中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

57 records (took 0.122 seconds)

    Fracturing different levels within a completion interval of a well
    5.
    发明授权
    Fracturing different levels within a completion interval of a well 有权

    公开(公告)号：US07108060B2

    公开(公告)日：2006-09-19

    申请号：US10659818

    申请日：2003-09-11

    Applicant: Lloyd G. Jones

    Inventor： Lloyd G. Jones

    IPC: E21B43/267 ,  E21B43/26

    CPC classification number: H04B7/10 ,  E21B43/088 ,  E21B43/26 ,  H01Q3/2611 ,  H01Q21/24 ,  H04B7/0857 ,  H04B7/086

    Abstract: Method and apparatus for fracturing different levels of a completion interval in a well. A workstring lowers a fracturing string which, in turn, is comprised of a base pipe which is blank except for perforated sections spaced along its length. Screen may be provided over said sections to block the flow of sand into the base pipe. An alternate flow path (e.g. shunt tubes) extends along the base pipe and has one or more outlets spaced along its length. A slurry is flowed into the annulus surrounding the fracturing string. As liquid is lost from the slurry, sand from the slurry will form bridges at said perforated sections thereby isolating portions of the annulus. Slurry then flows through the shunts tube(s) and out into the isolated portions to fracture the different levels in the completion interval.

    Process for preparing short chain alkyl aromatic compounds
    7.
    发明授权
    Process for preparing short chain alkyl aromatic compounds 失效
    制备短链烷基芳族化合物的方法

    公开(公告)号：US06919491B1

    公开(公告)日：2005-07-19

    申请号：US08853007

    申请日：1997-05-08

    Applicant: Jane Chi-Ya Cheng ,  Terry Eugene Helton ,  Dominick Nicholas Mazzone ,  Dennis E. Walsh

    Inventor： Jane Chi-Ya Cheng ,  Terry Eugene Helton ,  Dominick Nicholas Mazzone ,  Dennis E. Walsh

    IPC: C07C2/66 ,  C07C2/68 ,  C07C4/18

    CPC classification number: C07C2/66 ,  C07C15/073

    Abstract: A process for producing alkyl aromatic compounds which comprises contacting at least one aromatic compound with at least one alkylating agent or transalkylating agent possessing at least one aliphatic group having from 1 to 5 carbon atoms under alkylation or transalkylation reaction conditions and in the presence of an alkylation or transalkylation catalyst, to provide an alkylated aromatic product possessing at least one alkyl group derived from said alkylating agent or transalkylating agent, said catalyst comprising a binder-free molecular sieve having an X-ray diffraction pattern that includes the lines set forth in Table A.

    Abstract translation: 一种制备烷基芳族化合物的方法，其包括在烷基化或烷基转移反应条件下和在烷基化存在下使至少一种芳族化合物与至少一种具有至少一个具有1-5个碳原子的脂肪族基团的烷基化剂或烷基转移剂接触 或烷基转移催化剂，以提供具有至少一种衍生自所述烷基化剂或烷基转移剂的烷基的烷基化芳族产物，所述催化剂包含具有X射线衍射图的无粘合剂分子筛，其包括表A所示的线 。

    Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds
    8.
    发明授权
    Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds 有权
    液相芳烃烷基化方法，包括用极性化合物原位催化剂再活化

    公开(公告)号：US06909026B2

    公开(公告)日：2005-06-21

    申请号：US10318882

    申请日：2002-12-13

    Applicant: Ajit B. Dandekar ,  Thomas Francis Degnan ,  John P. McWilliams ,  Chaya R. Venkat

    Inventor： Ajit B. Dandekar ,  Thomas Francis Degnan ,  John P. McWilliams ,  Chaya R. Venkat

    IPC: C07C2/66 ,  C07C2/68

    CPC classification number: C07C2/66 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/50 ,  C07C2529/65 ,  C07C2529/70 ,  Y02P20/584 ,  C07C15/073

    Abstract: The catalyst becomes at least partially deactivated by sorbing catalyst poisons present in the feed during a process for alkylating aromatics by contacting a feed containing benzene, toluene, xylenes, alkylbenzenes, naphthalene or substituted naphthalenes under liquid phase alkylating conditions with C2-C16 olefins in the presence of MCM-22, MCM-36, MCM-49, MCM-56, ZSM-5, ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-48, ZSM-50, ZSM-4, ZSM-18, ZSM-20, Zeolite X, Zeolite Y, USY, mordenite or offretite to provide an alkylated aromatic product. The at least partially deactivated catalyst can be treated in situ by contacting with at least one polar compound having a dipole moment of at least 0.05 Debyes and selected from the group consisting of acetic acid, formic acid, water, and carbon monoxide, under conditions of temperature and pressure employed in the liquid phase alkylating conditions which are sufficient to at least partially desorb the catalyst poison from the catalyst.

