KR100892105B1 - Heat resistanst coatings manufacturing method - Google Patents

Heat resistanst coatings manufacturing method Download PDF

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KR100892105B1
KR100892105B1 KR1020080049624A KR20080049624A KR100892105B1 KR 100892105 B1 KR100892105 B1 KR 100892105B1 KR 1020080049624 A KR1020080049624 A KR 1020080049624A KR 20080049624 A KR20080049624 A KR 20080049624A KR 100892105 B1 KR100892105 B1 KR 100892105B1
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siloxane
heat
acrylic
hydroxyl
functional group
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KR1020080049624A
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Korean (ko)
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유수용
이준근
이종민
한연희
김병근
이진경
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유수용
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18Fireproof paints including high temperature resistant paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic

Abstract

A method for producing heat-resistant coating is provided for a thermal transfer sheet by securing excellent heat resistance, abrasion resistance, anti-scratching, lubrication, surface migration for a plastic film. A heat-resistant coating is prepared by copolymerizing acryl intermediate, methylmethacrylate and methacrylic acid. The acryl intermediate is prepared by a urethane reaction of hydroxyl groups of hydroxyl-based acrylate and amino groups of amino-based acrylate to induce acryl functional groups within siloxane among hydroxyl groups of siloxane intermediate, NCO groups of isocyanate and acrylate monomers.

Description

내열보호성 코팅제의 제조방법{Heat resistanst coatings manufacturing method}Heat resistanst coatings manufacturing method

본 발명은 열전사 시트의 기재로서 사용되는 플라스틱 필름에 우수한 내열성, 내마모성, 내스크레치성, 윤활성, 표면이행성을 부여하여 서멀헤드에 의한 마모 및 파우더의 발생우려가 낮은 내열보호층을 형성할 수 있는 내열보호성 코팅제의 제조방법에 관한 것이다.The present invention provides excellent heat resistance, abrasion resistance, scratch resistance, lubricity, and surface migration property to a plastic film used as a substrate of a thermal transfer sheet, thereby forming a heat resistant protective layer having low thermal head wear and powder. The present invention relates to a method for preparing a heat resistant coating.

열전사 프린터에서 사용되고 있는 잉크리본은 얇은 폴리에스테르 필름을 기재 시트로 하여 기재 시트 표면에 승화성 염료와 바인더로 구성된 염료층을 설치한 승화 형 열전사 시트와, 그 염료층 대신에 안료와 왁스로 되는 잉크 층을 설치한 열 융해형의 열전사 시트가 알려져 있다. The ink ribbon used in the thermal transfer printer is a sublimation type thermal transfer sheet having a thin polyester film as a base sheet and a dye layer composed of a sublimable dye and a binder on the surface of the base sheet, and a pigment and wax instead of the dye layer. BACKGROUND OF THE INVENTION A thermal fusion thermal transfer sheet provided with an ink layer is known.

이러한 열전사 시트는 배면이 프린트의 서멀헤드에 의해 가열되어 염료층의 염료 또는 잉크층을 피전사체에 전사시키고 화상을 형성하는 것이다. 열전사 시트 가 서멀헤드에 의해 화상이 형성될 경우 기재 필름으로 폴리에스테르 필름과 같은 열가소성 필름을 사용했을 때 서멀헤드의 열에 의해 기재 필름이 부분적으로 용융되어, 용융물이 서멀헤드에 부착되거나 기재필름에 주름이 생성되는 스틱킹 현상이 발생한다.In this thermal transfer sheet, the back surface is heated by the thermal head of the print to transfer the dye or ink layer of the dye layer to the transfer target and form an image. When the thermal transfer sheet is imaged by the thermal head, when a thermoplastic film such as a polyester film is used as the base film, the base film is partially melted by the heat of the thermal head, and the melt adheres to the thermal head or the substrate film. Sticking phenomenon occurs that wrinkles are generated.

