KR19990004548A - Antifog coating composition - Google Patents

Antifog coating composition Download PDF

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KR19990004548A
KR19990004548A KR1019970028674A KR19970028674A KR19990004548A KR 19990004548 A KR19990004548 A KR 19990004548A KR 1019970028674 A KR1019970028674 A KR 1019970028674A KR 19970028674 A KR19970028674 A KR 19970028674A KR 19990004548 A KR19990004548 A KR 19990004548A
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compounds
coating composition
compound
weight
coating
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김용기
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김용기
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Abstract

본 발명은 메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 중에서 선택된 열경화형중합체와, 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종이상의 가교제를 함유함을 특징으로 하는 김서림방지용 피복조성물에 관한 것이다. 본 발명의 피복조성물은 김서림방지효과가 우수할 뿐만 아니라 용도에 따라 투명성, 내후성, 내약품성, 내열성 및 정전기방지성도 우수하다.The present invention provides dimethylaminoethyl-methyl chloride salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compounds, N-methylol acrylamide, acrylonitrile and N-methoxymethylation. Thermosetting polymer selected from nylon, and oxazoline compound, isocyanate compound, organotitanate compound, organosilane compound, 1,4-bis (chloromethyl) benzene and melamine compound selected from the group consisting of An antifogging coating composition. The coating composition of the present invention not only has an excellent antifogging effect, but also excellent transparency, weather resistance, chemical resistance, heat resistance, and antistatic property, depending on the use.

Description

김서림방지용 피복조성물Antifog coating composition

본 발명은 김서림방지용 피복조성물 및 그의 제조방법에 관한 것이다. 더욱 구체적으로, 본 발명은 유리나 수지재료에 피복가능한 열경화형 중합체에 3종 이상의 가교제를 적절히 혼합시킴으로써 김서림 방지효과가 지속적으로 유지시킬 수 있을 뿐만 아니라 투명성, 내후성, 내약품성, 내열성 및 정전기 방지성도 우수한 피복조성물 및 그의 제조방법에 관한 것이다.The present invention relates to an antifogging coating composition and a method of manufacturing the same. More specifically, the present invention can not only continuously maintain the anti-fog effect by properly mixing three or more crosslinking agents with a thermosetting polymer that can be coated on glass or resin materials, but also has excellent transparency, weather resistance, chemical resistance, heat resistance and antistatic properties. The present invention relates to a coating composition and a manufacturing method thereof.

일반적으로 김서림현상은 내부기온과 외부기온의 온도차에 의해서 발생한다. 안경을 착용하는 사람들이 흔히 경함할 수 있듯이 추운 겨울 프레트홈에서 난방이된 차내에 들어가면 갑자기 안경에 김이 서려 순간적으로 아무것도 보이지 않아 불편함을 경험하게 된다. 이것은 공기중의 습한 미세입자가 급격한 온도변화로 응고하여 렌즈표면에 부착되기 때문에 발생한다. 여기서 미세입자는 상당히 작은 단위로서(Å)라고 하는 1/10,000,000CM에 해당한다.In general, the steaming phenomenon is caused by the temperature difference between the internal temperature and the external temperature. As people who wear glasses often suffer, when they enter a heated car in a cold winter premise, they suddenly steam up and experience discomfort. This occurs because the wet fine particles in the air solidify due to a sudden temperature change and adhere to the lens surface. Herein, the fine particles correspond to 1 / 10,000,000CM, which is called as a relatively small unit.

한편 서리는 수포가 부착되어서 생기는 현상으로 김서림과 같은 현상으로 보여지지만 부착된 수포의 크기는 육안으로 볼 수 있을 정도의 김의 미세입자와는 분명한 차이가 있다. 그것은 접착면 즉 부착되어 있는 면과의 접촉각도, 전기부하, 마찰저항등 물리적인 수치도 당연히 달라지게 된다.On the other hand, frost is a phenomenon caused by the attachment of blisters, which is seen as a phenomenon such as Kim Seorim, but the size of the attached blisters is clearly different from the fine particles of seaweed that can be seen with the naked eye. The physical values such as the contact angle, the electrical load, and the frictional resistance with the bonded surface, ie, the attached surface, are naturally different.

김서림 방지대책으로서 예를 들면 단순히 접촉면의 마찰계수를 0에 가깝게 하여 소위 소수화현상(疎水化現象)에 물리적으로 서리를 방지하는 방법이 제안되었다. 그러나 이런 물리적 방법은 (Å)단위의 미세입자에는 효과적이지 못한 것으로 나타났다.As a countermeasure against fog, for example, a method of physically preventing frost from a so-called hydrophobic phenomenon has been proposed by simply bringing a friction coefficient of a contact surface close to zero. However, this physical method was found to be ineffective for microparticles of (Å) units.

종래에는 피복제를 유리나 수지재료의 표면에 뿌려서 김서림을 방지하려는 방법이 주로 시도되었으나, 이것은 일시적인 효과만 기대할 수 있고, 김서림이 생길때마가 피복제를 발라주어야 하는 불편함이 있고 또한 기후의 변화, 여러가지 약품에도 내구성이 약한 것으로 나타났다.Conventionally, a method of preventing misting by spraying a coating on the surface of a glass or resin material has been mainly attempted, but this can be expected only for a temporary effect, and there is an inconvenience of applying a coating when steaming occurs. Many drugs have been shown to be less durable.

