Abstract:
본 발명은 UV 중합형 아크릴계 점착제에 관한 것으로서, 보다 상세하게는 유리전이온도가 다른 아크릴계 점착제와 점착부여수지인 로진메타아크릴레이트를 혼합하고 UV 조사를 통하여 경화시킨 UV 중합형 아크릴계 점착제에 관한 것이다. UV 중합형 아크릴계 점착제는, (a) 로진과 글리시딜 메타아크릴레이트를 촉매 존재 하에서 중합하여 로진메타아크릴레이트를 제조하는 단계; (b) 2-에틸헥실아크릴레이트, 아크릴산, 및 비닐아세테이트를 중합하여 아크릴계 점착제를 제조하는 단계; (c) 상기 로진메타아크릴레이트, 상기 아크릴계 점착제 및 광개시제를 혼합하는 단계; 및 (d) 상기 혼합물에 UV를 조사하여 중합시키는 단계를 포함하는 제조방법으로 제조된다. UV 중합, 아크릴계 점착제, 로진, 로진메타아크릴레이트
Abstract:
An epoxy acrylic adhesive is provided to improve shear strength while increasing initial tackiness and adhesion due to anchoring effect caused by a tackifier. A method for preparing an epoxy acrylic adhesive containing a rosin ester tackifier, comprises a step for synthesizing an acrylate polymer including an epoxy functional group; a step for blending the polymer and a rosin ester tackifier; and a step for thermal-processing the blended mixture. The step for synthesizing an acrylate polymer including an epoxy functional group is the solution polymerization of 2-ethylhexyl acrylate, butyl acrylate and glycidyl methacrylate. The thermal processing step is progressed at a temperature of 50-170 °C.
Abstract:
PURPOSE: A multilayer dioxide electrode for a dye-sensitized solar cell, a manufacturing method thereof, and the dye-sensitized solar cell are provided to increase an amount of light currents by increasing an amount of dye absorption by a high pore structure. CONSTITUTION: A multilayer dioxide electrode for a dye-sensitized solar cell is formed on a transparent conductive substrate. A light sensitive dye layer is absorbed in a surface facing the transparent conductive substrate. The multilayer dioxide electrode for the dye-sensitized solar cell includes a titanium dioxide deposition layer and a mesopore titanium dioxide particle coating layer. The mesopore titanium dioxide particle coating layer is stacked on the deposition layer.
Abstract:
본 발명은 UV 중합형 아크릴계 점착제에 관한 것으로서, 보다 상세하게는 유리전이온도가 다른 아크릴계 점착제와 점착부여수지인 로진메타아크릴레이트를 혼합하고 UV 조사를 통하여 경화시킨 UV 중합형 아크릴계 점착제에 관한 것이다. UV 중합형 아크릴계 점착제는, (a) 로진과 글리시딜 메타아크릴레이트를 촉매 존재 하에서 중합하여 로진메타아크릴레이트를 제조하는 단계; (b) 2-에틸헥실아크릴레이트, 아크릴산, 및 비닐아세테이트를 중합하여 아크릴계 점착제를 제조하는 단계; (c) 상기 로진메타아크릴레이트, 상기 아크릴계 점착제 및 광개시제를 혼합하는 단계; 및 (d) 상기 혼합물에 UV를 조사하여 중합시키는 단계를 포함하는 제조방법으로 제조된다. UV 중합, 아크릴계 점착제, 로진, 로진메타아크릴레이트
Abstract:
A method for manufacturing self-curing epoxy functionalized acrylic pressure-sensitive adhesives is provided to obtain epoxy functionalized acrylic pressure-sensitive adhesives with excellent adhesive strength through only heat treatment without using a crosslinking agent. A method for manufacturing self-curing epoxy functionalized acrylic pressure-sensitive adhesives comprises (a) a step for manufacturing a copolymer precursor by adding azobisbutyronitrile to the mixture containing 2-ethylhexylacrylate, butylacrylate, glycidyl methacrylate and acrylic acid; (b) a step for manufacturing a copolymer by reacting the copolymer precursor at 50~70 °C for 30 minutes to 2hours; and (c) a step for drying the copolymer and self-curing it at 70~170 °C for 20-40 minutes.
