KR102497752B1 - A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition - Google Patents
A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition Download PDFInfo
- Publication number
- KR102497752B1 KR102497752B1 KR1020200172123A KR20200172123A KR102497752B1 KR 102497752 B1 KR102497752 B1 KR 102497752B1 KR 1020200172123 A KR1020200172123 A KR 1020200172123A KR 20200172123 A KR20200172123 A KR 20200172123A KR 102497752 B1 KR102497752 B1 KR 102497752B1
- Authority
- KR
- South Korea
- Prior art keywords
- group
- formula
- coating composition
- weight
- carbon atoms
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/83—Chemically modified polymers
- C08G18/837—Chemically modified polymers by silicon containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
본 발명은 인쇄회로기판(PCB) 보호용 수분산 폴리우레탄 함유 코팅제 조성물 및 상기 코팅제 조성물로 코팅된 인쇄회로기판에 대한 것이다.The present invention relates to a coating agent composition containing water-dispersed polyurethane for protecting a printed circuit board (PCB) and a printed circuit board coated with the coating agent composition.
Description
본 발명은 인쇄회로기판(PCB) 보호용 수분산 폴리우레탄 함유 코팅제 조성물 및 상기 코팅제 조성물로 코팅된 인쇄회로기판에 대한 것이다.The present invention relates to a coating agent composition containing water-dispersed polyurethane for protecting a printed circuit board (PCB) and a printed circuit board coated with the coating agent composition.
인쇄회로기판은 기판에 인쇄된 회로설계에 따라 각종 부품을 연결하여 모든 전자제품의 신경회로로 사용되는 것으로써 인쇄회로기판에는 반도체 소자와 같은 각종 전자부품들이 장착되어 온도, 습도, 미세먼지와 같은 외부의 환경이나 충격으로부터 안전하게 보호할 필요가 있다. 또한, 전기적 절연과 단선이나 부품 및 solder joint의 부식을 막고, 회로 및 부품들을 마모나 용매로부터 보호하여야 한다. 상기 목적 외에도 전자 제품의 신뢰성을 확보하기 위해서 인쇄회로기판의 보호막 코팅은 점점 더 필수 공정으로 부상하고 있다. 이러한 필요성으로 인해 컨포멀 코팅(conformal coating)이 개발, 상용화되어 사용되어지고 있다. 컨포멀 코팅은 아크릴, 실리콘, 우레탄, 파릴렌 등과 같은 성분들이 주요 성분으로 사용한다.A printed circuit board is used as a neural circuit of all electronic products by connecting various parts according to the circuit design printed on the board. It is necessary to safely protect it from the external environment or impact. In addition, electrical insulation and disconnection or corrosion of components and solder joints must be prevented, and circuits and components must be protected from abrasion or solvent. In addition to the above purpose, in order to secure the reliability of electronic products, protective film coating of printed circuit boards is emerging as an increasingly essential process. Due to this need, a conformal coating has been developed, commercialized, and used. Conformal coatings use components such as acrylic, silicone, urethane, and parylene as main components.
일반적으로 인쇄회로기판에서 불량이 발견된 경우, 불량의 정도를 확인하여 폐기해야 되는 제품들은 폐기를 하지만, 사소한 불량이 있는 제품은 간단한 수리작업을 통해서 정상제품으로 만들기도 한다. 그런데, 컨포멀 코팅이 되어 있는 불량품을 수리하려고 하면 컨포멀 코팅을 먼저 제거해야 하는데, 현재 사용중인 컨포멀 코팅제들은 제거가 전혀 되지 않거나 매우 어렵게 제거가 되어 제품에 악영향을 미칠 가능성이 농후하다. 일부 제품은 코팅제가 경화가 되지 않은 경우에는 쉽게 제거가 가능하다고 하지만, 경화가 된 후에 불량들이 발견되는 경우에는 제거가 불가능하다. 이는 인쇄회로기판의 보호에만 집중한 기존 컨포멀 코팅제들의 한계라고 볼 수 있다.In general, when a defect is found in a printed circuit board, the extent of the defect is checked and the products that need to be discarded are discarded, but the product with minor defects can be made into a normal product through simple repair work. However, when trying to repair a defective product with conformal coating, the conformal coating must be removed first, but the conformal coating agents currently in use are not removed at all or are removed with great difficulty, which is highly likely to adversely affect the product. Some products say that it can be easily removed if the coating is not cured, but if defects are found after curing, it is impossible to remove. This can be seen as a limitation of existing conformal coatings that focus only on the protection of printed circuit boards.
이에 경화가 된 후에도 필요에 따라 용이하게 컨포멀 코팅제를 제거할 수 있어 인쇄회로기판의 사소한 불량을 수정 가능하면서도, 동시에 인쇄회로기판의 보호제로서 요구되는 강도, 내열성, 내한성, 난연성 등의 기능을 충족하는 코팅제 조성물을 개발할 필요가 있다.Even after curing, the conformal coating agent can be easily removed as needed to correct minor defects of the printed circuit board, while at the same time meeting the functions such as strength, heat resistance, cold resistance, and flame retardancy required as a protective agent for the printed circuit board. There is a need to develop a coating agent composition that
코팅제 경화 이후에도 필요에 따라 용이하게 코팅제를 제거할 수 있어 인쇄회로기판의 사소한 불량을 수정할 수 있는 코팅제 조성물을 제공하고자 한다.An object of the present invention is to provide a coating agent composition capable of correcting minor defects of a printed circuit board by easily removing the coating agent as needed even after the coating agent is cured.
나아가 인쇄회로기판의 보호 코팅제로서 요구되는 강도, 절연성, 내열성, 내한성, 난연성 등의 물성을 충족하는 코팅제 조성물을 제공하고자 한다.Furthermore, it is intended to provide a coating composition that satisfies physical properties such as strength, insulation, heat resistance, cold resistance, and flame retardancy required as a protective coating agent for printed circuit boards.
본 발명의 일 양태는 수평균 분자량 1,000 g/mol 내지 3,000 g/mol 범위의 수분산 폴리우레탄을 포함하는, 인쇄회로기판 보호용 코팅제 조성물에 관한 것이다. One aspect of the present invention relates to a coating composition for protecting a printed circuit board comprising a water-dispersible polyurethane having a number average molecular weight of 1,000 g/mol to 3,000 g/mol.
본 발명의 다른 일 양태는, 본원의 코팅제 조성물로 코팅된 코팅층을 포함하는 인쇄회로기판에 관한 것이다.Another aspect of the present invention relates to a printed circuit board comprising a coating layer coated with the coating composition of the present application.
본 발명에 따른 코팅제 조성물은, 경화 이후에도 용이하게 코팅제를 제거할 수 있어 인쇄회로기판의 사소한 불량을 수정 가능하다.The coating agent composition according to the present invention can easily remove the coating agent even after curing, so that minor defects of the printed circuit board can be corrected.
나아가 인쇄회로기판의 보호 코팅제로서 절연성, 강도, 내열성, 내한성, 난연성 등의 물성을 만족한다.Furthermore, as a protective coating agent for printed circuit boards, it satisfies physical properties such as insulation, strength, heat resistance, cold resistance, and flame retardancy.
본 발명의 일 양태는 수평균 분자량 1,000 g/mol 내지 3,000 g/mol 범위의 수분산 폴리우레탄을 포함하는, 인쇄회로기판 보호용 코팅제 조성물에 관한 것이다.One aspect of the present invention relates to a coating composition for protecting a printed circuit board comprising a water-dispersible polyurethane having a number average molecular weight of 1,000 g/mol to 3,000 g/mol.
상기 수분산 폴리우레탄은 하나 이상의 폴리올을 디이소시아네이트와 친수성을 갖는 디올과 반응시키고, 이를 물에 분산시켜 제조될 수 있다. 본 발명에서는 수평균 분자량이 1,000 g/mol 내지 3,000 g/mol의 범위인 수분산 폴리우레탄을 사용하여 경화 이후라도 특정 용매에 용해되어 쉽게 제거될 수 있음을 밝혀냈다. 일반적인 수분산 폴리우레탄 합성법은 위 폴리올과 디이소시아네이트와 친수성 갖는 디올과의 반응 후, 관능기가 2 내지 4인 아민 등을 사용하여 쇄를 연장시켜 분자량을 증가시킨다. 본 발명의 저분자량을 갖는 수분산 폴리우레탄은 폴리올과 디이소시아네이트계 화합물 반응 후 쇄 연장 반응을 생략함으로써 제조될 수 있다.The water-dispersed polyurethane may be prepared by reacting at least one polyol with a diisocyanate and a hydrophilic diol and dispersing the same in water. In the present invention, it was found that by using water-dispersed polyurethane having a number average molecular weight in the range of 1,000 g/mol to 3,000 g/mol, it can be easily removed by being dissolved in a specific solvent even after curing. In a general water-dispersion polyurethane synthesis method, molecular weight is increased by extending the chain using an amine having a functional group of 2 to 4 after reacting the above polyol with diisocyanate and a hydrophilic diol. The water-dispersed polyurethane having a low molecular weight of the present invention can be produced by omitting a chain extension reaction after reacting a polyol with a diisocyanate-based compound.