일본특허공개 평6-41517호 공보는 아크리계아미드계수지, 유기실란계화합물 및 멜라닌화합물을 촉매의 존재하에 반응시켜 제조한 방담성(防曇性) 피복제를 개시하고 있다. 그러나 이러한 피복제는 가교제로서 유기실란화합물만 단독으로 사용하고 있어서 유기실란화합물의 사용량이 증가하여도 방담성이나 투명성등이 충분히 발휘되지 못한다. 더욱이 상기 일본특허와 같이 가교제를 1종류밖에 사용하지 않는 경우에는 유리나 수지재료에 필요한 여라가지 기능들, 예를들어 김서림방지효과, 투명성, 내후성, 내약품성, 내열성, 정전기방지성등이 충분히 발휘될 수 없다.Japanese Patent Laid-Open No. 6-41517 discloses an antifogging coating prepared by reacting an acri amide resin, an organosilane compound and a melanin compound in the presence of a catalyst. However, such a coating agent is used alone as an organosilane compound as a crosslinking agent, so even if the amount of the organosilane compound is increased, antifogging property and transparency cannot be sufficiently exhibited. Furthermore, when only one type of crosslinking agent is used as in the Japanese patent, various functions necessary for glass or resin materials, for example, anti-fog effect, transparency, weather resistance, chemical resistance, heat resistance, antistatic property, etc., are sufficiently exhibited. Can not.

따라서 본 발명자는 김서림방지효과 외에도 용도에 따라 투명성, 내후성, 내약품성, 내열성 및 정전기방지성이 우수한 피복제를 개발하려고 수많은 연구와 실험을 거듭한 결과, 3차원구조를 갖는 열경화형 중합체와 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물 중에서 선택된 3종 이상의 가교제를 결합시켜 제조한 피복조성물을 유리나 수지재료에 적용하면 김서림방지 효과를 지속적으로 발휘시킬 수 있을 뿐만 아니라 상술한 여러기능들도 달성할 수 있음을 밝혀내고 본 발명을 완성하게 되었다.Therefore, the present inventors have conducted numerous studies and experiments to develop a coating material having excellent transparency, weather resistance, chemical resistance, heat resistance, and antistatic property in addition to the anti-fog effect. As a result, a thermosetting polymer having three-dimensional structure and oxazoline Antifogging effect is applied to glass or resin materials by applying coating composition prepared by combining three or more crosslinking agents selected from compound, isocyanate compound, organotitanate compound, organosilane compound, 1,4-bis (chloromethyl) benzene and melamine compound In addition to being able to continuously demonstrate the various functions described above to achieve the present invention has been completed.

본 발명은 메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 중에서 선택된 열경화형중합체와, 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종이상의 가교제를 함유함을 특징으로 하는 김서림방지용 피복조성물에 관한 것이다.The present invention provides dimethylaminoethyl-methyl chloride salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compounds, N-methylol acrylamide, acrylonitrile and N-methoxymethylation. Thermosetting polymer selected from nylon, and oxazoline compound, isocyanate compound, organotitanate compound, organosilane compound, 1,4-bis (chloromethyl) benzene and melamine compound selected from the group consisting of An antifogging coating composition.

본 발명은 또한 메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 중에서 선택된 열경화형중합체를 유기용매중에서 혼합하고 수득된 혼합물을 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종이상의 가교제와 혼합시킴을 특징으로 하는 김서림방지용 피복조성물에 관한 것이다.The present invention also relates to dimethylaminoethyl-methyl chloride salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compounds, N-methylol acrylamide, acrylonitrile and N-methoxy The thermosetting polymer selected from methylated nylon was mixed in an organic solvent, and the obtained mixture was selected from oxazoline compounds, isocyanate compounds, organic titanate compounds, organosilane compounds, 1,4-bis (chloromethyl) benzene and melamine compounds. An antifogging coating composition characterized by mixing with a crosslinking agent of a phase.

이하, 본 발명의 김서림방지용 피복조성물 및 그의 제조방법을 구체적으로 설명한다.Hereinafter, the antifogging coating composition of the present invention and a manufacturing method thereof will be described in detail.

본 발명에서 열경화형 중합체로는 메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 등을 혼합 사용한다.Thermosetting polymers in the present invention include dimethylaminoethyl methacrylate salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compounds, N-methylol acrylamide, acrylonitrile and N-methoxymethylated nylon and the like are mixed and used.

본 발명에서 가교제는 적어도 3종이상을 혼합사용하는 것이 중요하다. 구체적으로 피복재료의 용도에 따라 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종 이상을 적절히 선택 사용한다.In the present invention, it is important to mix and use at least three or more crosslinking agents. Specifically, at least three selected from an oxazoline compound, an isocyanate compound, an organotitanate compound, an organosilane compound, 1,4-bis (chloromethyl) benzene and a melamine compound are appropriately selected and used according to the use of the coating material.

