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    Polymer compositions and cast films
    1.
    发明授权
    Polymer compositions and cast films 失效
    聚合物组合物和流延膜

    公开(公告)号：US5674630A

    公开(公告)日：1997-10-07

    申请号：US436825

    申请日：1995-05-08

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: C08L23/12 ,  C08L23/16 ,  C08L23/04

    CPC classification number: C08L23/12 ,  C08L23/16 ,  Y10T428/31855 ,  Y10T428/31942

    Abstract: Polypropylene impact copolymer compositions are provided which contain a homopolymer phase of predominantly homopolymeric polypropylene, a copolymer phase of copolymerized ethylene and propylene, and a nucleating agent. The inventive compositions have a rubber content (Fc) in the range of 25 to 45% by weight, a crystallization temperature in the range of 122.degree. to 132.degree. C., a melt flow in the range of about 7 to about 60 dg/min, and a ratio of the intrinsic viscosity of the copolymer phase to the intrinsic viscosity of the homopolymer phase of 1.4 to about 1.9. The polypropylene impact copolymer compositions may be used to form cast films which preferably are soft, quiet, and suitable for use in products to be used next to the skin, such as diapers, adult incontinence pads and feminine hygiene products.

    Abstract translation: 提供了聚丙烯抗冲共聚物组合物，其含有主要均聚聚丙烯的均聚物相，共聚乙烯和丙烯的共聚物相和成核剂。 本发明的组合物的橡胶含量（Fc）为25〜45重量％，结晶温度为122〜132℃，熔体流动范围为约7〜约60dg / min，共聚物相的特性粘度与均聚物相的特性粘度之比为1.4〜1.9。 聚丙烯抗冲共聚物组合物可用于形成优选柔软，安静并适合用于皮肤旁边使用的产品的流延膜，例如尿布，成人失禁垫和女性卫生用品。

    In-reactor stabilization of polymers via coated stabilizers
    3.
    发明授权
    In-reactor stabilization of polymers via coated stabilizers 失效
    通过涂覆的稳定剂对聚合物进行反应器内稳定化

    公开(公告)号：US5208275A

    公开(公告)日：1993-05-04

    申请号：US617299

    申请日：1990-11-20

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: C08F10/00 ,  C08K5/00 ,  C08K9/08

    CPC classification number: C08K5/005 ,  C08F10/00 ,  C08K9/08

    Abstract: The present invention includes:(i) a method for making a coated particulate comprising the steps offorming a polyolefin emulsion or dispersion;fluidizing additive particles;spraying the emulsion or dispersion on the fluidized additive particles; andforming discrete substantially coated additive particles;(ii) a coated particulate made by the above process; and(iii) a process for providing in-reactor stabilization of a polyolefin during a polymerization reaction using the coated additives prepared by the above described method.

    Abstract translation: 本发明包括：（i）制备涂覆颗粒的方法，包括形成聚烯烃乳液或分散体的步骤; 流化添加剂颗粒; 将乳液或分散体喷洒在流化的添加剂颗粒上; 并形成离散的基本上涂覆的添加剂颗粒; （ii）通过上述方法制成的涂覆颗粒; 和（iii）使用通过上述方法制备的涂覆添加剂在聚合反应期间提供聚烯烃的反应器内稳定化的方法。

    Nucleating agents for stereoregular elastomeric butene-1 polymer compositions
    4.
    发明授权
    Nucleating agents for stereoregular elastomeric butene-1 polymer compositions 失效
    立体规则弹性体丁烯-1聚合物组合物的成核剂

    公开(公告)号：US4645792A

    公开(公告)日：1987-02-24

    申请号：US702855

    申请日：1985-02-19

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: C08K5/20 ,  C08L23/20

    CPC classification number: C08K5/20

    Abstract: The crystallization from the melt of an elastomeric stereo-regular butene-1 polymer composition is promoted by adding a small amount of a nucleating agent selected from the group consisting of stearamide; N,N'-ethylene-bis-stearamide; 1-napthalene acetamide; benzamide; low molecular weight high density polyethylene and isotactic polypropylene.

