Method for producing 2-cyanoacetic acid anhydride and further reaction products thereof
    3.
    发明公开
    Method for producing 2-cyanoacetic acid anhydride and further reaction products thereof 有权
    一种用于2-氰酸酸酐及其进一步的反应产物的制备过程

    公开(公告)号:EP2420486A1

    公开(公告)日:2012-02-22

    申请号:EP10170562.2

    申请日:2010-07-23

    发明人: Hynes, Stephan

    IPC分类号: C07C253/30 C07C255/23

    CPC分类号: C07C253/30 C07C255/23

    摘要: The present invention relates to a process for producing 2-cyanoacetic acid anhydride, comprising the steps of a) preparing a reaction mixture, containing as reactants 2-cyanoacetic acid, and at least one C 4-20 carboxylic acid anhydride in at least one organic solvent, wherein the molar ratio of 2-cyanoacetic acid to C 4-20 carboxylic acid anhydride in said reaction mixture is greater than 1.5:1, and b) subjecting the reaction mixture to a temperature of 0°C to 100°C to form 2-cyanoacetic acid anhydride. The present invention also relates to process for producing 2-cyanoacetic acid esters, 2-cyanoacetic acid amides and/or 2-cyanoacetic acid thioesters from 2-cyanoacetic acid anhydride.

    摘要翻译: 本发明涉及一种用于制备2-氰基乙酸酐,所述方法包括以下步骤:a)制备反应混合物,将含有作为反应物2-氰基乙酸,和至少一种C 4-20的至少一种有机羧酸酐 毕业,worin至C 4-20羧酸酐在所述反应混合物的2-氰基乙酸的摩尔比大于1.5:1,和b)反应混合物经受的0℃的温度至100℃,以形成 2-氰基乙酸酐。 因此,本发明涉及一种用于从2-氰基乙酸酐制备2-氰基乙酸酯,2-氰基乙酰胺和/或2-氰基乙酸硫酯处理。

    DISPENSING NOZZLE AND CAP
    5.
    发明公开
    DISPENSING NOZZLE AND CAP 有权
    调剂和CAP

    公开(公告)号:EP1725468A1

    公开(公告)日:2006-11-29

    申请号:EP05709092.0

    申请日:2005-02-09

    IPC分类号: B65D41/17 B65D47/12

    摘要: A dispensing nozzle (1) having: (i) an elongate nozzle body (2) having a base portion (3) and a dispensing end (5); (ii) an internal conduit (6) in the nozzle body (2) for delivering product from the base portion (3) to the dispensing end (5); (iii) engaging formations on the nozzle for inter-engaging with co-operating engaging formations (8a, 8b) on a cap (100), to hold said cap (100) in a position over-fitting the nozzle (1); and (iv) an external ramp (9a, 9b) on the nozzle body (2) and against which a co-operating portion (110) on the cap (100) may act, to provide sufficient relative separation force between the cap (100) and the nozzle body (2), to separate the engaging formations (8a, 8b) on the cap and the nozzle (1) from an inter­engaged position. The cap (1) and nozzle (100) when inter-engaged are easily separated by substantially less than one 360° turn and provide a strong separating force which can overcome fouling or bonding caused by curing of dispensed product.

    METHOD OF BONDING ALUMINIUM SUBSTRATES WITH ANAEROBIC SEALANTS TO FORM A SEAL
    7.
    发明授权
    METHOD OF BONDING ALUMINIUM SUBSTRATES WITH ANAEROBIC SEALANTS TO FORM A SEAL 有权
    打自铝方法的基板厌氧密封建立了SEAL

