中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1910 records (took 0.027 seconds)

    NUTRIENT INJECTION METHOD FOR SUBTERRANEAN MICROBIAL PROCESSES
    62.
    发明专利
    NUTRIENT INJECTION METHOD FOR SUBTERRANEAN MICROBIAL PROCESSES 未知

    公开(公告)号：AU636518B2

    公开(公告)日：1993-04-29

    申请号：AU8882091

    申请日：1991-12-05

    Applicant: PHILLIPS PETROLEUM COMPANY

    Inventor： JAMES BENNETT CLARK ,  GARY EDWARD JENNEMAN

    IPC: C09K8/90

    Abstract: The present invention provides a method of injecting nutrients into a subterranean formation in order to achieve a desired in-situ microbial objective. Sources of individual nutrient components which are deficient in the formation are sequentially injected so that a complete nutrient medium capable of sustaining substantial microbial activity is formed in the formation upon injection of the last of said sources. Said sources are preferably injected into the formation in order of decreasing quantitative formation retainability.

    64.
    发明专利
    未知

    公开(公告)号：ES2026873T3

    公开(公告)日：1992-05-16

    申请号：ES87111764

    申请日：1987-08-13

    Applicant: PHILLIPS PETROLEUM COMPANY

    Inventor： FU, CHIA-MIN

    IPC: C10G11/00 ,  B01J29/08 ,  B01J29/18 ,  C10G11/05

    Abstract: Hydrocarbon-containing feed streams (preferably heavy gas oils and hydrotreated residua) having an initial boiling point of at least 400 DEG F are catalytically cracked in the presence of a cracking catalyst comprising a faujasite-type zeolite having a unit cell size of about 24.28-24.48 A and an alkali metal content of less than about 0.5 weight percent and being substantially free of iron ions. Preferably, the faujasite-type zeolite has an atomic Si:Al ratio in the crystalline framework of about 8:1 to 21:1 and has been partially dealuminated by a process comprising steam treatment followed by acid leaching.

    CRAZE-RESISTANT TRANSPARENT RESINOUS COPOLYMERS
    66.
    发明专利
    CRAZE-RESISTANT TRANSPARENT RESINOUS COPOLYMERS 未知

    公开(公告)号：CA1254317A

    公开(公告)日：1989-05-16

    申请号：CA561683

    申请日：1988-03-16

    Applicant: PHILLIPS PETROLEUM COMPANY

    Inventor： KITCHEN, ALONZO G.

    IPC: C08F297/04

    Abstract: of the Invention Resinous polymodal block copolymers of such as butadiene and styrene which are craze-resistant, transparent, and substantially color-free, and methods of producing the block copolymers. The copolymers are prepared by sequential charge copolymerization modes comprising the solution polymerization of at least two charges each of a conjugated diene, a monovinylarene, and a monoalkali metal initiator, at least one charge of conjugated diene monomer precedes the last charge of monoalkali metal initiator, at least one charge each of monovinylarene and of conjugated diene follows the last charge of monoalkali metal initiator, and the final charge of monomer is a charge of conjugated diene monomer, such that the number of charges of each of said components is not more than three, and the total of the charges of the three components is 8 or 9.

    REMOVAL OF HYDROGEN SULFIDE
    68.
    发明专利
    REMOVAL OF HYDROGEN SULFIDE 未知

    公开(公告)号：ZA873789B

    公开(公告)日：1987-11-24

    申请号：ZA873789

    申请日：1987-05-26

    Applicant: PHILLIPS PETROLEUM COMPANY

    Inventor： DENNIS RAYMOND KIDD

    IPC: B01D53/52 ,  B01J20/08 ,  C07C

    Abstract: Hydrogen sulfide is removed from a fluid stream containing hydrogen sulfide by contacting the fluid stream under suitable absorbing conditions with an absorbing composition comprising zinc titanate and alumina promoted with at least one metal selected from tungsten and molybdenum and at least one metal selected from Group VIII of the Periodic Table.

    PROCESS FOR PREPARING BLOCK COPOLYMER
    69.
    发明专利
    PROCESS FOR PREPARING BLOCK COPOLYMER 未知

    公开(公告)号：ZA871595B

    公开(公告)日：1987-08-26

    申请号：ZA871595

    申请日：1987-03-05

    Applicant: PHILLIPS PETROLEUM COMPANY

    Inventor： ALONZO GENE KITCHEN ,  FRANK JOHN SZALLA

    IPC: C08F4/08 ,  C08F4/42 ,  C08F4/48 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02 ,  C08F

    Abstract: Sequential charging of initiator and monomers in a multistage solution polymerization process involving conjugated diene and monovinylaromatic monomers wherein the final charge is a mixture of these monomers results in the production of resinous polymodal linear block copolymers each with a terminal tapered block. A typical 5-stage charge sequence is as follows: Stage 1: (Si); Stage 2: (Si); Stage 3: (B); Stage 4: (Si); Stage 5: (S+B) wherein (Si) is monovinylaromatic monomer and initiator; (B) is conjugated diene monomer and (S+B) is monovinylaromatic monomer and conjugated diene monomer. At each stage, polymerization is allowed to continue until no free monomer is present. The trimodal block copolymer products comprise high, medium and low molecular weight species designated, respectively, as S1-S2-B1-S3-B2->S4; S2-B1-S3-B2->S4; and S3-B2->S4 wherein S1, S2 and S3 represent, respectively, polyvinylaromatic blocks resulting from polymerization of the first, second and third charges of monovinylaromatic monomer (stages 1,2 and 4); B1 represents a polydiene block resulting from polymerization of the first charge of conjugated diene monomer (stage 3); and B2->S4 represents a terminal tapered copolymer block resulting from polymerization of the conjugated diene and monovinylaromatic monomers (stage 5). The subject copolymers can be fabricated into sheets and molded objects possessing little color, a high degree of transparency and excellent impact resistance. These fabricated products do not craze on being impacted.

Patent Agency Ranking