상기 스틱킹 현상은 열전사 기록매체의 반송불량을 발생시켜 화상형성을 곤란하게 만든다. 이러한 스틱킹 문제를 해결하는 방법으로서 현재 기재 필름 보호용 내열층을 형성할 수 있는 다양한 내열성 코팅재료들이 제안되어 있다.The sticking phenomenon causes a poor conveyance of the thermal transfer recording medium, making image formation difficult. As a method of solving this sticking problem, various heat resistant coating materials capable of forming a heat resistant layer for protecting a base film are currently proposed.

종래에는 고급 알콜의 아크릴산 에스테르 또는 메타크릴산 에스테르를 함유한 중합체 코팅재료 및 수산기를 함유한 열가소성수지를 폴리이소시아네이트로 가교 경화한 코팅 재료 등이 있다(일본 공개특허 평05-39796, 평06-33006). 하지만 상기의 방법은 열전사 시트가 프린트에서 장시간 인자 주행 시 필요한 윤활성을 얻는 것이 곤란하고, 가교를 위해 장시간 숙성처리과정이 요구되는 등의 문제가 있다. Conventionally, polymer coating materials containing acrylic acid esters or methacrylic acid esters of higher alcohols, and coating materials obtained by crosslinking and curing a thermoplastic resin containing hydroxyl groups with polyisocyanate (Japanese Patent Application Laid-Open No. H05-39796, H06-33006) ). However, the above method has a problem that it is difficult for the thermal transfer sheet to obtain the lubricity necessary for printing for a long time in a print, and a long time aging treatment process is required for crosslinking.

이러한 문제를 해결하기 위하여 폴리디메틸실록산계를 그라프트 혹은 블록공중합을 이용한 방법이 대두되고 있다. 대표적으로 폴리디메틸실록산계 그라프트 공중합체를 함유하는 코팅 재료와 폴리디메틸실록산계 공중합체 코팅 재료를 사용하여 기존보다 내열성 및 윤활성을 향상시킨 예가 있다(일본 공개특허 평02-274596, 평10-297123).In order to solve this problem, a method using a graft or block copolymerization of a polydimethylsiloxane is emerging. Representatively, there is an example in which heat resistance and lubricity are improved by using a coating material containing a polydimethylsiloxane graft copolymer and a polydimethylsiloxane copolymer coating material than before (Japanese Patent Laid-Open No. 02-274596, H10-297123). ).

최근에는 폴리디메틸실록산 편말단에 비닐기가 중합된 물질을 사용하여 폴리디메틸 실록산계 그라프트중합을 하거나 아조기를 함유한 폴리디메틸실록산을 블록공중합하여 코팅 재료로 사용하기도 한다(공개특허 2006-126504).Recently, polydimethylsiloxane graft polymerization is performed using a vinyl group polymerized material at one end of polydimethylsiloxane, or polydimethylsiloxane containing azo group is used as a coating material by block copolymerization (Patent 2006-126504).

본 발명의 목적은, 열전사 시트의 기재로 사용되는 플라스틱 필름에 우수한 내열성, 내마모성, 내스크레치성, 윤활성, 표면이행성을 부여하여 서멀헤드에 의한 마모 및 파우더의 발생우려가 낮은 내열보호층을 형성할 수 있는 내열보호성 코팅제를 제공함에 있어, 기존 제품의 물성에 비하여 동등 이상의 물성을 보유하면서 기술의 국산화와 제품의 제조단가를 낮추어 좀 더 경쟁력 있는 제품을 생산하는 내열보호성 코팅제의 제조방법을 제공하는데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a heat-resistant protective layer having low heat and abrasion and powder generation by providing excellent heat resistance, abrasion resistance, scratch resistance, lubricity and surface migration property to a plastic film used as a substrate for a thermal transfer sheet. In providing a heat-resistant protective coating that can be formed, the method of producing a heat-resistant protective coating to produce a more competitive product by lowering the localization of technology and manufacturing cost of the product while having more than the same physical properties of the existing product To provide.