가교제에서 사용되는 이소시아네이트화합물의 구체예로는 디페닐메타이소시아네이트, 2,4-토릴렌디이소시아네이트, 크실렌디이소시아네이트, 트리메틸헥사메틸렌이소시아네이트, 블록이소시아네이트 및 폴리이소시아네이트를 들 수 있다. 예를들어 가교제로서 이소시아네이트화합물만 단독으로 사용하는 경우에는 적당한 경도를 갖는 피복물을 얻을 수 있으나, 충분한 내열성은 기대할 수 없으며 프레스성형에 소요되는 온도 170℃/10분 정도만 가하여도 황변화할 수 있다.Specific examples of the isocyanate compound used in the crosslinking agent include diphenylmeta isocyanate, 2,4-torylene diisocyanate, xylene diisocyanate, trimethylhexamethylene isocyanate, block isocyanate and polyisocyanate. For example, when only an isocyanate compound is used alone as a crosslinking agent, a coating having an appropriate hardness can be obtained. However, sufficient heat resistance can not be expected, and sulfur can be changed even if only about 170 ° C / 10 minutes is required for press molding.

상기 가교제중에서 옥사졸린화합물은 카르복실기의 저온에 있어서의 가교, 즉 에어졸화등에 작용하는 특성을 가지고 있으며 이소시아네이트화합물은 밀착성유지, 적당한 경도와 가요성을 갖는 특성이 있고 또한 유기티타네이트화합물은 경도 및 흡수성을 향상시키는데 뛰어난 특성을 갖고 있다.Among the crosslinking agents, the oxazoline compound has a characteristic of acting on the crosslinking, ie, aerosolization, of the carboxyl group at low temperature, and the isocyanate compound has the property of maintaining adhesion, moderate hardness and flexibility, and the organic titanate compound has hardness and absorbency. It has excellent properties to improve it.

따라서 본 발명의 피복조성물은 3종 이상의 가교제를 적절히 선택 첨가함으로써 김서림방지효과외에도 용도에 따라 소망하는 다양한 기능을 발휘할 수 있다.Therefore, the coating composition of the present invention can exhibit various desired functions depending on the use in addition to the antifogging effect by appropriately adding three or more kinds of crosslinking agents.

본 발명의 피복조성물에서 가교제의 첨가량은 특별히 한정되는 것은 아니지만, 상기 열경화형 중합체의 고형분에 대해 1.0 내지 30 중량%로 한다. 또한 첨가조건도 특별히 한정할 필요는 없는 것이지만, 상기 중합체를 용해하는 유기용매중에서 그리고 상기 가교제를 용해하는 유기용매를 선택사용한다. 상기 유기용매로는 톨루엔, 메틸에틸케톤, 메탄올, 메틸셀로솔브, 아세트산메틸 및 테트라하이드로푸란중에서 1종 또는 2종이상을 혼합 사용한다. 또한 반응조건은 중합체 및 가교제의 혼합조성에 따라 다소 차이가 있지만, 실험적 경위를 참작하여 적절하게 설정한다.Although the addition amount of a crosslinking agent in the coating composition of this invention is not specifically limited, It is 1.0-30 weight% with respect to solid content of the said thermosetting polymer. The addition conditions need not be particularly limited, but an organic solvent in which the polymer is dissolved and an organic solvent in which the crosslinking agent is dissolved are selected and used. As said organic solvent, 1 type, or 2 or more types are mixed and used among toluene, methyl ethyl ketone, methanol, methyl cellosolve, methyl acetate, and tetrahydrofuran. The reaction conditions are somewhat different depending on the mixing composition of the polymer and the crosslinking agent, but are appropriately set in consideration of the experimental situation.

본 발명에 따른 피복제조성물은 필요에 따라 폴리비닐피롤리돈과 메타크릴산메틸이나 유기실란, 비닐알코올등을 소량 첨가할 수 있다. 그 외에 염료, 안료, 포토크로미즘제, 안트라퀴논계화합물, 폴리메틸렌계화합물, 시아닌계화합물, 아미늄계화합물, 디이모늄계화합물, 무기화합물 등을 혼합 사용할 수 있다.In the coating composition according to the present invention, polyvinylpyrrolidone, methyl methacrylate, organosilane, vinyl alcohol and the like can be added in small amounts as necessary. In addition, dyes, pigments, photochromism agents, anthraquinone compounds, polymethylene compounds, cyanine compounds, aluminum compounds, dimonium compounds, inorganic compounds and the like can be mixed.

이와 같이 하여 제조된 피복제조성물은 폴리에테르수지, 폴리비닐클로라이드(PVC)수지, 아크릴수지, 폴리카보네이트수지, 유리나 금속재료의 표면에 예를들어 바코트(bar coat), 핸드코트 (hand coat), 스프레이코트(spray coat), 에어졸코트(aerosol coat)하여도 좋다.The coating composition thus prepared may be made of polyether resin, polyvinyl chloride (PVC) resin, acrylic resin, polycarbonate resin, for example, bar coat or hand coat on the surface of glass or metal materials. Or spray coat or aerosol coat may be used.