상기 폴리올은 폴리에스테르디올, 폴리에테르디올, 폴리카보네이트디올, 카프로락톤디올, 폴리프로필렌글리콜, 폴리에틸렌글리콜 등의 폴리알킬렌글리콜, 및 아크릴폴리올 등을 사용할 수 있다. 구체 예에서, 상기 폴리올은 필요에 따른 용매로의 제거 용이의 측면에서 폴리카보네이트디올, 폴리테트라하이드로푸란 또는 폴리카프로락톤을 사용할 수 있다. 보다 구체예에서 상기 폴리올은 분자량 200 내지 1000 정도의 낮은 분자량을 갖는 것을 사용하는 것이 바람직하며, 특히 분자량 300 내지 800 정도를 가진다. As the polyol, polyalkylene glycols such as polyester diol, polyether diol, polycarbonate diol, caprolactone diol, polypropylene glycol, and polyethylene glycol, and acrylic polyol may be used. In a specific embodiment, the polyol may be polycarbonate diol, polytetrahydrofuran, or polycaprolactone in terms of easy removal with a solvent as needed. In a more specific embodiment, it is preferable to use a polyol having a low molecular weight of about 200 to 1000 molecular weight, and particularly having a molecular weight of about 300 to 800.
상기 디이소시아네이트로는 톨리렌디이소시아네이트, 디페닐메탄-4,4'-디이소시아네트, p-페닐렌디이소시아네이트, 크실릴렌디이소시아네이트, 1,5-나프틸렌 디이소시아네이트, 3,3'-디메틸디페닐-4,4'-디이소시아네이트, 디아니시딘이시소시아네이트, 테트라메틸크실릴렌디이소시아네이트 등의 방향족 디이소시아네이트; 이소포론디이소시아네이트, 디시클로헥실메탄-4,4'-디이소시아네이트, 트랜스-1,4-시클로헥실디이소시아네이트, 노르보르넨디이소시아네이트 등의 지환식 디이소시아네이트; 1,6-헥사메틸렌디이소시아네이트, 2,4 및/또는 (2,4,4)-트리메틸헥사메틸렌디이소시아네이트, 리신디이소시아네이트 등의 지방족 디이소시아네이트를 들 수 있다. 디이소시아네이트로서는 얻어지는 폴리우레탄 분자 및 이것에서 얻어지는 코팅막의 내열성이 뛰어나기 때문에, 지환식 디이소시아네이트가 바람직하고, 이소포론 디이소시아네이트, 디시클로헥실메탄-4,4'-디이소시아네이트가 보다 바람직하다.Examples of the diisocyanate include tolylene diisocyanate, diphenylmethane-4,4'-diisocyanate, p-phenylene diisocyanate, xylylene diisocyanate, 1,5-naphthylene diisocyanate, 3,3'-dimethyldiphenyl -Aromatic diisocyanates such as 4,4'-diisocyanate, dianisidine isocyanate, and tetramethylxylylene diisocyanate; alicyclic diisocyanates such as isophorone diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, trans-1,4-cyclohexyl diisocyanate, and norbornene diisocyanate; and aliphatic diisocyanates such as 1,6-hexamethylene diisocyanate, 2,4 and/or (2,4,4)-trimethylhexamethylene diisocyanate, and lysine diisocyanate. As the diisocyanate, an alicyclic diisocyanate is preferable, and isophorone diisocyanate and dicyclohexylmethane-4,4'-diisocyanate are more preferable since the polyurethane molecule obtained and the coating film obtained therefrom have excellent heat resistance.
상기 친수성을 갖는 디올은 폴리우레탄 예비중합체가 물에 분산될 수 있도록 도입되며, 구체적으로는 디메틸올프로피온산, 디메틸올 부타노익산, 2,2-비스(하이드록시메틸)부타노익산 등을 사용할 수 있다.The hydrophilic diol is introduced so that the polyurethane prepolymer can be dispersed in water, and specifically, dimethylolpropionic acid, dimethylol butanoic acid, 2,2-bis (hydroxymethyl) butanoic acid, etc. can be used. there is.
상기 폴리우레탄 중합체 제조시 사용되는 유기용매는 예를 들어, 벤젠, 톨루엔, 에틸아세테이트, 아세톤, 메틸에틸케톤, 디에틸 에테르, 테트라하이드로퓨란, 초산메틸, 아세토니트릴, 클로로포름, 염화메틸렌, 사염화탄소, 1,2-디클로로에탄, 1,1,2-트리클로로에탄, 테트라클로로에틸렌, N-메틸피롤리돈, 디프로필렌글리콜디메틸에테르 등이 있으며, 이들은 단독 또는 혼합하여 사용할 수 있다. 본 발명의 구체적인 실시에 있어서, 상기 유기 용매는 N-메틸피롤리돈을 사용하는 것이 좋다.The organic solvent used in the preparation of the polyurethane polymer is, for example, benzene, toluene, ethyl acetate, acetone, methyl ethyl ketone, diethyl ether, tetrahydrofuran, methyl acetate, acetonitrile, chloroform, methylene chloride, carbon tetrachloride, 1 ,2-dichloroethane, 1,1,2-trichloroethane, tetrachloroethylene, N-methylpyrrolidone, dipropylene glycol dimethyl ether, and the like, which may be used alone or in combination. In a specific practice of the present invention, it is preferable to use N-methylpyrrolidone as the organic solvent.
본 발명에 따른 수분산 폴리우레탄은 추가로 블로킹제를 첨가하여 제조될 수 있다. 상기 블로킹제는 1관능성 알코올 또는 1관능성 아민일 수 있다. 구체 예에서, 예비중합체의 중량을 기준으로 블로킹제는 약 0.1 중량％ 내지 약 6.0 중량％ 및 약 1.0 중량％ 내지 약 4.0 중량％를 포함하여 약 0.05 중량％ 내지 약 10.0 중량％의 양으로 포함될 수 있다. 블로킹제의 혼입으로 분산액 중 중합체의 수평균 분자량에 대해 제어를 가능하게 할 뿐만 아니라 중합체 분자량 분포에 대한 제어를 제공할 수 있다. 저분자량의 폴리우레탄 제조를 위해, 1관능성 알코올 또는 1관능성 아민은 분산되기 전에 예비중합체의 일부로서 첨가되고 반응되는 경우 가장 효율적이다. 본 발명에 유용한 1관능성 알코올의 예는 1개 내지 18개의 탄소를 갖는 지방족 및 지환족 1차 및 2차 알코올, 페놀, 치환 페놀, 분자량이 500 미만의 에톡실화 알킬 페놀 및 에톡실화 지방 알코올, 히드록시아민, 히드록시메틸 및 히드록시에틸 치환 3차 아민, 히드록시메틸 및 히드록시에틸 치환 헤테로시클릭 화합물 및 이들의 조합으로 이루어진 군으로부터 선택된 1종 이상을 포함하며, 푸르푸릴 알코올, 테트라히드로푸르푸릴 알코올, N-(2-히드록시에틸)숙신이미드, 4-(2-히드록시에틸)모르폴린, 메탄올, 에탄올, 부탄올, 네오펜틸 알코올, 헥산올, 시클로헥산올, 시클로헥산메탄올, 벤질 알코올, 옥탄올, 옥타데칸올, N,N-디에틸히드록실아민, 2-(디에틸아미노)에탄올, 2-디메틸아미노에탄올 및 4-피페리딘에탄올 및 이들을 조합을 포함한다. The water-dispersed polyurethane according to the present invention may be prepared by further adding a blocking agent. The blocking agent may be a monofunctional alcohol or a monofunctional amine. In embodiments, the blocking agent may be included in an amount of about 0.05% to about 10.0% by weight, including about 0.1% to about 6.0% and about 1.0% to about 4.0% by weight of the prepolymer. there is. The incorporation of a blocking agent may allow control over the number average molecular weight of the polymer in the dispersion, as well as provide control over the polymer molecular weight distribution. For low molecular weight polyurethane production, monofunctional alcohols or monofunctional amines are most effective when added as part of the prepolymer and reacted before being dispersed. Examples of monofunctional alcohols useful in the present invention include aliphatic and cycloaliphatic primary and secondary alcohols having from 1 to 18 carbons, phenols, substituted phenols, ethoxylated alkyl phenols and ethoxylated fatty alcohols having a molecular weight of less than 500; It includes at least one selected from the group consisting of hydroxyamine, hydroxymethyl and hydroxyethyl substituted tertiary amines, hydroxymethyl and hydroxyethyl substituted heterocyclic compounds, and combinations thereof, furfuryl alcohol, tetrahydro Furfuryl alcohol, N-(2-hydroxyethyl)succinimide, 4-(2-hydroxyethyl)morpholine, methanol, ethanol, butanol, neopentyl alcohol, hexanol, cyclohexanol, cyclohexanemethanol, benzyl alcohol, octanol, octadecanol, N,N-diethylhydroxylamine, 2-(diethylamino)ethanol, 2-dimethylaminoethanol and 4-piperidineethanol and combinations thereof.
