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    DRY ICE ASSISTED POLYMER PROCESSING, METHODS FOR MAKING, AND ARTICLES FORMED THEREOF
    11.
    发明申请
    DRY ICE ASSISTED POLYMER PROCESSING, METHODS FOR MAKING, AND ARTICLES FORMED THEREOF 有权
    干冰辅助聚合物加工，其制备方法及其形成的制品

    公开(公告)号：US20140061966A1

    公开(公告)日：2014-03-06

    申请号：US13602460

    申请日：2012-09-04

    Applicant: Sumanda Bandyopadhyay ,  Sadasivam Gopalakrishnan ,  Sathish Ranganathan Kumar ,  Kaushik Banik ,  Zahir Bashir

    Inventor： Sumanda Bandyopadhyay ,  Sadasivam Gopalakrishnan ,  Sathish Ranganathan Kumar ,  Kaushik Banik ,  Zahir Bashir

    IPC: C08J3/00 ,  C08G64/40 ,  D01D5/12 ,  B29C47/76 ,  B29B9/06 ,  B29C45/00 ,  C08G65/00 ,  C08F120/44

    CPC classification number: C08J3/203 ,  B29C47/38

    Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.

    Abstract translation: 在一个实施方案中，处理聚合物的方法包括：混合聚合物和固体二氧化碳; 将聚合物和固体二氧化碳混合物引入通风挤出机的料斗; 使混合物增塑以形成具有溶解的二氧化碳的聚合物熔体; 在模具出口之前排出二氧化碳作为气体; 并通过模具挤出聚合物熔体。 在一个实施方案中，制备制品的方法包括：将聚合物粉末引入挤出机; 将固体二氧化碳粉末引入料斗的挤出机; 塑化和挤出聚合物和固体二氧化碳混合物; 在模具出口之前排出固体二氧化碳; 通过模头挤出聚合物熔体以形成颗粒; 并注射成型聚合物颗粒而不含固体二氧化碳以形成模塑制品。

    PROCESS FOR MAKING POLYETHYLENE TEREPHTHALATE
    12.
    发明申请
    PROCESS FOR MAKING POLYETHYLENE TEREPHTHALATE 有权
    制备聚乙烯三烯酸的方法

    公开(公告)号：US20120071625A1

    公开(公告)日：2012-03-22

    申请号：US13256437

    申请日：2010-03-10

    Applicant: Mummaneni Venkateswara Rao ,  Munif Al-Munif ,  Zahir Bashir

    Inventor： Mummaneni Venkateswara Rao ,  Munif Al-Munif ,  Zahir Bashir

    IPC: C08G63/183

    CPC classification number: C08G63/82 ,  C08G63/83 ,  C08G63/866

    Abstract: The invention relates to a process for making polyethylene terephthalate (PET) from ethylene glycol (EG), purified terephthalic acid (PTA) and optionally up to 30 mol % comonomer, using a catalyst system essentially consisting of antimony—(Sb), zinc—(Zn) and phosphorous—(P) compounds, comprising the steps of a) esterifying EG and PTA to form diethyleneglycol terephthalate and oligomers (DGT), and b) melt-phase polycondensing DGT to form polyester and EG1 wherein the Sb- and P-compounds are added in step a) and the Zn-compound is added after step a). With this process PET can be obtained that shows favourable colour and optical clarity, also if recycling of EG is applied in the process, and a relatively low rate of acetaldehyde re-generation during melt-processing.

    Abstract translation: 本发明涉及一种由乙二醇（EG），纯对苯二甲酸（PTA）和任选的至多30mol％共聚单体制备聚对苯二甲酸乙二醇酯（PET）的方法，该催化剂体系主要由锑 - （Sb），锌 - （Zn）和磷 - （P）化合物，包括以下步骤：a）酯化EG和PTA以形成对二醇二乙二醇酯和低聚物（DGT），和b）熔融相缩聚DGT以形成聚酯和EG1，其中Sb-和P - 化合物在步骤a）中加入，并且在步骤a）之后加入Zn化合物。 通过该方法，可以获得显示有利的颜色和光学透明度的PET，以及在该方法中应用EG的再循环以及在熔融加工期间相对较低的乙醛再生速率。

