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    Preparation of antiplasticizers for thermoplastic polyesters
    1.
    发明授权
    Preparation of antiplasticizers for thermoplastic polyesters 有权
    制备热塑性聚酯的抗增塑剂

    公开(公告)号：US09056964B2

    公开(公告)日：2015-06-16

    申请号：US14175911

    申请日：2014-02-07

    Applicant: Stepan Company

    Inventor： Rick Tabor ,  Brian K. Mirous ,  Timothy L. Lambert ,  Michael E. O'Brien ,  Matthew I. Levinson ,  Daniel J. Dershowitz

    IPC: C07C67/29 ,  C08K5/12 ,  C08K5/134 ,  C07C67/03 ,  C07C69/82

    CPC classification number: C08K5/1345 ,  C07C67/03 ,  C07C67/29 ,  C07C69/82 ,  C08K5/12 ,  Y02P20/582

    Abstract: A process for making bis(aryloxyalkyl)terephthalates useful as antiplasticizers for thermoplastic polyesters is disclosed. Dimethyl terephthalate is reacted with an excess of an aryloxyalkanol in the presence of a condensation catalyst to produce an intermediate mixture comprising a bis(aryloxyalkyl)terephthalate, a mono(aryloxyalkyl)terephthalate, and unreacted aryloxyalkanol. This mixture continues to react at reduced pressure while unreacted aryloxyalkanol is removed and the mono-ester content is reduced to less than 1 mole % based on the combined amounts of mono- and bis-esters. Both steps are performed substantially in the absence of oxygen. Additional unreacted aryloxyalkanol is then removed to provide a purified bis(aryloxyalkyl)terephthalate having an overall purity of at least 98 mole % and a yellowness index less than 10. Careful control over catalysis, exposure to air, and other process conditions enables the preparation of high yields of bis(aryloxyalkyl)terephthalates that have low color and other valuable attributes. A method of producing bis(aryloxyalkyl)terephthalate articles having improved compressive strength is also disclosed.

    Abstract translation: 公开了一种制备用作热塑性聚酯的抗增塑剂的双（芳氧基烷基）对苯二甲酸酯的方法。 在缩合催化剂的存在下，对苯二甲酸二甲酯与过量的芳氧基烷醇反应，以产生包含双（芳氧基烷基）对苯二甲酸酯，单（芳氧基烷基）对苯二甲酸酯和未反应的芳氧基烷醇的中间体混合物。 该混合物在减压下继续反应，同时除去未反应的芳氧基烷醇，并且基于单酯和双酯的组合量，单酯含量降低至小于1摩尔％。 两个步骤基本上在不存在氧的情况下进行。 然后除去另外的未反应的芳氧基烷醇，以提供纯度为至少98摩尔％，黄度指数小于10的纯化双（芳氧基烷基）对苯二甲酸酯。小心控制催化，暴露于空气和其它工艺条件使得能够制备 具有低颜色和其他有价值属性的双（芳氧基烷基）对苯二甲酸酯的高收率。 还公开了一种制备具有改善的抗压强度的双（芳氧基烷基）对苯二甲酸酯制品的方法。

    Detergents for cold-water cleaning
    4.
    发明授权
    Detergents for cold-water cleaning 有权

    公开(公告)号：US11142729B2

    公开(公告)日：2021-10-12

    申请号：US16536863

    申请日：2019-08-09

    Applicant: Stepan Company

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

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

    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.

    Detergents for cold-water cleaning
    5.
    发明授权
    Detergents for cold-water cleaning 有权

    公开(公告)号：US10421930B2

    公开(公告)日：2019-09-24

    申请号：US15353968

    申请日：2016-11-17

    Applicant: Stepan Company

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

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

    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.

    DETERGENTS FOR COLD-WATER CLEANING
    6.
    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。

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