中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1125 records (took 0.026 seconds)

    Heat resistant polypropylene film
    131.
    发明申请
    Heat resistant polypropylene film 有权
    耐热聚丙烯薄膜

    公开(公告)号：US20080281048A1

    公开(公告)日：2008-11-13

    申请号：US11801536

    申请日：2007-05-10

    Applicant: Rodolfo Mier ,  Mark Miller

    Inventor： Rodolfo Mier ,  Mark Miller

    IPC: C08L23/12

    CPC classification number: B32B27/32 ,  B32B27/08 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2307/306 ,  B32B2307/558 ,  B32B2307/581 ,  B32B2307/5825 ,  B32B2307/704 ,  B32B2439/00 ,  B32B2553/00 ,  C08J5/18 ,  C08J2323/12 ,  Y10T428/31909

    Abstract: A heat resistant film that comprises at least one layer that comprises a high crystallinity propylene polymer having a melt flow rate of from 0.5 g/10 min. to 15 g/10 min. and a xylene solubles of less than 3.5%. The propylene polymer may have a melting point above 158° C. The heat resistant film may further comprise at least a second layer, which may be a heterophasic random copolymer. The heat resistant film may be, for example, a blown film, a cast film, or an oriented film, and may be used in such articles of manufacture as construction films, retort packaging, and laminated articles.

    Abstract translation: 一种耐热膜，其包含至少一层包含熔体流动速率为0.5g / 10min的高结晶度丙烯聚合物。 至15g / 10min。 和二甲苯可溶物少于3.5％。 丙烯聚合物可以具有高于158℃的熔点。耐热膜可以进一步包含至少第二层，其可以是多相无规共聚物。 耐热膜可以是例如吹塑薄膜，流延薄膜或取向薄膜，并且可以用于制造制造例如建筑薄膜，蒸煮包装和层压制品。

    POLYMERIZATION CATALYST SYSTEM UTILIZING EXTERNAL DONOR SYSTEMS AND PROCESSES OF FORMING POLYMERS THEREWITH
    132.
    发明申请
    POLYMERIZATION CATALYST SYSTEM UTILIZING EXTERNAL DONOR SYSTEMS AND PROCESSES OF FORMING POLYMERS THEREWITH 失效
    利用外部离子体系的聚合催化剂体系及其形成聚合物的方法

    公开(公告)号：US20080249274A1

    公开(公告)日：2008-10-09

    申请号：US12140821

    申请日：2008-06-17

    Applicant: Kenneth Blackmon ,  Shabbir Malbari

    Inventor： Kenneth Blackmon ,  Shabbir Malbari

    IPC: C08F110/06 ,  C09K3/00

    CPC classification number: C08F4/6465 ,  B01J31/0212 ,  B01J2231/12 ,  C08F110/06 ,  Y02P20/52 ,  C08F2500/15 ,  C08F2500/26

    Abstract: External donor systems, catalyst systems and olefin polymerization processes are described herein. The external donor systems generally include a first external donor represented by the general formula SiR2m(OR3)4-m, wherein each R2 is independently selected from alkyls, cycloalkyls, aryls and vinyls, each R3 is independently selected from alkyls and m is from 0 to 4. The external donor systems further include a second external donor represented by the general formula SiR4m(OR5)4-m, wherein each R4 is independently selected from alkyls, cycloalkyls, aryls and vinyls, each R5 is independently selected from alkyls, m is from 0 to 4 and at least one R4 is a C3 or greater alkyl.

    Abstract translation: 本文描述了外部供体系统，催化剂体系和烯烃聚合方法。 外部供体系统通常包括由通式SiR 2 O 3（OR 3）4-m表示的第一外部供体， 其中每个R 2独立地选自烷基，环烷基，芳基和乙烯基，每个R 3独立地选自烷基，m是0至4。 外部供体系统还包括由通式SiR 4（OR 5）4-m表示的第二外部给体， 其中每个R 4独立地选自烷基，环烷基，芳基和乙烯基，每个R 5独立地选自烷基，m是0-4，和 至少一个R 4是C 3或更高级的烷基。

    Alkylation Process
    134.
    发明申请
    Alkylation Process 审中-公开
    烷基化方法

    公开(公告)号：US20080242906A1

    公开(公告)日：2008-10-02

    申请号：US12119171

    申请日：2008-05-12

    Applicant: James R. Butler ,  Kevin P. Kelly

    Inventor： James R. Butler ,  Kevin P. Kelly

    IPC: C07C2/58

    CPC classification number: C07C2/66 ,  C07C6/126 ,  Y02P20/544 ,  C07C15/073

    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase in a reaction zone containing a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. A polyethylbenzene is supplied into the reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 20-500. The reaction zone is operated at temperature and pressure conditions in which benzene is in the supercritical phase to cause ethylation of the benzene and the transalkylation of polyethylbenzene and benzene in the presence of the zeolite beta catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated byproducts of no more than 60 wt. % of the ethylbenzene. The alkylation reaction zone is operated under conditions providing a composite byproduct yield of propyl benzene and butyl benzene relative to ethylbenzene, which is no more than one half of the corresponding yield byproduct for zeolite beta promoted with lanthanum. The production of ethylbenzene in the critical phase alkylation reaction zone is attended by recycle of a polyalkylated aromatic component of the reaction product back to the reaction zone.

