Abstract:
본 발명은 연료전지용 복합체 전해질막에 관한 것으로서, 폴리벤즈이미다졸 계 고분자; 및 금속 그래프팅 다공성 구조체를 포함하며, 인산으로 도핑된 연료전 지용 복합체 전해질막으로서, 상기 금속 함유 다공성 구조체의 함량은 상기 고분자 를 기준으로 0.1 내지 30 중량%인 것이 특징이며, 이에 따라 열적 특성 및 양성자 전도성이 우수한 연료전지 전해질막을 제공할 수 있다.
Abstract:
본 발명은 이미드 올리고머, 그 제조방법 및 상기 이미드 올리고머의 가교반응을 통해서 제조된 폴리이미드 박막에 관한 것으로서, 더욱 구체적으로는, 하기 화학식 1로 표시되는 이미드 올리고머, 그 제조방법 및 상기 이미드 올리고머의 가교반응을 통해서 제조된 폴리이미드 박막에 관한 것이다:
상기 식에서, 상기 Ar는, , , , , 또는 이고; 상기 Ar'는, , , 또는 이고; X는 말단기로서, , , 또는 이며; N은 1 내지 20의 정수이다. 본 발명에 따른 이미드 올리고머는 미세 전자 소자용 박막 및 박막형 패키지용 언더필러 (under-filler) 절연재료로서 저점성 등과 같은 고기능 특성을 가지며, 특히 본 발명에 따르면, 이미드 올리고머의 분자량을 조절함으로써 고분자 기능성 절연소재로서의 특성상 유동성을 높이고, 가교형 말단기 도입으로 고내열성과 내화학성이 뛰어난 가교형 폴리이미드를 제조할 수 있다. 또한, 본 발명에 따른 폴리이미드 박막은 유기 용매인 NMP, THF, DMSO, DMAc 등에 대해서 탁월한 용해성을 보임에 따라, 공정상에서 직접 스핀코팅 후 낮은 공정온도(200-300℃)를 통해 박막형 패키지 및 전자소자에 적용할 수 있으며, 또한 기존 폴리이미드 공정시 발생하는 수분을 포함한 반응 부산물을 원천적으로 제거할 수 있고, 제품의 안정성이 매우 높아 장기보관성의 향상을 꾀할 수 있어 반도체 및 전자소자 공정의 신뢰성과 안정성 향상에 기여할 수 있다. 이미드 올리고머, 폴리이미드 박막, 용해성, 분자량 조절
Abstract:
PURPOSE: A novel polyamideimide resin using an aromatic dicarboxylic acid, its preparation method and a highly heat resisting structure material using the resin are provided, where the resin is improved in the processability, has good heat resistance and insulating property and is soluble even in a low polar solvent. CONSTITUTION: The polyamideimide resin is represented by the formula; and has a number mean molecular weight of 2x10¬4 to 8x10¬4 g/mol. The method comprises the step of polymerizing an aromatic dicarboxylic acid and the aromatic diamine represented by the formula H2N-Ar-NH2 in the molar ratio of 1 : 0.5-2. Preferably the aromatic dicarboxylic acid is 1,5-bis(trimellitimido)-2,4,6-trimethylbenzene; and the aromatic diamine is 1,4-phenylene dianiline, 2,4-diamino mesitylene, 2,2'-dimethyl-4,4'-diaminobiphenyl or 2,2'-bis(trifluoromethyl)-4,4-diaminobiphenyl. The highly heat resisting structure material is obtained by coating a structure material with the polyamideimide resin.
Abstract:
PURPOSE: Provided is an insulating polyimide copolymer used as an adhesion material for a package of a fine electronic element, which can control stress properties according to the property of each substrate. CONSTITUTION: The insulating polyimide copolymer is produced by preparing a polyamic acid by using 1,2,4,5-benztetracarboxylic dianhydride(PMDA) of formula 1, bisphenyl tetracarboxyphenyl dianhydride(BPDA) of formula 2, and 1,4-phenylene diamine(PDA) of formula 3 as monomers and then performing a thermal imidation. In the preparation of the polyimide copolymer by the thermal imidation, the property of a thin film is changed according to the condition of the process.
Abstract:
PURPOSE: Provided is a method for preparing a low viscosity and high capability imide oligomer having an excellent property as under-filler insulating material for thin film in microelectronic device or thin film package. CONSTITUTION: The method comprises introducing a crosslinking terminal group into imide oligomer to synthesize a thermosetting polyimide. A thermosetting polyimide obtained by the method has an excellent property as under-filler for the production of microelectronic device. The polyimide has an excellent solubility in NMP, THF, DMSO, DMAc, and etc., which are organic solvents and can be used in thin film package and electronic device. Also, the polyimide has excellent electric, chemical and mechanical properties.
Abstract:
본발명은나노다공성마이크로구형의폴리이미드에어로젤및 이의제조방법에관한것이다. 본발명의일실시예에따른폴리이미드에어로젤제조방법을이용하면, 저온공정으로제조가가능하여기존의제조방법에비해시간과에너지를절약할수 있고, 제작단가를줄일수 있으며, 나노크기의기공을가지면서화학안정성, 단열및 흡ㆍ탈착특성이뛰어난마이크로크기의균일한입자인구형의폴리이미드에어로젤을제조할수 있다. 상기구형의폴리이미드에어로젤은뛰어난물리적특성으로인하여단열재, 약물전달매체, 촉매담지체등 다양한분야에적용될수 있다.
Abstract:
PURPOSE: An LED lighting device is provided to improve the lifespan of a LED lamp by improving heat dissipation efficiency. CONSTITUTION: A light emitting diode lamp is fixed to a body member(120). A light transmission member is included in the front of the body member. The light transmission member transmits light. A case member(140) comprises a penetration part and an overhang part(144). A base(150) is connected to the wiring for the lighting of the light emitting diode lamp. An elastic hooking member(160) is biased in the wall.
Abstract:
A lighting apparatus using an LED(Light Emitting Diode) lamp is provided to reduce the number of components in comparison with a conventional halogen lamp and prevent damage of surfaces of goods displayed in a showroom. A lighting apparatus using an LED lamp(32) includes a socket(10), a transparent window(20), a lamp fixing unit(30), and a finish cap(40). The socket has a holding unit(12) on a front circumference and a through unit(14) at a center. The transparent window is inserted into a front of the through unit of the socket to transmit light. The LED lamp is turned on when receiving power through an electric wire(2) and fixed to the lamp fixing unit. The finish cap receives the lamp fixing unit and is coupled with a rear end of the socket.
Abstract:
An LED(Light Emitting Diode) lighting apparatus is provided to illuminate a wider area by installing a bar type lamp body with a plurality of LEDs to be rotatable in four directions and movable in a transverse direction. An LED lighting apparatus includes a supporting post(200), a bar type lamp body(400), and a circuit board. The supporting post has a fixing unit to be fixed on a fixed object. The bar type lamp body is horizontally arranged on an upper end of the supporting post by a connecting member(300) to be movable vertically and has a depressed receiving unit on one surface and a light transmitting plate(430) at an inlet of the receiving unit. The circuit board is arranged in the receiving unit of the lamp body and has a plurality of LEDs(550) at regular intervals in a longitudinal direction.