Process for preparing aqueous dispersion
    1.
    发明授权
    Process for preparing aqueous dispersion 失效
    水分散体的制备方法

    公开(公告)号:US07732545B2

    公开(公告)日:2010-06-08

    申请号:US10541330

    申请日:2004-01-21

    摘要: An aqueous dispersion is prepared by subjecting (meth)acrylate containing a polyfluoroalkyl group and a polymerizable monomer containing no fluorine atom to an emulsification treatment in the presence of a surfactant and a polypropyleneglycol-based compound having a molecular weight of 250 to 5,000, followed by copolymerization reaction in the presence of a polymerization initiator. The resulting aqueous dispersion, even if prepared from (meth)acrylate copolymer containing mixed perfluoroalkyl groups including perfluoroalkyl groups having 12 or more carbon atoms as polyfluoroalkyl groups, has a distinguished emulsion stability and thus can be effectively used as a water and oil repellent, etc.

    摘要翻译: 在表面活性剂和分子量为250〜5000的聚丙二醇类化合物的存在下,通过使含有多氟烷基的(甲基)丙烯酸酯和不含氟原子的聚合性单体进行乳化处理来制备水分散体, 在聚合引发剂存在下进行共聚反应。 得到的水性分散体即使由包含具有12个以上碳原子的全氟烷基的混合全氟烷基作为多氟烷基的(甲基)丙烯酸酯共聚物制备,具有显着的乳液稳定性,因此可以有效地用作拒水拒油剂等 。

    Process for preparing aqueous dispersion
    4.
    发明申请
    Process for preparing aqueous dispersion 审中-公开
    水分散体的制备方法

    公开(公告)号:US20090286931A1

    公开(公告)日:2009-11-19

    申请号:US12460784

    申请日:2009-07-24

    IPC分类号: C08K5/1515 C08K5/053 C08K5/06

    摘要: An aqueous dispersion is prepared by subjecting (meth)acrylate containing a polyfluoroalkyl group and a polymerizable monomer containing no fluorine atom to an emulsification treatment in the presence of a surfactant and a polypropyleneglycol-based compound having a molecular weight of 250 to 5,000, followed by copolymerization reaction in the presence of a polymerization initiator. The resulting aqueous dispersion, even if prepared from (meth)acrylate copolymer containing mixed perfluoroalkyl groups including perfluoroalkyl groups having 12 or more carbon atoms as polyfluoroalkyl groups, has a distinguished emulsion stability and thus can be effectively used as a water and oil repellent, etc.

    摘要翻译: 在表面活性剂和分子量为250〜5000的聚丙二醇类化合物的存在下,通过使含有多氟烷基的(甲基)丙烯酸酯和不含氟原子的聚合性单体进行乳化处理来制备水分散体, 在聚合引发剂存在下进行共聚反应。 得到的水性分散体即使由包含具有12个以上碳原子的全氟烷基的混合全氟烷基作为多氟烷基的(甲基)丙烯酸酯共聚物制备,具有显着的乳液稳定性,因此可以有效地用作拒水拒油剂等 。

    .alpha.,.alpha.-bis(trifluoromethyl)arylacetic acid ester; its
intermediates for synthesis; and process for producing the same
    7.
    发明授权
    .alpha.,.alpha.-bis(trifluoromethyl)arylacetic acid ester; its intermediates for synthesis; and process for producing the same 失效
    α,α-双(三氟甲基)芳基乙酸酯; 其中间体用于合成; 及其制造方法

    公开(公告)号:US5808132A

    公开(公告)日:1998-09-15

    申请号:US614224

    申请日:1996-03-12

    CPC分类号: C07D303/48 C07C67/00

    摘要: Heptafluoroisobutenyl methyl ether having the following formula: ##STR1## is oxidized with ozone to produce perfluoro(2-methyl-1,2-epoxy-propyl) methyl ether. The resulting intermediate compound is allowed to react with an aromatic compound ArH to produce .alpha.,.alpha.-bis(trifluoromethyl)arylacetic acid methyl ester having the following formula: ##STR2## By hydrolysis, decarboxylation and further hydrolysis of the ester compound, .alpha.,.alpha.-bis(trifluoromethyl)arylacetic acid for use as raw materials for medicines, agricultural chemicals, liquid crystals, etc. or reagents for determining an optical purity can be obtained.