적합한 1관능성 아민 블로킹제의 예는 N-N-디에틸아민, N-에틸-N-프로필아민, N,N-디이소프로필아민, N-tert-부틸-N-메틸아민, N-tert-부틸-N-벤질아민, N,N-디시클로헥실아민, N-에틸-N-이소프로필아민, N-tert-부틸 -N-이소프로필아민, N-이소프로필-N-시클로헥실아민, N-에틸-N-시클로헥실아민, N,N-디에탄올아민, 및 2,2,6,6-테트라메틸피페리딘을 포함한다. Examples of suitable monofunctional amine blocking agents are N-N-diethylamine, N-ethyl-N-propylamine, N,N-diisopropylamine, N-tert-butyl-N-methylamine, N-tert-butyl -N-benzylamine, N,N-dicyclohexylamine, N-ethyl-N-isopropylamine, N-tert-butyl -N-isopropylamine, N-isopropyl-N-cyclohexylamine, N- ethyl-N-cyclohexylamine, N,N-diethanolamine, and 2,2,6,6-tetramethylpiperidine.
이후, 폴리우레탄 예비중합체는 모노아민 화합물과 반응시켜 수용화될 수 있다. 모노아민 화합물은 예컨대 에틸아민, 프로필아민, 2-프로필아민, 부틸아민, 2-부틸아민, 제3부틸아민, 트리에틸아민, 이소부틸아민 등의 알킬아민; 아닐린, 메틸아닐린, 페닐나프틸아민, 나프틸아민 등의 방향족 아민; 시클로헥산아민, 메틸시클로헥산아민 등의 지환식 아민; 2-메톡시에틸아민, 3-메톡시프로필아민, 2-(2-메톡시에톡시)에틸아민 등의 에테르아민; 에탄올아민, 프로판올아민, 부틸에탄올아민, 1-아미노-2-메틸-2-프로판올, 2-아미노-2-메틸프로판올, 디에탄올아민, 디이소프로판올아민, 디메틸아미노프로필에탄올아민, 디프로판올아민, N-메틸에탄올아민, N-에틸에탄올아민 등의 알카놀아민 등을 들 수 있다. 그 중에서도 트리에틸아민, 이소부틸아민 등과 같은 알킬아민이 폴리우레탄 분자에 대해서 양호한 수분산 안정성을 부여하므로 양호하다.The polyurethane prepolymer can then be water-solubilized by reacting with a monoamine compound. Monoamine compounds include, for example, alkylamines such as ethylamine, propylamine, 2-propylamine, butylamine, 2-butylamine, tert-butylamine, triethylamine, and isobutylamine; Aromatic amines, such as aniline, methylaniline, phenyl naphthylamine, and naphthylamine; alicyclic amines such as cyclohexanamine and methylcyclohexanamine; ether amines such as 2-methoxyethylamine, 3-methoxypropylamine, and 2-(2-methoxyethoxy)ethylamine; Ethanolamine, propanolamine, butylethanolamine, 1-amino-2-methyl-2-propanol, 2-amino-2-methylpropanol, diethanolamine, diisopropanolamine, dimethylaminopropylethanolamine, dipropanolamine, N -Alkanolamines, such as methylethanolamine and N-ethylethanolamine, etc. are mentioned. Among them, alkylamines such as triethylamine and isobutylamine are preferable because they impart good water dispersion stability to polyurethane molecules.
본 발명에 있어서, 저분자량의 수분산 폴리우레탄 제조를 위해, 통상 실시되는 디아민 화합물에 의한 쇄 연장 반응은 실시하지 않는다. 쇄 연장을 위한 디아민 화합물의 예로는 에틸렌디아민, 프로필렌디아민 등의 저분자 디아민류; 폴리옥시프로필렌디아민, 폴리옥시에틸렌디아민 등의 폴리에테르디아민류; 멘텐디아민(menthenediamine), 이소포론디아민, 노르보르넨디 아민, 비스(4-아미노-3-메틸디시클로헥실)메탄, 디아미노디시클로헥실메탄, 비스(아미노메틸)시클로헥산, 3,9-비스(3-아미노프로필)2,4,8,10-테트라옥사스피로(5,5) 운데칸 등의 지환식 디아민류; m-크실렌디아민, α-(m/p 아미노페닐)에틸아민, m-페닐렌디아민, 디아미노디페닐메탄, 디아민디페닐설폰, 디아미노디에틸디메틸디페닐메탄, 디아미노디에틸디페닐메탄, 디메틸티오톨루엔디아민, 디에틸톨루엔디아민, α,α'-비스(4-아미노페닐)-p-디 이소프로필벤젠 등의 방향족디아민류; 1,4-부탄디올; 또는 히드라진 등을 들 수 있다. 본 발명의 수분산 폴리우레탄은 이에 상기한 디아민 화합물을 그 제조 과정 중 사용하지 않는 것이 특징이다.In the present invention, for the production of low molecular weight water-dispersed polyurethane, chain extension reaction using a diamine compound, which is usually carried out, is not carried out. Examples of the diamine compound for chain extension include low molecular weight diamines such as ethylenediamine and propylenediamine; polyether diamines such as polyoxypropylene diamine and polyoxyethylene diamine; Menhenediamine, isophoronediamine, norbornenediamine, bis(4-amino-3-methyldicyclohexyl)methane, diaminodicyclohexylmethane, bis(aminomethyl)cyclohexane, 3,9-bis alicyclic diamines such as (3-aminopropyl)2,4,8,10-tetraoxaspiro(5,5)undecane; m-xylenediamine, α-(m/p aminophenyl)ethylamine, m-phenylenediamine, diaminodiphenylmethane, diaminediphenylsulfone, diaminodiethyldimethyldiphenylmethane, diaminodiethyldiphenylmethane aromatic diamines such as dimethylthiotoluenediamine, diethyltoluenediamine, and α,α'-bis(4-aminophenyl)-p-diisopropylbenzene; 1,4-butanediol; Or hydrazine etc. are mentioned. The water-dispersed polyurethane of the present invention is characterized in that the diamine compound described above is not used during its production process.
추가로 폴리우레탄 예비중합체에 실란커플링제를 첨가하여 예비중합체의 말단 NCO기를 실란커플링제로 캡핑시킬 수 있다. 상기 실란커플링제를 첨가함으로써 경도를 포함한 기계적 물성을 증진시키면서 내용제성(예컨대, 프로판-2-올에 대한 내용제성)을 개선시킬 수 있다. 실란커플링제로는 예비중합체의 말단 NCO기와 결합가능한 관능기를 갖는 것이라면 제한없이 사용할 수 있다. 구체적으로는 말단에 아민기를 갖는 실란커플링제를 사용할 수 있다. 예를 들어 실란커플링제로는 N-(β-아미노에틸)-γ-아미노프로필트리메톡시실란, N--(β-아미노에틸)-γ-아미노프로필메틸디메톡시실란, 및 3-아미노프로필트리에톡시실란으로 이루어진 군으로부터 선택된 적어도 하나를 사용할 수 있다. 더욱 구체예에서, 3-아미노프로필트리에톡시실란을 사용할 수 있다.Additionally, a silane coupling agent may be added to the polyurethane prepolymer to cap terminal NCO groups of the prepolymer with the silane coupling agent. Solvent resistance (eg, solvent resistance to propan-2-ol) may be improved while improving mechanical properties including hardness by adding the silane coupling agent. The silane coupling agent may be used without limitation as long as it has a functional group capable of bonding with the terminal NCO group of the prepolymer. Specifically, a silane coupling agent having an amine group at the terminal can be used. For example, silane coupling agents include N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, N--(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, and 3-aminopropyl At least one selected from the group consisting of triethoxysilane may be used. In a further embodiment, 3-aminopropyltriethoxysilane may be used.
