Inherently open-celled polypropylene foam with large cell size
    142.
    发明授权
    Inherently open-celled polypropylene foam with large cell size 失效
    具有大单元尺寸的固有开孔聚丙烯泡沫

    公开(公告)号:US07759404B2

    公开(公告)日:2010-07-20

    申请号:US11663800

    申请日:2005-10-07

    Abstract: Foam a polymer blend of (a) a high melt strength polypropylene (HMS PP); (b) a linear or substantially linear polypropylene that has a melting point within ten degrees Celsius of (a), a melt flow rate that is significantly different than (a) and that is miscible with (a); and, optionally, (c) a polyethylene that is immiscible with (a) produces a polymeric foam having an average cell size of at least four millimeters and that has an inherent open-celled content of at least 40 percent. The HMS PP makes up 60 weight percent (wt %) or more and 90 wt % or less of the total combined weight of (a) and (b). Component (c) makes up 60 wt % or less of the total polymer blend weight.

    Abstract translation: 泡沫(a)高熔体强度聚丙烯(HMS PP)的聚合物共混物; (b)具有(a)熔点在10摄氏度内的线性或基本上线性的聚丙烯,熔体流动速率与(a)明显不同且与(a)混溶)。 和(c)与(a)不混合的聚乙烯,其产生具有至少四毫米的平均泡孔尺寸并且具有至少40%的固有的开孔含量的聚合物泡沫。 HMS PP占(a)和(b)的总组合重量的60重量%(wt%)以上且90重量%以下。 组分(c)占总聚合物共混物重量的60重量%或更少。

    FLAME-RETARDED STYRENE-BASED RESIN COMPOSITIONS
    143.
    发明申请
    FLAME-RETARDED STYRENE-BASED RESIN COMPOSITIONS 审中-公开
    阻燃型苯乙烯树脂组合物

    公开(公告)号:US20100168263A1

    公开(公告)日:2010-07-01

    申请号:US12278899

    申请日:2007-02-05

    Abstract: Disclosed is a flame-retardant styrene resin composition. The composition comprises 100 parts by weight of a styrene resin, 0.5 to 10 parts by weight of a brominated flame-retarder which has a bromine content of 60% by weight or higher, and 0.005 to 0.5 part by weight of urea, thiourea or an N-substituted derivative thereof. By using an urea compound concomitantly, the amount of the brominated flame-retarder required for achieving a desired flame retardancy level can be reduced.

    Abstract translation: 公开了一种阻燃苯乙烯树脂组合物。 该组合物包含100重量份的苯乙烯树脂,0.5-10重量份溴含量为60重量%以上的溴化阻燃剂和0.005-0.5重量份的脲,硫脲或 N-取代的衍生物。 通过同时使用尿素化合物,可以降低实现所需阻燃性水平所需的溴化阻燃剂的量。

    POLYLACTIC ACID-BASED RESIN FOAMED PARTICLES FOR IN-MOLD FOAM-MOLDING AND METHOD FOR PRODUCING THE SAME, AS WELL AS METHOD FOR PRODUCING POLYLACTIC ACID-BASED RESIN FOAM-MOLDED ARTICLE
    144.
    发明申请
    POLYLACTIC ACID-BASED RESIN FOAMED PARTICLES FOR IN-MOLD FOAM-MOLDING AND METHOD FOR PRODUCING THE SAME, AS WELL AS METHOD FOR PRODUCING POLYLACTIC ACID-BASED RESIN FOAM-MOLDED ARTICLE 有权
    用于模内泡沫模塑的聚酰胺酸树脂泡沫颗粒及其生产方法,以及用于生产基于聚酰胺酸树脂的泡沫塑料制品的方法

    公开(公告)号:US20100136338A1

    公开(公告)日:2010-06-03

    申请号:US12593293

    申请日:2008-03-27

    Abstract: The present invention provides a method for producing polylactic acid-based resin foamed particles for in-mold foam-molding from which a polylactic acid-based resin foam-molded article excellent in heat resistance and mechanical strength can be obtained by in-mold foam-molding. In the method of the present invention for producing polylactic acid-based resin foamed particles for in-mold foam-molding, a rotary blade is rotated at a given rotation speed while being always in contact with the front end surface of a nozzle and a polylactic acid-based resin extrudate extrusion-foamed through a nozzle is cut with the rotary blade, so that it is possible to cut the polylactic acid-based resin extrudate surely to obtain substantially spherical polylactic acid-based resin foamed particles. Therefore, when polylactic acid-based resin foamed particles are used for in-mold foam-molding, the polylactic acid-based resin foamed particles foam uniformly in all directions and, as a result, the foamed particles are thermal fusin bonded to unite together strongly in all direction.

