摘要:
The biaxially stretched film of the present invention comprises a polyamide resin composition (C) obtained by melt-kneading a smectite (B) with a polyamide (A) produced by the polycondensation of a diamine component containing 70 mol % or higher of m-xylylenediamine and a dicarboxylic acid component containing 70 mol % or higher of a C4-C20 α,ω-linear aliphatic dicarboxylic acid, or comprises at least one layer made of the polyamide resin composition (C). The polyamide resin composition (C) comprises the polyamide (A) in an amount of 80 to 99.9 parts by weight and the smectite (B) in an amount of 0.1 to 10 parts by weight. The layer made of the polyamide resin composition (C) has a relative peak intensity ratio of 60 or less. The relative peak intensity ratio is represented by the formula: B/A×100, wherein A and B are intensities of the strongest peak and the next stronger peak appearing in a diffraction angle 2θ ranging from 15° to 25° of a CuKα X-ray diffraction pattern of the layer made of the polyamide resin composition (C), provided that A is the peak intensity of the peak at a lower angle and B is the peak intensity of the peak at a higher angle.
摘要:
The fuel-barrier polyamide resin of the present invention is a product of the polycondensation of a diamine component comprising 70 mol % or higher of m-xylylenediamine and a dicarboxylic acid component comprising 70 mol % or higher of a mixed dicarboxylic acid which comprises a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and at least one dicarboxylic acid selected from the group consisting of isophthalic acid and naphthalenedicarboxylic acid in a molar ratio of 30:70 to 95:5. The polyamide resin is excellent in not only fuel-barrier property and heat resistance, but also moldability and recyclability, and therefore suitably used as a barrier material of fuel containers.
摘要:
The polyamide resin composition of the present invention comprises a polyamide resin and a smectite treated with an organic swelling agent. The polyamide resin is produced by the polycondensation of a diamine component containing 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component containing 70 mol % or more of a straight-chain, aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms, and meets requirement of (1) a terminal amino concentration of less than 60 μeq/g and/or (2) a reaction molar ratio of less than 1.0 when defined by a molar ratio of reacted diamine to reacted dicarboxylic acid.
摘要:
Provided is a windable thin single layer film comprising a xylylenediamine-based polyamide resin.A polyamide resin film comprising a polyamide resin (C) obtained by polycondensing a diamine structural unit of which 70 mol % or more is derived from xylylenediamine (A) with a dicarboxylic acid (B), wherein the film has a thickness of 10 to 50 μm and is textured on the surface.
摘要:
Disclosed is an m-xylene group-containing polyamide resin composition having excellent gas barrier properties and heat aging resistance, which contains (A) a polyamide composed of a diamine unit containing 30% by mole or more of an m-xylylenediamine unit and a dicarboxylic acid unit and (B) an aromatic secondary amine based compound and has an oxygen permeability coefficient of not more than 1 cc·mm/m2·day·atm at 23° C. and 75% RH.
摘要翻译:公开了具有优异的阻气性和耐热老化性的含间二甲苯基团的聚酰胺树脂组合物,其包含(A)由含有30摩尔%以上的间苯二甲苯单元和二羧酸的二胺单元组成的聚酰胺 酸性单元和(B)芳族仲胺类化合物,并且在23℃和75%RH下的氧气渗透系数不大于1cc·mm / m 2·天·atm。
摘要:
Disclosed is a polyamide resin composition having excellent gas barrier properties and heat aging resistance, which contains (A) a polyamide composed of a diamine unit containing a 1,3-bis(aminomethyl)cyclohexane unit and a dicarboxylic unit and at least either of (B) an aromatic secondary amine based compound and (D) a phenol based antioxidant and has an oxygen permeability coefficient of not more than 1.5 cc·mm/m2·day·atm at 23° C. and 75% RH.
摘要翻译:公开了一种具有优异的阻气性和耐热老化性的聚酰胺树脂组合物,其包含(A)由含有1,3-双(氨基甲基)环己烷单元和二羧酸单元的二胺单元组成的聚酰胺和( B)芳族仲胺类化合物和(D)苯酚类抗氧化剂,在23℃,75%RH下的透氧系数为1.5cc·mm / m 2·天·atm以下。
摘要:
In the process of the present invention, a polyamide A1 and an organized clay B are mixed mainly by dispersive mixing, and after added with a polyamide A2, mixed mainly by distributive mixing in a corotating intermeshing twin-screw extruder so designed as to effect the dispersive mixing and the distributive mixing. The organized clay B is completely and finely dispersed and distributed throughout the resultant polyamide composite material. Shaped articles such as films and sheets made of the polyamide composite material exhibit excellent gas barrier properties and transparency with little malodor mainly attributable to the decomposed products of the organizing agent for preparing the organized clay B.
摘要:
A resin composition comprising melt blending a polyamide resin such as nylon MXD6 with a polyphenoxy resin. The polyamide resin and the polyphenoxy resin may be combined prior to or after melting and can be sandwiched between two PET layers in a perform mold to form an article capable of blow molding to form a container with improved delamination resistance. Also, intercalated layered materials are prepared by co-intercalation of an onium ion, an aromatic polyamide oligomer or polymer, e.g., nylon MXD6, and a polyphenoxy oligomer or polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The co-intercalated layered materials are combined with the aromatic polyamide and polyphenoxy resin to form a nanocomposite composition for sandwiching between PET layers to form containers having improved delamination resistance.
摘要:
The present invention relates to a mold for a multi-layer container. The mold includes a cold-half portion containing a cavity, and a hot-half portion containing a first resin flow path for connecting an interior of a first injection cylinder to the cavity, a second resin flow path for connecting an interior of a second injection cylinder to the cavity, and a junction portion of the first resin flow path and the second resin flow path. The junction portion in the hot-half portion is positioned upstream of a gate portion opened to the cavity included in the cold-half portion, the second resin flow path contains an inhibitor for partially inhibiting a resin flow.
摘要:
Provided is a thin-wall article formed from a polyamide resin which can be stably produced with little variation in mechanical properties such as flexural strength, flexural modulus and impact resistance. A thin-wall article formed by molding a polyamide resin (C) obtained by polycondensing a diamine (A) and a dicarboxylic acid (B) or a polyamide resin composition containing the polyamide resin, wherein 70 mol % or more of a diamine structural unit is derived from xylylenediamine and the polyamide resin has a melt viscosity (i) of 50 to 200 Pa·s as measured at a temperature of the melting point plus 10° C. for a holding time of 6 minutes at a shear rate of 122 sec−1.