HIGH DENSITY POLYETHYLENE FILM WITH HIGH BIAXIAL ORIENTATION
    2.
    发明申请
    HIGH DENSITY POLYETHYLENE FILM WITH HIGH BIAXIAL ORIENTATION 审中-公开
    高密度聚乙烯薄膜高双向定向

    公开(公告)号:WO1998014491A1

    公开(公告)日:1998-04-09

    申请号:PCT/US1997014916

    申请日:1997-08-25

    Abstract: A high density polyethylene (HDPE) film is provided having high biaxial orientation. The film includes HDPE having a density of at least 0.940, and a melt index of from 0.5 to 10. The film is stretched in the machine (longitudinal) direction to a degree of from 5:1 to 8:1, preferably from 6:1 to 7:1. The film is also stretched in the transverse (lateral) direction to a degree of from 6:1 to 15:1, preferably from 9:1 to 13:1. Preferably, the film has an orientation imbalance, with a higher degree of transverse orientation than machine orientation. Skin layers such as heat seal layers can be provided. Preferably, the film contains one or more layers of a casting promoter material employed to promote casting of a high gauge HDPE sheet subsequently high biaxially oriented to provide the film. The film can also be cavitated, or otherwise modified (e.g., corona-treated, coated, metallized, etc.) to provide films suitable for special applications. The film of the invention has superior properties, including lower water vapor transmission rate, better dead-fold, higher tensile strength, and consistent gauge profile. Also provided is a method for making the biaxially oriented film.

    Abstract translation: 提供具有高双轴取向的高密度聚乙烯(HDPE)膜。 该膜包括密度为至少0.940,熔体指数为0.5至10的HDPE。该膜在机器(纵向)方向上被拉伸至5:1至8:1,优选6:1至5:1的程度。 1到7:1。 膜也在横向(横向)方向上拉伸至6:1至15:1,优选9:1至13:1的程度。 优选地,该膜具有取向不平衡,横向取向比机器方向更高。 可以提供诸如热封层之类的皮肤层。 优选地,该膜含有一层或多层浇铸促进剂材料,用于促进高规格HDPE片的铸造,然后高双轴取向以提供该膜。 也可以将膜气蚀或以其它方式进行改性(例如电晕处理,涂覆,金属化等)以提供适合于特殊应用的膜。 本发明的膜具有优异的性能,包括较低的水蒸汽透过率,更好的死角,更高的拉伸强度和一致的量规。 还提供了制造双轴取向膜的方法。

    SYNTHESIS OF M41S MATERIALS
    5.
    发明申请
    SYNTHESIS OF M41S MATERIALS 审中-公开
    M41S材料的合成

    公开(公告)号:WO1998006665A1

    公开(公告)日:1998-02-19

    申请号:PCT/US1997013952

    申请日:1997-08-12

    CPC classification number: C01B37/00 C01B37/02

    Abstract: M41S materials are synthesized from an aqueous reaction mixture comprising sources of an oxide of a tetravalent element Y, hydroxyl ions and an organic surfactant R', wherein R' comprises an ion of the formula R1R2R3R4Q , wherein Q is nitrogen or phosphorus and wherein at least one of R1, R2, R3 and R4 is aryl or alkyl of from 6 to about 36 carbon atoms or combinations thereof, the remainder of R1, R2, R3 and R4 being selected from the group consisting of hydrogen, alkyl of from 1 to 5 carbon atoms and combinations thereof, and wherein the OH/surfactant molar ratio is in the approximate range 0.9-1.2, more preferably 1.0-1.15. By controlling the surfactant level within the above ranges it is found that high quality M41S materials with excellent adsorption properties can be produced at surfactant utilization levels.