    Abstract translation: 本发明提供了一种用于模内发泡成型的聚乳酸类树脂发泡粒子的制造方法,通过模内发泡成型法可以获得耐热性和机械强度优异的聚乳酸类树脂发泡成型体, 成型。 在本发明的用于模内发泡成型的聚乳酸类树脂发泡粒子的制造方法中,旋转刀片以一定的转速旋转,同时始终与喷嘴的前端面接触,聚乳酸 通过旋转刀片切割通过喷嘴挤出发泡的酸性树脂挤出物,从而可以确切地切割聚乳酸类树脂挤出物,以获得基本上为球形的聚乳酸类树脂发泡颗粒。 因此,当聚乳酸类树脂发泡粒子用于模内发泡成型时,聚乳酸类树脂发泡粒子在各个方向均匀发泡,结果发泡粒子结合成团聚强度 在所有方向。

    FOAMED SHEET OF POLYLACTIC ACID RESIN, FOAM MOLDING OF POLYLACTIC ACID RESIN AND METHOD OF PREPARING FOAM MOLDING
    146.
    发明申请
    FOAMED SHEET OF POLYLACTIC ACID RESIN, FOAM MOLDING OF POLYLACTIC ACID RESIN AND METHOD OF PREPARING FOAM MOLDING 审中-公开
    聚酰胺酸树脂的泡沫片,聚酰胺树脂的泡沫成型及其制备方法

    公开(公告)号:US20100086758A1

    公开(公告)日:2010-04-08

    申请号:US12622878

    申请日:2009-11-20

    Abstract: A foamed sheet of a base resin containing 50 to 100% by weight of a polylactic acid resin and having an apparent density of 63 to 630 kg/m3, a thickness of 0.5 to 7 mm and endothermic and exothermic calorific values of ΔHendo:2 and ΔHexo:2, respectively, as measured by heat flux differential scanning calorimetry at a heating rate of 2° C./min. The endothermic calorific value ΔHendo:2 is at least 10 J/g and the difference (ΔHendo:2-ΔHexo:2) between the endothermic calorific value ΔHendo:2 and the exothermic calorific value ΔHexo:2 is more than 20 J/g and less than 40 J/g. A foam molding such as a receptacle is prepared by thermoforming the foamed sheet.

    Abstract translation: 含有50〜100重量%的聚乳酸树脂,表观密度为63〜630kg / m 3,厚度为0.5〜7mm,吸热放热发热量Hodo: 2和&Dgr; Hexo:2,通过热通量差示扫描量热法以2℃/ min的加热速率测量。 吸热量值Dgr; Hendo:2吸热热值与Dgr; Hendo:2和放热热值Dgr之间的差异(&Dgr; Hendo:2-&Dgr; Hexo:2)至少为10 J / g :2多于20J / g,小于40J / g。 通过热成型发泡片材来制备诸如容器的泡沫塑料模制品。

    Shapeable resin compositions
    147.
    发明授权
    Shapeable resin compositions 失效
    可塑性树脂组合物

    公开(公告)号:US07659331B2

    公开(公告)日:2010-02-09

    申请号:US11131694

    申请日:2005-05-17

    Abstract: The present invention provides a shapeable resin-containing composition comprising at least one saccharide ester, preferably according to Formula I. wherein “A” is hydrogen or has the structure of Structure I: wherein “R” is an aliphatic or aromatic moiety of about eight to about 40 carbon atoms, and wherein at least one “A” moiety of Formula I is a moiety of Structure I. Also provided are shaping methods and shaped products based on the present compositions.