    Process for making thermoplastic polyesters
    15.
    发明授权
    Process for making thermoplastic polyesters 有权
    制造热塑性聚酯的方法

    公开(公告)号：US08772436B2

    公开(公告)日：2014-07-08

    申请号：US13256540

    申请日：2010-03-15

    Applicant: Zahir Bashir

    Inventor： Zahir Bashir

    IPC: C08G63/00 ,  C08G63/85

    CPC classification number: C08G63/85

    Abstract: The invention relates to a process for making a thermoplastic polyester, which comprises contacting at least one carboxylic acid-based compound and at least one alcohol-based compound in esterification and subsequent polycondensation reactions, in the presence of certain exfoliated inorganic nano-layered titanates acting as a catalyst.

    Abstract translation: 本发明涉及一种制备热塑性聚酯的方法，其包括在酯化和随后的缩聚反应中使至少一种羧酸基化合物和至少一种醇基化合物在某些剥离的无机纳米层状钛酸盐 作为催化剂。

    PROCESS FOR MAKING POLYETHYLENE TEREPHTHALATE
    16.
    发明申请
    PROCESS FOR MAKING POLYETHYLENE TEREPHTHALATE 有权
    制备聚乙烯三烯酸的方法

    公开(公告)号：US20120161358A1

    公开(公告)日：2012-06-28

    申请号：US13391432

    申请日：2010-08-17

    Applicant: Munif Al-Munif ,  Mummaneni Venkateswara Rao ,  Zahir Bashir ,  Suresh Padmanabhan

    Inventor： Munif Al-Munif ,  Mummaneni Venkateswara Rao ,  Zahir Bashir ,  Suresh Padmanabhan

    IPC: C08G63/78 ,  C08G63/80 ,  B29C71/02 ,  C08G63/85

    CPC classification number: C08G63/85

    Abstract: The invention relates to a process for making polyethylene terephthalate (PET) from ethylene glycol (EG), purified terephthalic acid (PTA) and optionally up to 6 mol % comonomer, using a mixed metal catalyst system and comprising the steps of a) esterifying EG and PTA to form diethyleneglycol terephthalate and oligomers (DGT), and b) melt-phase polycondensing DGT to form PET and EG, wherein the catalyst system substantially consists of 70-160 ppm of Sb-compound, 20-70 ppm of Zn-compound, and 0.5-20 ppm of Ti-glycolate as active components (ppm metal based on PET). With this process that applies reduced amount of metal catalyst components PET can be obtained with high productivity, which polyester shows favourable colour and optical clarity, also if recycling of EG is applied within the process.

    Abstract translation: 本发明涉及使用混合金属催化剂体系从乙二醇（EG），纯化对苯二甲酸（PTA）和任选多达6mol％的共聚单体制备聚对苯二甲酸乙二醇酯（PET）的方法，包括以下步骤：a）酯化EG 和PTA以形成对二醇二乙二醇酯和低聚物（DGT），和b）熔融相缩聚DGT以形成PET和EG，其中催化剂体系基本上由70-160ppm的Sb-化合物，20-70ppm的Zn化合物 ，和0.5-20ppm的作为活性成分的Ti-羟乙酸酯（基于PET的ppm金属）。 通过该方法可以减少金属催化剂组分的量，可以以高生产率获得PET，该聚酯显示有利的颜色和光学透明度，以及在该方法中应用EG的再循环。

    PROCESS FOR MAKING THERMOPLASTIC POLYESTERS
    17.
    发明申请
    PROCESS FOR MAKING THERMOPLASTIC POLYESTERS 有权
    制造热塑性聚酯的工艺

    公开(公告)号：US20120010382A1

    公开(公告)日：2012-01-12

    申请号：US13256540

    申请日：2010-03-15

    Applicant: Zahir Bashir

    Inventor： Zahir Bashir

    IPC: C08G63/183 ,  B82Y30/00

    CPC classification number: C08G63/85

    Abstract: The invention relates to a process for making a thermoplastic polyester, which comprises contacting at least one carboxylic acid-based compound and at least one alcohol-based compound in esterification and subsequent polycondensation reactions, in the presence of certain exfoliated inorganic nano-layered titanates acting as a catalyst.

