中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.026 seconds)

    DETERGENTS FOR COLD-WATER CLEANING
    11.
    发明申请
    DETERGENTS FOR COLD-WATER CLEANING 有权
    冷水清洗剂

    公开(公告)号：US20170066998A1

    公开(公告)日：2017-03-09

    申请号：US15353968

    申请日：2016-11-17

    Applicant: Stepan Company

    Inventor： Brian Holland ,  Randal J. Bernhardt ,  Branko Sajic ,  Rick Tabor

    IPC: C11D11/00 ,  C11D1/22 ,  C11D1/29 ,  C11D1/34 ,  C11D1/90 ,  C11D1/75 ,  C11D1/83 ,  C11D1/92 ,  C11D3/30 ,  C11D3/386 ,  C11D1/14 ,  C11D1/72

    Abstract: Detergents useful for cold-water cleaning and mid-chain headgroup and alkylene-bridged surfactants useful therein are disclosed. The mid-chain headgroup surfactant has a C14-C30 alkyl chain and a polar group bonded to a central zone carbon of the alkyl chain. The alkylene-bridged surfactant has a C12-C18 alkyl chain, a polar group, and a C1-C2 alkylene group bonded to the polar group and a central zone carbon of the C12-C18 alkyl chain. Preferred surfactants in these classes are alcohol sulfates, alcohol ethoxylates, ether sulfates, sulfonates, arylsulfonates, alcohol phosphates, amine oxides, quaterniums, betaines, and sulfobetaines. Surprisingly, detergents formulated with the surfactants provide outstanding cold-water performance in removing greasy stains such as bacon grease, butter, cooked beef fat, or beef tallow from soiled articles.

    Abstract translation: 公开了可用于冷水清洗的洗涤剂和可用于其中的中链头团和亚烷基桥连表面活性剂。 中链头团表面活性剂具有C 14 -C 30烷基链和与烷基链的中心区碳键合的极性基团。 亚烷基桥连表面活性剂具有C12-C18烷基链，极性基团和与极性基团键合的C1-C2亚烷基和C12-C18烷基链的中心区碳。 这些类别中优选的表面活性剂是醇硫酸盐，醇乙氧基化物，醚硫酸盐，磺酸盐，芳基磺酸盐，醇磷酸盐，氧化胺，季铵盐，甜菜碱和磺基甜菜碱。 令人惊讶的是，用表面活性剂配制的洗涤剂提供出色的冷水性能，可以从污染物品中除去油污，如培根油脂，黄油，熟牛肉或牛脂。

    Steam foam methods for steam-assisted gravity drainage
    12.
    发明授权
    Steam foam methods for steam-assisted gravity drainage 有权

    公开(公告)号：US10590749B2

    公开(公告)日：2020-03-17

    申请号：US15503293

    申请日：2015-07-31

    Applicant: Stepan Company

    Inventor： Aaron Sanders ,  Gregory P. Dado ,  Brian Holland ,  Xue Min Dong ,  E. Carolina Rojas

    IPC: E21B43/24 ,  E21B43/30 ,  C09K8/584

    Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.

    COLD-WATER LAUNDRY DETERGENTS
    13.
    发明申请
    COLD-WATER LAUNDRY DETERGENTS 审中-公开

    公开(公告)号：US20170369816A1

    公开(公告)日：2017-12-28

    申请号：US15541500

    申请日：2015-12-29

    Applicant: STEPAN COMPANY

    Inventor： Brian Holland ,  Randal Bernhardt ,  Branko Sajic

    IPC: C11D1/37 ,  C11D3/386 ,  C11D1/14 ,  C11D1/29

    Abstract: Laundry detergents and their use for cold-water cleaning are disclosed. The detergents comprise a lipase and a mid-chain headgroup surfactant or an alkylene-bridged surfactant. The mid-chain headgroup surfactants have a C14-C30 alkyl chain and a polar group bonded to a central zone carbon of the C14-C30 alkyl chain. The alkylene-bridged surfactants comprise a C12-C18 alkyl chain, a polar group, and a C1-C2 alkylene group bonded to the polar group and a central zone carbon of the C12-C18 alkyl chain. Surprisingly, when combined with lipases, detergents formulated with the mid-chain headgroup or alkylene-bridged surfactants effectively liquefy greasy soils at low temperature and provide outstanding cold-water performance in removing greasy stains such as bacon grease, butter, cooked beef fat, or beef tallow from soiled articles.

    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE
    14.
    发明申请
    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE 审中-公开

    公开(公告)号：US20170226836A1

    公开(公告)日：2017-08-10

    申请号：US15503293

    申请日：2015-07-31

    Applicant: Stepan Company

    Inventor： Aaron Sanders ,  Gregory P. Dado ,  Brian Holland ,  Xue Min Dong ,  Carolina E. Rojas

    IPC: E21B43/24 ,  C09K8/584 ,  E21B43/30

    CPC classification number: E21B43/2408 ,  C09K8/584 ,  E21B43/305

    Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.

Patent Agency Ranking