Abstract:
Disclosed is an adhesive composition (I) characterized by containing a polyurethane polyurea resin (A) having a weight average molecular weight of 80,000-250,000 and an acid number of 3-25 mgKOH/g and an epoxy resin (B). The polyurethane polyurea resin (A) is obtained by reacting a urethane prepolymer (d) having an isocyanate group, a polyamino compound (e) and a monoamino compound (f) under the conditions stated below. The urethane prepolymer (d) having an isocyanate group is obtained by reacting a polyol compound (a), an organic diisocyanate (b) and a diol compound (c) having a carboxyl group. (i) The ratio between isocyanate groups of the urethane prepolymer (d) having an isocyanate group and amino groups of the polyamino compound (e) and the monoamino compound (f), namely amino groups/isocyanate groups is from 0.8/1 to 0.999/1 (molar ratio). (ii) The ratio of amino groups of the polyamino compound (e) in the 100 mol% of the total of the amino groups of the polyamide compound (e) and the amino groups of the monoamino compound (f) is 90.0-97.0 mol%.
Abstract:
An electromagnetic-wave-shielding adhesive film which comprises a base film and a curable conductive adhesive layer (I), wherein the curable conductive adhesive layer (I) comprises: a polyurethane-polyurea resin (A) prepared by reacting a polyamino compound (e) with a urethane prepolymer (d) having an isocyanate group at an end and obtained by reacting a carboxylated diol compound (a), a polyol (b) which has a number-average molecular weight of 500-8,000 and is not a carboxylated diol compound, and an organic diisocyanate (c); an epoxy resin (B) having two or more epoxy groups; and a conductive filler.
Abstract:
폴리올 화합물(a), 유기 디이소시아네이트(b) 및 카르복실기를 갖는 디올 화합물(c)을 반응시켜 얻어지는 이소시아네이트기를 갖는 우레탄 프리폴리머(d)와, 폴리아미노 화합물(e) 및 모노아미노 화합물(f)을 하기의 조건으로 반응시켜 얻어지는, 중량 평균분자량이 80,000~250,000이고, 산가가 3~25 ㎎KOH/g인 폴리우레탄 폴리우레아 수지(A)와 에폭시 수지(B)를 함유하는 것을 특징으로 하는 접착제 조성물(I)을 개시한다. 여기에, (i) 이소시아네이트기를 갖는 우레탄 프리폴리머(d)의 이소시아네이트기와, 폴리아미노 화합물(e) 및 모노아미노 화합물(f)의 아미노기와의 비율이, 아미노기/이소시아네이트기=0.8/1~0.999/1(몰비)이고, 또한 (ii) 폴리아미노 화합물(e)의 아미노기와 모노아미노 화합물(f)의 아미노기와의 합계 100 몰% 중, 폴리아미노 화합물(e)의 아미노기의 비율이 90.0~97.0 몰%이다.
Abstract:
PURPOSE: An electromagnetic wave shielding film and a wiring board are provided to reduce the amount of conductive fillers using silver powder of a flake shape. CONSTITUTION: An electromagnetic wave shielding film includes an insulation layer and a conductive layer. An electromagnetic wave shield property at 1GHz is 40~90dB based on the KEC method. The conductive layer comprises silver powder of a flake shape. Diameters of 50% particles are between 1 and 20 micro meters wherein the 50% particles of the silver powder are measured by a laser diffraction method. Volume density of the silver powder is between 0.2g/cm^3 and 0.7g/cm^3. The silver powder has a 30 to 60 weight% to the entire weight part of the conductive layer. The thickness of the conductive layer is between 2 and 10 micro meters.
Abstract translation:目的:提供电磁波屏蔽膜和布线板以减少使用片状银粉的导电填料的量。 构成:电磁波屏蔽膜包括绝缘层和导电层。 基于KEC方法,1GHz的电磁波屏蔽性能为40〜90dB。 导电层包括片状银粉末。 50%颗粒的直径在1到20微米之间,其中银粉末的50%颗粒通过激光衍射法测量。 银粉的体积密度在0.2g / cm 3和0.7g / cm 3之间。 该银粉末与导电层的整个重量部分相比为30至60重量%。 导电层的厚度在2和10微米之间。
Abstract:
Disclosed is a photosensitive resin composition containing a carboxyl group-containing photosensitive urethane resin (A), a photopolymerization initiator (B) and a photosensitive ethylenically unsaturated group-containing compound (C). This photosensitive resin composition is characterized in that the carboxyl group-containing photosensitive urethane resin (A) is a resin obtained by reacting a hydroxy group in a hydroxy group-containing urethane prepolymer (c) with an acid anhydride group in an acid anhydride group-containing compound (d). The hydroxy group-containing urethane prepolymer (c) is obtained by reacting a carboxyl group in a carboxyl group-containing urethane prepolymer (a), which is obtained by reacting a polymer polyol (e), a carboxylic acid compound (f) having two hydroxy groups in a molecule and a diisocyanate compound (g) as essential ingredients, with an epoxy group or an oxethane group in a compound (b) having an epoxy group or an oxethane group and an ethylenically unsaturated group. This photosensitive resin composition is excellent in sensitivity to an active energy ray and enables to form a fine pattern. A cured coating film of the photosensitive resin composition is excellent in flexibility, insulating property, adhesion, solder heat resistance, coating film resistance and flame retardance, and is thus suitably used for a photosolder resist.
Abstract:
An electromagnetic-wave-shielding adhesive film which comprises a base film and a curable conductive adhesive layer (I), wherein the curable conductive adhesive layer (I) comprises: a polyurethane-polyurea resin (A) prepared by reacting a polyamino compound (e) with a urethane prepolymer (d) having an isocyanate group at an end and obtained by reacting a carboxylated diol compound (a), a polyol (b) which has a number-average molecular weight of 500-8,000 and is not a carboxylated diol compound, and an organic diisocyanate (c); an epoxy resin (B) having two or more epoxy groups; and a conductive filler.