    Abstract translation: 本发明涉及一种制备热塑性聚酯的方法，其包括在酯化和随后的缩聚反应中使至少一种羧酸基化合物和至少一种醇基化合物在某些剥离的无机纳米层状钛酸盐 作为催化剂。

    Process for Making Opaque Polyester Film
    18.
    发明申请
    Process for Making Opaque Polyester Film 有权
    制造不透明聚酯薄膜的工艺

    公开(公告)号：US20110097524A1

    公开(公告)日：2011-04-28

    申请号：US12988737

    申请日：2009-04-20

    Applicant: Zahir Bashir ,  Ian Macmillian Ward ,  Glen Peter Thompson ,  Anthony Paul Unwin

    Inventor： Zahir Bashir ,  Ian Macmillian Ward ,  Glen Peter Thompson ,  Anthony Paul Unwin

    IPC: B32B27/36 ,  B32B1/02 ,  D03D15/00 ,  C08G63/181 ,  C08G63/183 ,  C08G63/189

    CPC classification number: D01F6/62 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/0057 ,  B29C47/043 ,  B29C47/88 ,  B29C47/8805 ,  B29C47/8815 ,  B29C47/884 ,  B29C47/8845 ,  B29C47/92 ,  B29C55/06 ,  B29C55/12 ,  B29C55/14 ,  B29C55/143 ,  B29C71/02 ,  B29C2071/022 ,  B29C2947/92742 ,  B29C2947/92752 ,  B29C2947/9278 ,  B29K2067/00 ,  B29K2067/003 ,  C08J5/18 ,  C08J2367/02 ,  D01D5/426 ,  Y10T428/1345 ,  Y10T442/30

    Abstract: The invention relates to a process for making an opaque and glossy film from a thermoplastic polyester composition, comprising the steps of a) extruding the polyester composition through a slot die, and quenching to form a substantially amorphous film having a crystallinity of at most 5%; b) rapidly heating the amorphous film to a drawing temperature in the range from Tg to (Tg+50)° C. while applying a draw ratio in the range of from λinitiation to λmax. in longitudinal direction, and a drawing rate of at least 1 m/min to form an oriented film showing stress-whitening, wherein λinitiation is the draw ratio at which a transfer from a transparent product to a stress-whitened product occurs and λmax. is the draw ratio at which failure of the stress whitened film occurs; and c) heat-setting the oriented stress-whitened film; the thermoplastic polyester composition substantially consisting of at least one crystallisable polyester derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid.With this process it is possible to make a unitary, glossy, opaque film from a polyester composition that does not contain void-forming additives like high amounts of fine pigment particles or dispersed non-miscible polymer particles. The film obtained also has very good mechanical properties. It is a further advantage that the process can be performed continuously on conventional extrusion and stretching equipment used for making transparent film from polyesters.The invention also relates to an opaque polyester film obtainable by said process.

    Abstract translation: 本发明涉及一种由热塑性聚酯组合物制造不透明和光泽的薄膜的方法，包括以下步骤：a）通过狭缝模头挤出聚酯组合物，并淬火以形成结晶度至多为5％的基本上无定形的薄膜， ; b）在从λ到（Tg + 50）℃的范围内，将非晶膜快速加热至拉伸温度，同时施加λ至λ的范围内的拉伸比。 并且拉伸速度为至少1m /分钟，以形成显示应力增白的取向膜，其中λ是指从透明产品向应力白化产品的转移发生的拉伸比和λmax。 是发生应力增白膜失效的拉伸比; 和c）热定形应力增白膜; 所述热塑性聚酯组合物基本上由至少一种衍生自至少一种脂族二醇和至少一种芳族二羧酸的可结晶聚酯组成。 通过该方法，可以由不含空隙形成添加剂如大量细颜料颗粒或分散的不可混溶的聚合物颗粒的聚酯组合物制成单一的，光泽的不透明膜。 获得的膜也具有非常好的机械性能。 进一步的优点是可以在用于从聚酯制造透明膜的常规挤出和拉伸设备上连续进行。 本发明还涉及通过所述方法可获得的不透明聚酯膜。

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