    Abstract translation: 弹性立体异构丁烯-1聚合物组合物的熔体结晶通过加入少量选自硬脂酰胺的成核剂促进; N，N'-亚乙基 - 双硬脂酰胺; 1-萘乙酰胺; 苯甲酰胺 低分子量高密度聚乙烯和全同立构聚丙烯。

    Process and apparatus for continual melt hydrolysis of acetal copolymers
    5.
    发明授权
    Process and apparatus for continual melt hydrolysis of acetal copolymers 失效
    乙缩醛共聚物连续熔融水解的方法和设备

    公开(公告)号：US4458064A

    公开(公告)日：1984-07-03

    申请号：US505595

    申请日：1983-08-19

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: B29C47/36 ,  B29C47/50 ,  B29C47/76 ,  C08G2/00 ,  C08G2/36 ,  C08G2/28

    CPC classification number: B29C47/76 ,  B29C47/362 ,  B29C47/366 ,  B29C47/50 ,  B29C47/702 ,  C08G2/00 ,  C08G2/36 ,  B29C47/0009

    Abstract: The present invention is an improved method for stabilizing acetal copolymers by hydrolyzing the copolymer product in a low energy reaction process wherein undesirable side products are continuously and efficiently removed by melting and extruding the unhydrolyzed oxymethylene copolymer into a hydrolysis reaction zone in which the necessary reactants are intimately contacted with the copolymer, preferably by means of flow division and rearrangement mixing technique. Subsequently, the hydrolyzed copolymer product is devolatilized to remove the unwanted side products by passing it through a devolatilization zone preferably having more than one devolatilization port and a vacuum source from which negative pressure is available for application to the devolatilization ports so that the undesired products may be effectively removed.

    Abstract translation: 本发明是通过在低能量反应过程中水解共聚物产物来稳定乙缩醛共聚物的改进方法，其中通过将未水解的甲醛共聚物熔融和挤出到需要反应物的水解反应区域中连续有效地除去不需要的副产物 与共聚物紧密接触，优选通过流动分配和重排混合技术。 随后，将水解的共聚物产物脱挥发酵，以通过使其脱离脱挥发区以除去不期望的副产物，该脱挥发区优选具有多于一个脱挥发分口和真空源，从该负压可用于施加到脱挥发分口，使得不期望的产物可能 被有效地删除。

    Fatty acid amide nucleating agents for butene-1 polymer compositions
    6.
    发明授权
    Fatty acid amide nucleating agents for butene-1 polymer compositions 失效
    用于丁烯-1聚合物组合物的脂肪酸酰胺成核剂

    公开(公告)号：US4322503A

    公开(公告)日：1982-03-30

    申请号：US216055

    申请日：1980-12-15

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: C08K5/20

    CPC classification number: C08K5/20

    Abstract: The crystallization from the melt of an isotactic butene-1 homopolymer composition or isotactic butene-1-ethylene copolymer composition is promoted by adding a small amount of a nucleating agent selected from the group consisting of N,N'-ethylene-bis-stearamide and stearamide.

    Abstract translation: 全同立构丁烯-1均聚物组合物或全同立构丁烯-1-乙烯共聚物组合物的熔体结晶通过加入少量选自N，N'-亚乙基 - 双硬脂酰胺的成核剂和 硬脂酰胺。

    Polymer compositions
    9.
    发明授权
    Polymer compositions 失效
    聚合物组合物

    公开(公告)号：US5510413A

    公开(公告)日：1996-04-23

    申请号：US811218

    申请日：1991-12-20

    Applicant: James D. McCullough ,  Thomas F. Brownscombe ,  Ananda M. Chatterjee

    Inventor： James D. McCullough ,  Thomas F. Brownscombe ,  Ananda M. Chatterjee

    IPC: C08K3/34

    CPC classification number: C08K3/34

    Abstract: Polymer compositions comprising .alpha.-olefin polymers and a minor proportion of synthetic basic zeolite are stabilized against the harmful effects of corrosion of metal surfaces when processed through mechanical equipment such as molds and extruders where the composition normally contacts metal surfaces.

    Abstract translation: 包含α-烯烃聚合物和少量合成碱性沸石的聚合物组合物在通过诸如模具和挤出机的机械设备（其中组合物通常接触金属表面）进行加工时，抵抗了金属表面的腐蚀的有害影响。

    Process for coating polyolefin granules in a fluidized bed
    10.
    发明授权
    Process for coating polyolefin granules in a fluidized bed 失效
    在流化床中涂覆聚烯烃颗粒的方法

    公开(公告)号：US5141772A

    公开(公告)日：1992-08-25

    申请号：US779670

    申请日：1991-10-21

    Applicant: Ananda M. Chatterjee

    Inventor： Ananda M. Chatterjee

    IPC: C08J3/205

    CPC classification number: C08J3/2053 ,  Y10T428/2998

    Abstract: A low temperature process for coating polymer granules with additives in order to modify the properties of the polymer comprises contacting a fluidized bed of the polymer granules with an aqueous dispersion of additives.

    Abstract translation: 用于涂覆具有添加剂的聚合物颗粒以便改变聚合物性质的低温方法包括使聚合物颗粒的流化床与添加剂的水分散体接触。

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