본 발명의 내열보호성 코팅제의 제조 방법은, 아크릴 중간체(아크릴 Intermediate, 아크릴 IMA)와 메틸메타아크릴레이트(MMA), 메타아크릴산(MAA)의 자유 라디칼 공중합 반응으로 제조하되,
상기 아크릴 중간체는 상기 실록산 중간체(실록산 Intermediate, 실록산 IMA)의 양 말단 수산기(Hydroxy functional group)와 이소시아네이트의 NCO기(functional group), 아크릴레이트 모노머 중 하이드록실계 아크릴레이트의 수산기(Hydroxy functional group) 또는 아미노계 아크릴레이트의 아민기(Amino functional group)의 우레탄 반응으로 실록산에 아크릴 관능기를 도입하여 생성되며,
상기 실록산 중간체는 양 말단에 수산기(Hydroxy functional group)을 가진 폴리디메틸실록산과 환형 디메틸실록산의 이온중합 반응에 의해 양 말단에 수산기(Hydroxy functional group)를 가지며 Si-O 고리 사슬길이가 30~250개 연장된 것을 특징으로 한다.
The method for producing a heat-resistant coating of the present invention is prepared by the free radical copolymerization reaction of acrylic intermediate (acrylic intermediate, acrylic IMA), methyl methacrylate (MMA), methacrylic acid (MAA),
The acrylic intermediate may be a hydroxyl terminal of both ends of the siloxane intermediate (siloxane intermediate, siloxane IMA), an NCO group of an isocyanate, a hydroxyl group of a hydroxyl-based acrylate among the acrylate monomers, or A urethane reaction of an amino functional group of an amino acrylate is produced by introducing an acrylic functional group into the siloxane,
The siloxane intermediate has a hydroxyl group (Hydroxy functional group) at both ends and a Si-O ring chain length of 30 ~ 250 by the ion polymerization reaction of polydimethylsiloxane having a hydroxyl group (Hydroxy functional group) and cyclic dimethylsiloxane at both ends It is characterized by an extension.

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바람직하게, 이온중합 개시제는 수산화 칼륨인 것을 특징으로 한다.Preferably, the ion polymerization initiator is characterized in that potassium hydroxide.

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본 발명에 따른 내열보호성 코팅제의 제조방법은 실록산 단위 사슬당 Si-O 결합의 수(30~250개)를 상승시켜 기존 실리콘 수지보다 내열성을 향상시킬 수 있으며, 양 말단에 하이드록시기 또는 아미노기를 가지기 때문에 우레탄 혹은 우레아 반응을 통하여 아크릴관능기를 도입할 수 있다. 아크릴관능기가 도입되면 자유라디칼 반응을 통하여 아크릴 모노머를 중합하여 실리콘과 아크릴 물성을 모두 지닌 실리콘-아크릴 공중합체를 합성할 수 있다.The method for preparing a heat-resistant protective coating according to the present invention can increase the number of Si-O bonds (30 to 250) per siloxane unit chain to improve heat resistance than conventional silicone resins, and hydroxyl or amino groups at both ends. Since it has a urethane or urea reaction can introduce acrylic functional groups. When the acrylic functional group is introduced, the acrylic monomer may be polymerized by free radical reaction to synthesize a silicone-acryl copolymer having both silicone and acrylic properties.

양 말단에 하이드록시 치환기를 가진 폴리디메틸실록산은 높은 열적안정성과 산화안정성, 내후성, 동적 유연성 등의 특성을 지니고 있으며, 여기에 접목하는 아크릴 수지는 높은 내후성과 우수한 표면 이행성, 강인성 등의 장점을 지닌다.Polydimethylsiloxanes having hydroxy substituents at both ends have characteristics of high thermal stability, oxidative stability, weather resistance, and dynamic flexibility, and the acrylic resin grafted thereto has advantages of high weatherability, excellent surface transitionability, and toughness. Have

