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32 条记录 (耗时 0.016 秒)

    Cationically crosslinkable polyorganosiloxanes and antiadhesive coatings produced therefrom
    1.
    发明授权
    Cationically crosslinkable polyorganosiloxanes and antiadhesive coatings produced therefrom 失效
    阳离子交联的聚有机硅氧烷和由其制备的防粘涂层

    公开(公告)号：US5340898A

    公开(公告)日：1994-08-23

    申请号：US35603

    申请日：1993-03-23

    申请人： Jacques Cavezzan ,  Christian Priou

    发明人： Jacques Cavezzan ,  Christian Priou

    IPC分类号： C08J3/28 ,  C07F5/02 ,  C08K5/55 ,  C08L83/04 ,  C09D183/04 ,  C09D183/06 ,  C08G77/06

    CPC分类号： C08K5/55 ,  C07F5/027 ,  C09D183/06 ,  Y10T428/31663

    摘要： Cationically crosslinkable polyorganosiloxane compositions, well suited for providing antiadhesive coatings on a wide variety of shaped substrates via the photochemical/electron beam crosslinking thereof, include a catalytically effective amount of an onium borate of an element of Groups 15 to 17 of the Periodic Table, the anionic borate moiety of which onium borate having the formula:[BX.sub.a R.sub.b ].sup.-in which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when a ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.

    摘要翻译： 非常适合通过其光化学/电子束交联在各种成形基材上提供抗粘附涂层的阳离子交联性聚有机硅氧烷组合物包括催化有效量的元素周期表第15-17族元素的硼酸镧， 其中硼和硼酸盐的阴离子硼酸盐部分具有下式：[BXaRb] - 其中a和b是0-4和a + b = 4的整数; 当范围高达3时，符号X各自为卤素原子，当范围达到2时，符号X为OH官能团; 并且可以相同或不同的符号R各自为被至少一个吸电子取代基或至少两个卤素原子取代的苯基，或含有至少两个芳族环成员的芳基或这样的芳基 带有至少一个吸电子取代基。

    Initiators for the cationic crosslinking of polymers containing organofunctional groups
    7.
    发明授权
    Initiators for the cationic crosslinking of polymers containing organofunctional groups 失效
    用于阳离子交联含有有机官能团的聚合物的引发剂

    公开(公告)号：US5703137A

    公开(公告)日：1997-12-30

    申请号：US616170

    申请日：1996-03-14

    申请人： Christian Priou ,  Stuart Kerr, III

    发明人： Christian Priou ,  Stuart Kerr, III

    IPC分类号： C08F2/50 ,  C08G59/32 ,  C08G59/68 ,  C08K5/00 ,  C09D183/06 ,  D21H27/00 ,  G03F7/004 ,  C08L83/06

    CPC分类号： G03F7/0045 ,  C08G59/3254 ,  C08G59/68 ,  C08K5/0025 ,  C09D183/06 ,  D21H27/001

    摘要： The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups. The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from .alpha.-hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.

    摘要翻译： 本发明涉及用于聚合和/或交联的阳离子和光活化和/或热活化和/或通过电子束，含有有机官能团的单体和/或聚合物进行激活的引发剂。 所述引发剂的类型包括元素周期表第15-17族元素的鎓盐（Chem＆Eng News，Vol 63，N5,26，1985年2月4日），它们的特征在于它们含有 选自α-羟基化羧酸酯的至少一种聚合和/或交联促进剂，例如乳酸酯。 本发明的另一主题是基于至少一种阳离子交联聚有机硅氧烷和至少一种引发剂的组合物。

    Molecular weight reduction of polysaccharides by electron beams
    8.
    发明授权
    Molecular weight reduction of polysaccharides by electron beams 有权
    通过电子束分子量减少多糖

    公开(公告)号：US07259192B2

    公开(公告)日：2007-08-21

    申请号：US10606256

    申请日：2003-06-24

    申请人： Leo Zhaoqing Liu ,  Christian Priou

    发明人： Leo Zhaoqing Liu ,  Christian Priou

    IPC分类号： C08F2/46 ,  C09K3/32

    CPC分类号： C08B37/0087 ,  C08B37/00 ,  C08B37/0033 ,  C08B37/0096 ,  C09K8/68 ,  C09K8/90

    摘要： A method of depolymerizing galactomannan-type polysaccharide polymers and xanthan, preferably galactomannans, to a pre-selected lower molecular weight by irradiation with high energy electron beams. The preferred galactomannans for treatment according to this method are guar gum, guar splits and hydroxypropyl guar. In a preferred embodiment the guar gum is depolymerized preferably to a molecular weight of about 150,000 Daltons to about 200,000 Daltons. The depolymerized guar has a polydispersity of less than about 3.0 and is useful in oil well fracturing to enhance oil production.

    摘要翻译： 通过用高能电子束照射，将半乳甘露聚糖型多糖聚合物和黄原胶，优选半乳甘露聚糖解聚为预选的较低分子量的方法。 根据该方法治疗的优选的半乳甘露聚糖是瓜尔胶，瓜尔胶和羟丙基瓜尔胶。 在优选的实施方案中，瓜耳胶优选解聚至约150,000道尔顿至约200,000道尔顿的分子量。 解聚瓜尔胶具有小于约3.0的多分散性，并且可用于油井压裂以增强油的生产。

    Process for the preparation of tetrakis (pentafluorophenyl) borate derivatives
    9.
    发明授权
    Process for the preparation of tetrakis (pentafluorophenyl) borate derivatives 有权
    四（五氟苯基）硼酸盐衍生物的制备方法

    公开(公告)号：US06700019B2

    公开(公告)日：2004-03-02

    申请号：US10310503

    申请日：2002-12-05

    申请人： Michel Dury ,  Christian Priou ,  Jacques Richard

    发明人： Michel Dury ,  Christian Priou ,  Jacques Richard

    IPC分类号： C07F502

    CPC分类号： C07F5/027

    摘要： The invention concerns a novel method for preparing tetrakis(pentafluorophenyl)borate derivatives of general formula MB(C6F5)4, M being selected among Na+, Li+, or K+, wherein: (a) a C6F5X solution, X being selected among H, Cl, Br or I, in anhydrous butylic ether is contacted with an alkyllithium, the mol ratio of C6F5X/alkyllithium being 1 to 1.1, and the alkyl radical, linear or branched comprising 1 to 10 carbon atoms; (b) the resulting product is contacted with previously non-dissolved BR3, R, identical or different being selected among a chlorine atom, a fluorine atom, a bromine atom, an alkoxy radical comprising between 1 and 4 carbon atoms.

    摘要翻译： 本发明涉及制备通式MB（C6F5）4的四（五氟苯基）硼酸盐衍生物的新方法，M选自Na +，Li +或K +，其中：（a）C 6 F 5 X 溶液中，选自H，Cl，Br或I的无水丁基醚中的X与烷基锂接触，C 6 F 5 X /烷基锂的摩尔比为1〜1.1，直链或支链的碳原子数为1〜10的烷基 ; （b）将所得产物与之前未溶解的BR 3，R 3相同或不同，选自氯原子，氟原子，溴原子，含有1至4个碳原子的烷氧基。