摘要:
A styrene-based resin composition comprising (A) a styrene-based polymer and (B) a rubber-like polymer dispersed in the styrene-based polymer. The dispersed particles of the rubber-like polymer comprise a styrene-butadiene-based block copolymer comprising 5 to 95% by weight of a conventional diblock-type polymer and 95 to 5% by weight of a tapered block-type polymer, wherein the butadiene unit content of the styrene-butadiene-based block copolymer is 6 to 16% by weight, based on the weight of the composition. The particles have a weight ratio of gel content to rubber-like polymer of 1.1:1 to 4.0:1 and have a swelling index of 5 to 20. The particles have an area average diameter of 0.1 to 0.9 .mu.m, with a ratio of area particle diameter to number average particle diameter of 1.0 to 1.8. The styrene-based resin composition has a high Izod impact strength and a high drop-weight impact strength, and further has excellent gloss and stiffness properties.
摘要:
A rubber-modified styrene-based resin composition comprising (A) 70 to 92% by weight of a styrene-based polymer and 30 to 8% by weight of a rubbery polymer wherein the rubbery polymer is dispersed in the styrene-based polymer in the form of particles having an occlusion structure with a plane of symmetry, an area average particle diameter of 0.1 to 0.7 .mu.m, and a ratio of area average particle diameter to number average particle diameter of 1.0 to 2.5, the weight ratio of gel content to rubbery polymer is 1.1:1 to 4.0:1, and the swelling index is 5 to 20. The styrene-based resin composition has excellent physical properties and can be used as a material for office automation equipment, home electric appliances, sheets and so on.
摘要:
The rubber-modified styrene-based resin composition, which is a composite of a styrene-based resin as a continuum of the matrix phase and a diene-based rubbery polymer as a dispersed particulate phase in the matrix, is characterized by the parameters including an average particle diameter of the particles of the rubbery polymer in the range from 0.08 to 1.00 .mu.m, peripheral parameter thereof in the range from 0.1 to 2.5 (.mu.m).sup.-1. (% by weight).sup.-1 and relaxation time T.sub.2 thereof in the range from 300 to 2000 .mu. seconds as the determinant factors of the moldability of the resin composition as well as the impact strength and surface gloss of the shaped articles prepared from the composition.
摘要:
Provided is a polycarbonate resin composition having high rigidity, high flowability, high heat resistance, and excellent flame retardancy and molded articles with good appearance using the polycarbonate resin composition. The polycarbonate resin composition comprises 4 to 50 parts by mass of a nonmetallic inorganic filler (B) and 0.01 to 1 part by mass of a phosphate compound (C) relative to 100 parts by mass of a resin mixture (A) which is composed of 60 to 97% by mass of an aromatic polycarbonate resin (a-1) and 40 to 3% by mass of a fatty acid polyester (a-2).
摘要:
Provided is a polyarylene sulfide resin composition for sealing electronic parts, which comprises (A) from 20 to 35% by weight of a polyarylene sulfide resin, (B) from 60 to 75% by weight of silica, and (C) from 1 to 10% by weight of an elastomer, and contains (D) from 0.05 to 1.2 parts by weight of an epoxysilane and/or (E) from 0.1 to 3 parts by weight of an epoxy resin, both relative to 100 parts by weight of the total amount of the components (A), (B) and (C). The composition has good PCT and TCT acceptable quality and good fluidity, naturally having good properties intrinsic to ordinary PAS resin, and which, when used for sealing electronic parts, causes neither deformation of bonding wires and other elements nor package breakdown, and is therefore favorable to materials for sealing electronic parts.
摘要:
A ultraviolet-curable coating agent contains: a hydrophilic polymer having the specific structure represented by the following general formula (1); a polymerization-reactive urethane oligomer; a water-soluble monomer; a photo polymerization initiator; and a water-absorptive filler. The polymerization-reactive urethane oligomer is preferably formed of a carboxyl-group-containing dihydroxyl compound, polymer polyol, organic diisocyanate compound and hydroxyl-group-containing acrylic ester, and a number average molecular weight of the polymerization-reactive urethane oligomer is preferably 1000 to 10000. By applying the ultraviolet-curable coating agent onto a front face of a substrate, an ink-receiving layer having excellent ink absorptivity, drying characteristics of printed images, bleeding resistance, anti-tacking and water resistance can be formed. where: P represents an integer of 2 or more;R1 represents —H or —CH3;R2 represents —H or an alkyl group represented by —CmH2m+1 (in which m is an integer of 1 to 8);R3 represents an alkylene group represented by —CnH2n— (in which n is an integer of 1 to 8); andR4 and R5 each represent —H or an alkyl group represented by —CoH2o+1 (in which o is an integer of 1 to 8).body.
摘要翻译:紫外线固化型涂布剂含有:具有下述通式(1)表示的具体结构的亲水性聚合物; 聚合反应性氨基甲酸酯低聚物; 水溶性单体; 光聚合引发剂; 和吸水填料。 聚合反应性聚氨酯低聚物优选由含羧基的二羟基化合物,聚合物多元醇,有机二异氰酸酯化合物和含羟基的丙烯酸酯形成,并且聚合反应性氨基甲酸酯低聚物的数均分子量优选为1000 通过将紫外线固化性涂布剂涂布在基材的正面上,可以形成具有优异的油墨吸收性,印刷图像的干燥特性,耐渗色性,抗粘连性和耐水性的油墨接收层。 其中:P表示2以上的整数, R1表示-H或-CH3; R2表示-H或由-CmH2m + 1表示的烷基(其中m为1至8的整数); R 3表示由-C n H 2n - (其中n为1〜8的整数)表示的亚烷基。 并且R 4和R 5各自表示-H或由-CoH 2 O + 1表示的烷基(其中o为1至8的整数)。 身体。
摘要:
Provided is a polycarbonate resin composition having high rigidity, high flowability, high heat resistance and excellent flame retardancy and molded articles with good appearance using the polycarbonate resin composition.The polycarbonate resin composition comprises 4 to 50 parts by mass of a nonmetallic inorganic filler (B) and 0.01 to 1 part by mass of a phosphate compound (C) relative to 100 parts by mass of a resin mixture (A) which is composed of 60 to 97% by mass of an aromatic polycarbonate resin (a-1) and 40 to 3% by mass of a fatty acid polyester (a-2).
摘要:
A polyarylene sulfide resin which has an index of coupling reactivity at 320° C. of 2.0 or lower and an amount of SO2 generated therefrom at 300° C. of 0.02 mg/g or smaller; and a process for producing the polyarylene sulfide resin, which comprises polymerizing a polyfunctional halogenated aromatic compound with lithium sulfide in an aprotic organic solvent, and then washing the resultant polymer in a molten state. A composition comprising the polyarylene sulfide resin obtained by such process and an inorganic filler is reduced in unevenness of fluidity between lots and is reduced in sulfur odor emission during molding.
摘要翻译:在320℃下的在320℃下的偶联反应性指数为2.0以下,在300℃下由其生成的SO 2 O 3的量为0.02mg / g以下的聚芳硫醚树脂, 以及聚亚芳基硫醚树脂的制造方法,其特征在于,在非质子性有机溶剂中使多官能卤代芳香族化合物与硫化锂聚合,然后以熔融状态洗涤所得聚合物。 通过这种方法获得的包含聚芳硫醚树脂和无机填料的组合物在批间之间的流动性不均匀性降低,并且在模制期间减少了硫气味发射。