또한 렌덤 공중합을 이용하게 되면, 높은 작업성을 보이게 되는데 이것은 그라프트중합을 사용할 경우 편말단에 아크릴을 치환할 수 있는 치환기를 도입하는 공정이 필요하며, 일반 블록공중합의 경우는 반응을 유도하기가 매우 힘이 들기 때문이다. 하지만 렌덤공중합의 경우 실리콘-아크릴 공중합체의 주 사슬에 있어서 아크릴이 차지하는 사슬이 실리콘이 차지하는 사슬보다 차지하는 비중이 월등히 많다. 따라서 랜덤공중합의 경우는 실리콘 사슬과 아크릴 사슬이 규칙적으로 배열되지 않기 때문에 실리콘의 물성이 일정하게 발현되기 힘든 단점도 가지고 있다. 따라서 본 제품에서는 실리콘의 Si-O사슬을 30~250개로 증가시키면서 실리콘의 물성이 저하되는 단점을 보완하였다.In addition, when random copolymerization is used, high workability is exhibited. In the case of graft polymerization, a step of introducing a substituent capable of substituting acryl at one end is required, and in general block copolymerization, it is difficult to induce a reaction. It is very hard. However, in the case of random copolymerization, in the main chain of the silicone-acrylic copolymer, the chain occupied by acryl is much higher than the chain occupied by silicon. Therefore, in the case of random copolymerization, since silicone chains and acrylic chains are not regularly arranged, there is a disadvantage in that the physical properties of silicon are hardly expressed. Therefore, in this product, while increasing the Si-O chain of silicon to 30 ~ 250 to compensate for the disadvantage that the physical properties of the silicon is lowered.

이하 본 발명의 내열보호성 코팅제의 제조방법에 대하여 자세히 설명한다. 본 발명에 따른 내열보호성 코팅제는 아조계 개시제를 사용하여 아크릴 중간체와 메틸메타아크릴레이트(MMA), 메타아크릴산(MAA)의 자유 라디칼 공중합 반응으로 생성된다. 이때, 아조계 개시제는 아조비스이소부티로니트릴를 사용하며, 실리콘-아크릴 공중합체 공정 원료비는 아크릴 중간체 100중량부를 기준으로 메틸에틸케톤 50~300중량부, 톨루엔 50~300중량부 메틸메타아크릴레이트 50~300중량부, 메타아크릴산 1~30중량부, 아조비스이소부티로니트릴 0.1~5중량부이다.Hereinafter will be described in detail for the production method of the heat-resistant protective coating of the present invention. The heat resistant coating agent according to the present invention is produced by the free radical copolymerization reaction of acrylic intermediate, methyl methacrylate (MMA) and methacrylic acid (MAA) using an azo initiator. In this case, the azo initiator is azobisisobutyronitrile, the silicon-acrylic copolymer process raw material cost is 50 to 300 parts by weight of methyl ethyl ketone, 50 to 300 parts by weight of methyl methacrylate 50 based on 100 parts by weight of the acrylic intermediate It is -300 weight part, 1-30 weight part of methacrylic acid, and 0.1-5 weight part of azobisisobutyronitrile.

메틸메타아크릴레이트의 함량이 너무 적으면 아크릴 물성이 떨어져 도막이 잘 형성되지 않으며, 너무 많으면 실리콘의 물성이 떨어져 슬립성이 떨어지고, 내열성 또한 떨어진다. 그리고, 메타아크릴산의 경우 반응성이 좋아 아크릴레이트가 자유라디칼반응을 하는데 있어서 라디칼의 생성에 도움을 주어 반응시간 단축에 영향을 미치게 된다.If the content of methyl methacrylate is too small, the acrylic properties are poor, the coating film is not well formed, if too much, the physical properties of the silicone fall, the slip properties are poor, and the heat resistance is also poor. In addition, in the case of methacrylic acid has good reactivity, the acrylate helps to generate radicals in the free radical reaction, thereby affecting the reaction time shortening.

