Process for heat treatment of semi-crystalline polymers
    3.
    发明授权
    Process for heat treatment of semi-crystalline polymers 有权
    半结晶聚合物热处理工艺

    公开(公告)号:US09242218B2

    公开(公告)日:2016-01-26

    申请号:US13003654

    申请日:2009-07-07

    申请人: Eric Grolman

    发明人: Eric Grolman

    摘要: The present invention relates to a continuous process for heat treatment of a particulate thermoplastic material comprising a thermoplastic semi-crystalline polymer in the solid state in a single flow-through installation comprising one or more heating zones, wherein each heating zone comprises a contact heater consisting of an array of heating plates, the granulate material is transported as a moving packed bed in the flow-through installation, the process comprises one or more heating steps and in each heating step the particulate material is heated through contact heating via the contact heater, or one of the contact heaters, and optionally a flow of inert gas is applied in one or more heating zones with a mass ratio G/M of at most 2, wherein G is the inert gas flow in kg/hour and M is the particulate material flow in kg/hour.

    摘要翻译: 本发明涉及用于在包含一个或多个加热区的单个流通装置中将固体状态的热塑性半结晶聚合物热处理的连续方法,其中每个加热区包括接触加热器 的一组加热板,颗粒材料作为流动装置中的移动填充床运输,该方法包括一个或多个加热步骤,并且在每个加热步骤中,通过接触加热器通过接触加热来加热颗粒材料, 或其中一个接触式加热器,以及任选的惰性气体流在质量比G / M至多为2的一个或多个加热区中施加,其中G是以kg /小时为单位的惰性气体流量,M是颗粒 物料流量(kg / hour)。

    Method for crystallizing crystallizable polymers having a high tendency to agglomerate
    5.
    发明授权
    Method for crystallizing crystallizable polymers having a high tendency to agglomerate 有权
    使具有高凝聚倾向的结晶聚合物结晶的方法

    公开(公告)号:US08728368B2

    公开(公告)日:2014-05-20

    申请号:US12742714

    申请日:2008-09-22

    IPC分类号: B29B9/00 B29B9/16

    摘要: The invention relates to a method for producing a semicrystalline polymer, said method comprising the following steps: producing a polymer melt from a crystallizable polymer; shaping particles and solidifying the polymer melt, the step of shaping the particles being carried out before or after solidification; cooling the particles; treating the particles to reduce their tendency to agglomerate; crystallizing the particles. The invention is characterized in that the treatment is carried out by shaking at a temperature T1 which is below the glass transition temperature of the polymer plus 10° C., i.e. T1

    摘要翻译: 本发明涉及一种半结晶聚合物的制备方法,所述方法包括以下步骤:从可结晶聚合物制备聚合物熔体; 成型颗粒并固化聚合物熔体,在凝固之前或之后使颗粒成形的步骤; 冷却颗粒; 处理颗粒以减少它们的聚集倾向; 使颗粒结晶。 本发明的特征在于,通过在低于聚合物的玻璃化转变温度加10℃,即T1

    Process and Apparatus for Direct Crystallization of Polymers Under Inert Gas
    6.
    发明申请
    Process and Apparatus for Direct Crystallization of Polymers Under Inert Gas 有权
    惰性气体下聚合物直接结晶的工艺和装置

    公开(公告)号:US20140084504A1

    公开(公告)日:2014-03-27

    申请号:US14032357

    申请日:2013-09-20

    IPC分类号: B01J2/00

    摘要: An apparatus for continuous pelletization and crystallization of a polymer includes a unit for forming a polymer pellet material and cooling the pellet material in a liquid cooling medium. An after-connected drying unit has an exit opening for exporting gas and a crystallizer for crystallizing the pellet material. The crystallizer communicates via a connection line with the pre-connected unit for separating the liquid cooling medium from the pellet material and drying the pellet material. The crystallizer communicates with an inert gas tank, whereby the pressure in the crystallizer can be increased relative to the pressure in the drying unit. A related process is also disclosed.

    摘要翻译: 用于聚合物的连续造粒和结晶的设备包括用于形成聚合物颗粒材料并在液体冷却介质中冷却颗粒材料的单元。 后连接的干燥单元具有用于输出气体的出口和用于使颗粒材料结晶的结晶器。 结晶器通过连接线与预连接单元连通,用于将液体冷却介质与颗粒材料分离并干燥颗粒材料。 结晶器与惰性气体罐连通,由此结晶器中的压力可以相对于干燥单元中的压力增加。 还公开了相关过程。

    Biodegradable Aliphatic Polyester Particles and Production Process Thereof
    7.
    发明申请
    Biodegradable Aliphatic Polyester Particles and Production Process Thereof 审中-公开
    可生物降解的脂肪族聚酯颗粒及其制备方法

