Catalizador para el curado de epóxidos

    公开(公告)号:ES2390139T3

    公开(公告)日:2012-11-07

    申请号:ES08760687

    申请日:2008-06-06

    Applicant: BASF SE

    Abstract: Empleo de sales de imidazolio sustituidas en 1, 3 de la fórmula IdondeR1 y R3 representan independientemente uno de otro un radical metilo, etilo, n-propilo, isopropilo, n-butilo, sec.-butilo o tert.-butiloR4, y R5 representan independientemente uno de otro un átomo de H o un radical orgánico con 1 a 20 átomos de C,donde R4 y R5 también pueden formar juntos un anillo alifático o aromático,R2 representa un átomo de H,X representa un anión con un valor pKB inferior a 13 (medido a 25°C, 1 bar en agua o dimetilsulfóxido)y es elegido de entre cianato y compuestos con 1 a 20 átomos de C, el cual contiene un grupo carboxilato y apartede los átomos de oxígeno del grupo carboxilato no contiene otros heteroátomos yn representa 1,donde se excluyen acetato de 1-etil-2,3-dimetilimidazolio y complejo de ácido acético-acetato de 1-etil-2,3-dimetilimidazolio en la forma de sales de imidazolio, como catalizadores latentes para el curado de mezclas quecontienen compuestos epóxido.

    43.
    发明专利
    未知

    公开(公告)号:AT506334T

    公开(公告)日:2011-05-15

    申请号:AT05706843

    申请日:2005-01-07

    Applicant: BASF SE

    Inventor: MAASE MATTHIAS

    Abstract: The invention relates to a process for the distillation of ionic liquids, in which a pressure not higher than ambient pressure is set in a first step and the ionic liquid is heated to a temperature in the range from 60° C. to 350° C. in a second step. The process is employed, in particular, for the purification of ionic liquids.

    45.
    发明专利
    未知

    公开(公告)号:AT435854T

    公开(公告)日:2009-07-15

    申请号:AT05715706

    申请日:2005-03-03

    Applicant: BASF SE

    Abstract: Process for preparing ionic compounds comprising cations containing quaternary sp2-hybridized nitrogen atoms, which comprises reacting compounds containing a double-bonded nitrogen atom with a dialkyl sulfate with participation of both alkyl groups of the dialkyl sulfate and, if appropriate, subjecting the resulting ionic compound containing sulfate anions to an anion exchange.

    47.
    发明专利
    未知

    公开(公告)号:DE502004007160D1

    公开(公告)日:2008-06-26

    申请号:DE502004007160

    申请日:2004-07-03

    Applicant: BASF SE

    Abstract: The invention relates to a process for the extractive removal of phenols, alcohols, amines, phoshines, hydroxylamines, hydrazines, oximes, imines, water, carboxylic acids, amino acids, hydroxamic acids, sulfinic acids, sulfonic acids, peroxycarboxylic acids, phosphonous acids, phosphinous acids, phosphonic acids, phosphinic acids or phosphoric acids from aprotic solvents by means of ionic liquids of the formula [K]n+[A]n-, where n, [K]+ and An- are defined as in the description.

    SOLVENT SYSTEM BASED ON MOLTEN IONIC LIQUIDS, ITS PRODUCTION AND USE FOR PRODUCING REGENERATED CARBOHYDRATES

    公开(公告)号:ZA200806307B

    公开(公告)日:2013-12-23

    申请号:ZA200806307

    申请日:2008-07-21

    Applicant: BASF SE

    Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating. The invention offers in particular economic advantages over the systems of the prior art.

    50.
    发明专利
    未知

    公开(公告)号:AT552290T

    公开(公告)日:2012-04-15

    申请号:AT08803596

    申请日:2008-09-03

    Applicant: BASF SE

    Abstract: The present invention is related to the use of specific cyclic and/or polymeric aryl-phosphines as flame retardants and to a method for reducing the flammability of organic material by incorporating into the material these specific cyclic and/or polymeric phosphines. Moreover, the invention is related to a polymeric composition containing a polymeric material and at least one of the specific cyclic and/or polymeric phosphines in an amount of from 1 to 15% by weight, based on the weight of the polymeric material. The invention also relates to a composition comprising at least one of the specific cyclic and/or polymeric phosphines and at least one polymerizable monomer.

Patent Agency Ranking