    公开(公告)号:EP1131363B1

    公开(公告)日:2003-05-28

    申请号:EP99940116.9

    申请日:1999-07-30

    摘要: A method of providing a seal, for example in the form of a gasket, between an aluminium substrate and a second substrate, said seal being exposed to fluids at elevated temperatures, particularly in an automotive engine. The method includes the steps of: (a) applying to at least one of the substrates an anaerobic sealant composition comprising: (i) one or more polymerizable (meth)acrylate ester monomers, (ii) an anaerobic cure-inducing component, and (iii) an adhesion promotor comprising one or more phosphorus-containing compounds having general formula (I) wherein R is H, CH3 or C2H5; R is -CH2-, -C2H4-, -C3H6-, or -CH2-CH(CH3)-; R is H, CH3 or C2H5; n is an integer from 1 to 10, and m is an integer from 1 to 3, (b) bringing the substrates into face-to-face contact, and (c) allowing or enabling the composition to cure at substantially ambient temperature. An exemplary adhesion promotor comprises a combination of bis(2-hydroxyethyl methacrylate) acid phosphate and 2-hydroxyethyl methacrylate acid phosphate, optionally with the addition of tris(2-hydroxyethyl methacrylate) acid phosphate.

    A NOZZLE ASSEMBLY WITH A REUSABLE BREAK-OFF CAP AND CONTAINER HAVING SUCH NOZZLE ASSEMBLY
    8.
    发明公开
    A NOZZLE ASSEMBLY WITH A REUSABLE BREAK-OFF CAP AND CONTAINER HAVING SUCH NOZZLE ASSEMBLY 有权
    分配容器包括具有重明显撕裂和包装一个分配喷嘴。

    公开(公告)号:EP1286892A2

    公开(公告)日:2003-03-05

    申请号:EP01940944.0

    申请日:2001-06-07

    IPC分类号: B65D1/02 B65D1/09

    摘要: The invention is a nozzle assembly (3, 20) with a re-useable break off cap (20) for dispensing a product from a container (1). On a dispensing end (5) of the nozzle (3) a break-off cap is integrally formed thereon and closes off the dispensing end (5) of the nozzle (3). The break-off cap (20) is removable by breaking a frangible connection (22) between the nozzle (3) and the break-off cap (20). Removing the break-off cap opens the dispensing end (5) of the nozzle (3) thereby allowing product to be dispensed through the nozzle (3). The break-off cap (20) removed from the nozzle (3) can then be re-engaged with the nozzle (3) to close off the dispensing end (5) thereby preventing further product from being dispensed. The cap can be attached to or removed from the nozzle (3) as often as a user requires. The invention also includes packaging which includes a tray (111) or pouch into which the nozzle assembly (3, 20) and container (1) can be inserted. A flexible resealable peel-off cover (110) is provided on each tray (111) to allow a user to resealably open and close the tray (111). The resealable tray (111) can be provided either singly or as a series of trays.

    ACTIVATOR COMPOSITIONS FOR CYANOACRYLATE ADHESIVES
    9.
    发明公开
    ACTIVATOR COMPOSITIONS FOR CYANOACRYLATE ADHESIVES 有权
    活化剂氰基丙烯酸酯

    公开(公告)号:EP1280866A1

    公开(公告)日:2003-02-05

    申请号:EP01928173.2

    申请日:2001-05-11

    IPC分类号: C09J4/00 C09J5/02

    CPC分类号: C09J5/04 C09J4/00 C08F222/32

    摘要: An activator composition for the accelerated hardening of cyanoacrylate adhesives, wherein the activator comprises a member selected from the group consisting of: aromatic heterocyclic compounds having at least one N hetero atom in the ring(s) such as pyridines, quinolines and pyrimidines and substituted on the ring(s) with at least one electron - withdrawing group which decreases the base strength of the substituted compound compared to the corresponding unsubstituted compound, mixtures of any of the foregoing with each other, and/or with N,N-dimethyl-p-toluidine, and mixtures of any of the foregoing and/or N,N-dimethyl-p-toluidine with an organic compound containing the structural element, -N=C-S-S-, such as dibenzothiazyl disulfide. 6,6'dithiodinicotinic acid, 2,2'-dipyridyl disulfide, and bis(4-t-butyl-1-isopropyl-2-imidazolyl) disulfide. An activator composition may comprise a solution of one or more activators in a solvent mixture which comprises a volatile hydrocarbon and a cyclic ketone.