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    • 4. 发明申请
    • METHOD FOR PRODUCING THERMOPLASTIC POLYESTER ELASTOMER, THERMOPLASTIC POLYESTER ELASTOMER COMPOSITION, AND THERMOPLASTIC POLYESTER ELASTOMER
    • 生产热塑性聚酯弹性体的方法,热塑性聚酯弹性体组合物和热塑性聚酯弹性体
    • US20090203871A1
    • 2009-08-13
    • US12158231
    • 2006-12-15
    • Gaku MaruyamaShoji KoketsuKenta SusukiKatsuaki KuzeShigeo Ukyo
    • Gaku MaruyamaShoji KoketsuKenta SusukiKatsuaki KuzeShigeo Ukyo
    • C08G63/56
    • C08G63/64C08G63/914
    • The present invention provides a thermoplastic polyester elastomer excellent in heat resistance, heat-aging resistance, water resistance, light resistance, low-temperature property and the like, and further excellent in block order-retaining ability, the thermoplastic polyester elastomer comprising a hard segment which comprises polyester constituted with aromatic dicarboxylic acid and aliphatic or alicyclic diol and a soft segment which comprises mainly aliphatic polycarbonate, wherein the hard segment and the soft segment being connected, and wherein when melting points of the thermoplastic polyester elastomer are obtained by measuring on a differential scanning calorimeter in three cycles in which a temperature is raised from room temperature to 300° C. at a heating rate of 20° C./min., maintained at 300° C. for 3 minutes and lowered to room temperature at a cooling rate of 100° C./min., a melting point difference (Tm1−Tm3) between a melting point obtained in the first cycle (Tm1) and a melting point obtained in the third cycle (Tm3) is 0-50° C., and a tensile strength at break is 15-100 MPa.
    • 本发明提供一种耐热性,耐热老化性,耐水性,耐光性,低温性等优异的热塑性聚酯弹性体,并且具有优异的嵌段顺序保持能力,热塑性聚酯弹性体包含硬链段 其包含由芳族二羧酸和脂族或脂环族二醇构成的聚酯和主要包含脂肪族聚碳酸酯的软链段,其中所述硬链段和所述软链段连接,并且其中当所述热塑性聚酯弹性体的熔点通过 差示扫描量热计在三个循环中,其中温度以20℃/分钟的升温速度从室温升至300℃,保持在300℃3分钟,并在冷却下降至室温 速率为100℃/分钟,在第一周期获得的熔点(Tm)之间的熔点差(Tm1-Tm3) 1),在第3循环(Tm3)中得到的熔点为0〜50℃,断裂拉伸强度为15〜100MPa。
    • 10. 发明授权
    • Method for continuous production of polyamide
    • 连续生产聚酰胺的方法
    • US07381788B2
    • 2008-06-03
    • US10525740
    • 2003-08-27
    • Yasuhito TsujiiGaku MaruyamaKaoru OgawaYoshinori TakadaKazuhisa KoishiKenta Susuki
    • Yasuhito TsujiiGaku MaruyamaKaoru OgawaYoshinori TakadaKazuhisa KoishiKenta Susuki
    • C08G69/00C08G69/28B29C47/76
    • C08G69/04C08G69/28
    • Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a polyamide, comprising (a) a raw material preparation step of individually melting a diamine and a dicarboxylic acid, or producing a salt of amine and carboxylic acid in water, (b) a raw material introduction step of continuously introducing the prepared raw materials into a tubular reaction apparatus, (c) an amidation step of passing the introduced raw materials through the tubular reaction apparatus, thereby effecting amidation to obtain a reaction mixture containing an amidated product and a condensed water, (d) an initial polymerization step of introducing the reaction mixture into a continuous reaction apparatus capable of separation and removal of water, and elevating the polymerization degree while separating and removing water at a temperature higher than the melting point of the finally obtained polyamide to obtain a polyamide prepolymer, and (e) a final polymerization step of introducing the polyamide prepolymer into a continuous reaction apparatus capable of separation and removal of water, and further elevating the polymerization degree at a temperature higher than the melting point of the finally obtained polyamide to obtain a polyamide adjusted to a desired relative viscosity [RV].
    • 提供了具有稳定的聚合度和良好质量的聚酰胺的连续制备方法,特别是含芳族聚酰胺。 一种聚酰胺的连续制造方法,其特征在于,包括:(a)将二胺和二羧酸单独熔融或在水中生成胺和羧酸盐的原料制备工序,(b)原料引入工序, 所制备的原料进入管状反应装置,(c)使引入的原料通过管状反应装置的酰胺化步骤,从而进行酰胺化以获得含有酰胺化产物和冷凝水的反应混合物,(d)初始 将反应混合物引入能够分离和除去水的连续反应装置的聚合步骤,并且在高于最终获得的聚酰胺的熔点的温度下分离和除去水以提高聚合度以获得聚酰胺预聚物,以及 (e)将聚酰胺预聚物引入连续反应ap的最终聚合步骤 能够分离和除去水,并且在高于最终获得的聚酰胺的熔点的温度下进一步提高聚合度,以获得调节至所需相对粘度[RV]的聚酰胺。