    Abstract translation: 本发明提供了含有至少一种糖酯的可成型含树脂组合物,优选根据式I,其中“A”为氢或具有结构I的结构:其中“R”为约8的脂族或芳族部分 至约40个碳原子,并且其中式I的至少一个“A”部分是结构I的部分。还提供了基于本发明组合物的成型方法和成型产品。

    EXTRUDED, LOW DENSITY POLYETHYLENE FOAM
    148.
    发明申请
    EXTRUDED, LOW DENSITY POLYETHYLENE FOAM 有权
    挤出,低密度聚乙烯泡沫

    公开(公告)号:US20090305029A1

    公开(公告)日:2009-12-10

    申请号:US12400602

    申请日:2009-03-09

    Applicant: Craig Cushman

    Inventor: Craig Cushman

    Abstract: An extruded, low density, ethylenic polymer foam including from about 86% by volume to about 98% by volume open cells and a continuous, impervious surface skin is disclosed. The foam possesses superior compression recovery and lower compression resistance when compared with similarly comprised ethylenic closed cell foams and superior moisture resistance and handling characteristics when compared to open cell foams. A precursor composition and method for making the extruded, low density, ethylenic polymer foam are also disclosed.

    Abstract translation: 公开了挤出的低密度乙烯聚合物泡沫体,其包括约86体积%至约98体积%的开孔和连续的,不透水的表面皮肤。 与类似的烯属闭孔泡沫相比,与开孔电池泡沫相比,该泡沫具有优异的压缩恢复性和较低的抗压缩性,并且具有优异的耐湿性和操作特性。 还公开了用于制备挤出的低密度乙烯类聚合物泡沫体的前体组合物和方法。

    METHOD FOR PRODUCING MICROPOROUS SHEET
    149.
    发明申请
    METHOD FOR PRODUCING MICROPOROUS SHEET 有权
    生产微孔板的方法

    公开(公告)号:US20090246503A1

    公开(公告)日:2009-10-01

    申请号:US12059145

    申请日:2008-03-31

    Abstract: Provided is a method of producing a microporous sheet material of a polymeric matrix of polyolefin, with finely divided and substantially water-insoluble filler distributed throughout the matrix, and a network of interconnecting pores communicating throughout the microporous material. The method includes: (a) forming a mixture of polyolefin, filler and a processing plasticizer composition; (b) extruding the mixture to form a continuous sheet; and (c) contacting the continuous sheet with a non-flammable extraction fluid composition to extract the processing plasticizer composition from the continuous sheet. The extraction fluid has a boiling point of 75° C. or less, and is essentially free of trichloroethylene. The microporous sheet material has Tensile Strength equal to or greater than 800 kPa. A microporous sheet material also is provided.

    Abstract translation: 提供了一种生产聚烯烃聚合物基质的微孔片材的方法,其具有分布在整个基质中的细分和基本上不溶于水的填料,以及在整个微孔材料中连通的互连孔的网络。 该方法包括:(a)形成聚烯烃,填料和加工增塑剂组合物的混合物; (b)挤出混合物以形成连续片; 和(c)使连续片材与不可燃提取液组合物接触,以从连续片材中提取加工增塑剂组合物。 提取液的沸点为75℃以下,基本上不含三氯乙烯。 微孔片材具有等于或大于800kPa的拉伸强度。 还提供了微孔片材。

    Melt processed materials for medical articles
    150.
    发明申请
    Melt processed materials for medical articles 审中-公开
    用于医疗用品的熔融加工材料

    公开(公告)号:US20090156772A1

    公开(公告)日:2009-06-18

    申请号:US12001656

    申请日:2007-12-12

    Abstract: In accordance with an aspect of the invention, methods of forming medical articles are provided, which comprise (a) preparing a melt phase that comprises a molten polymer and a supercritical fluid, (b) forming a polymeric region from the melt phase, and (c) cooling the polymeric region. In certain embodiments, the supercritical fluid is formed from chemical species (e.g., CO2, propane, etc.) that are gases at room temperature (25° C.) and atmospheric pressure (1 atm). According to another aspect of the present invention, medical articles are provided which comprise melt-processed polymeric materials. The polymeric materials have a composition that cannot be melt processed without the use of melt-viscosity reducing additives due to thermal degradation, and yet the polymeric material does not contain such additives.

    Abstract translation: 根据本发明的一个方面,提供了形成医疗制品的方法,其包括(a)制备包含熔融聚合物和超临界流体的熔融相,(b)从熔融相形成聚合物区域,和 c)冷却聚合物区域。 在某些实施方案中,超临界流体由在室温(25℃)和大气压(1atm)下为气体的化学物质(例如,CO 2,丙烷等)形成。 根据本发明的另一方面,提供了包含熔融加工的聚合材料的医疗制品。 聚合物材料具有不会由于热降解而不使用熔融粘度降低添加剂而不能熔融加工的组合物,而聚合物材料不含有这些添加剂。

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