예를들어 폴리카보네이트수지를 피복하는 경우에는 주액과 복합액을 1:1로 혼합하여 수지표면에 스프레이식으로 발라 5분간 자연건조한 후 100℃에서 45분간 고온건조하여 처리한다. 또한 유리를 피복하는 경우에는 주액과 복합액을 1:1로 혼합하여 유리표면에 두께 0.3mm로 드럽코팅하고 5분간 자연건조한 후 140℃에서 50분간 고온열처리한다. 피복할 재료는 사용조건에 따라 피복방법, 열경화온도, 시간 또는 재료의 사용량을 선정한다.For example, in the case of coating polycarbonate resin, the main liquid and the composite liquid are mixed 1: 1, sprayed on the resin surface, spontaneously dried for 5 minutes, and then dried at 100 ° C. for 45 minutes at high temperature. In addition, in the case of coating the glass, the main liquid and the composite liquid are mixed 1: 1 and drop-coated to the glass surface with a thickness of 0.3mm, and naturally dried for 5 minutes, followed by high temperature heat treatment at 140 ° C. for 50 minutes. For the material to be coated, select the coating method, thermosetting temperature, time or amount of material used according to the use conditions.

또한 피복제는 희석하지 않고 그대로 사용해도 무방하고 적당하게 희석하여 도포하여도 좋다. 즉 피복제의 사용방법은 특별히 제한되는 것은 아니며 각종 도포기계의 조건에 따라 적절히 변화시켜 적용할 수 있다. 도포물 표면에 도포된 피복물은 종래 공지된 여러가지 방법, 예를들어 열이나 자외선에 의한 건조 혹은 자연건조에 의해 경회시킴으로써 용이하게 도막을 형성할 수 있다. 이 경우 경화방법 및 경화조건은 특별히 제한할 필요는 없다.Moreover, a coating agent may be used as it is without dilution, and may be diluted and applied suitably. That is, the method of using the coating agent is not particularly limited and may be appropriately changed according to the conditions of various coating machines. The coating applied to the surface of the coating can be easily formed by coating by conventionally known methods, for example, drying by heat or ultraviolet rays or natural drying. In this case, the curing method and the curing conditions need not be particularly limited.

본 발명의 방법에 따라 제조된 피복제조성물은 다음과 같은 잇점을 제공한다.The coating composition prepared according to the method of the present invention provides the following advantages.

첫째, 김서림방지효과가 우수하고 지속성이 있다.First, the anti-fog effect is excellent and durable.

둘째, 투명서, 투명도가 상당히 높다.Second, transparency and transparency are quite high.

셋째, 내후성이 좋아 실내외의 어떠한 온도차이에도 변화가 없다.Third, the weather resistance is good, there is no change in any temperature difference indoors and out.

넷째, 내약품성이 우수하여 아세톤, 알콜 등 화학약품에 강하다.Fourth, it has excellent chemical resistance and is strong against chemicals such as acetone and alcohol.

다섯째, 내열성이 이썽서 150℃ 이상의 고온에서도 용해되지 않는다.Fifth, it does not dissolve even at high temperatures of 150 ° C. or higher because of its high heat resistance.

여섯째, 정전기 방지성이 있어서 먼지등으 잘 붙지 않는다.Sixth, because of the antistatic properties, it does not stick well to dust.

따라서 본 발명에 따른 피복제조성물은 수지재료, 예를 들어 방한마스크, 방연마스크, 안경, 수영용 안경, 오토바이용 안경, 스키용 안경등이나 유리재료, 예를들어 안경, 일반건축유리, 진열유리, 거울, 냉동유리 등에 매우 유용하게 사용될 수 있다.Therefore, the coating composition according to the present invention is a resin material, for example, cold mask, flame retardant mask, glasses, swimming glasses, motorcycle glasses, ski glasses and the like or glass materials, for example glasses, general architectural glass, display glass It can be very useful for mirrors, frozen glass, etc.

이하 본 발명을 실시예에 의거하여 구첵적으로 설명하지만 본발명의 기술적 범위가 이들 실시예로 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail based on examples, but the technical scope of the present invention is not limited to these examples.

(실시 예1)Example 1

메타크릴산 디메틸아미노에틸-메틸클로라이드염 80 중량% 및 2-하이드록시에틸메타크릴레이트 20 중량%의 비율로 혼합하여 제 1 혼합액을 조제하고 폴리옥시에틸렌모노메타크릴레이트 50 중량%, 아크릴니트릴 30 중량% 및 메타크릴아미드 20 중량%의 비율로 혼합하여 제2혼합액을 조제하였다. 이어서 상기 제1 혼합액 70 중량%와 상기 제 2 혼합액 30 중량%를 혼합하여 혼합액[A]를 조제하고 용매로서 메틸에틸케톤 50 중량%와 메탄올 50 중량%의 비율로 혼합하여 혼합용매[a]를 조제하였다.80% by weight of dimethylaminoethyl-methyl chloride salt and 20% by weight of 2-hydroxyethyl methacrylate were mixed to prepare a first mixture, 50% by weight of polyoxyethylene monomethacrylate, and acrylonitrile 30 A second mixture was prepared by mixing in a proportion of 20% by weight and methacrylamide. Subsequently, 70% by weight of the first mixed solution and 30% by weight of the second mixed solution were mixed to prepare a mixed solution [A]. A mixed solvent [a] was mixed by mixing 50% by weight of methyl ethyl ketone and 50% by weight of methanol as a solvent. It prepared.