아크릴 중간체는, 상기 실록산 중간체의 양 말단 수산기(Hydroxy functional group)와 이소시아네이트의 NCO기(functional group), 아크릴레이트 모노머 중 하이드록실계 아크릴레이트의 수산기(Hydroxy functional group) 또는 아미노계 아크릴레이트의 아민기(Amino functional group) 의 우레탄 혹은 우레아 반응으로 생성된다.The acrylic intermediate may be a hydroxyl terminal (Hydroxy functional group) of the siloxane intermediate, an NCO group (functional group) of isocyanate, a hydroxyl group of a hydroxyl acrylate (Hydroxy functional group) or an amino acrylate of an acrylate monomer. It is produced by urethane or urea reaction of (Amino functional group).

이때, 아크릴 중간체의 원료 사용비는, 실록산 중간체 100중량부를 기준으로 하여 메틸에틸케톤 50~250중량부, 톨루엔 50~250중량부, 이소시아네이트 1~30중량부, 아크릴레이트 모노머 1~30중량부인 것이 바람직하다.At this time, the raw material usage ratio of the acrylic intermediate is 50 to 250 parts by weight of methyl ethyl ketone, 50 to 250 parts by weight of toluene, 1 to 30 parts by weight of isocyanate, and 1 to 30 parts by weight of acrylate monomer based on 100 parts by weight of siloxane intermediate. desirable.

반응 함량비는 당량비에 의거하여 계산되어지며, 메틸에틸케톤과 톨루엔의 경우 원하는 고형분의 수치만큼 늘이거나 줄일 수 있다. The reaction content ratio is calculated based on the equivalence ratio, and in the case of methyl ethyl ketone and toluene can be increased or decreased by the desired solid content.

당량비의 계산 NCO value : OH value = 1 : 1Calculation of equivalence ratio NCO value: OH value = 1: 1

아크릴 중간체는 실록산 중간체, 메틸에틸케톤, 톨루엔, 이소시아네이트, 디부틸틴라우레이트를 투입하고 40~60℃에서 실록산 중간체와 이소시아네이트를 우레탄 반응시킨다. 이후 실록산 중간체와 이소시아네이트의 우레탄 반응이 종료되면 2-하이드록시에틸메타크릴레이트를 투입하여 실록산 중간체 말단의 NCO기(functional group)와 2-하이드록시에틸메타크릴레이트의 수산기(Hydroxy functional group)의 우레탄반응을 통해 제조한다.As the acrylic intermediate, siloxane intermediate, methyl ethyl ketone, toluene, isocyanate and dibutyl tin laurate are added, and the siloxane intermediate and the isocyanate are urethane-reacted at 40 to 60 ° C. After the completion of the urethane reaction between the siloxane intermediate and the isocyanate, 2-hydroxyethyl methacrylate is added to the urethane of the NCO group (functional group) and 2-hydroxyethyl methacrylate hydroxyl group (Hydroxy functional group) at the end of the siloxane intermediate. Prepared through the reaction.

본 반응에서는 반응수율과 반응조건, 제조단가 등을 고려하여 이소시아네이트로 톨루엔디이소시아네이트를, 아크릴 관능기 부여 모노머로 2-하이드록시에틸메타크릴레이트를 선정하여 사용했다.In this reaction, toluene diisocyanate was used as an isocyanate and 2-hydroxyethyl methacrylate was selected as an acryl functional group provision monomer in consideration of reaction yield, reaction conditions, manufacturing cost, and the like.

실록산 중간체는 양 말단에 하이드록시기를 가진 폴리디메틸실록산과 환형 디메틸실록산의 이온 중합반응으로 생성된다.The siloxane intermediate is produced by the ionic polymerization of polydimethylsiloxane with hydroxy groups at both ends and cyclic dimethylsiloxane.