본 발명에 따른 수분산 폴리우레탄은 경우에 따라서는 상기 코팅제 조성물 전체에 염료, 유기주석촉매 및 가수분해안정제가 더 포함될 수 있고, 상기 물질들은 코팅제 조성물 전체에 대해 각각 0.001~0.3중량%의 혼합비를 이루어 더 포함된다.In some cases, the water-dispersed polyurethane according to the present invention may further include a dye, an organic tin catalyst, and a hydrolysis stabilizer in the entire coating composition, and the materials are mixed in a mixing ratio of 0.001 to 0.3% by weight based on the total coating composition. done and more included.
본 발명의 수분산 폴리우레탄의 수평균 분자량(Mn)은 1,000 g/mol 내지 3,000 g/mol 범위, 구체적으로 1,000 g/mol 내지 2,800 g/mol의 범위, 보다 구체적으로는 1,100 내지 2,600 g/mol의 범위일 수 있다. The number average molecular weight (Mn) of the water-dispersible polyurethane of the present invention is in the range of 1,000 g/mol to 3,000 g/mol, specifically in the range of 1,000 g/mol to 2,800 g/mol, more specifically in the range of 1,100 to 2,600 g/mol may be in the range of
본 발명의 수분산 폴리우레탄의 평균 입도는 500 μm 이하, 구체적으로 250 μm 이하, 보다 구체적으로는 100 μm 이하일 수 있으며, 40 내지 80 μm의 평균 입도를 가질 수 있다. The average particle size of the water-dispersed polyurethane of the present invention may be 500 μm or less, specifically 250 μm or less, more specifically 100 μm or less, and may have an average particle size of 40 to 80 μm.
본 발명의 수분산 폴리우레탄의 NCO 함량은 5% 이하, 구체적으로 3% 이하, 보다 구체적으로는 1% 이하일 수 있다.The NCO content of the water-dispersed polyurethane of the present invention may be 5% or less, specifically 3% or less, and more specifically 1% or less.
상기 수분산 폴리우레탄은 코팅제 조성물 전체 중량 기준, 30 중량% 내지 80 중량%로 포함될 수 있고, 구체적으로는 40 중량% 내지 70 중량%로 포함될 수 있다.The water-dispersed polyurethane may be included in an amount of 30 wt % to 80 wt %, specifically, 40 wt % to 70 wt %, based on the total weight of the coating composition.
일 예에서, 상기 수분산 폴리우레탄은 하기 화학식 1로 표시되는 화합물일 수 있다:In one example, the water-dispersed polyurethane may be a compound represented by Formula 1 below:
[화학식 1][Formula 1]
상기 화학식 1에서, In Formula 1,
R1 내지 R8은 각각 독립적으로 수소 원자; 탄소수 4개 이하의 알킬기; 또는 탄소수 5 ~ 24개의, 페닐(phenyl)기, 바이페닐(biphenyl)기, 나프틸(naphthyl)기, 안트라센(anthracene)기, 페난트렌(phenanthrene)기, 파이렌(pyrene)기, 페릴렌(perylene)기, 크라이센(chrysene)기, 크레졸(cresol)기 및 플루오렌(fluorene)기로 이루어진 군에서 선택된 아릴기이고, R 1 to R 8 are each independently a hydrogen atom; an alkyl group having 4 or less carbon atoms; Or 5 to 24 carbon atoms, phenyl group, biphenyl group, naphthyl group, anthracene group, phenanthrene group, pyrene group, perylene ( An aryl group selected from the group consisting of a perylene group, a chrysene group, a cresol group, and a fluorene group,
n, 및 k는 각각 독립적으로 0 ~ 10 인 유리수이고, n and k are each independently rational numbers ranging from 0 to 10,
m은 독립적으로 화학식 1로 표시되는 화합물의 수평균분자량 1,000 g/mol ~ 3,000 g/mol를 만족하는 유리수이다. m is independently a rational number that satisfies the number average molecular weight of the compound represented by Formula 1 of 1,000 g/mol to 3,000 g/mol.
상기 화학식 1로 표시되는 화합물은, 하기 화학식 8로 표시되는 공중합체와 알코올류를 중합하여 제조될 수 있다:The compound represented by Chemical Formula 1 may be prepared by polymerizing a copolymer represented by Chemical Formula 8 and an alcohol:
[화학식 8][Formula 8]
상기 화학식 8에서, In Formula 8,
R1 내지 R8은 각각 독립적으로 수소 원자; 탄소수 4개 이하의 알킬기; 또는 탄소수 5 ~ 24개의, 페닐(phenyl)기, 바이페닐(biphenyl)기, 나프틸(naphthyl)기, 안트라센(anthracene)기, 페난트렌(phenanthrene)기, 파이렌(pyrene)기, 페릴렌(perylene)기, 크라이센(chrysene)기, 크레졸(cresol)기 및 플루오렌(fluorene)기로 이루어진 군에서 선택된 아릴기이고, R 1 to R 8 are each independently a hydrogen atom; an alkyl group having 4 or less carbon atoms; Or 5 to 24 carbon atoms, phenyl group, biphenyl group, naphthyl group, anthracene group, phenanthrene group, pyrene group, perylene ( An aryl group selected from the group consisting of a perylene group, a chrysene group, a cresol group, and a fluorene group,
n, 및 k는 각각 독립적으로 0 ~ 10 인 유리수이고, n and k are each independently rational numbers ranging from 0 to 10,
m은 독립적으로 화학식 8로 표시되는 화합물의 수평균 분자량 1,000 g/mol ~ 3,000 g/mol를 만족하는 유리수이다. m is independently a rational number that satisfies the number average molecular weight of the compound represented by Formula 8 of 1,000 g/mol to 3,000 g/mol.
상기 화학식 8의 화합물은 화학식 3, 화학식 4, 화학식 5로 표시되는 단량체를 화학식 2에 대해 각각, 1:0.1 내지 10, 1: 0.1 ~5.0, 1: 1.0~10.0의 몰비로 반응조에 도입시켜 제1 중합체를 형성하고, 상기 제1 중합체와 화학식 6의 단량체를 반응시켜 제2 중합체를 제조하고, 상기 제2 중합체에 화학식 7의 단량체를 반응시켜 제3 중합체를 제조하여 제조될 수 있다:The compound of Formula 8 is prepared by introducing the monomers represented by Formula 3, Formula 4, and Formula 5 into a reaction vessel at a molar ratio of 1:0.1 to 10, 1:0.1 to 5.0, and 1:1.0 to 10.0 with respect to Formula 2, respectively. It can be prepared by forming a first polymer, reacting the first polymer with a monomer of Formula 6 to prepare a second polymer, and reacting the second polymer with a monomer of Formula 7 to prepare a third polymer:
[화학식 3][Formula 3]
상기 화학식 3에서, R1 내지 R3는 각각 독립적으로 수소원자, 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다;In Formula 3, R 1 to R 3 are each independently a hydrogen atom, an aryl group having 5 to 24 carbon atoms, or an alkyl group having 4 or less carbon atoms;
[화학식 4][Formula 4]
상기 화학식 4에서 R1은 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다;In Formula 4, R 1 is an aryl group having 5 to 24 carbon atoms or an alkyl group having 4 or less carbon atoms;
[화학식 5][Formula 5]
상기 화학식 5에서 R1은 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다;In Formula 5, R 1 is an aryl group having 5 to 24 carbon atoms or an alkyl group having 4 or less carbon atoms;
[화학식 2][Formula 2]
상기 화학식 2에서 R1 내지 R4는 각각 독립적으로 수소 원자, 탄소수 4개 이하의 알킬기 또는 탄소수 5 ~ 24개 의 아릴기이고, n 및 k는 각각 독립적으로 0 ~ 10 인 유리수이고, m은 화학식 2로 표시되는 화합물의 중량평균 분자량(Mw) 1,000 ~ 3,000를 만족하는 유리수이다;In Formula 2, R 1 to R 4 are each independently a hydrogen atom, an alkyl group having 4 or less carbon atoms, or an aryl group having 5 to 24 carbon atoms, n and k are each independently a rational number of 0 to 10, and m is a formula It is a rational number that satisfies the weight average molecular weight (Mw) of 1,000 to 3,000 of the compound represented by 2;
[화학식 6][Formula 6]
상기 화학식 6에서 R1 내지 R3 는 각각 독립적으로 수소 원자, 탄소수 4개 이하의 알킬기 또는 탄소수 5 ~ 24개의 아릴기이다;In Formula 6, R 1 to R 3 are each independently a hydrogen atom, an alkyl group having 4 or less carbon atoms, or an aryl group having 5 to 24 carbon atoms;
[화학식 7][Formula 7]
상기 화학식 7에서 R1 내지 R3은 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다.In Formula 7, R 1 to R 3 are an aryl group having 5 to 24 carbon atoms or an alkyl group having 4 or less carbon atoms.
