adding a conductive material such as an antistatic agent to a polyester film is mainly used.

그러나, 종래의 그래픽용 대전방지 폴리에스테르 필름은 계면활성제 대전방지제를 포함한 코팅층으로 인하여, 계면활성제의 표면 이동에 의한 상부 코팅과의 접착성이 저하되었다.However, in the conventional antistatic polyester film for graphic use, due to the coating layer containing the surfactant antistatic agent, adhesion to the upper coating is deteriorated due to surface movement of the surfactant.

본 발명의 목적은, 잉크 인쇄 시 탑 코팅과의 접착력 저하가 없는 대전방지 폴리에스테르 필름을 제공하는 것이다.It is an object of the present invention to provide an antistatic polyester film which is free from deterioration of adhesion with a top coating upon ink printing.

본 발명은 상술한 종래기술의 문제점을 해결하기 위해 안출된 것으로서,SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art,

물, 수분산 폴리 아크릴계 바인더 수지, 대전방지제, 멜라민계 경화제, 및 촉매를 포함하는 수분산 코팅 조성물로서 형성된 프라이머층을 구비하는 대전방지성 폴리에스테르 필름을 제공한다.There is provided an antistatic polyester film comprising a primer layer formed as a water-dispersible coating composition comprising water, a water-dispersed polyacrylic binder resin, an antistatic agent, a melamine curing agent, and a catalyst.

또한 본 발명에 있어서, 전체 수분산 코팅 조성물 중량 대비, 0.3 ~ 0.5 중량%의 멜라민계 경화제, 및 0.1 ~ 0.3 중량%의 촉매를 포함하는 것을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.The present invention also provides an antistatic polyester film characterized by containing 0.3 to 0.5% by weight of a melamine curing agent, and 0.1 to 0.3% by weight of a catalyst, based on the weight of the total water-dispersed coating composition.

또한 본 발명에 있어서, 전체 수분산 코팅 조성물 중량 대비, 70 ~ 80 중량%의 물, 10 ~ 20 중량%의 수분산 폴리아크릴계 바인더 수지, 5 ~ 10 중량의 대전방지제, 0.3 ~ 0.5 중량%의 멜라민계 경화제, 및 0.1 ~ 0.3 중량%의 촉매를 포함하는 것을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.In the present invention, the water-dispersible coating composition preferably contains 70 to 80% by weight of water, 10 to 20% by weight of water-dispersed polyacrylic binder resin, 5 to 10% by weight of antistatic agent, 0.3 to 0.5% by weight of melamine An antistatic agent, a curing agent, and 0.1 to 0.3% by weight of a catalyst.

또한 본 발명에 있어서, 상기 멜라민계 경화제는 1,3,5-Triazine-2,4,6-triamine계 중 3관능기를 갖는 것을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.In the present invention, the antistatic polyester film is characterized in that the melamine-based curing agent has three functional groups out of 1,3,5-triazine-2,4,6-triamine series.

또한 본 발명에 있어서, 상기 촉매는, 암모니움 티오시아네이트인 것을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.In the present invention, there is also provided an antistatic polyester film characterized in that the catalyst is ammonium thiocyanate.

또한 본 발명에 있어서, 상기 고분자형 대전방지제는, 우레아 공중합체형, 폴리비닐벤질형, 폴리(메타)아크릴레이트형 스티렌-(메타)아크릴레이트 공중합체형, 스티렌-말레이미드 공중합체형, 메타크릴레이트 메타크릴이미드 공중합체형과 같은 양이온성 또는 음이온성 대전방지제 중에서 선택되어지는 1종, 또는 이들의 조합인 것을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.In the present invention, the polymeric antistatic agent may be a urethane copolymer, a polyvinyl benzyl, a poly (meth) acrylate type styrene- (meth) acrylate copolymer, a styrene-maleimide copolymer, a methacrylate An antistatic agent selected from cationic or anionic antistatic agents such as acrylamide copolymer type, acrylamide copolymer type, and acrylamide copolymer type, or a combination thereof.

또한 본 발명에 있어서, 상기 고분자형 대전방지제는 1,000 ~ 500,000의 중량 평균 분자량을 가진 것임을 특징으로 하는 대전방지성 폴리에스테르 필름을 제공한다.In the present invention, there is also provided an antistatic polyester film characterized in that the polymeric antistatic agent has a weight average molecular weight of 1,000 to 500,000.

