Abstract:
Disclosed is a thermoplastic resin composition containing a graft material and an organic peroxide group dispersion medium in which the graft material is dispersed. The graft material is obtained by melt-mixing a metal oxide fine particle having an organic peroxide group on the surface and a thermoplastic resin, and has a structure in which the thermoplastic resin is grafted to the metal oxide fine particle. The organic peroxide group on the surface of the metal oxide fine particle is preferably a peroxymonocarbonate group. The organic peroxide group on the surface of the metal oxide fine particle is preferably obtained by reacting a hydroxy group of a silicon oxide fine particle with an amino-modified silane coupling agent, thereby introducing an amino group to the surface of the silicon oxide fine particle, and then reacting the amino group with a compound having an ethylenically unsaturated group and an organic peroxide group.
Abstract:
The invention relates to proton-conducting composites comprising a polymer matrix within which inorganic particles are dispersed, grafted to the surface of which particles are polymers comprising repeat units that comprise at least one acid proton-exchange group, optionally in the form of salts, or a precursor group of said acid group, said particles being chosen from particles of zeolites, of zirconium phosphates or phosphonates, or of oxides. Application to the field of fuel cells.
Abstract:
A method for producing a resin composition, including the steps of melt-kneading a raw material A containing a polylactic acid resin, a crystal nucleating agent, and a plasticizer containing an ester compound formed between a polycarboxylic acid having a hydrocarbon group having 1 to 7 carbon atoms and a mono-alcohol having a hydrocarbon group having 1 to 7 carbon atoms, to prepare a polylactic acid-containing melt-kneaded mixture having a relative crystallinity of 70% or more (step A); and further melt-kneading the polylactic acid-containing melt-kneaded mixture obtained by the step A and a raw material B containing a polypropylene resin and a compatibilizing agent (step B). The resin composition obtainable by the method of the present invention can be suitably used in various industrial applications, such as daily sundries, household electric appliance parts, and automobile parts.
Abstract:
The present invention provides a semiconductive polymer composition having (a) from 30 to 90 wt % of a polymer component, (b) from 10 to 60 wt % of carbon black and (c) from 0 to 8 wt % additives, based on the total semiconductive polymer composition, and wherein the composition comprises less than 23 particles per m2 having a width of larger than 150 μm at the half height of a particle protruding from the surface of the tape sample, less than 10 particles per m2 having a width of larger than 200 μm at the half height of a particle protruding from the surface of the tape sample, and preferably, about 0 particles per m2 having a width of larger than 500 μm at the half height of a particle protruding from the surface of the tape sample.
Abstract:
The present invention provides a method of preparing a transparent polymer material, the method comprising steps i) and ii) in any order, the steps consisting in: i) mixing: mineral nanoparticles having a form factor strictly greater than 1.0; and a polymer matrix comprising a quantity of at least 80% by weight of a polycarbonate (PC) first thermoplastic polymer and of a second transparent thermoplastic polymer other than the first thermoplastic polymer, in order to obtain a mixture; and ii) heating the polymer matrix to the molten state, on its own or in the mixture; to obtain the transparent, polymer material, the mixture of step i) comprising a quantity of mineral nanoparticles having a form factor strictly greater than 1.0 that is strictly less than 5% by weight.
Abstract:
There is provided a polycarbonate resin composition containing aluminum oxide nanoparticles and being capable of showing good moldability and retention heat stability and combining high transparency and dimensional stability with excellent mechanical properties. The polycarbonate resin composition is characterized by containing an organic acid and aluminum oxide and in that: the resin composition has a melt mass flow rate of 11 g/10 min or higher as measured according to JIS K 7210 under the conditions of a temperature of 280° C., a nominal load of 2.16 Kg and a nozzle dimension L/D of 8/2; and a No. 2 dumbbell-shaped specimen according to JIS K 7113 formed by heat-press molding the resin composition into a film of 0.2 mm in thickness and cutting the film has a breaking stress of 8 MPa or higher as measured under the conditions of a temperature of 23° C., a humidity of 50% RH and a tensile rate of 50 mm/min. The organic acid is preferably an organic sulfonic acid having a carbon number of 8 or greater, more preferably the one containing an aromatic ring in the molecule.
Abstract translation:提供含有氧化铝纳米颗粒的聚碳酸酯树脂组合物,并且能够显示出良好的成型性和保持热稳定性,并且结合高透明度和尺寸稳定性以及优异的机械性能。 聚碳酸酯树脂组合物的特征在于含有有机酸和氧化铝,其中:树脂组合物在温度为280℃的条件下,根据JIS K 7210测定的熔体质量流量为11g / 10min以上 公称负荷2.16千克,喷嘴尺寸L / D为8/2; 和根据JIS K 7113的2号哑铃形样品通过将树脂组合物热压成型为0.2mm厚的膜而形成,并且切割该膜的断裂应力为8MPa以上, 温度为23℃,湿度为50%RH,拉伸速度为50mm / min。 有机酸优选为碳数为8以上的有机磺酸,更优选分子中含有芳香环的有机磺酸。
Abstract:
The present invention provides a method for producing a liquid crystal polyester composition, the method comprising feeding a liquid crystal polyester and a polyhydric alcohol fatty acid ester into an extruder having a vent portion, followed by melt-kneading in a state where the degree of decompression of the vent portion is −0.06 MPa or less in terms of a gauge pressure. The composition obtained by the method can provide a molded article having a thin wall portion and complicated shape.
Abstract:
The present invention relates to a method for producing a conductive masterbatch containing a polyamide resin and a carbonaceous filler. The present invention provides a method for producing a conductive masterbatch which can suppress an increase in resin temperature during extrusion, formation of die drips, and strand breakage and can also significantly increase the output of extruding. The method is achieved by the steps of feeding the carbonaceous filler to a molten first polyamide to melt-knead them together and then feeding a second polyamide to the resulting melt-kneaded product to further melt-knead the second polyamide, the carbonaceous filler, and the first polyamide.
Abstract:
The present invention provides a method of preparing a transparent polymer material, the method comprising steps i) and ii) in any order, the steps consisting in: i) mixing: mineral nanoparticles having a form factor strictly greater than 1.0; and a polymer matrix comprising a quantity of at least 80% by weight of a polycarbonate (PC) first thermoplastic polymer and of a second transparent thermoplastic polymer other than the first thermoplastic polymer, in order to obtain a mixture; and ii) heating the polymer matrix to the molten state, on its own or in the mixture; to obtain the transparent, polymer material, the mixture of step i) comprising a quantity of mineral nanoparticles having a form factor strictly greater than 1.0 that is strictly less than 5% by weight.
Abstract:
A method for manufacturing black plastic article capable of transmitting infrared ray, which includes mixing a black colorant, produced by mixing several transparent colorants of different color, into a transparent resin used as support, and processing the resulting mixture to manufacture a black plastic article. Said black plastic article is capable of absorbing visible light and transmitting infrared ray, and may be used in combination with an infrared region-sensitive CCD camera. The infrared region-sensitive CCD camera can take photos of the subject in a long distance through the black plastic article, if sufficient infrared ray from a subject may penetrate the black plastic article.