한편, 실록산 중간체 제조단계의 원료 사용비는 환형디메틸실록산 100중량부를 기준으로 폴리디메틸실록산 20~50중량부, 수산화 칼륨 0.001~1중량부로 사용된다. 이때, 폴리디메틸실록산의 함량이 너무 적으면 사슬의 길이가 크게 증가하여 사용의 어려움이 따르며, 함량이 너무 많으면 사슬의 길이가 짧아 실록산의 물성을 제대로 발현할 수 없다. 또한, 수산화칼륨이 너무 적으면 개시반응이 일어나지 않아 미반응이 증가하며, 너무 많을 경우 다방면에서 개시가 일어나 디메틸실록산의 사슬을 연결하는데 있어서 반응시간이 늘어나며, 미반응물의 생성 또한 늘어난다. On the other hand, the raw material use ratio of the siloxane intermediate manufacturing step is used as 20 to 50 parts by weight of polydimethylsiloxane, 0.001 to 1 part by weight of potassium hydroxide based on 100 parts by weight of cyclic dimethylsiloxane. At this time, if the content of polydimethylsiloxane is too small, the length of the chain is greatly increased, which leads to difficulty of use, and if the content is too high, the length of the chain is short and the physical properties of the siloxane cannot be properly expressed. In addition, too little potassium hydroxide does not cause an initiation reaction to increase the unreacted, if too much initiation occurs in many ways to increase the reaction time in connecting the chain of dimethylsiloxane, the production of unreacted material also increases.

이하, 본 발명에 따른 내열보호성 코팅제의 제조를 위한 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, a description will be given of a preferred embodiment for the production of a heat-resistant protective coating according to the invention.

<< 실시예1Example 1 >>

1) 실록산 중간체의 제조1) Preparation of Siloxane Intermediates

교반기, 온도계, 콘덴서, 질소 도입관이 장착된 500ml 4구 둥근바닥 플라스크에 환형 디메틸 실록산 200g, 폴리디메틸 실록산 80g, 수산화 칼륨 0.05g 를 투입하고 140℃에서 6시간 중합시킨다. 이후 아세트산 0.05g 을 투입하고 아스피레이터로 실록산 미반응물을 제거하였다.Into a 500 ml four-necked round bottom flask equipped with a stirrer, a thermometer, a condenser, and a nitrogen introduction tube, 200 g of cyclic dimethyl siloxane, 80 g of polydimethyl siloxane, and 0.05 g of potassium hydroxide were added and polymerized at 140 ° C. for 6 hours. Thereafter, 0.05 g of acetic acid was added thereto, and the unreacted siloxane was removed by an aspirator.

2) 아크릴 중간체의 제조2) Preparation of Acrylic Intermediates

교반기, 온도계, 콘덴서, 질소 도입관이 장착된 500ml 4구 둥근바닥 플라스크에 실록산 중간체 100g, 메틸에틸케톤 150g, 톨루엔 150g, 톨루엔디이소시아네이트 15g, 디부틸틴디라우레이트 적정량 을 투입하고 40℃로 승온 하여 2시간동안 반응시킨다. 이후 실록산 중간체와 톨루엔 디이소시아네이트의 우레탄 반응이 종료되면 2-하이드록시에틸메타아크릴 레이트 15g을 투입하고 2시간 더 반응시켰다.Into a 500 ml four-necked round bottom flask equipped with a stirrer, a thermometer, a condenser, and a nitrogen introduction tube, 100 g of siloxane intermediate, 150 g of methyl ethyl ketone, 150 g of toluene, 15 g of toluene diisocyanate, and an appropriate amount of dibutyl tin dilaurate were added thereto, and the temperature was raised to 40 ° C. React for 2 hours. After the urethane reaction between the siloxane intermediate and toluene diisocyanate was terminated, 15 g of 2-hydroxyethyl methacrylate was added and reacted for another 2 hours.