    公开(公告)号:US20140017495A1

    公开(公告)日:2014-01-16

    申请号:US14006982

    申请日:2012-03-21

    IPC分类号: C08G63/88 C08G63/06

    摘要: The invention provides biodegradable aliphatic polyester particles having the following physical properties: (A) the average particle diameter thereof is 5 to 500 μm; and (B) the fracture stress of a columnar tablet obtained by molding the particles in a cylindrical mold by applying a load of 4 kgf/cm2 for 1 hour at a temperature of 40° C. is at most 500 gf/cm2, and preferably also having the following property: (C) the fracture stress of a columnar tablet obtained by molding the particles in a cylindrical mold by applying a load of 4 kgf/cm2 for 1 hour at a temperature of [the glass transition temperature (Tg) of a biodegradable aliphatic polyester +10° C.] is at most 2,000 gf/cm2, a process for producing the biodegradable aliphatic polyester particles, which comprises treating a particulate biodegradable aliphatic polyester obtained by grinding at a temperature lower than the Tg at a temperature not lower than [the crystallization temperature (Tc1) upon heating of the biodegradable aliphatic polyester−40° C], and the biodegradable aliphatic polyester particles obtained by the production process.

    摘要翻译: 本发明提供具有以下物理性质的生物可降解脂族聚酯颗粒:(A)其平均粒径为5至500μm; 和(B)通过在40℃的温度下施加4kgf / cm 2的负荷1小时将通过在圆筒形模具中成型颗粒而获得的柱状片的断裂应力为500gf / cm 2以下,优选为 还具有以下特性:(C)通过在[玻璃化转变温度(Tg)为[玻璃化转变温度(Tg)]的温度下,通过在4kgf / cm 2的负荷下进行1小时的模塑而将颗粒成形为圆柱形模具而获得的柱状片的断裂应力 生物降解性脂肪族聚酯+ 10℃]为2000gf / cm 2以下,生物降解性脂肪族聚酯粒子的制造方法,其特征在于,在不低于Tg的温度下,在不低于Tg的温度下,研磨得到的颗粒状生物降解性脂肪族聚酯 低于[生物降解性脂肪族聚酯-40℃加热时的结晶温度(Tc1)],以及通过该制造方法得到的生物降解性脂肪族聚酯粒子。

    METHOD FOR CARRYING OUT POLYMERISATION PROCESSES
    8.
    发明申请
    METHOD FOR CARRYING OUT POLYMERISATION PROCESSES 审中-公开
    执行聚合过程的方法

    公开(公告)号:US20130116399A1

    公开(公告)日:2013-05-09

    申请号:US13697979

    申请日:2011-05-12

    IPC分类号: C08G63/88

    摘要: A method for carrying out polymerization processes, includes a first step involving polymerization or co-polymerization of a monomer or monomers, and a second step involving a separation step. In an embodiment, before the separation step, during the separation step, or both before and during the separation step, one or more substance is added to the reaction mixture that induces stripping, influencing of the temperature, or both stripping and influencing of the temperature such that the reaction equilibrium is shifted to the polymers and the rate of reaction to the monomer is slowed. In embodiments, before and/or in the second step, a substance is added to the reaction mixture so that a stop is achieved, and as a further function stripping and/or influencing of temperature occurs.

    摘要翻译: 进行聚合方法的方法包括涉及单体或单体的聚合或共聚的第一步骤和涉及分离步骤的第二步骤。 在一个实施方案中,在分离步骤之前,在分离步骤期间或在分离步骤之前或之间,在反应混合物中加入一种或多种物质以引起汽提,影响温度,或两者的汽提和温度的影响 使得反应平衡转移到聚合物上,并且与单体的反应速率减慢。 在实施方案中,在第二步骤之前和/或在第二步骤中,将物质加入到反应混合物中以便达到停止,并且作为进一步的功能,可以进行剥离和/或温度影响。

    Method and apparatus for thermally processing polyester pellets
    9.
    发明授权
    Method and apparatus for thermally processing polyester pellets 有权
    聚酯颗粒热处理方法和设备

    公开(公告)号:US08324339B2

    公开(公告)日:2012-12-04

    申请号:US10962614

    申请日:2004-10-13

    申请人: Theodor Bruckmann

    发明人: Theodor Bruckmann

    IPC分类号: C08G63/78 C08J3/12

    摘要: Method and apparatus for thermally processing polyester pellets, e.g., polyethylene terephthalate pellets, in order to achieve a partial crystallization, whereby the polyester melt is fed to an underwater pelletizer and pelletized, the pellets obtained are fed to a water/solids separating device and the dried pellets are fed at a pellet temperature of greater than 100°C. to an agitation device that the pellets leave at a pellet temperature of over 100°C.

    摘要翻译: 为了实现部分结晶,将聚酯粒料加热处理,例如聚对苯二甲酸乙二醇酯粒料的方法和装置,由此将聚酯熔体进料到水下造粒机并造粒,得到的颗粒进料到水/固体分离装置中, 干燥的颗粒在大于100℃的颗粒温度下进料。 到一个搅拌装置,颗粒在超过100℃的颗粒温度下离开。