Polybutylene terephthalate resin and compositions and molded articles comprising the resin
    1.
    发明授权
    Polybutylene terephthalate resin and compositions and molded articles comprising the resin 有权
    聚对苯二甲酸丁二醇酯树脂和包含该树脂的组合物和模塑制品

    公开(公告)号:US06762235B2

    公开(公告)日:2004-07-13

    申请号:US10126406

    申请日:2002-04-19

    IPC分类号: C08K340

    CPC分类号: C08G63/183

    摘要: A polybutylene terephthalate resin having 30 eq/t or less of carboxyl end group, a crystallization temperature in a temperature decrease of 175° C. or higher and an amount of residual tetrahydrofuran of 300 ppm by weight or less; and compositions and molded articles comprising the resin and glass fiber, antioxidants and mold-releasing agents is provided. The polybutylene terephthalate resin can be molded in a short molding cycle, exhibits excellent resistance to hydrolysis and mold-releasing property, causes no corrosion of metals and generates little gas during molding. The compositions and the molded articles exhibit improved impact resistance, stability under heating and oxidation and mold-releasing property and can be advantageously used for members in electric and electronic products and in automobiles.

    摘要翻译: 具有30eq / t以下羧基端基的聚对苯二甲酸丁二醇酯树脂,温度降低175℃以上的结晶温度和300重量ppm以下的残留四氢呋喃的量; 并提供包含树脂和玻璃纤维的组合物和模制品,抗氧化剂和脱模剂。 聚对苯二甲酸丁二醇酯树脂可以在短的成型周期中成型,显示出优异的耐水解性和脱模性,不会造成金属的腐蚀,并且在成型期间产生很少的气体。 组合物和成型体具有改进的耐冲击性,加热和氧化下的稳定性和脱模性,并且可以有利地用于电动和电子产品和汽车中的构件。

    Recycled resin composition and method for producing the same
    4.
    发明授权
    Recycled resin composition and method for producing the same 有权
    回收树脂组合物及其制造方法

    公开(公告)号:US06723759B2

    公开(公告)日:2004-04-20

    申请号:US09567100

    申请日:2000-05-08

    IPC分类号: C08J1104

    CPC分类号: C08J11/06 Y02W30/701

    摘要: Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.

    摘要翻译: 公开了具有与原料树脂组合物相比具有物理性能,进料特性和成型性的回收树脂组合物,即使当用作模塑材料的再循环树脂组合物中的再循环材料的比例增加时,也不会劣化 。 通过将含有(a)原料树脂,(b)至少一种树脂添加剂的混合物和(c)在成型时产生的回收模塑制品的粉碎材料混合而获得的再循环树脂组合物 原料树脂组合物,其包含(a)所述原料树脂和(b)所述至少一种树脂添加剂和/或再循环树脂组合物,其包含(a)所述原料树脂和(b)所述至少一种 提供树脂添加剂。