다음에 반응용기속에 혼합액[A] 50 중량%와 혼합용액[a] 50 중량%의 비율로 투입하고 반응개시제로서 아조비스이소브틸로니트릴을 총중량에 대해 3 중량% 첨가한 다음 용기내를 질소가스로 치환하고 용기내 온도를 80℃로 유지하여 1시간 반응시키고 다시 아조비스이소브틸로니트릴 1 중량%를 첨가하여 2시간 계속 반응시킨 후 용기내 온도를 30℃로 내려 30분후 반응을 하였다. 반응종료 후 얻어진 중합체의 농도가 40%가 되도록 메탄올로 희석하였다.Next, 50% by weight of the mixed solution [A] and 50% by weight of the mixed solution [a] were added to the reaction vessel, and 3% by weight of azobisisobutyronitrile was added to the total weight as a reaction initiator. The reaction was continued for 1 hour while maintaining the temperature in the vessel at 80 ° C., and 1% by weight of azobisisobutyronitrile was added for the reaction. The reaction was continued for 2 hours. The reaction temperature was lowered to 30 ° C. for 30 minutes. After completion of the reaction, the obtained polymer was diluted with methanol so that the concentration of the polymer was 40%.

한편 톨루엔 30 중량%, 메틸에틸케톤 30 중량%, 메탄올 30 중량% 및 테트라하이드로푸란 10 중량%의 비율로 혼합하여 혼합용매[b]를 조제하였다. 이어서 상기 중합체 고형분에 대하여 2.0 중량%의 이소시아네이트화합물(상품명: 스미듈 44V-10/수미또모 우레탄주식회사), 2.0 중량%의 유기티탄네이트화합물(테트라N-부톡시티탄 : 일본소다주식회사), 3.0 중량%의 옥사졸린화합물(2-이소프로페닐-2-옥사졸린 : 일본촉매주식회사)를 혼합용매[b]속에 용해한 후 상기 중합체와 교반 혼합하여 피복제를 얻는다. 얻어진 피복제를 20 중량%로 희석하고 80mm×120mm 크기의 폴리에스테르필름상에 소정의 바코터(bar coater)를 사용하여 도포하고 120℃의 온도로 설정한 건조기내에서 60분간 건조 경화시켜 도포막을 형성시킨다. 도포막의 두께는 간섭막두께측정기로 측정하였던 바 6㎛이였다.Meanwhile, a mixed solvent [b] was prepared by mixing at a ratio of 30% by weight of toluene, 30% by weight of methyl ethyl ketone, 30% by weight of methanol, and 10% by weight of tetrahydrofuran. Subsequently, 2.0% by weight of isocyanate compound (trade name: Sumidole 44V-10 / Sumitomo Urethane Co., Ltd.), 2.0% by weight of organic titanate compound (tetra N-butoxy titanium: Soda Co., Ltd.), 3.0% by weight based on the polymer solids. % Oxazoline compound (2-isopropenyl-2-oxazoline: Japan Catalyst Co., Ltd.) is dissolved in a mixed solvent [b] and then stirred and mixed with the polymer to obtain a coating agent. The obtained coating agent was diluted to 20% by weight, applied onto a polyester film of 80mm × 120mm size using a predetermined bar coater, and dried and cured for 60 minutes in a dryer set at a temperature of 120 ° C. to coat the coating film. To form. The thickness of the coating film was 6 µm as measured by the interference film thickness meter.

(실시 예 2)(Example 2)

실시예 1에서 얻어진 피복제에 대하여 실시예 1과 같은 방법으로 경화시켜 두께 12mm의 도포막을 형성시켰다.The coating material obtained in Example 1 was cured in the same manner as in Example 1 to form a coating film having a thickness of 12 mm.

(비교예 1)(Comparative Example 1)

실시예 1에서 얻어진 중합체의 고형분에 대하여 가교제로서 3.5 중량%의 이소시아네이트화합물(상품명 : 스미듈 44V-10/스미또모 우레탄주식회사)만 단독으로 사용하는 것을 제외하고는 실시예 1과 같은 반응조작을 행하여 피복제를 얻었다. 얻어진 피복제에 대하여 실시예 1과 같은 방법으로 경화시켜 두께 6㎛의 도포막을 형성시켰다.Except for using only 3.5% by weight of isocyanate compound (trade name: Sumidole 44V-10 / Sumitomo Urethane Co., Ltd.) as a crosslinking agent to the solids of the polymer obtained in Example 1, A coating agent was obtained. The obtained coating agent was cured in the same manner as in Example 1 to form a coating film having a thickness of 6 μm.