    Abstract translation: 在包含铈促进沸石β的分子筛芳族烷基化催化剂的反应区中通过苯在临界阶段乙苯化生产乙苯的方法。 将聚乙苯供入反应区并与二氧化硅/氧化铝摩尔比在20-500范围内的铈促进沸石β接触。 反应区在苯处于超临界阶段的温度和压力条件下进行，以在沸石β催化剂存在下引起苯的乙基化和多乙基苯和苯的烷基转移。 生产含有乙苯作为主要产物的烷基化产物，伴随产生不超过60重量％的较重烷基化副产物。 ％的乙苯。 烷基化反应区在相对于乙苯提供丙基苯和丁基苯的复合副产物产率的条件下操作，其不超过用镧促进的沸石β的相应产率副产物的一半。 通过将反应产物的多烷基化芳族组分再循环回到反应区，可以在临界相烷基化反应区中生产乙苯。

    Polypropylene article and method of preparing polypropylene article
    135.
    发明授权
    Polypropylene article and method of preparing polypropylene article 失效
    聚丙烯制品及其制备方法

    公开(公告)号：US07413812B2

    公开(公告)日：2008-08-19

    申请号：US11114377

    申请日：2005-04-26

    Applicant: Lisa Albe

    Inventor： Lisa Albe

    IPC: B28B21/00 ,  B29C55/00

    CPC classification number: B32B27/32 ,  B32B7/005 ,  B32B7/02 ,  B32B27/08 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2307/412 ,  B32B2307/558 ,  B32B2439/46 ,  B32B2439/62 ,  B32B2439/70 ,  B32B2439/80 ,  B32B2509/00 ,  B32B2605/08 ,  Y10T428/1317 ,  Y10T428/31909 ,  Y10T428/31913 ,  Y10T428/31938

    Abstract: A thermoformed polypropylene article, or sheet for preparing such articles, is formed from a layer of substantially syndiotactic polypropylene and a thin outer layer of substantially isotactic polypropylene that is joined to the layer of syndiotactic polypropylene. At least one of the layers is a non-oriented layer. Two layers of isotactic polypropylene may be used with the layer of syndiotactic polypropylene, so that the syndiotactic polypropylene is sandwiched between the two layers of isotactic polypropylene. The use of the isotactic polypropylene enhances the processability of the syndiotactic polypropylene, which is oftentimes difficult to process because of its lower melting point and slow solidification rate. Because the sheet is comprised predominantly of syndiotactic polypropylene, utilizing only thin outer layers of isotactic polypropylene, it has better transparency and higher impact strength than those conventional articles formed entirely of isotactic polypropylene.

    Abstract translation: 用于制备这种制品的热成型聚丙烯制品或片材由基本间同立构聚丙烯层和连接到间同立构聚丙烯层的基本上全同立构聚丙烯的薄层外层形成。 层中的至少一个是非取向层。 间同立构聚丙烯层可以使用两层全同立构聚丙烯，间同立构聚丙烯夹在两层全同立构聚丙烯之间。 全同立构聚丙烯的使用提高了间同立构聚丙烯的加工性能，因为它具有较低的熔点和较低的固化速度，这通常难于加工。 由于片材主要由间同立构聚丙烯组成，仅利用全同立构聚丙烯的薄层外层，与完全由全同立构聚丙烯形成的常规制品相比，其具有更好的透明度和更高的冲击强度。

    Biaxially-oriented metallocene-based polypropylene films having reduced thickness
    137.
    发明申请
    Biaxially-oriented metallocene-based polypropylene films having reduced thickness 失效
    双轴取向金属茂基聚丙烯薄膜，厚度减小

    公开(公告)号：US20080177018A1

    公开(公告)日：2008-07-24

    申请号：US11656247

    申请日：2007-01-22

    Applicant: Scott D. Cooper

    Inventor： Scott D. Cooper

    IPC: C08F10/06

    CPC classification number: C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08J5/18 ,  C08J2323/12 ,  Y10S428/91 ,  C08F2500/15 ,  C08F2500/14 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/11 ,  C08F210/16

    Abstract: A polymer film having a thickness of 10 microns or less and improved barrier characteristics to both water vapor and oxygen is formed from a biaxially-oriented polypropylene film of isotactic polypropylene. The polypropylene is prepared by the polymerization of propylene in the presence of an isospecific metallocene catalyst. The film has a permeability to water vapor of less than about 2.5 g/m2day/25 μm and a permeability to oxygen of less than about 2200 cc/m2day/25 μm. The film also has a haze properties of less than about 1%. The polypropylene contains 0.1 to 1% 2,1 insertions and has an isotacticity of at least 96% meso pentads. The isotactic polypropylene thus produced is then extruded into a sheet that is biaxially-oriented by stressing the sheet in the transverse and longitudinal directions to a draw ratio of at least about 6:1 in the transverse direction, and at least about 4:1 in the longitudinal direction.