상기 양태에서 코팅제 조성물은 수분산 폴리우레탄 외에, 난연제, 염료, 안정화제, 충진제, 산화방지제, 및 점도 개질제로 이루어진 군으로부터 하나 이상 선택된 첨가제를 추가로 포함할 수 있다. 보다 구체적으로는 난연제, 염료, 및 충진제 중 어느 하나 이상을 포함할 수 있다.In the above aspect, the coating composition may further include one or more additives selected from the group consisting of a flame retardant, a dye, a stabilizer, a filler, an antioxidant, and a viscosity modifier, in addition to the water-dispersed polyurethane. More specifically, it may include any one or more of a flame retardant, a dye, and a filler.
상기 난연제의 예로는 인계 난연제 또는 할로겐족 난연제를 들 수 있고, 구체적으로는 인계 난연제를 사용할 수 있다. Examples of the flame retardant include a phosphorus-based flame retardant or a halogen-based flame retardant, and specifically, a phosphorus-based flame retardant may be used.
상기 첨가제는 각각 조성물 중 0.05 중량% 내지 5 중량%의 범위로 포함될 수 있다. Each of the additives may be included in the range of 0.05% to 5% by weight of the composition.
상기 양태에서 코팅제 조성물은 추가로 용매를 포함할 수 있으며, 상기 용매의 예로는 물, 알코올류 용매, 케톤류 용매, 및 글리콜에테르류 용매로 이루어진 군으로부터 하나 이상 선택될 수 있다. 상기 용매는 조성물 중 10 중량% 내지 60 중량%의 범위, 구체적으로 20 중량% 내지 50 중량%의 범위로 포함될 수 있다.In the above aspect, the coating composition may further include a solvent, and examples of the solvent may include at least one selected from the group consisting of water, alcohol solvents, ketone solvents, and glycol ether solvents. The solvent may be included in the range of 10% by weight to 60% by weight, specifically 20% by weight to 50% by weight of the composition.
본 발명의 다른 일 양태는, 본 발명의 코팅제 조성물로 코팅된 인쇄회로기판에 관한 것이다.Another aspect of the present invention relates to a printed circuit board coated with the coating composition of the present invention.
인쇄회로기판 상에 본 발명의 코팅제 조성물을 적용(예: 도포)하고 이를 경화시킴으로써 코팅층을 형성할 수 있다. 상기 경화는 100℃ 내지 160℃의 범위에서 1분 내지 30분간 방치하는 것을 포함할 수 있다.A coating layer may be formed by applying (eg, coating) the coating composition of the present invention on a printed circuit board and curing it. The curing may include leaving it for 1 minute to 30 minutes in the range of 100 ℃ to 160 ℃.
상기 코팅층은, 필요에 따라 특정 유기용매에 의해 제거가 용이하다. 본 발명의 코팅층을 제거하는 데 사용될 수 있는 유기용매로는 하기 화학식 9의 4급 암모늄염 화합물을 포함하는 용매를 들 수 있다:The coating layer is easily removed by using a specific organic solvent, if necessary. Organic solvents that can be used to remove the coating layer of the present invention include solvents containing a quaternary ammonium salt compound represented by the following formula (9):
[화학식 9] [Formula 9]
상기 화학식 9에서 R1 내지 R4는 각각 독립적으로 수소원자, 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다.In Formula 9, R 1 to R 4 are each independently a hydrogen atom, an aryl group having 5 to 24 carbon atoms, or an alkyl group having 4 or less carbon atoms.
코팅층 제거를 위한 유기 용매 중 상기 화학식 9의 4급 암모늄염 화합물은 1 내지 30 중량%로 포함될 수 있다.In the organic solvent for removing the coating layer, the quaternary ammonium salt compound of Chemical Formula 9 may be included in an amount of 1 to 30% by weight.
코팅층 제거 유기 용매는 추가로 
상기 계면활성제로는 평균 HLB(Hydrophile-Lipophile Balance)값이 10 내지 15인 것을 사용할 수 있으며, 비이온 계면활성제, 음이온 계면활성제 또는 이들의 혼합물을 들 수 있다. 비이온 계면활성제로는 알킬폴리 글루코사이드, 폴리옥시알킬렌 알킬에테르, 폴리옥시알킬렌 알킬 페닐에테르, 폴리옥시에틸렌 알킬 옥틸에테르, 폴리옥시에틸렌 폴리옥시프로필렌 블록공중합체, 폴리에틸렌글 리콜 지방산 에스테르 및 폴리옥시에틸렌 솔비탄 지방산 에스테르로 구성된 군으로부터 선택된 1종 이상을 포함하며, 음이온 계면활성제로는 알킬에테르설페이트, 알킬설페이트, 알킬벤젠설포네이트, 알킬설포숙시네이트, 알킬에테르포스페이트, 알킬포스페이트, 알킬벤젠포스페이트 및 이의 염으로 구성된 군으로부터 선택된 1종 이상을 포함할 수 있다.As the surfactant, those having an average HLB (Hydrophile-Lipophile Balance) value of 10 to 15 may be used, and nonionic surfactants, anionic surfactants, or mixtures thereof may be used. Nonionic surfactants include alkyl polyglucosides, polyoxyalkylene alkyl ethers, polyoxyalkylene alkyl phenyl ethers, polyoxyethylene alkyl octyl ethers, polyoxyethylene polyoxypropylene block copolymers, polyethylene glycol fatty acid esters and polyoxyethylene glycols. It contains at least one selected from the group consisting of ethylene sorbitan fatty acid esters, and the anionic surfactant includes alkyl ether sulfate, alkyl sulfate, alkyl benzene sulfonate, alkyl sulfosuccinate, alkyl ether phosphate, alkyl phosphate, and alkyl benzene phosphate. And it may include one or more selected from the group consisting of salts thereof.
이하 본 발명을 하기 실시예를 통하여 보다 상세하게 설명하기로 하나, 이는 본 발명의 이해를 돕기 위하여 제시된 것일 뿐, 본 발명이 이에 한정되는 것은 아니다. 이하 제조예 및 실시예의 중량%는 다른 표현이 없는 한, 전체 조성물의 중량 기준 백분율이다.Hereinafter, the present invention will be described in more detail through the following examples, but these are only presented to aid understanding of the present invention, and the present invention is not limited thereto. Unless otherwise indicated, the weight percentages in the preparation examples and examples below are percentages based on the weight of the total composition.
제조예 1 : 수평균 분자량 1,000 내지 3,000 범위의 수분산 폴리우레탄 합성Preparation Example 1: Synthesis of water-dispersed polyurethane having a number average molecular weight in the range of 1,000 to 3,000
반응기에 polycarbonatediol 9.84중량%, Isophorone diisocyanate 9.84중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다.9.84% by weight of polycarbonatediol, 9.84% by weight of isophorone diisocyanate, 4.52% by weight of NMP (N-methyl pyrrolidone), and 1.46% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80%. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 3-Aminopropyltriethoxysilane 4.14 중량%를 투입한 후, 2시간동안 300rpm으로 반응시켰다. After adding 4.14% by weight of 3-Aminopropyltriethoxysilane to the reactor while the reactor was maintained at 80° C., the reactor was reacted at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.63 중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.63% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량% 용액)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 1의 수분산 폴리우레탄을 제조하였다.A water-dispersed polyurethane of Preparation Example 1 was prepared by adding a triethylamine solution (1% by weight solution) to the polyurethane reactant, stirring at room temperature for 1 hour, and adding distilled water.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 1,150이고, 평균 입도는 100㎛ 이하로 40 ~ 80 ㎛였으며, NCO 함량은 1% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 1,150, an average particle size of 40 to 80 μm at 100 μm or less, and an NCO content of 1% or less.