3) 내열보호성 코팅제(실리콘-아크릴 공중합체)의 제조3) Preparation of heat resistant coating agent (silicone-acryl copolymer)

교반기, 온도계, 콘덴서가 장착된 500ml 4구 둥근바닥 플라스크에 메틸에틸케톤 100g, 톨루엔 100g을 투입하고 70℃로 승온 하였다. 여기에 아크릴 중간체 50g, 메틸메타크 릴레이트 100g, 메타크릴산 15g, 아조비스이소부티로니트릴 1g을 2시간동안 적하 하며 반응 시켰다. 이후 아조비스이소부티로니트릴 0.5g 을 추가로 투입하여 잔류 미반응물을 제거하였다. Into a 500 ml four-necked round bottom flask equipped with a stirrer, a thermometer and a condenser, 100 g of methyl ethyl ketone and 100 g of toluene were added and heated to 70 ° C. 50 g of acrylic intermediate, 100 g of methyl methacrylate, 15 g of methacrylic acid, and 1 g of azobisisobutyronitrile were added dropwise for 2 hours to react. Thereafter, 0.5 g of azobisisobutyronitrile was further added to remove residual unreacted material.

<< 실시예2Example 2 >>

실시예1의 내열보호성 코팅제 제조시 아크릴 중간체만을 70g으로 변경 첨가하여 내열보호성 코팅제인 실록산-아크릴 공중합체를 제조하였다. In preparing the heat-resistant coating of Example 1, only the acrylic intermediate was changed to 70 g to prepare a siloxane-acrylic copolymer as a heat-resistant coating.

<< 실시예3Example 3 >>

실시예1의 내열보호성 코팅제 제조시 아크릴 중간체만을 90g으로 변경 첨가하여 내열보호성 코팅제인 실록산-아크릴 공중합체를 제조하였다. In preparing the heat-resistant coating of Example 1, only the acrylic intermediate was changed to 90 g to prepare a siloxane-acrylic copolymer as a heat-resistant coating.

<테스트><Test>

상기와 같이 제조된 내열보호성 코팅제액을 적용한 열전사 기록매체를 라벨 프린터(Zebra社제 140XiIIIP)에서 인자 에너지는 통상으로서, 인자스피드(speed)는 4inch/초를 선택하고, 전용 라벨지(라벨 폭 110mm, 길이 55mm) 에 동일 바코드 테스트 패턴을 20000장 인자주행 후 서멀헤드칩핑 상태와 바코드프린터기의 최고온도 인자 후 기재필름의 스틱킹 현상에 관한 평가 결과를 표 1에 나타내었다.The heat transfer recording medium to which the heat-resistant coating solution prepared as described above is applied in a label printer (140XiIIIP manufactured by Zebra), the printing energy is generally selected, the printing speed is 4 inches / second, and the label (label width) 110mm, 55mm length) The evaluation results of the sticking phenomenon of the base film after the thermal head chipping state and the maximum temperature printing of the barcode printer after printing the same barcode test pattern in 20000 sheets printing is shown in Table 1.

[표 1]TABLE 1

실시예1Example 1 실시예2Example 2 실시예3Example 3 서멀헤드 칩핑(헤드 발열체)Thermal head chipping (head heating element) 서멀헤드 칩핑(탈락칩)Thermal head chipping (dropping chip) 스틱킹Stick King <서멀헤드 칩핑(헤드 발열체)> ○:융착물 없음, △:융착물 약간 있음(인자에 영향 없음), ×:융착물 있음(인자불량) 서멀헤드 칩핑(탈락칩)> ○:백분 없음, △:백분 약간 있음(인자에 영향 없음), ×:백분이 퇴적됨(인자불량) <스틱킹> ○:필름상에 주름 없음, △:필름상에 주름이 발생하여 인자에 영향이 있음, ×:큰 주름이 발생하여 주행이 불가<Thermal head chipping (head heating element)> ○: no fusion, △: some fusion (no effect on factors), ×: fusion (defect) Thermal head chipping (dropping chip)> ○: no powder (Triangle | delta): There is a little white powder (it does not affect a factor), X: White powder is deposited (defective factor) <sticking> ○: There is no wrinkle on a film, △: Wrinkles generate | occur | produce on a film, and a factor is affected, × : Large wrinkles occur and driving is impossible