(비교예 2)(Comparative Example 2)

실시예 1에서 얻어진 중합체의 고형분에 대하여 가교제로서 2.5 중량%의 이소시아네이트화합물(상품명 : 스미듈 44V-10/스미또모 우레탄주식회사) 및 10 중량%의 테트라 N-부톡시티탄을 사용하는 것을 제외하고는 실시예 1과 같은 반응조작을 행하여 피복제를 얻었다. 얻어진 피복제에 대하여 실시예 1과 같은 방법으로 경화시켜 두께 6㎛의 도포막을 형성시켰다.Except for using 2.5% by weight of isocyanate compounds (trade name: Sumidole 44V-10 / Sumitomo Urethane Co., Ltd.) and 10% by weight of tetra N-butoxytitanium as crosslinking agents based on the solids of the polymer obtained in Example 1 The reaction operation was performed as in Example 1 to obtain a coating agent. The obtained coating agent was cured in the same manner as in Example 1 to form a coating film having a thickness of 6 μm.

(비교예 3)(Comparative Example 3)

실시예 1에서 얻어진 중합체의 고형분에 대하여 가교제로서 3 중량%의 1,4-비스(클로로메틸)벤젠 및 용액의 전중량에 대하여 중량%의 γ-아미노프로필트리메톡시실란의 2종류만 사용하는 것을 제외하고는 실시예 1과 같은 반응조작을 행하여 피복제를 얻었다. 얻어진 피복제에 대하여 실시예 1과 같은 방법으로 경화시켜 두께 6㎛의 도포막을 형성시켰다.Only 2 types of 3 wt% of 1,4-bis (chloromethyl) benzene and 3% by weight of gamma -aminopropyltrimethoxysilane relative to the total weight of the solution were used as the crosslinking agent with respect to the solid content of the polymer obtained in Example 1. A coating agent was obtained in the same manner as in Example 1 except that the coating agent was obtained. The obtained coating agent was cured in the same manner as in Example 1 to form a coating film having a thickness of 6 μm.

(시험예)(Test example)

상기와 같이 제조된 실시예 1-2 및 비교예 1-3의 도포막에 대하여 외관, 점도, 경도, 밀도, 내수성, 팽윤성, 내열성, 투과성, 방담성, 흡수성 및 변색성을 다음과 같은 시험방법으로 측정하였다.Test method of the appearance film, viscosity, hardness, density, water resistance, swelling, heat resistance, permeability, anti-fogging property, water absorption and discoloration of the coating film of Example 1-2 and Comparative Example 1-3 prepared as described above Measured by.

(1)외관(1) Appearance

도포피막의 투명성, 평활성, 굴곡성의 유무에 따라 목시 5단계방식을 채용하였다.Visual five-step method was adopted according to the transparency, smoothness and flexibility of the coated film.

(2)점도(2) viscosity

피복제를 소정온도로 조정하여 B형 점도계를 사용하여 측정하였다.The coating material was adjusted to a predetermined temperature and measured using a type B viscometer.

(3)경도(3) hardness

연필광도긁기시험(JIS K 5400)을 채용하였다.Pencil light scratching test (JIS K 5400) was adopted.

(4)밀도(4) density

바둑판무늬시험, 폴리에스테르필름상에 피복제를 건조도포시키고 10mm사방의 범위내에서 1mm간격의 눈끔을 넣어 100개의 소편(모눈)으로 분할하고 셀로판테이프를 두껍게 부착한 후에 상기 셀로판테이프를 힘차게 폴리에스테르필름에서 박리하여 폴리에스테르필름으로부터의 박리소편을 센다.Checkerboard test, Dry coating of coating material on polyester film, insert into 1mm gap within 10mm square, divide into 100 pieces (grid), attach cellophane tape thickly, and then apply cellophane tape strongly Peeling from a film counts peeling piece from a polyester film.

(5) 내수성(5) water resistance

도포막을 폴리에스테르필름마다 24시간 수도물에 침지한 후 초기의 상태와 비교한 경우의 표면변화의 유무, 손가락에 의한 접촉에서의 박리의 유무, 목시에 의해 5단계평가를 하였다.After the coating film was immersed in tap water for 24 hours for each polyester film, the five-step evaluation was carried out by the presence or absence of surface change, the presence or absence of peeling in contact with the finger when compared with the initial state.

(6) 팽윤성(6) swellability

밀폐수면차 5cm의 조건하에서 70℃의 열수증기를 30분내 뿜은 후의 팽윤유무를 평가한다.Swelling after evaluating hot water vapor at 70 ° C. within 30 minutes under a condition of 5 cm of closed water level difference is evaluated.

(7) 내열성(7) heat resistance

150℃의 열풍건조를 96시간 행하였다.Hot air drying at 150 ° C. was performed for 96 hours.

(8) 투과성(8) permeability

광선투과율은 적분구식측정장치를 사용하여 측정하였다.Light transmittance was measured using an integrated sphere measuring device.

(9) 방담성(9) antifogging

도포막을 -20℃의 냉동케이스중에 30분 방치한 후 시온(22℃)에 꺼냈을 때의 흐림의 발생정도를 평가하였다. 즉 꺼낸 직후의 흐림발생유무, 또 흐림발생한 경우 소실까지의 시간.The degree of occurrence of cloudiness was evaluated when the coating film was left for 30 minutes in a freezing case at -20 ° C and then taken out at Zion (22 ° C). That is, whether there is a blur immediately after taking it out, and when it is cloudy, the time until the disappearance.

