知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

519 records (took 0.026 seconds)

    High-activity double-metal-cyanide catalyst
    2.
    发明授权
    High-activity double-metal-cyanide catalyst 有权

    公开(公告)号：US11602740B2

    公开(公告)日：2023-03-14

    申请号：US17212577

    申请日：2021-03-25

    Applicant: ORIENTAL UNION CHEMICAL CORP.

    Inventor： Yu-Chuan Hsu ,  Hsi-Chin Tsai

    IPC: B01J31/22 ,  C07C41/03

    Abstract: A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.

    ALKOXYLATED SECONDARY ALCOHOL
    3.
    发明申请
    ALKOXYLATED SECONDARY ALCOHOL 有权

    公开(公告)号：US20230024429A1

    公开(公告)日：2023-01-26

    申请号：US17954874

    申请日：2022-09-28

    Applicant: Arkema France

    Inventor： Jean-Philippe Gillet ,  Thierry Beillon

    IPC: C07C43/13 ,  C07C41/03 ,  C08G65/26

    Abstract: The invention relates to a compound of following formula (I): a preparation process, uses thereof and compositions containing the same, wherein R1 and R2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R1 and R2 ranges from 2 to 7, and where R1 and R2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R1, R2 and the carbon atom to which R1 and R2 are attached has a degree of branching equal to 0, 1 or 2.

    Preparation and application method of bio-based long-chain alcohol-ether oxygenate diesel additives
    4.
    发明授权
    Preparation and application method of bio-based long-chain alcohol-ether oxygenate diesel additives 有权

    公开(公告)号：US11492319B2

    公开(公告)日：2022-11-08

    申请号：US17289248

    申请日：2020-09-29

    Applicant: SOUTHEAST UNIVERSITY

    Inventor： Shiliang Wu ,  Rui Xiao ,  Yuan Liu ,  Ziwei Wang

    IPC: C07C41/03 ,  C10L1/185 ,  C10B53/02 ,  C10B57/10

    Abstract: A biomass-based long-chain alcohol ether oxygenated additive and a preparation method and application thereof are disclosed. The additive used agricultural and forestry wastes as raw materials, and has a general chemical formula of R—(O—C1-3)n—R—OH. The preparation method includes the following steps: step 1, performing drying pretreatment on biomass raw materials, performing rapid pyrolysis under an inert atmosphere to obtain a pyrolysis product containing water, gases, water-phase bio-oil and oil-phase bio-oil, separating out the water-phase bio-oil and performing catalytic hydrogenation on the water-phase bio-oil to obtain polyols; step 2, performing catalytic dehydration on the polyols obtained in step 1 under a basic catalyst system to obtain epoxyalkane; and step 3, making the epoxyalkane obtained in step 2 and methanol undergo a reaction under a molecular sieve catalyst and removing the solid catalyst by separation to obtain the long-chain alcohol ether oxygenated additive.

    PREPARATION AND APPLICATION METHOD OF BIO-BASED LONG-CHAIN ALCOHOL-ETHER OXYGENATE DIESEL ADDITIVES
    6.
    发明申请
    PREPARATION AND APPLICATION METHOD OF BIO-BASED LONG-CHAIN ALCOHOL-ETHER OXYGENATE DIESEL ADDITIVES 有权

    公开(公告)号：US20220106244A1

    公开(公告)日：2022-04-07

    申请号：US17289248

    申请日：2020-09-29

    Applicant: SOUTHEAST UNIVERSITY

    Inventor： Shiliang WU ,  Rui XIAO ,  Yuan LIU ,  Ziwei WANG

    IPC: C07C41/03 ,  C10L1/185 ,  C10B57/10 ,  C10B53/02

    Abstract: A biomass-based long-chain alcohol ether oxygenated additive and a preparation method and application thereof are disclosed. The additive used agricultural and forestry wastes as raw materials, and has a general chemical formula of R—(O—C1-3)n—R—OH. The preparation method includes the following steps: step 1, performing drying pretreatment on biomass raw materials, performing rapid pyrolysis under an inert atmosphere to obtain a pyrolysis product containing water, gases, water-phase bio-oil and oil-phase bio-oil, separating out the water-phase bio-oil and performing catalytic hydrogenation on the water-phase bio-oil to obtain polyols; step 2, performing catalytic dehydration on the polyols obtained in step 1 under a basic catalyst system to obtain epoxyalkane; and step 3, making the epoxyalkane obtained in step 2 and methanol undergo a reaction under a molecular sieve catalyst and removing the solid catalyst by separation to obtain the long-chain alcohol ether oxygenated additive.

    Aromatic dicarbinols
    7.
    发明授权
    Aromatic dicarbinols 有权

    公开(公告)号：US10815179B1

    公开(公告)日：2020-10-27

    申请号：US16559887

    申请日：2019-09-04

    Applicant: Eastman Chemical Company

    Inventor： Matthew Allen Boone

    IPC: C07C43/00 ,  C07C41/03 ,  C07C43/178

    Abstract: Disclosed are aromatic dicarbinol compounds that may have utility in a variety of chemical applications such as plasticizers, diluents, wetting agents and paint additives and as intermediates in chemical processes. The aromatic dicarbinols have particular utility as reactants in processes for the synthesis of aromatic enol ether compounds.

Patent Agency Ranking