CELLULOSE SOLUTIONS IN IONIC LIQUIDS

    公开(公告)号:CA2604557C

    公开(公告)日:2016-06-21

    申请号:CA2604557

    申请日:2006-04-07

    Applicant: BASF AG

    Abstract: The invention relates to a solution containing cellulose and an ionic liquid containing anions and cations as a solvent, the cations being provided with at least one atom selected among the group comprising nitrogen, oxygen, sulfur, and phosphorus supplied in a protonated form. Also disclosed are methods for the production and use thereof for a physical and chemical treatment.

    Cellulose solutions in ionic liquids based upon imidazolium cations

    公开(公告)号:NZ560914A

    公开(公告)日:2011-02-25

    申请号:NZ56091406

    申请日:2006-04-07

    Applicant: BASF AG

    Abstract: Disclosed is a solution comprising cellulose and an ionic liquid comprising anions and cations as solvent, wherein the cations comprise at least one atom selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus which is present in protonated form, and wherein the ionic liquid comprises at least one imidazolium cation of formula (IVe) and oligomers comprising this structure, where the radical R is hydrogen; and the radicals R1 to R4 are each, independently of one another, hydrogen, or unbranched or branched C1-C18 alkyl which is unsubstituted.

    CATALYST FOR CURING EPOXIDES
    56.
    发明专利

    公开(公告)号:CA2690295A1

    公开(公告)日:2008-12-18

    申请号:CA2690295

    申请日:2008-06-06

    Applicant: BASF AG

    Abstract: The invention relates to the use of 1, 3 substituted imidazolium salts of the formula (I), R1 and R3 independently representing an organic group having 1 to 20 C atoms, R2, R4, and R5 independently representing a H atom or an organic group having 1 to 20 C atoms, R4 and R5 also together being able to form an aliphatic or aromatic ring, X representing an anion having a pK B value of less than 13 (measured at 25°C, 1 bar in water or dimethylsulfoxide), and n representing 1, 2 or 3, where 1-ethyl-2,3-dimethylimidazolium acetate and 1-ethyl-2,3-dimethylimidazoliumacetate-acetic acid complex are excluded as the imidazolium salt, as a latent catalyst for curing compositions comprising epoxy compounds.

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