[표 1]에서 나타난 바와 같이, 내열보호성 코팅제를 도포한 기록매체는 서멀헤드 칩핑(헤드 발열체) 테스트 결과에서 알 수 있듯이 융착물이 생성되지 않았으며 이는 내열성이 우수한 것을 알 수 있다. 또한, 서멀헤드 칩핑(탈락칩) 테스트 결과에서 알 수 있듯이 백분의 생성이 없거나 혹은 약간 생성되는 것으로 보아 내스크레치성과 내마모성이 우수한 것을 알 수 있다. 또한, 스틱킹 테스트 결과에서 알 수 있듯이 주름이 발생하지 않아 윤활성과 표면이행성이 우수한 것을 알 수 있다.As shown in Table 1, the recording medium coated with the heat-resistant coating did not produce a fusion as can be seen from the thermal head chipping (head heating element) test result, which shows that the heat resistance was excellent. In addition, as can be seen from the thermal head chipping (dropping chip) test results, it can be seen that there is no or little generation of powder, which is excellent in scratch resistance and wear resistance. In addition, as can be seen from the sticking test results, the wrinkles do not occur, it can be seen that excellent lubricity and surface migration.

Claims (10)

삭제delete 삭제delete 아크릴 중간체(아크릴 Intermediate, 아크릴 IMA)와 메틸메타아크릴레이트(MMA), 메타아크릴산(MAA)의 자유 라디칼 공중합 반응시켜 제조하되, Prepared by free radical copolymerization of acrylic intermediate (acrylic intermediate, acrylic IMA), methyl methacrylate (MMA), methacrylic acid (MAA), 상기 아크릴 중간체는 상기 실록산 중간체(실록산 IMA)의 양 말단 수산기(Hydroxy functional group)와 이소시아네이트의 NCO기(functional group), 아크릴레이트 모노머 중 하이드록실계 아크릴레이트의 수산기(Hydroxy functional group) 또는 아미노계 아크릴레이트의 아민기(Amino functional group)의 우레탄 반응으로 실록산에 아크릴 관능기를 도입하여 생성되며, The acrylic intermediate may be a hydroxyl terminal (Hydroxy functional group) of the siloxane intermediate (siloxane IMA), an NCO group (functional group) of isocyanate, a hydroxyl group of a hydroxyl acrylate of the acrylate monomer or an amino acryl It is produced by introducing an acrylic functional group into the siloxane by the urethane reaction of an amine group of the rate (Amino functional group), 상기 실록산 중간체(실록산 IMA)는 양 말단에 수산기(Hydroxy functional group)을 가진 폴리디메틸실록산과 환형 디메틸실록산의 이온중합 반응에 의해 양 말단에 수산기(Hydroxy functional group)를 가지며 Si-O 고리 사슬길이가 30~250개 연장된 것을 특징으로 하는 내열보호성 코팅제의 제조방법.The siloxane intermediate (siloxane IMA) has a hydroxyl group (Hydroxy functional group) at both ends and an Si-O ring chain length at both ends by an ion polymerization reaction of polydimethylsiloxane having a hydroxyl group at both ends and a cyclic dimethylsiloxane. Method of producing a heat-resistant protective coating, characterized in that extending 30 to 250. 제3항에 있어서, The method of claim 3, 상기 이온중합 반응의 개시제는 수산화 칼륨인 것을 특징으로 하는 내열보호성 코팅제의 제조방법.The initiator of the ion polymerization reaction is a method of producing a heat-resistant protective coating, characterized in that potassium hydroxide. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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WO2007088922A1 (en) 2006-02-03 2007-08-09 Jsr Corporation Conductive transparent film and use thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088922A1 (en) 2006-02-03 2007-08-09 Jsr Corporation Conductive transparent film and use thereof

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