본 발명은, 우수한 대전방지성능을 나타내면서도, 대전방지제의 표면이동이 억제되어 탑 코팅과의 접착력을 향상시키는 효과가 있다.INDUSTRIAL APPLICABILITY The present invention exhibits excellent antistatic performance, but also has an effect of suppressing the surface movement of the antistatic agent and improving the adhesion with the top coat.

이하, 본 발명에 대하여 상세히 설명한다.
Hereinafter, the present invention will be described in detail.

본 발명은, 물, 수분산 폴리 아크릴계 바인더 수지, 대전방지제, 멜라민계 경화제, 및 촉매를 포함하는 수분산 코팅 조성물로서 형성된 프라이머층을 구비하는 대전방지성 폴리에스테르 필름이다.The present invention is an antistatic polyester film comprising a primer layer formed as a water-dispersible coating composition comprising water, a water-dispersed polyacrylic binder resin, an antistatic agent, a melamine curing agent, and a catalyst.

본 발명에 있어서, 프라이머층은 수분산 코팅 조성물로서 형성된다.In the present invention, the primer layer is formed as a water-dispersible coating composition.

상기 수분산 코팅 조성물은, 전체 수분산 코팅 조성물 중량 대비, 70 ~ 80 중량%의 물, 10 ~ 20 중량%의 수분산 폴리아크릴계 바인더 수지 포함하는 것이 바람직하다. 상기 범위를 벗어나, 바인더 수지의 비율이 높아지면 코팅 불균일로 인한 코팅줄이 심해져 외관이 좋지 않고, 바인더 수지의 비율이 적어지면 상부 코팅과의 접착력이 좋지 않을 수 있다.The water-dispersible coating composition preferably contains 70 to 80% by weight of water and 10 to 20% by weight of water-dispersed polyacrylic binder resin based on the total weight of the water-dispersed coating composition. If the ratio of the binder resin is out of the above range, the coating line becomes worsened due to unevenness of the coating and the appearance is poor. If the proportion of the binder resin is small, the adhesion to the upper coating may not be good.

상기 멜라민계 경화제는 1,3,5-Triazine-2,4,6-triamine계 중 3관능기를 갖는 Beckamine PM-80을 사용할 수 있다. 이로써 아크릴의 경화를 촉진시켜 코팅층의 가교도를 향상시킬 수 있다.As the melamine-based curing agent, Beckamine PM-80 having three functional groups out of 1,3,5-triazine-2,4,6-triamine series can be used. As a result, the hardening of the acrylic can be promoted and the degree of crosslinking of the coating layer can be improved.

상기 범위를 벗어나, 멜라민 경화제가 많아지면 코팅 후의 외관에 영향을 주며, 경화제량이 적어지면 가교도가 저하되어 도막내부의 대전방지제가 표면으로 상승함에 따라 탑코팅과의 접착력이 좋지않을 수 있다.If the amount of the melamine curing agent is larger than the above range, it affects the appearance after coating. If the amount of the curing agent is decreased, the degree of crosslinking is lowered, and the antistatic agent in the coating film rises to the surface, so that the adhesion to the top coating may not be good.

상기 촉매는, 멜라민 경화제의 반응성을 촉진시키는 물질로 암모니움 티오시아네이트(ammonium thiocyanate)를 사용할 수 있다.The catalyst may be ammonium thiocyanate as a substance promoting the reactivity of the melamine curing agent.

상기 촉매는, 전체 수분산 코팅 조성물 중량 대비, 0.1 ~ 0.3 중량% 포함되는 것이 바람직하다. 상기 범위를 벗어나, 촉매량이 많아지면 코팅 후 외관이 좋지 않고, 촉매량이 적어지면 멜라민 경화제의 가교가 빠르게 일어나지 않아 탑코팅과의 이접착력이 좋지않을 수 있다.The catalyst is preferably contained in an amount of 0.1 to 0.3% by weight based on the total weight of the water-dispersed coating composition. If the amount of the catalyst exceeds the above range, the appearance after coating is not good. If the amount of the catalyst is small, the crosslinking of the melamine curing agent does not occur rapidly and the adhesion to the top coating may not be good.

상기 고분자형 대전방지제는, 특별히 제한되지 않으나, 우레아 공중합체형, 폴리비닐벤질형, 폴리(메타)아크릴레이트형 스티렌-(메타)아크릴레이트 공중합체형, 스티렌-말레이미드 공중합체형, 메타크릴레이트 메타크릴이미드 공중합체형과 같은 양이온성 또는 음이온성 대전방지제 중에서 선택되어지는 1종, 또는 이들의 조합인 것을 사용할 수 있다.The polymeric antistatic agent is not particularly limited, and examples thereof include a urea copolymer type, a polyvinylbenzyl type, a poly (meth) acrylate type styrene- (meth) acrylate copolymer type, a styrene-maleimide copolymer type, A cationic or anionic antistatic agent such as an imide copolymer type, or a combination thereof.