    Abstract translation: 由全同立构聚丙烯的双轴取向聚丙烯膜形成厚度为10微米或更小并且对水蒸汽和氧气均具有改善的阻挡特性的聚合物膜。 聚丙烯通过丙烯在异相茂金属催化剂存在下的聚合制备。 该膜具有小于约2.5g / m 2 /天/25μm的水蒸气渗透性，并且对氧的渗透性小于约2200cc / m 2日 / 25妈妈。 该膜还具有小于约1％的雾度特性。 聚丙烯含有0.1至1％的2,1插入并且具有至少96％的内消旋五单元组的全同立构规整度。 然后将如此制备的全同立构聚丙烯挤压成双轴取向的片材，该片材沿横向和纵向施加片材的横向拉伸比至少约6:1，并且至少约4:1 纵向。

    Method for reducing residual monomer in a polymer matrix
    138.
    发明授权
    Method for reducing residual monomer in a polymer matrix 有权
    用于还原聚合物基质中残留单体的方法

    公开(公告)号：US07396879B2

    公开(公告)日：2008-07-08

    申请号：US11062369

    申请日：2005-02-22

    Applicant: Jay Reimers

    Inventor： Jay Reimers

    IPC: C08F6/06 ,  C08F6/10 ,  C08F6/14 ,  C08F6/24 ,  C08F6/26

    CPC classification number: C08F6/006

    Abstract: Residual monomer in a polymer matrix may be reduced by a method including admixing a polymer matrix comprising an amount of residual monomer and a conjugated diene. This method can be carried out under reaction conditions such that the amount of residual monomer is reduced. The monomer comprises at least one electron withdrawing substituent and the conjugated diene comprises at least one electron donating substituent. This method is particularly useful for reducing the amount of residual styrene monomer in polystyrene homopolymer and copolymer compositions.

    Abstract translation: 聚合物基质中的残余单体可以通过包括混合包含一定量残余单体和共轭二烯的聚合物基质的方法来还原。 该方法可以在反应条件下进行，使得残留单体的量减少。 单体包含至少一个吸电子取代基，共轭二烯包含至少一个给电子取代基。 该方法对于降低聚苯乙烯均聚物和共聚物组合物中残留苯乙烯单体的量是特别有用的。

    Critical Phase Alkylation Process
    140.
    发明申请
    Critical Phase Alkylation Process 审中-公开
    临界相烷基化工艺

    公开(公告)号：US20080058567A1

    公开(公告)日：2008-03-06

    申请号：US11851896

    申请日：2007-09-07

    Applicant: James Butler ,  Kevin Kelly

    Inventor： James Butler ,  Kevin Kelly

    IPC: C07C15/073 ,  C07C2/66

    CPC classification number: C07C2/66 ,  C07C6/126 ,  C07C2529/70 ,  Y02P20/544 ,  C07C15/073

    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst. An aromatic feedstock having a benzene content of at least 90 wt. % is supplied into a reaction zone into contact with a zeolite beta alkylation catalyst having a silica/alumina ratio within the range of 20-500, specifically 50-150. The alkylation catalyst is a zeolite beta specifically a lanthanum-modified zeolite beta. Ethylene is supplied to the reaction zone to provide a benzene/ethylene mole ratio of 1-15. The reaction zone is operated under conditions in which benzene is in the supercritical phase to produce an alkylation product containing ethylbenzene as a primary product with heavier alkylated by-products of no more than 60 wt. % of the ethylbenzene. The alkylation product is recovered from the reaction zone and supplied to a separation and recovery zone to separate ethylbenzene from a polyalkylated component including diethylbenzene. At least a portion of the polyalkylated component is supplied to a transalkylation reaction zone containing a molecular sieve transalkylation catalyst. The transalkylation reaction zone contains a zeolite Y catalyst and is operated under liquid phase conditions.

    Abstract translation: 通过在分子筛芳族烷基化催化剂上的临界相中苯的乙基化生产乙苯的方法。 苯含量至少为90wt。％的芳族原料。 将％加入到与二氧化硅/氧化铝比在20-500，特别是50-150范围内的沸石β烷基化催化剂接触的反应区中。 烷基化催化剂是沸石β特别是镧改性沸石β。 将乙烯供应至反应区以提供1-15的苯/乙烯摩尔比。 反应区在苯处于超临界阶段的条件下运行，以产生含有乙苯作为主要产物的烷基化产物，其中较重的烷基化副产物不超过60wt。 ％的乙苯。 将烷基化产物从反应区回收并供给到分离和回收区，以从包含二乙基苯的多烷基化组分分离乙苯。 将至少一部分多烷基化组分供应到含有分子筛烷基转移催化剂的烷基转移反应区。 烷基转移反应区含有沸石Y催化剂，并在液相条件下运行。

Patent Agency Ranking