상기 제조예 1에서 제조된 수분산 폴리우레탄의 각 조성은 다음 표 1과 같다:Each composition of the water-dispersed polyurethane prepared in Preparation Example 1 is shown in Table 1 below:
[제조예 2][Production Example 2]
반응기에 polycarbonatediol 10.04중량%, Toluene diisocyanate 8.03중량%, NMP(N-메틸 피롤리돈) 4.61중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.49중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 10.04% by weight of polycarbonatediol, 8.03% by weight of toluene diisocyanate, 4.61% by weight of NMP (N-methyl pyrrolidone), and 1.49% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80%. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 3-Aminopropyltriethoxysilane 4.14 중량%를 투입한 후, 2시간동안 300rpm으로 반응시켰다. After adding 4.14% by weight of 3-Aminopropyltriethoxysilane to the reactor while the reactor was maintained at 80° C., the reactor was reacted at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.70중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.70% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 2의 수분산 폴리우레탄을 제조하였다.A water dispersion polyurethane of Preparation Example 2 was prepared by adding a triethylamine solution (1% by weight) to the polyurethane reactant, stirring at room temperature for 1 hour, and adding distilled water.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 1,500이고, 평균 입도는 60㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 1,500, an average particle size of 60 μm, and an NCO content of 0.3% or less.
[제조예 3][Production Example 3]
반응기에 polycarbonatediol 9.53중량%, Tetramethylxylene diisocyanate 12.71중량%, NMP(N-메틸 피롤리돈) 4.38중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.41중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.53% by weight of polycarbonatediol, 12.71% by weight of tetramethylxylene diisocyanate, 4.38% by weight of NMP (N-methyl pyrrolidone), and 1.41% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80 °C. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 3-Aminopropyltriethoxysilane 4.14 중량%를 투입한 후, 2시간동안 300rpm으로 반응시켰다. After adding 4.14% by weight of 3-Aminopropyltriethoxysilane to the reactor while the reactor was maintained at 80° C., the reactor was reacted at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.51 중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.51% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 6의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour and distilled water was added to prepare a water-dispersed polyurethane of Preparation Example 6.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 2,300이고, 평균 입도는 65㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 2,300, an average particle size of 65 μm, and an NCO content of 0.3% or less.
[제조예 4][Production Example 4]
반응기에 polycaprolactone 9.65중량%, Isophorone diisocyanate 11.58중량%, NMP(N-메틸 피롤리돈) 4.43중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.43중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.65% by weight of polycaprolactone, 11.58% by weight of isophorone diisocyanate, 4.43% by weight of NMP (N-methyl pyrrolidone), and 1.43% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80%. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 3-Aminopropyltriethoxysilane 4.15 중량%를 투입한 후, 2시간동안 300rpm으로 반응시켰다. After adding 4.15% by weight of 3-Aminopropyltriethoxysilane to the reactor while the reactor was maintained at 80° C., the reactor was reacted at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.56 중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.56% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 6의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour and distilled water was added to prepare a water-dispersed polyurethane of Preparation Example 6.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 1,700이고, 평균 입도는 55㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 1,700, an average particle size of 55 μm, and an NCO content of 0.3% or less.
[제조예 5][Production Example 5]
반응기에 polytetrahydrofuran 11.84중량%, Isophorone diisocyanate 9.48중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 11.84% by weight of polytetrahydrofuran, 9.48% by weight of isophorone diisocyanate, 4.52% by weight of NMP (N-methyl pyrrolidone), and 1.46% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80%. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 3-Aminopropyltriethoxysilane 4.12 중량%를 투입한 후, 2시간동안 300rpm으로 반응시켰다. After adding 4.12% by weight of 3-Aminopropyltriethoxysilane to the reactor while the reactor was maintained at 80° C., the reactor was reacted at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.63 중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.63% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 6의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour and distilled water was added to prepare a water-dispersed polyurethane of Preparation Example 6.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 2,600이고, 평균 입도는 80㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 2,600, an average particle size of 80 μm, and an NCO content of 0.3% or less.
[제조예 6] [Production Example 6]
반응기에 polycarbonatediol 9.84중량%, Isophorone diisocyanate 9.84중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.84% by weight of polycarbonatediol, 9.84% by weight of isophorone diisocyanate, 4.52% by weight of NMP (N-methyl pyrrolidone), and 1.46% by weight of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated to raise the internal temperature to 80%. It was adjusted to °C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 ethanol 3.63 중량%를 투입한 후, 30분간 300rpm으로 반응시켜 폴리우레탄을 제조하였다.After adding 3.63% by weight of ethanol to the reactor while the reactor was maintained at 80° C., the reaction was performed at 300 rpm for 30 minutes to prepare polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하고 증류수를 첨가하여 제조예 6의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour and distilled water was added to prepare a water-dispersed polyurethane of Preparation Example 6.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 2,100이고, 평균 입도는 80㎛였으며, NCO 함량은 0.2% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 2,100, an average particle size of 80 μm, and an NCO content of 0.2% or less.
[비교제조예 1] [Comparative Manufacturing Example 1]
반응기에 polycarbonatediol (분자량 1,000) 9.84중량%, Isophorone diisocyanate 9.84중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.84 wt% of polycarbonatediol (molecular weight: 1,000), 9.84 wt% of isophorone diisocyanate, 4.52 wt% of NMP (N-methyl pyrrolidone), and 1.46 wt% of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated. The internal temperature was adjusted to 80°C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하였다. 반응기에 일정량의 EDA(ethylenediamine)를 소량의 물에 희석하여 투입한 후, 1시간동안 교반시켜 사슬연장된 비교제조예 1의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour. After diluting a certain amount of EDA (ethylenediamine) with a small amount of water and adding it to the reactor, it was stirred for 1 hour to prepare a chain-extended water-dispersible polyurethane of Comparative Preparation Example 1.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 3,500이고, 평균 입도는 65㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 3,500, an average particle size of 65 μm, and an NCO content of 0.3% or less.
[비교제조예 2] [Comparative Manufacturing Example 2]
반응기에 polycarbonatediol (분자량 1,000) 9.84중량%, Isophorone diisocyanate 9.84중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.84 wt% of polycarbonatediol (molecular weight: 1,000), 9.84 wt% of isophorone diisocyanate, 4.52 wt% of NMP (N-methyl pyrrolidone), and 1.46 wt% of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated. The internal temperature was adjusted to 80°C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
상기 반응기가 80℃로 유지되고 있는 상태에서 반응기에 일정량의 EDA(ethylenediamine)를 투입한 후, 1시간동안 300rpm으로 반응시켜 사슬연장된 폴리우레탄을 제조하였다.A certain amount of ethylenediamine (EDA) was added to the reactor while the reactor was maintained at 80° C., and reacted at 300 rpm for 1 hour to prepare chain-extended polyurethane.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하였다. 반응기에 일정량의 물을 투입한 후, 1시간동안 교반시켜 사슬연장된 비교제조예 2의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour. After a certain amount of water was added to the reactor, it was stirred for 1 hour to prepare a chain-extended water-dispersible polyurethane of Comparative Preparation Example 2.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 4,100이고, 평균 입도는 74㎛였으며, NCO 함량은 0.3% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 4,100, an average particle size of 74 μm, and an NCO content of 0.3% or less.
[비교제조예 3] [Comparative Manufacturing Example 3]
반응기에 polycarbonatediol (분자량 1,000) 9.84중량%, Isophorone diisocyanate 9.84중량%, NMP(N-메틸 피롤리돈) 4.52중량%, 2,2-Bis(hydroxymethyl) butanoic acid 1.46중량%를 넣고, 반응기를 가열하여 내부온도를 80℃로 조절하였다. 그 후, 2시간동안 300rpm으로 중합 반응시켰다. 9.84 wt% of polycarbonatediol (molecular weight: 1,000), 9.84 wt% of isophorone diisocyanate, 4.52 wt% of NMP (N-methyl pyrrolidone), and 1.46 wt% of 2,2-Bis (hydroxymethyl) butanoic acid were added to the reactor, and the reactor was heated. The internal temperature was adjusted to 80°C. Thereafter, polymerization was performed at 300 rpm for 2 hours.
트리에틸아민 용액 (1중량%)을 상기 폴리우레탄 반응물에 추가한 후 1시간동안 상온에서 교반하였다. 반응기에 일정량의 1,4-butanediol을 소량의 물에 희석하여 투입한 후, 1시간동안 교반시켜 사슬연장된 비교제조예 3의 수분산 폴리우레탄을 제조하였다.After adding a triethylamine solution (1% by weight) to the polyurethane reactant, the mixture was stirred at room temperature for 1 hour. After diluting a certain amount of 1,4-butanediol with a small amount of water and adding it to the reactor, it was stirred for 1 hour to prepare a chain-extended water-dispersible polyurethane of Comparative Preparation Example 3.