    摘要翻译: 具有下式的七氟异丁烯基甲基醚:用臭氧氧化产生全氟(2-甲基-1,2-环氧丙基)甲基醚。 使得到的中间体化合物与芳族化合物ArH反应以产生具有下式的α,α-双(三氟甲基)芳基乙酸甲酯:通过水解,脱羧和进一步水解酯化合物,α,α 可以获得用作药物,农药,液晶等的原料的双(三氟甲基)芳基乙酸或用于测定光学纯度的试剂。

    Process for Producing Water- and Oil-Repellent Agent
    8.
    发明申请
    Process for Producing Water- and Oil-Repellent Agent 失效
    防水防油剂的生产工艺

    公开(公告)号:US20080071025A1

    公开(公告)日:2008-03-20

    申请号:US11628587

    申请日:2005-05-27

    IPC分类号: C08L53/00

    摘要: A water- and oil-repellent agent is produced by subjecting (a) a polyfluoroalkyl group-containing (meth)acrylate and (b) a fluorine atom-free polymerizable monomer to an emulsification treatment in the presence of (c) a polyethylene oxide adduct type, cationic surfactant, or both of the cationic surfactant and a polyethylene oxide adduct type, non-ionic surfactant, and (d) a glycol-based compound, followed by copolymerization reaction in the presence of a polymerization initiator, and admixing the resulting aqueous dispersion with (e) a blocked isocyanate, and gives a satisfactory water and oil repellency to not only synthetic fibers, but also natural fibers, and also has a distinguished washing durability.

    摘要翻译: 通过在(c)聚环氧乙烷加成物存在下使(a)含有多氟烷基的(甲基)丙烯酸酯和(b)无氟原子的可聚合单体进行乳化处理来制备拒水拒油剂 型阳离子表面活性剂,或阳离子表面活性剂,聚环氧乙烷加合物类型,非离子表面活性剂和(d)二醇类化合物两者,然后在聚合引发剂存在下进行共聚反应,并将得到的水溶液 (e)嵌段异氰酸酯的分散体,并且不仅对合成纤维而且天然纤维具有令人满意的拒水拒油性,还具有显着的洗涤耐久性。

    Method of producing acrylic copolymer
    9.
    发明申请
    Method of producing acrylic copolymer 审中-公开
    制备丙烯酸共聚物的方法

    公开(公告)号:US20070106043A1

    公开(公告)日:2007-05-10

    申请号:US10587640

    申请日:2005-03-22

    IPC分类号: C08F220/22

    摘要: In the production of an acrylic copolymer by emulsion polymerization of a monomer mixture comprising (a) 30-70% by weight of perfluoroalkylalkyl (meth)acrylate, represented by the following general formula: CH2═CRCOOR′ Rf (where R is a hydrogen atom or a methyl group, R′ is a linear or branched alkylene group having 1-8 carbon atoms, and Rf is a perfluoroalkyl group having 4-16 carbon atoms), (b) 25-60% by weight of stearyl (meth)acrylate, (c) 0.1-5% by weight of (meth)acrylamide, and (d) 0.1-5% by weight of N-methylol (meth)acrylamide, in the presence of a non-ionic and/or cationic surfactant, a polypropylene glycol-based compound having a molecular weight of 250-5,000 is used as an emulsification aid at the same time. The resulting aqueous dispersion of acrylic copolymer has distinguished preservation stability, and water and oil repellency.

    摘要翻译: 在通过乳液聚合制备丙烯酸共聚物时,所述单体混合物包含(a)30-70重量%的(甲基)丙烯酸全氟烷基烷基酯,由以下通式表示:CH 2 CO- Rf(其中R是氢原子或甲基,R'是具有1-8个碳原子的直链或支链亚烷基,Rf是具有4-16个碳原子的全氟烷基),(b)25-60% (甲基)丙烯酸硬脂酯,(c)0.1-5重量%的(甲基)丙烯酰胺,和(d)0.1-5重量%的N-羟甲基(甲基)丙烯酰胺, 离子和/或阳离子表面活性剂,分子量为250-5,000的聚丙二醇基化合物同时用作乳化助剂。 所得到的丙烯酸共聚物的水分散体具有显着的保存稳定性和拒水拒油性。