상기 고분자형 대전방지제는, 필름 전체 중량 대비, 5 ~ 10 중량% 포함된 것이 바람직한데, 대전방지제의 함량 비율이 너무 낮으면 충분한 표면저항을 달성하기 어렵게 되고, 또 대전방지제의 함량 비율이 너무 높으면, 대전방지제가 바인더에 의해 코팅층 내부에 고정되지 못하고 표면으로 migration되어 이물을 발생시키고 탑코팅과의 접착력을 저하시켜 내구성 및 내용제성이 충분한 효과를 얻을 수 없게 된다.The polymeric antistatic agent is preferably contained in an amount of 5 to 10% by weight based on the total weight of the film. If the content of the antistatic agent is too low, it is difficult to achieve a sufficient surface resistance. If the content of the antistatic agent is too high , The antistatic agent is not fixed to the inside of the coating layer by the binder and is migrated to the surface to generate foreign matter, and the adhesion with the top coating is reduced, so that the durability and solvent resistance can not be obtained sufficiently.

상기 고분자형 대전방지제는 1,000 ~ 500,000의 중량 평균 분자량을 가진 것이 바람직한데, 상기 중량 평균 분자량이 1000 이하인 경우에는 그의 분자량이 너무 작아 피막 형성능이 떨어지고, 폴리에스테르 필름의 연신공정에서 가해지는 고온에 의해 중합체가 분해될 수 있다. 또 상기 중량평균 분자량이 500,000 이상이면, 대전방지제 공중합체의 자체 점도가 너무 높아 공중합체의 분산액, 유제 또는 용액 제조 중 점도의 과도한 상승으로 작동성과 코팅성이 불량해 진다. 따라서 바람직한 중량평균 분자량은 3000∼100,000이며, 특히 3000∼30,000인 경우가 가장 바람직하다.
The polymeric antistatic agent preferably has a weight average molecular weight of 1,000 to 500,000. When the weight average molecular weight is 1000 or less, the molecular weight of the polymeric antistatic agent is so small that the film forming ability is deteriorated. Due to the high temperature applied in the stretching process of the polyester film The polymer can be decomposed. If the weight average molecular weight is 500,000 or more, the self-viscosity of the antistatic agent copolymer is too high, resulting in an excessively high viscosity during the preparation of the copolymer dispersion, emulsion or solution. Therefore, the weight average molecular weight is preferably 3000 to 100,000, and most preferably 3000 to 30,000.

이하, 본 발명에 대하여 실시예를 들어 보다 더 상세히 설명한다. 이하의 실시예는 발명의 상세한 설명을 위한 것일 뿐, 이에 의해 권리범위를 제한하려는 의도가 아님을 분명히 해둔다.
Hereinafter, the present invention will be described in more detail by way of examples. It is to be understood that the following embodiments are for the purpose of illustration only and are not intended to limit the scope of the present invention.

실시예Example

실시예Example 1 내지 3 1 to 3

음이온성 대전방지제인 알킬 포스페이트(고형분 18%)를 아크릴계 바인더와 1,3,5-Triazine-2,4,6-triamine계 경화제(0.6, 0.8, 1.2%), ammonium thiocyanate(0.1, 0.2%)와 혼합하여 잘 교반한 후 필름위에 도포하여 185℃의 오븐에서 경화하였다. 잉크 접착력은 유성 백색잉크를 이용하여 두께 3~5㎛ 로 코팅하여 접착력을 확인하였으며, 아래 표 1과 같은 결과를 얻었다.0.8%, 1.2%), ammonium thiocyanate (0.1%, 0.2%), and an alkylphosphate (solid content 18%) as an anionic antistatic agent were mixed with an acrylic binder, 1,3,5-triazine- And the mixture was well stirred and then coated on a film and cured in an oven at 185 ° C. The ink adhesion was confirmed by coating with an oil-based white ink at a thickness of 3 to 5 占 퐉 to obtain an adhesive force as shown in Table 1 below.