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 3,900이고, 평균 입도는 62㎛였으며, NCO 함량은 0.2% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 3,900, an average particle size of 62 μm, and an NCO content of 0.2% or less.
[비교제조예 4] [Comparative Manufacturing Example 4]
상기 비교제조예 1에서 polycarbonatediol(분자량 1,000)을 polycarbonatediol(분자량 2,000)로 바꾼 것을 제외하고는 동일하게 실시하여, 비교제조예 2의 수분산 폴리우레탄을 제조하였다.Water-dispersed polyurethane of Comparative Preparation Example 2 was prepared in the same manner as in Comparative Preparation Example 1, except that polycarbonatediol (molecular weight: 1,000) was replaced with polycarbonatediol (molecular weight: 2,000).
상기 제조된 수분산 폴리우레탄의 수평균 분자량은 약 4,200이고, 평균 입도는 70㎛였으며, NCO 함량은 0.5% 이하였다.The prepared water-dispersed polyurethane had a number average molecular weight of about 4,200, an average particle size of 70 μm, and an NCO content of 0.5% or less.
상기 제조예의 각 합성에 사용된 원료 물질은 각각 아래 표 2과 같다:The raw materials used in each synthesis of the above preparation examples are shown in Table 2 below, respectively:
실시예 Example
실시예 1 내지 6의 코팅제 조성물Coating Compositions of Examples 1 to 6
반응기에 상기 제조예 1 내지 6에서 합성한 수분산 폴리우레탄 59.8 중량%, 에탄올 40 중량%, 난연제 (상품명: HF900) 0.1 중량%, 염료 (제조원: haihang industry, 상품명: crystal violet lactone) 0.1 중량%를 첨가하고 1시간 동안 상온에서 교반하여 실시예 1 내지 6의 코팅제 조성물을 각각 제조하였다.In the reactor, 59.8% by weight of the water-dispersed polyurethane synthesized in Preparation Examples 1 to 6, 40% by weight of ethanol, 0.1% by weight of flame retardant (trade name: HF900), 0.1% by weight of dye (manufacturer: haihang industry, trade name: crystal violet lactone) was added and stirred at room temperature for 1 hour to prepare the coating compositions of Examples 1 to 6, respectively.
비교예 1 내지 4의 코팅제 조성물Coating Compositions of Comparative Examples 1 to 4
반응기에 상기 비교제조예 1 내지 4에서 합성한 수분산 폴리우레탄 59.8 중량%, 에탄올 40 중량%, 난연제 (상품명: HF900) 0.1 중량%, 염료 (제조원: haihang industry, 상품명: crystal violet lactone) 0.1 중량%를 첨가하고 1시간 동안 상온에서 교반하여 비교예 1 내지 4의 코팅제 조성물을 각각 제조하였다.In a reactor, 59.8% by weight of the water-dispersed polyurethane synthesized in Comparative Preparation Examples 1 to 4, 40% by weight of ethanol, 0.1% by weight of a flame retardant (trade name: HF900), 0.1% by weight of a dye (manufacturer: haihang industry, trade name: crystal violet lactone) % was added and stirred at room temperature for 1 hour to prepare coating compositions of Comparative Examples 1 to 4, respectively.
비교예 5Comparative Example 5
반응기에 YJ-350H (영진텍스켐: 수분산 폴리우레탄, 수평균 분자량: 3,500) 59.8 중량%, 에탄올 40 중량%, 난연제 (상품명: HF900) 0.1 중량%, 염료 (제조원: haihang industry, 상품명: crystal violet lactone ) 0.1 중량%를 첨가하고 1시간 동안 상온에서 교반하여 비교예 5의 코팅제 조성물을 제조하였다.YJ-350H (Youngjin Textchem: Water Dispersion Polyurethane, number average molecular weight: 3,500) 59.8 wt%, ethanol 40 wt%, flame retardant (trade name: HF900) 0.1 wt%, dye (manufacturer: haihang industry, trade name: crystal violet lactone) 0.1% by weight was added and stirred at room temperature for 1 hour to prepare a coating composition of Comparative Example 5.
실험예Experimental example
상기 실시예 1 내지 6의 코팅제 조성물, 및 상기 비교예 1 내지 5의 코팅제 조성물을 각각 IPC 다목적 시험 기판 패턴(IPC-B-25)에 도포한 후, 130℃에서 3분간 방치하여 코팅층을 형성시켰다.The coating composition of Examples 1 to 6 and the coating composition of Comparative Examples 1 to 5 were applied to the IPC multi-purpose test substrate pattern (IPC-B-25), and then allowed to stand at 130 ° C. for 3 minutes to form a coating layer. .
유기액체(프로판-2-올 액체)에 대한 저항력Resistance to organic liquids (propan-2-ol liquid)
상기 제조된 시료 각각을 23℃에서 2분간 프로판-2-올 액체 속에 완전히 담갔다. 이러한 처리 직후에 단단한 강모 칫솔을 사용하여 각 시료를 단일 방향으로 10번 솔질하였다. 정상 인공 조명에서 시료를 점검하였다. 시료의 제거, 잔금, 점착성 등과 같이 코팅의 전부나 일부의 열화 조짐이 감지되는지 확인하였다. 감지되면 X, 감지되지 않으면 O로 표시하였다.Each of the prepared samples was completely immersed in the propan-2-ol liquid at 23° C. for 2 minutes. Immediately after this treatment each sample was brushed 10 times in a single direction using a hard bristle toothbrush. Samples were checked under normal artificial light. It was confirmed whether signs of deterioration of all or part of the coating, such as sample removal, cracking, and tackiness, were detected. If it is detected, it is marked as X, and if it is not detected, it is marked as O.
코팅 제거력coating removal
Dimethyl sulfoxide 30 중량%, butyl carbitol 49 중량%, 4급 암모늄염인 테트라메틸암모늄 하이드록사이드 20 중량% 및 계면활성제 폴리옥시알킬렌 알킬 페닐에테르 1중량%를 첨가하고 혼합하여 코팅 제거 유기용매를 제조하였다.30% by weight of dimethyl sulfoxide, 49% by weight of butyl carbitol, 20% by weight of tetramethylammonium hydroxide, a quaternary ammonium salt, and 1% by weight of surfactant polyoxyalkylene alkyl phenyl ether were added and mixed to prepare a coating removal organic solvent. .
상기 제조된 시료 각각을 23℃에서 2분간 상기 코팅 제거 용매 속에 완전히 담그고, 이후 시료 상에 잔류하는 코팅제를 제거하기 위해 초순수로 10초간 세정 후 건조하였다. 건조된 시편을 육안으로 관찰하여 코팅제의 잔류 여부를 육안으로 확인하여 잔류하면 X, 잔류하지 않으면 O로 표시하였다.Each of the prepared samples was completely immersed in the coating removal solvent at 23° C. for 2 minutes, and then washed with ultrapure water for 10 seconds to remove the coating agent remaining on the sample and then dried. The dried specimen was visually observed to visually check whether or not the coating agent remained.
경도 평가hardness evaluation
쇼어 경도 D를 측정할 수 있는 경도측정기로 시료의 경도를 아래와 같은 방법으로 측정하였다:The hardness of the sample was measured with a hardness tester capable of measuring Shore hardness D in the following way:
경도측정기를 상기 경화된 코팅제 시료의 표면에 수직으로 고정하고, 경도측정기의 presser foot과 시료가 닿도록 충분한 힘을 가하여 표시되는 값을 읽는다.Fix the hardness tester vertically on the surface of the cured coating sample, apply sufficient force so that the presser foot of the hardness tester and the sample come into contact, and read the displayed value.
상기 평가 결과를 아래 표 3에 나타내었다:The evaluation results are shown in Table 3 below:
상기 결과로부터 본원 발명의 수평균 분자량 1,000 g/mol 내지 3,000 g/mol 범위의 수분산 폴리우레탄을 포함하는 인쇄회로기판 보호용 코팅제 조성물은 코팅제거력이 우수하고 유기액체에 대해서는 저항력이 있었을 뿐 아니라, 만족할 만한 정도의 경도를 나타내었다. From the above results, the coating composition for protecting a printed circuit board comprising a water-dispersible polyurethane having a number average molecular weight of 1,000 g/mol to 3,000 g/mol according to the present invention has excellent coating removal ability, resistance to organic liquids, and is satisfactory. It showed a degree of hardness.