    Abstract translation: 在芳族化合物的烷基化方法中，通过在液相烷基化条件下将含有苯，甲苯，二甲苯，烷基苯，萘或取代萘的进料与C 2 H 2化合物接触，使催化剂至少部分失活， 在MCM-22，MCM-36，MCM-49，MCM-56，ZSM-5，ZSM-11，ZSM-12，ZSM-23等的存在下， ZSM-35，ZSM-48，ZSM-50，ZSM-4，ZSM-18，ZSM-20，沸石X，沸石Y，USY，丝光沸石或黑斑，提供烷基化芳族产物。 所述至少部分失活的催化剂可以通过与至少一种偶极矩至少为0.05德拜的极性化合物接触而原位处理，并选自乙酸，甲酸，水和一氧化碳，条件是 在液相烷基化条件下使用的足以使催化剂毒物至少部分解吸的催化剂的温度和压力。

    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution
    9.
    发明授权
    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution 失效
    用于乙烯聚合反应的双金属催化剂具有均匀的组分分布

    公开(公告)号：US06855654B2

    公开(公告)日：2005-02-15

    申请号：US10244930

    申请日：2002-09-16

    Applicant: Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    Inventor： Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    IPC: B01J31/12 ,  B01J31/14 ,  B01J31/16 ,  B01J31/22 ,  B01J37/02 ,  C08F4/02 ,  C08F4/50 ,  C08F4/619 ,  C08F4/622 ,  C08F4/623 ,  C08F4/64 ,  C08F4/642 ,  C08F10/00 ,  C08F4/44

    CPC classification number: B01J31/1616 ,  B01J31/122 ,  B01J31/143 ,  B01J31/2295 ,  B01J37/0203 ,  B01J37/0205 ,  B01J2531/48 ,  C08F4/61904 ,  C08F4/61912 ,  C08F4/61916 ,  C08F10/00 ,  Y10S526/943

    Abstract: The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising (1) providing silica which is porous and has a particle size of 1 to 250 microns, having pores which have an average diameter of 50 to 500 Angstroms and having a pore volume of 0.5 to 5.0 cc/g; (2) slurrying the silica in an aliphatic solvent having a boiling point less than 110° C.; (3) providing a volume of a solution comprising the metallocene complex, alumoxane of formulas R—(Al(R)—O—)x—AlR2 for oligomeric linear alumoxanes and (—Al(R)—O—)y for cyclic alumoxanes wherein x is 1-40, y is 3-40, and R is a C1-C8 alkyl group in an aromatic and a solvent wherein the volume of solution is less than that required to form a slurry of the silica, wherein the concentration of alumoxane, expressed as Al weight percent, is 5 to 20; (4) contacting the silica slurry (2) with said volume of said solution (3) and allowing the solution to impregnate the pores of silica and, to disperse the metallocene in and on the carrier; (5)evaporating the solvents from the contacted and impregnated silica to recover dry free-flowing catalyst particles.

    Abstract translation: 本发明涉及一种将过渡金属茂金属络合物均匀分散在载体上的方法，包括（1）提供多孔的，具有1至250微米的粒径的二氧化硅，具有平均直径为50至500埃的孔， 孔体积为0.5-5.0cc / g;（2）将二氧化硅在沸点低于110℃的脂肪族溶剂中制浆;（3）提供体积的包含金属茂配合物的溶液，式 低聚线型铝氧烷的R-（Al（R）-O-）x-AlR2和环状铝氧烷的（-Al（R）-O-）y，其中x为1-40，y为3-40，R为 芳族和溶剂中的C 1 -C 8烷基，其中溶液的体积小于形成二氧化硅浆料所需的体积，其中铝氧烷的浓度以Al重量百分比表示为5至20;（4）接触 二氧化硅浆料（2）与所述溶液（3）的体积一起并使溶液浸渍二氧化硅的孔隙， 在载体上和载体上存在金属茂;（5）从接触和浸渍的二氧化硅中蒸发溶剂以回收干燥的自由流动的催化剂颗粒。

    Surface-treated multi-layered polymer film
    10.
    发明授权
    Surface-treated multi-layered polymer film 有权
    表面处理多层聚合物膜

    公开(公告)号：US08479478B2

    公开(公告)日：2013-07-09

    申请号：US12122322

    申请日：2008-05-16

    Applicant: Michael Dale Cleckner ,  Scott P. Wilkins

    Inventor： Michael Dale Cleckner ,  Scott P. Wilkins

    IPC: B65B11/00

    CPC classification number: B32B27/08 ,  B32B27/16 ,  B32B27/20 ,  B32B27/32 ,  B32B27/36 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2255/10 ,  B32B2264/102 ,  B32B2307/4023 ,  B32B2307/4026 ,  B32B2307/41 ,  B32B2307/52 ,  B32B2553/00 ,  Y10T428/2813 ,  Y10T428/2817

    Abstract: A sealable polymeric film structure comprising (a) a core layer including a thermoplastic polymer, the core layer having a machine side and a product side that is on a side of the film opposite from the machine side; and (b) a sealable skin layer positioned on the product side of the core layer, the sealable skin layer including a thermoplastic polymer, wherein an exterior surface of the sealable skin layer has a receding Cahn value of at least about 0.48; and wherein in some heat—sealable embodiments, the sealable skin layer sealed to itself has a MST of from about 175° F. to about 220° F., with a jaw pressure of 20 psi for 0.75 seconds and a minimum acceptable seal strength of 200 g/in at 175° F., on a Wrap-Ade™ Crimp Sealer Model J or K.

    Abstract translation: 一种可密封的聚合物膜结构，其包括（a）包含热塑性聚合物的芯层，所述芯层具有机器侧，所述产品侧在与所述机器侧相反的一侧上; 和（b）位于所述芯层的产品侧上的可密封表皮层，所述可密封表皮层包括热塑性聚合物，其中所述可密封表皮层的外表面具有至少约0.48的后退Cahn值; 并且其中在一些可热封的实施例中，密封到其自身的可密封表皮层的MST为约175°F至约220°F，钳口压力为20psi，持续0.75秒，最小可接受的密封强度为 在175°F下200g / in，Wrap-Ade TM压接封口机J或K.

Patent Agency Ranking