Abstract:
Provided are pre-expanded polypropylene resin particles having a dimensional expansion coefficient of 1.5% or more determined with a thermomechanical analyzer at a constant compressive load of 1 mg during heating from 30°C to 100°C at a temperature increase rate of 10°C/min. Using the pre-expanded polypropylene resin particles can yield an in-mold foam molded product of polypropylene resin having few wrinkles and small dimensional shrinkage without pretreatment such as internal pressure application or compression packing during packing the pre-expanded particles in a mold for in-mold foam molding.
Abstract:
Expanded composite polystyrene-based resin particles having a plurality of cells and cell membranes separating the plurality of cells, said cell membranes including a polystyrene-based resin forming a continuous phase and polyacrylic acid alkyl ester-based resin fine particles dispersed in said continuous phase to form a dispersed phase, and said polystyrene-based resin being complexed with said polyacrylic acid alkyl ester-based resin fine particles, wherein said dispersed phase is present in the form of a plurality of layers in a cell membrane thickness direction in a cell membrane cross-section of said expanded composite polystyrene-based resin particles.
Abstract:
Die Erfindung betrifft eine Wärmedämmplatte, insbesondere eine Wärmedämmplatte zur Wärmeisolation von Aussenfassaden, Sockelbereichen, Wänden, Decken, Dächern oder anderen Teilen von Gebäuden umfassend eine beschichtete Dämmplatte resp. Reflektorplatte aus expandiertem Polystyrol (EPS). Bereitgestellt werden soll eine Wärmedämmplatte, die einen verbesserten Dämmwert und mindestens eine Zusatzfunktion aufweist. Hierzu umfasst sie eine geschäumte Dämmplatte resp. Reflektorplatte und eine Deckschicht, wobei die Reflektorplatte einen hohen Anteil an atherman wirkenden Stoffen aufweist und/oder hochgeschäumt ist und die wesentliche Dämmwirkung erbringt. Die Deckschicht ist in Form einer dünnen Schaumschicht oder einer Perlendeckschicht ausgebildet.
Abstract:
Polypropylene resin expanded particles include: a polypropylene resin as a base material resin having at least two melting peaks on a DSC curve obtained by measurements of melting points using a DSC, the at least two melting peaks including (i) a lowest-temperature melting peak of 100 °C or more but 130 °C or less and (ii) a highest-temperature melting peak of 140 °C or more but 160 °C or less, so that the expanded particles: can produce an in-mold foaming molded product at a very low mold heating steam pressure; exhibit low distortion, low shrinkage, and a wide range of heating condition for molding, even if the mold heating steam pressure is increased; indicate a satisfactory moldability when the expanded particles are molded by using a mold having a complicated shape or a large mold; and maintain its properties such as compressive strength, without being impaired largely, when the expanded particles prepare the in-mold foaming molded product.
Abstract:
An absorbent master batch chip composition for a polystyrene foam tray of the present invention comprises: with respect to 100 parts by weight of basic polystyrene resin, 1-80 parts by weight of an organic anionic sulphonate; 1-75 parts by weight of calcium carbonate (CaCO 3 ); and 1-50 parts by weight of talc. The organic anionic sulphonate is secondary n-alkane sulphonates. The calcium carbonate has the role of a compatibilising agent for the uniform absorption and mixing of the organic anionic sulphonate and the talc has the role of a nucleating agent which ensures that cells are small and uniformly distributed during foaming. Master batch chips are produced by mixing the ingredients of the master batch chip composition in a super mixer such that organic anionic sulphonate is uniformly distributed id the basic resin, extruding from an extruder and then cutting into pellets.
Abstract:
A polycarbonate resin foamed molding having a density D of 0.6 g/cm 3 or less and at least 30 (kg·cm/cm 3 )/(g/cm 3 ) of a value E 80 /D obtained by dividing an amount of energy absorbed through 50 % compression of the molding at 80°C (E 80 kg·cm/cm 3 ) by the density of the molding. A shock absorber for a vehicle includes a core of the above molding, and a skin covering a surface of the core.
Abstract translation:密度D为0.6g / cm 3以下的聚碳酸酯树脂发泡成型体和至少30(kg·cm / cm 3·3)/(g / cm 3)的值为E80 / D 将成型体在80℃(E80kg·cm / cm 3)压缩50%时吸收的能量除以成型体的密度。 用于车辆的减震器包括上述模制品的芯和覆盖芯的表面的皮肤。
Abstract:
폴리에틸렌계수지와폴리스티렌계수지를포함하는복합수지입자로서, 상기폴리에틸렌계수지및 폴리스티렌계수지가이들수지의합계에대해, 각각 50∼20질량% 및 50∼80질량%의범위로포함되고, 상기폴리에틸렌계수지가 925∼965㎏/㎥의범위의중밀도내지고밀도의제1 폴리에틸렌계수지와, 직쇄상이며, 또한상기제1 폴리에틸렌계수지보다저밀도의제2 폴리에틸렌계수지로구성되고, 상기제1 폴리에틸렌계수지및 제2 폴리에틸렌계수지가이들수지의합계에대해, 각각 90∼30질량% 및 10∼70질량%의범위로포함되는복합수지입자.
Abstract:
이발명은지오폴리머복합체의제조방법에관한것이다. 또한, 지오폴리머복합체에관한것이고, 또지오폴리머, 불투열성첨가제와조합한지오폴리머또는지오폴리머복합체의팽창비닐중합체, 좋기로는비닐방향족중합체에서의용도에관한것이다. 또한, 이발명은팽창성비닐방향족중합체과립의제조방법과팽창성비닐방향족중합체과립에관한것이다. 마지막으로, 이발명은팽창비닐발포체, 좋기로는비닐방향족중합체에관한것이고, 그리고비닐중합체및 a), b) 또는 c)를포함하는마스터배치에관한것이다.