1.
    发明专利
    未知

    公开(公告)号:NO985619D0

    公开(公告)日:1998-12-02

    申请号:NO985619

    申请日:1998-12-02

    Abstract: Disclosed is a method for producing an acyl group-containing hexaazaisowurtzitane derivative represented by the following formula (1), WAnH(6-n) wherein n represents an integer of 4 or 6, each A independently represents an acyl group having 1 to 10 carbon atoms, H represents a hydrogen atom, and W represents a hexavalent hexaazaisowurtzitane residue represented by the following formula (2): which comprises: providing a composition system comprising a mixed solvent of a first solvent and a second solvent respectively having high and low dissolving abilities for the desired compound, wherein the mixed solvent has the desired compound dissolved therein; and removing the first solvent having a high dissolving ability from the composition system to thereby deposit crystals of the desired compound. The desired compound, which is useful as a precursor of high performance explosive additive, i.e., hexanitrohexaazaisowurtzitane, can be easily produced in high purity form in high yield and at low cost.

    PROCESS FOR THE PREPARATION OF ACYLATED HEXAAZAISOWURTZITANE DERIVATIVES

    公开(公告)号:CA2260092A1

    公开(公告)日:1998-04-23

    申请号:CA2260092

    申请日:1997-10-14

    Abstract: A process for preparing acylated hexaazaisowurtzitane derivatives represented by general formula (1): WAnH(6-n), wherein n is 4 or 6; As are each independently C1-C10 acyl; H is hydrogen; and W is a hexavalent hexaazaisowurtzitane residue of formula (2), by preparing a composition comprising a mixed solvent comprising a first solvent exhibiting high solvency for one of the derivatives and a second solvent exhibiting low solvency for the derivative and the derivative dissolved in the mixed solvent, and removing the first solvent from the composition to crystallize the derivative. This process makes it possible to prepare the above derivatives at a high purity, in a high yield and at a low cost, the derivatives being useful as precursors for hexanitrohexaazaisowurtzitane which is an additive for high explosives.

    5.
    发明专利
    未知

    公开(公告)号:DE19681298T1

    公开(公告)日:1998-04-02

    申请号:DE19681298

    申请日:1996-03-06

    Abstract: PCT No. PCT/JP96/00535 Sec. 371 Date Sep. 5, 1997 Sec. 102(e) Date Sep. 5, 1997 PCT Filed Mar. 6, 1996 PCT Pub. No. WO96/27600 PCT Pub. Date Sep. 12, 1996The present invention provides a flame-retardant resin composition which comprises 100 parts by weight of a thermoplastic resin (A) and 0.1 to 30 parts by weight of one or more of organic phosphorus compounds (B) represented by the following formula (1) wherein X is R1, R2, R3 and R4 independently represent a phenyl group or a xylyl group with at least one being a phenyl group and at least one being a xylyl group, and n is a positive integer. The flame-retardant resin composition of the present invention is excellent in heat resistance, impact strength in the form of thin-walled moldings and blooming-free property on the surface of articles molded therefrom.

    Process for the preparation of acylated hexaazaisowurtzitane derivatives

    公开(公告)号:AU4473197A

    公开(公告)日:1998-05-11

    申请号:AU4473197

    申请日:1997-10-14

    Abstract: Disclosed is a method for producing an acyl group-containing hexaazaisowurtzitane derivative represented by the following formula (1), WAnH(6-n) wherein n represents an integer of 4 or 6, each A independently represents an acyl group having 1 to 10 carbon atoms, H represents a hydrogen atom, and W represents a hexavalent hexaazaisowurtzitane residue represented by the following formula (2): which comprises: providing a composition system comprising a mixed solvent of a first solvent and a second solvent respectively having high and low dissolving abilities for the desired compound, wherein the mixed solvent has the desired compound dissolved therein; and removing the first solvent having a high dissolving ability from the composition system to thereby deposit crystals of the desired compound. The desired compound, which is useful as a precursor of high performance explosive additive, i.e., hexanitrohexaazaisowurtzitane, can be easily produced in high purity form in high yield and at low cost.

Patent Agency Ranking