(10) 흡수성(10) absorbency

도포막상에 수성컬러잉크를 떨어뜨렸을 때의 흡착정도, 유출 또는 부유의 유무를 목시 5단계 평가하였다.The visual evaluation of the degree of adsorption, spillage, or floating when the aqueous color ink was dropped on the coating film was visually evaluated in five steps.

(11) 변색성(11) discoloration

도포막을 180℃로 가열하였을 때 6분으로 변색한 것을 기준으로 8분으로 변색한 것은 약간 양호로 하고 10분 이상을 양호로 하였다. 한편, 4분으로 변색한 것은 약간 불량, 2분으로 변색한 것은 불량으로 하였다.When the coating film was heated to 180 ° C., the color change in 8 minutes was slightly satisfactory, and the change in color was changed to 6 minutes. On the other hand, the color change in 4 minutes was slightly bad, and the color change in 2 minutes was bad.

상기 시험결과는 하기 표1에 나타내었다.The test results are shown in Table 1 below.

[표 1] TABLE 1

(실시예 3)(Example 3)

메타크릴산 디메틸아미노에틸-메틸클로라이드염 50 중량%, 2-하이드록시에틸메타크릴레이트 20 중량% 및 아크릴니트릴 30 중량%의 비율로 혼합하여 제 1혼합액을 조제하고 아크리릭애시드 70중량%, 폴리옥시에틸렌모노메타크릴레이트 20중량% 및 N-아크릴아미드 10 중량%의 비율로 혼합하여 제 2 혼합액을 조제하였다. 상기 제 1 혼합액 50 중량%와 상기 제 2 혼합액 50 중량%의 비율로 혼합하여 혼합액[A]을 조제하였다. 또한 시아닌계화합물 10 중량%와 산화금속미분말 10 중량%를 교반혼합하여 제 3 혼합액으로 하였다.50% by weight of dimethylaminoethyl-methyl chloride salt, 20% by weight of 2-hydroxyethyl methacrylate and 30% by weight of acrylonitrile were prepared to prepare a first mixture, 70% by weight of acryric acid, and poly A second mixed solution was prepared by mixing at a ratio of 20% by weight of oxyethylene monomethacrylate and 10% by weight of N-acrylamide. 50% by weight of the first mixture and 50% by weight of the second mixture were mixed to prepare a mixture [A]. In addition, 10% by weight of the cyanine compound and 10% by weight of fine metal oxide powder were stirred and mixed to obtain a third liquid mixture.

실시예 1에서 사용한 혼합용매[a] 180 중량%를 실시예 1과 동일한 중합반응조작을 수행하여 희석액을 얻었다. 다음에 옥사졸린화합물(2-이소프로필페닐-2-옥사졸린 : 일본촉매주식회사)의 첨가량을 중합체의 고형분에 대하여 2 중량%에서 3 중량%로 변경한 것을 제외하고는 실시예 1과 동일한 가교반응을 수행하였다.180 wt% of the mixed solvent [a] used in Example 1 was subjected to the same polymerization reaction as in Example 1 to obtain a diluent. The same crosslinking reaction as in Example 1 was followed except that the amount of the oxazoline compound (2-isopropylphenyl-2-oxazoline: Japan Catalyst Co., Ltd.) was changed from 2% to 3% by weight based on the solids of the polymer. Was performed.

얻어진 피복제를 실시예 1과 같은 방법으로 경화시켜 두께 6㎛의 도포막을 형성시켰다. 이 도포막에 대하여 물성시험을 행한 결과 방담기능가 적외선차단효과가 우수한 것으로 나타났다.The obtained coating agent was hardened by the method similar to Example 1, and the coating film of thickness 6micrometer was formed. The physical property test of this coating film showed that the antifogging function was excellent in infrared ray blocking effect.

(실시예 4)(Example 4)

폴리옥시에틸렌메타크릴레이트 60 중량% 및 2-하이드록시에틸메크릴레이트 40 중량%의 비율로 혼합하여 제 1 혼합액을 조제하고 메타크릴산메틸 60 중량%, N-메틸올아크릴아미드 20 중량% 및 메타크릭애시드 20 중량%의 비율로 혼합하여 제 2혼합액을 준비하였다. 상기 제 1 혼합액 80 중량%와 사이 제 2 혼합액 20 중량%의 비율로 혼합하여 혼합액[A]를 조제하고, 용매로서 에틸셀로솔브 50 중량%, 톨루엔 30 중량% 및 메탄올 20 중량%의 비율로 혼합하여 혼합용매[b]를 조제하였다.60% by weight of polyoxyethylene methacrylate and 40% by weight of 2-hydroxyethyl methacrylate were prepared to prepare a first mixture, 60% by weight of methyl methacrylate, 20% by weight of N-methylol acrylamide, and A second mixture was prepared by mixing methacrylic acid at a ratio of 20% by weight. 80 wt% of the first mixed solution and 20 wt% of the second mixed solution were mixed to prepare a mixed solution [A], and 50 wt% of ethyl cellosolve, 30 wt% of toluene, and 20 wt% of methanol as a solvent. It mixed and prepared the mixed solvent [b].

