Abstract:
The present invention relates to a curable polysiloxane composition for an optical device, an encapsulant obtained by curing the same, and an optical device including the encapsulant. The curable polysiloxane composition includes: at least one kind of a first polysiloxane compound presented by chemical formula 1; at least one kind of a second polysiloxane compound having hydrogen bound to silicon (Si-H) on an end thereof; and at least one kind of a third polysiloxane compound having an alkenyl group bound to silicon on an end thereof. [Chemical formula 1] (R^1R^2R^3SiO_1/2)_M1(R^4R^5SiO_2/2)_D1(R^6R^7SiO_2/2)_D2(R^8SiO_2/_2-Y^1-SiO_2/_2R^9)_D3(R^10SiO_3/_2)_T1(R^11SiO_3/_2)_T2(R^12SiO_3/_2)_T3(SiO_3/_2-Y^2-SiO_3/_2)_T4(SiO_4/_2)_Q1.
Abstract:
The present invention relates to: a curable polysiloxane composition for an optical device, the composition including at least one type of first siloxane compound represented by Chemical Formula 1 below, at least one type of second siloxane compound having silicon-bonded hydrogen (Si-H) on a terminal thereof, and at least one type of third siloxane compound having a silicon-bonded alkenyl group (Si-Vi) on a terminal thereof; an encapsulating material obtained by curing the curable polysiloxane composition for an optical device; and an optical device comprising the encapsulating material. According to an embodiment of the present invention, provided is the curable polysiloxane composition for an optical device which: has enhanced adhesion strength to adhere to a lower substrate; prevents gas and moisture from being entering; and thus can increase reliability.
Abstract:
PURPOSE: A positive type photosensitive composition is provided to improve physical properties and reliability of a membrane, and to boating excellent sensitivity, resolution, pattern formation, removal of residue, high elongation, high tensile strength, and low membrane shrinkage. CONSTITUTION: A phenol compound comprises one selected from a group consisting of a compound in chemical formula 1, a compound in chemical formula 2, and combinations thereof. A positive type photosensitive composition comprises 100.0 parts by weight of polybenzoxazole precursor, 5-100 parts by weight of a photosensitive diazoquinone compound, 1-30 parts by weight of a phenol compound, 0.1-30 parts by weight of a silane compound, and 50-300 parts by weight of a solvent. The polybenzoxazole precursor has the weight average molecular weight of 3,000-300,000.
Abstract:
PURPOSE: A conductive paste composition for a printed circuit board is provided to have excellent heat resistance and high adhesive force using a phenolic binder resin and to obtain superior flexibility, proper thixotropy, and high conductivity. CONSTITUTION: A conductive paste composition for a printed circuit board includes 50-90 weight% of a conductive material, 5-30 weight% of a phenolic resin, 0.1-10 weight% of a hardener, and a solvent. A method for manufacturing a double-sided flexible circuit board comprises: a step(S110) of printing the composition on one side of the flexible circuit board; a step(S120) of forming a hole on the flexible board requiring up-down electrical connection; and a step(S130) of coating the inner wall of the hole while printing the composition on the other side of the flexible board.
Abstract:
23℃, 대기압 하에서 Brookfield (DV-II+pro) 스핀들 52번을 사용하여 토오크(Torque)가 90% 일 때 측정한 점도가 4,000 내지 9,500 mPa·s이고, 형광체를 혼합하여 23℃에서 2 시간 이상 방치 시, 그 안에 포함되는 형광체의 침전율을 18% 이내로 억제하며, 말단에 규소 결합된 수소(Si-H)를 가지는 적어도 1종의 제1 실록산 화합물, 및 말단에 규소 결합된 알케닐 기(Si-Vi)를 가지는 적어도 1종의 제2 실록산 화합물을 포함하는 봉지재 조성물, 상기 조성물을 경화하여 얻어지는 봉지재, 및 상기 봉지재를 포함하는 전자 소자를 제공한다.