Figure pat00001
Figure pat00001

Claims (7)

물, 수분산 폴리 아크릴계 바인더 수지, 대전방지제, 멜라민계 경화제, 및 촉매를 포함하는 수분산 코팅 조성물로서 형성된 프라이머층을 구비하는 대전방지성 폴리에스테르 필름.An antistatic polyester film comprising a primer layer formed as a water-dispersible coating composition comprising water, a water-dispersed polyacrylic binder resin, an antistatic agent, a melamine curing agent, and a catalyst. 청구항 1에 있어서, 전체 수분산 코팅 조성물 중량 대비, 0.3 ~ 0.5 중량%의 멜라민계 경화제, 및 0.1 ~ 0.3 중량%의 촉매를 포함하는 것을 특징으로 하는 대전방지성 폴리에스테르 필름.The antistatic polyester film according to claim 1, which comprises 0.3 to 0.5% by weight of a melamine-based curing agent, and 0.1 to 0.3% by weight of a catalyst, based on the weight of the total water-dispersed coating composition. 청구항 2에 있어서, 전체 수분산 코팅 조성물 중량 대비, 70 ~ 80 중량%의 물, 10 ~ 20 중량%의 수분산 폴리아크릴계 바인더 수지, 5 ~ 10 중량의 대전방지제, 0.3 ~ 0.5 중량%의 멜라민계 경화제, 및 0.1 ~ 0.3 중량%의 촉매를 포함하는 것을 특징으로 하는 대전방지성 폴리에스테르 필름.The water-dispersible coating composition according to claim 2, wherein the water-dispersible coating composition comprises 70 to 80% by weight of water, 10 to 20% by weight of water-dispersed polyacrylic binder resin, 5 to 10% by weight of antistatic agent, 0.3 to 0.5% An antistatic agent, a curing agent, and 0.1 to 0.3% by weight of a catalyst. 청구항 1에 있어서, 상기 멜라민계 경화제는 1,3,5-Triazine-2,4,6-triamine계 중 3관능기를 갖는 것을 특징으로 하는 대전방지성 폴리에스테르 필름.The antistatic polyester film according to claim 1, wherein the melamine-based curing agent has three functional groups out of 1,3,5-triazine-2,4,6-triamine series. 청구항 1에 있어서, 상기 촉매는, 암모니움 티오시아네이트인 것을 특징으로 하는 대전방지성 폴리에스테르 필름.An antistatic polyester film according to claim 1, wherein the catalyst is ammonium thiocyanate. 청구항 1에 있어서, 상기 고분자형 대전방지제는, 우레아 공중합체형, 폴리비닐벤질형, 폴리(메타)아크릴레이트형 스티렌-(메타)아크릴레이트 공중합체형, 스티렌-말레이미드 공중합체형, 메타크릴레이트 메타크릴이미드 공중합체형과 같은 양이온성 또는 음이온성 대전방지제 중에서 선택되어지는 1종, 또는 이들의 조합인 것을 특징으로 하는 대전방지성 폴리에스테르 필름.The polymeric antistatic composition of claim 1, wherein the polymeric antistatic agent is selected from the group consisting of a urea copolymer type, a polyvinyl benzyl type, a poly (meth) acrylate type styrene- (meth) acrylate copolymer type, a styrene-maleimide copolymer type, A cationic or anionic antistatic agent such as an imide copolymer type, or a combination thereof. 청구항 6에 있어서, 상기 고분자형 대전방지제는 1,000 ~ 500,000의 중량 평균 분자량을 가진 것임을 특징으로 하는 대전방지성 폴리에스테르 필름.The antistatic polyester film according to claim 6, wherein the polymeric antistatic agent has a weight average molecular weight of 1,000 to 500,000.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018056713A1 (en) * 2016-09-21 2018-03-29 주식회사 엘지화학 Optical film having excellent antistatic property and polarizing plate comprising same
KR20180032195A (en) * 2016-09-21 2018-03-29 주식회사 엘지화학 High antistatic optical film and polarizing plate comprising the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018056713A1 (en) * 2016-09-21 2018-03-29 주식회사 엘지화학 Optical film having excellent antistatic property and polarizing plate comprising same
KR20180032195A (en) * 2016-09-21 2018-03-29 주식회사 엘지화학 High antistatic optical film and polarizing plate comprising the same
CN109642975A (en) * 2016-09-21 2019-04-16 株式会社Lg化学 Optical film with excellent antistatic property and the polarizer including it
JP2019532323A (en) * 2016-09-21 2019-11-07 エルジー・ケム・リミテッド Optical film excellent in antistatic property and polarizing plate containing the same

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