    Abstract translation: M41S材料由包含四价元素Y,羟基离子和有机表面活性剂R'的氧化物源的水性反应混合物合成,其中R'包含式R 1 R 2 R 3 R 4 Q +的离子,其中Q为氮或磷, 其中R 1,R 2,R 3和R 4中的至少一个为6至约36个碳原子的芳基或烷基或其组合,R 1,R 2,R 3和R 4的其余部分选自氢, 1至5个碳原子及其组合,并且其中OH /表面活性剂的摩尔比在约0.9-1.2,更优选1.0-1.15的范围内。 通过控制表面活性剂含量在上述范围内,可以发现在表面活性剂利用水平下可以生产具有优异吸附性能的高品质M41S材料。

    OPAQUE POLYMERIC FILMS AND PROCESSES FOR MAKING SAME
    6.
    发明申请
    OPAQUE POLYMERIC FILMS AND PROCESSES FOR MAKING SAME 审中-公开
    OPAQUE POLYMERIC膜和制造方法

    公开(公告)号:WO1998004409A1

    公开(公告)日:1998-02-05

    申请号:PCT/US1997012063

    申请日:1997-07-11

    Abstract: An opaque, oriented polymeric film structure (10) is described. The film structure has a plurality of voids (12), at least some of the voids not containing a void-initiating particle (14) and at least some of the voids being interconnected with an adjacent void in the polymeric matrix material, the number of voids being sufficient to impart a significant degree of opacity in the film structure.

    Abstract translation: 描述了不透明的取向聚合物膜结构(10)。 薄膜结构具有多个空隙(12),至少一些空隙不包含空隙引发颗粒(14),并且至少一些空隙与聚合物基体材料中的相邻空隙互连, 空隙足以在膜结构中赋予显着程度的不透明度。

    FLUID CATALYTIC ALKYLATION PROCESS
    9.
    发明申请
    FLUID CATALYTIC ALKYLATION PROCESS 审中-公开
    流体催化烷基化方法

    公开(公告)号:WO1997045383A1

    公开(公告)日:1997-12-04

    申请号:PCT/US1997008143

    申请日:1997-04-21

    Abstract: The instant invention relates to a fluid catalytic isoparaffin-olefin alkylation process in which a circulating fluidized-bed reactor is employed and the catalyst is continuously regenerated. A solid catalyst which comprises a large pore zeolite contacts the feed in the riser of the reactor. Both the feed and the catalysts are maintained in vapor phase. Following recovery from the product, at least a portion of the catalyst is recycled to the reactor following steam stripping and gas purging. The remainder is passed to the regenerator for the removal of coke, then is recycled to the riser. C5+ alkylate product and isobutane are separated from the hydrocarbon effluent. Isobutane is recycled to the riser.

    Abstract translation: 本发明涉及使用循环流化床反应器并且催化剂连续再生的流化催化异链烷烃 - 烷基化方法。 包含大孔沸石的固体催化剂与反应器的提升管中的进料接触。 进料和催化剂都保持在气相中。 在从产物回收之后,至少一部分催化剂在蒸汽汽提和气体净化之后再循环到反应器中。 其余部分通过再生器去除焦炭,然后再循环至提升管。 从烃流出物中分离C5 +烷基化物产物和异丁烷。 异丁烷被回收到提升管中。

    HIGH IMPACT LLDPE FILMS
    10.
    发明申请
    HIGH IMPACT LLDPE FILMS 审中-公开
    高强度LLDPE膜

    公开(公告)号:WO1997039035A1

    公开(公告)日:1997-10-23

    申请号:PCT/US1997005657

    申请日:1997-04-04

    Abstract: Blown films of linear low density polyethylene are produced by a high stalk process comprising extruding the linear low density polyethylene through an annular die to form an extruded tube of molten material, cooling the extruded tube while drawing the tube so cooled, to maintain the tube diameter identical to that of the annular die and expanding the tube or bubble to attenuate the walls thereof by introducing a gas to the interior of the tube or bubble. The resulting films are characterized by superior impact strength and MD tear resistance.

    Abstract translation: 线性低密度聚乙烯的吹塑薄膜是通过高秸秆方法生产的,包括通过环形模头挤出线性低密度聚乙烯,形成挤出的熔融材料管,冷却挤压管,同时拉制冷却管,以保持管直径 与环形模具相同,并且通过将气体引导到管或气泡的内部而膨胀管或气泡以减弱其壁。 所得膜的特征在于优异的冲击强度和MD抗撕裂性。

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