Abstract:
A loess finishing material is provided to contain neither formaldehyde nor organic solvent, to suppress the occurrence of a bad smell during/after construction, to emit far infrared rays, and to improve worker's workability. A loess finishing material using a two-solution type water-borne adhesive includes (A) a water-borne adhesive base material, (B) a hardener containing an isocyanate compound having an NCO content of 25-35%, (C) an inorganic filler, (D) a loess powder, and (E) water. The water-borne adhesive base material contains (i) 20-100 parts by weight of rubber latex or emulsion resin, (ii) 5-50 parts by weight of an OH group-containing polymer aqueous solution or emulsion, (iii) 5-100 parts by weight of an inorganic filler, and (D) 1-20 parts by weight of an additive. Further, the emulsion resin is one or more selected from water-soluble acrylic resin, ethylene vinylacetate, polyvinylchloride, polyvinylacetate, poly butadiene, poly vinylidene and polyurethane.
Abstract:
A method for preparing a UV and thermal curing adhesive for a liquid crystal display panel is provided to reduce the contamination of liquid crystal by controlling the content of the unreacted epoxy resin. A method for preparing a UV and thermal curing adhesive for a liquid crystal display panel comprises the steps of adding a catalyst to an epoxy resin and heating it to 70 deg.C to dissolve the catalyst, thereby preparing an epoxy resin composition; adding 0.2-1.0 mol% of acrylic acid with respect to the content of the epoxy resin drop by drop at 80 deg.C to prepare an epoxy acrylate oligomer; and adding a reactive diluent, a photoinitiator, a latent curing agent and an inorganic filler to the epoxy acrylate oligomer to prepare a UV and thermal curing adhesive, wherein the content of the latent curing agent with respect to the weight of the epoxy acrylate oligomer is controlled to allow the gel fraction to be 75 % or more when the adhesive is cured with the irradiation of UV rays of 1,500 mJ/cm^2 and with the heat of 120 deg.C for 1 hour.
Abstract translation:提供一种制备用于液晶显示面板的UV和热固化粘合剂的方法,通过控制未反应的环氧树脂的含量来减少液晶的污染。 一种制备用于液晶显示面板的UV和热固化粘合剂的方法包括以下步骤:向环氧树脂中加入催化剂并将其加热至70℃以溶解催化剂,从而制备环氧树脂组合物; 相对于环氧树脂的含量,在80℃下滴加0.2-1.0mol%丙烯酸,制备环氧丙烯酸酯低聚物; 并向环氧丙烯酸酯低聚物中加入反应性稀释剂,光引发剂,潜在性固化剂和无机填料以制备UV和热固化粘合剂,其中潜在固化剂相对于环氧丙烯酸酯低聚物重量的含量为 当照射1500mJ / cm 2的UV射线和120℃的热量固化粘合剂1小时时,控制凝胶分数为75%或更高。
Abstract:
본 발명은 유리전이온도가 향상된 아크릴 점착제 제조단계; 삼관능성 모노머 및 개시제 투여단계; 및 UV 조사단계로, 구성된 semi-IPN 구조 형성에 의한 UV 경화형 아크릴 점착제 점착물성 개선방법에 관한 것으로, 본 발명에 의한 점착제 가교방법 및 응용을 이용하여 종래 아크릴 점착제의 취약점인 내열성이 크게 개선된 아크릴계 점착제의 제조가 가능하여 경화시간을 획기적으로 단축하여 생산성을 높일 수 있고 종래에 고내열성이 요구되는 접합부위에 사용되어온 고가의 실리콘계 점착제를 대체할 수 있는 장점이 있다. 아크릴 점착제, semi-IPN
Abstract:
A method for improving physical properties of UV-crosslinkable acrylic pressure-sensitive adhesives by forming a semi-IPN is provided to produce acrylic adhesives that have improved heat resistance and increase productivity owing to shortened curing time thereof. A method for improving physical properties of UV-crosslinkable acrylic pressure-sensitive adhesives by forming a semi-interpenetrating polymer network comprises the steps of: preparing an acrylic pressure-sensitive adhesive having improved glass transition temperature; thereto adding a trifunctional monomer and an initiator; and irradiating the mixture with ultraviolet rays. In the step of preparing an acrylic pressure-sensitive adhesive, 5-15wt% of acrylic acid is added to improve physical properties, especially glass transition temperature.