하지만 비교예 1 내지 5의 조성물은 코팅 제거가 용이하지 않았고, 다른 유기액체에 대한 저항력도 약했으며, 특히 경도 면에서 저하되었다.However, the compositions of Comparative Examples 1 to 5 were not easy to remove the coating, had weak resistance to other organic liquids, and were particularly deteriorated in terms of hardness.
Claims (13)
[화학식 1]
상기 화학식 1에서,
R1 내지 R8은 각각 독립적으로 수소 원자; 탄소수 4개 이하의 알킬기; 또는 탄소수 5 ~ 24개의, 페닐(phenyl)기, 바이페닐(biphenyl)기, 나프틸(naphthyl)기, 안트라센(anthracene)기, 페난트렌(phenanthrene)기, 파이렌(pyrene)기, 페릴렌(perylene)기, 크라이센(chrysene)기, 크레졸(cresol)기 및 플루오렌(fluorene)기로 이루어진 군에서 선택된 아릴기이고,
n, 및 k는 각각 독립적으로 0 ~ 10 인 유리수이고,
m은 독립적으로 화학식 1로 표시되는 화합물의 수평균분자량 1,000 g/mol ~ 3,000 g/mol를 만족하는 유리수이다. A coating composition for protecting a printed circuit board comprising a water-dispersible polyurethane represented by Formula 1 below having a number average molecular weight of 1,000 g/mol to 3,000 g/mol:
[Formula 1]
In Formula 1,
R 1 to R 8 are each independently a hydrogen atom; an alkyl group having 4 or less carbon atoms; Or 5 to 24 carbon atoms, phenyl group, biphenyl group, naphthyl group, anthracene group, phenanthrene group, pyrene group, perylene ( An aryl group selected from the group consisting of a perylene group, a chrysene group, a cresol group, and a fluorene group,
n and k are each independently rational numbers ranging from 0 to 10,
m is independently a rational number that satisfies the number average molecular weight of the compound represented by Formula 1 of 1,000 g/mol to 3,000 g/mol.
[화학식 8]
상기 화학식 8에서,
R1 내지 R8은 각각 독립적으로 수소 원자; 탄소수 4개 이하의 알킬기; 또는 탄소수 5 ~ 24개의, 페닐(phenyl)기, 바이페닐(biphenyl)기, 나프틸(naphthyl)기, 안트라센(anthracene)기, 페난트렌(phenanthrene)기, 파이렌(pyrene)기, 페릴렌(perylene)기, 크라이센(chrysene)기, 크레졸(cresol)기 및 플루오렌(fluorene)기로 이루어진 군에서 선택된 아릴기이고,
n, 및 k는 각각 독립적으로 0 ~ 10 인 유리수이고,
m은 독립적으로 화학식 8로 표시되는 화합물의 수평균 분자량 1,000 g/mol ~ 3,000 g/mol를 만족하는 유리수이다. The coating composition according to claim 1, wherein the compound represented by Formula 1 is prepared by polymerizing a copolymer represented by Formula 8 and an alcohol:
[Formula 8]
In Formula 8,
R 1 to R 8 are each independently a hydrogen atom; an alkyl group having 4 or less carbon atoms; Or 5 to 24 carbon atoms, phenyl group, biphenyl group, naphthyl group, anthracene group, phenanthrene group, pyrene group, perylene ( An aryl group selected from the group consisting of a perylene group, a chrysene group, a cresol group, and a fluorene group,
n and k are each independently rational numbers ranging from 0 to 10,
m is independently a rational number that satisfies a number average molecular weight of 1,000 g/mol to 3,000 g/mol of the compound represented by Formula 8.
[화학식 9]
상기 화학식 9에서 R1 내지 R4는 각각 독립적으로 수소원자, 탄소수 5 ~ 24개의 아릴기 또는 탄소수 4개 이하의 알킬기이다.The coating composition according to any one of claims 1 to 5 and 7 to 10, wherein the composition is removable by an organic solvent containing a quaternary ammonium salt compound represented by the following formula (9) after curing:
[Formula 9]
In Formula 9, R 1 to R 4 are each independently a hydrogen atom, an aryl group having 5 to 24 carbon atoms, or an alkyl group having 4 or less carbon atoms.
A printed circuit board comprising a coating layer formed from the coating composition according to any one of claims 1 to 5 and 7 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200172123A KR102497752B1 (en) | 2020-12-10 | 2020-12-10 | A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200172123A KR102497752B1 (en) | 2020-12-10 | 2020-12-10 | A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20220082328A KR20220082328A (en) | 2022-06-17 |
| KR102497752B1 true KR102497752B1 (en) | 2023-02-10 |
Family
ID=82269154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020200172123A KR102497752B1 (en) | 2020-12-10 | 2020-12-10 | A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102497752B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006038466A1 (en) | 2004-10-05 | 2006-04-13 | Adeka Corporation | Water-dispersed polyurethane composition |
| JP2020007400A (en) | 2018-07-03 | 2020-01-16 | 三菱ケミカル株式会社 | Polycarbonate diol and aqueous polyurethane dispersion using the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI389975B (en) * | 2004-09-21 | 2013-03-21 | Showa Denko Kk | Thermosetting ethylcarbamate resin composition |
| TWI617869B (en) | 2006-05-16 | 2018-03-11 | 半導體能源研究所股份有限公司 | Liquid crystal display device and semiconductor device |
| JP4609606B1 (en) * | 2009-06-12 | 2011-01-12 | Ｄｉｃ株式会社 | Ink jet printing ink binder, ink jet printing ink containing the same, and printed matter |
| KR20120115792A (en) | 2011-04-11 | 2012-10-19 | 한국전자통신연구원 | System and method for providing information based on location information |
| CN113195644B (en) | 2018-12-19 | 2023-01-24 | 汉高股份有限及两合公司 | Coating against a substrate by in situ polymerization |
-
2020
- 2020-12-10 KR KR1020200172123A patent/KR102497752B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006038466A1 (en) | 2004-10-05 | 2006-04-13 | Adeka Corporation | Water-dispersed polyurethane composition |
| JP2020007400A (en) | 2018-07-03 | 2020-01-16 | 三菱ケミカル株式会社 | Polycarbonate diol and aqueous polyurethane dispersion using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220082328A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2504147C (en) | Polyurethane dispersion and articles prepared therefrom | |
| US7935752B2 (en) | Thermosetting resin composition and uses thereof | |
| TWI813549B (en) | polycarbodiimide copolymer | |
| KR101503987B1 (en) | Thermosetting composition | |
| JP7104456B1 (en) | A solvent for resin synthesis and a method for producing a synthetic resin using the solvent. | |
| WO2011004756A1 (en) | Thermosetting composition for protective film for wiring board | |
| EP1921101A1 (en) | Polyester polyol and polyurethane resin | |
| KR102497752B1 (en) | A coating composition for use of protecting a printed circuit board, comprising a water-dispersed polyurethane and the printed circuit board coated by the composition | |
| JP2009091414A (en) | Urea resin composition | |
| CN110225933A (en) | Aqueous polyurethane resin combination | |
| JP7375299B2 (en) | Curable imide resin, curable resin composition, method for producing curable imide resin, method for producing curable resin composition, cured product, and method for producing cured product | |
| KR102375536B1 (en) | Water dispersed polyurethane resin composition and the method preparing the same | |
| JP2023135166A (en) | polyurethane dispersion | |
| KR100764108B1 (en) | Water dispersed polyurethane for primer in lens coating and manufacturing methods thereof | |
| JP5756678B2 (en) | Light guide polyurethane resin and light guide member | |
| JP2013231897A (en) | Photosensitive resin composition, photosensitivity laminate, flexible circuit board, and perpetual pattern formation method | |
| KR100911174B1 (en) | Flame-retardant polyurethane composition for surface treatment and process for preparing thereof | |
| CN114080408B (en) | Cured product, overcoat film, and flexible wiring board | |
| JP2013231898A (en) | Photosensitive resin composition, photosensitivity laminate, flexible circuit board, and perpetual pattern formation method | |
| JP5346481B2 (en) | Urea urethane resin composition | |
| CN117136201A (en) | Curable composition and cured product thereof | |
| JP4599821B2 (en) | Ink and printed matter that can print fine patterns | |
| JP2021195377A (en) | Concrete protective material | |
| JP2023135164A (en) | polyurethane dispersion | |
| KR20240046263A (en) | Curable compositions and 3D-printed objects formed therefrom and methods of forming the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right |