혼합용매[b]중에 포토크로믹제 10 중량%, 이소시아네이트화합물(상품명 : 스미듈 44V-10/스미또모 우레탄주식회사)을 중합체의 고형분에 대해 3 중량%, γ-아미노프로필메톡시실란 3.0 중량% 및 멜라민화합물 30 중량%를 첨가하고 교반 혼합하여 혼합용매[c]를 조제하였다.10 wt% of the photochromic agent, isocyanate compound (trade name: Sumidule 44V-10 / Sumitomo Urethane Co., Ltd.) in the mixed solvent [b], 3 wt% based on the solids content of the polymer, γ-aminopropylmethoxysilane 3.0 wt%, and 30 wt% of the melamine compound was added and stirred and mixed to prepare a mixed solvent [c].

마지막으로 혼합액A 40 중량%와 혼합용매[c] 60 중량%의 비율로 혼합 교반한 다음 실시예 1과 같은 반응조작으로 피복제를 얻었다. 얻어진 피복제를 실시예 1과 같은 방법으로 경화시켜 두께 1㎛의 도포막을 형성시켰다. 이 도포막에 대하여 물성시험을 행한 겨롸 현저하게 방담과 자외선에 의한 가역반응을 나타내었다. 즉 태양의 직사일광을 접촉하면 즉시 청보라로 착색되고 실내에 들어오면 원래의 투명으로 복원한다.Finally, the mixture was stirred and mixed at a ratio of 40% by weight of the mixed solution A and 60% by weight of the mixed solvent [c], and then a coating agent was obtained by the same reaction procedure as in Example 1. The obtained coating agent was hardened by the method similar to Example 1, and the coating film of thickness 1micrometer was formed. When the physical property test was carried out on this coating film, reversible reaction by antifogging and ultraviolet rays was remarkably outstanding. In other words, when it is in direct sunlight, it is immediately colored in bluish violet, and when it enters the room, it restores its original transparency.

Claims (5)

메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 중에서 선택된 열경화형 중합체와 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종 이상의 가교제를 함유함을 특징으로 하는 김서림방지용 피복조성물.Selected from dimethylaminoethyl methacrylate salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compound, N-methylol acrylamide, acrylonitrile and N-methoxymethylated nylon Antifogging coating composition characterized by containing at least three types of crosslinking agents selected from thermosetting polymers, oxazoline compounds, isocyanate compounds, organic titanate compounds, organosilane compounds, 1,4-bis (chloromethyl) benzene and melamine compounds . 제 1항에 있어서 상기 가교계의 함량이 상기 중합체의 고형분에 대하여 1.0 내지 30 중량%임을 특징으로 하는 김서림방지용 피복조성물The antifogging coating composition according to claim 1, wherein the content of the crosslinking system is 1.0 to 30% by weight based on the solid content of the polymer. 메타크릴산디메틸아미노에틸-메틸클로라이드염, 2-하이드록시에틸메타크릴레이트, 폴리옥시에틸렌모노메타크릴레이트, 카르복실기 함유화합물, N-메틸올아크릴아미드, 아크릴니트릴 및 N-메톡시메틸화나일론 중에서 선택된 열경화형 중합체를 유기용매중에서 혼합하고 수득된 혼합물을 옥사졸린화합물, 이소시아네이트화합물, 유기티타네이트화합물, 유기실란화합물, 1,4-비스(클로로메틸)벤젠 및 멜라민화합물중에서 선택된 3종 이상의 가교제와 혼합시킴을 특징으로 하는 김서림방지용 피복조성물의 제조방법.Selected from dimethylaminoethyl methacrylate salt, 2-hydroxyethyl methacrylate, polyoxyethylene monomethacrylate, carboxyl group-containing compound, N-methylol acrylamide, acrylonitrile and N-methoxymethylated nylon The thermosetting polymer is mixed in an organic solvent and the resulting mixture is mixed with at least three crosslinking agents selected from oxazoline compounds, isocyanate compounds, organotitanate compounds, organosilane compounds, 1,4-bis (chloromethyl) benzene and melamine compounds. Method for producing a coating composition for preventing antifogging, characterized in that. 제 3항에 있어서 상기 유기용매가 톨루엔, 메틸에틸케톤, 메탄올, 메틸셀로솔브, 아세트산메틸 및 테트라하이드로푸란중에서 선택된 것임을 특징으로 하는 김서림방지용 피복조성물의 제조방법.The method of claim 3, wherein the organic solvent is selected from toluene, methyl ethyl ketone, methanol, methyl cellosolve, methyl acetate, and tetrahydrofuran. 제 1항 또는 제2항의 피복조성물을 폴리에스테르수지, 폴리비닐클로라이드수지, 아크릴수지, 폴리카보네이트수지, 유리 또는 금속재료에 피복시켜 제조된 성형제품.A molded article prepared by coating the coating composition of claim 1 or 2 on a polyester resin, polyvinyl chloride resin, acrylic resin, polycarbonate resin, glass or metal material.
KR1019970028674A 1997-06-28 1997-06-28 Antifog coating composition KR19990004548A (en)

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