31.
    发明专利
    未知

    公开(公告)号:DK0609540T3

    公开(公告)日:1998-09-21

    申请号:DK93120448

    申请日:1993-12-17

    Abstract: A process of spraying a polymeric compsn. to form a spray of finely atomised liq. droplets comprises (1) forming in a closed system a liq. mixt. a temp. T0 comprising: (a) a non-volatile fraction contg. at least one polymer that is cable of being sprayed; and (b) a solvent fraction that is partially miscible with (a) and contains an amt. of at least one compressed fluid sufficient, when it is added to (a); (i) to make the viscosity of the mixt. suitable for spraying; and (ii) to let the liq. mixt. form a liq. compressed fluid phase at temp. T0 the compressed fluid being a gas at 0 deg. C and 1 atmos. pressure; and (2) spraying the liq. mixt. by passing it at temp. T0 and spray pressure P, into an orifice, through which the mixt. flows to form a liq. spray, where spray pressure P1 is above the min. pressure P2 at which the liq. mixt. forms a liq. compressed fluid phase at temp. T0, thus passing the liq. mixt. through the liq.-liq. region of the polymer compsn. and compressed fluid during depressurisation.

    32.
    发明专利
    未知

    公开(公告)号:DE69316733T2

    公开(公告)日:1998-05-20

    申请号:DE69316733

    申请日:1993-12-17

    Abstract: A process of spraying a polymeric compsn. to form a spray of finely atomised liq. droplets comprises (1) forming in a closed system a liq. mixt. a temp. T0 comprising: (a) a non-volatile fraction contg. at least one polymer that is cable of being sprayed; and (b) a solvent fraction that is partially miscible with (a) and contains an amt. of at least one compressed fluid sufficient, when it is added to (a); (i) to make the viscosity of the mixt. suitable for spraying; and (ii) to let the liq. mixt. form a liq. compressed fluid phase at temp. T0 the compressed fluid being a gas at 0 deg. C and 1 atmos. pressure; and (2) spraying the liq. mixt. by passing it at temp. T0 and spray pressure P, into an orifice, through which the mixt. flows to form a liq. spray, where spray pressure P1 is above the min. pressure P2 at which the liq. mixt. forms a liq. compressed fluid phase at temp. T0, thus passing the liq. mixt. through the liq.-liq. region of the polymer compsn. and compressed fluid during depressurisation.

    34.
    发明专利
    未知

    公开(公告)号:DE69404159D1

    公开(公告)日:1997-08-14

    申请号:DE69404159

    申请日:1994-09-27

    Abstract: The present invention is directed to methods for spraying polymeric compositions with supercritical or subcritical compressed fluids such as carbon dioxide or ethane over a wider range of spray conditions to provide improved spray application quality with reduced emission of solvent. The methods are accomplished by using an elongated spray orifice to transform narrow, fishtail, liquid-film sprays to wider, feathered, decompressive sprays.

    38.
    发明专利
    未知

    公开(公告)号:DK0388928T3

    公开(公告)日:1993-10-25

    申请号:DK90105353

    申请日:1990-03-21

    Abstract: Disclosed are methods and apparatus for spraying liquid compositions by airless spray techniques so as to obtain wider spray patterns without having to alter the construction or configuration of conventional nozzles, nozzle tips or spray guns. By means of the present disclosure, the width of a spray pattern may be changed while the spraying operation is being conducted.

    39.
    发明专利
    未知

    公开(公告)号:DK0388916T3

    公开(公告)日:1993-08-02

    申请号:DK90105329

    申请日:1990-03-21

    Abstract: The present invention relates to precursor adhesive coating compositions which optionally contain water, which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor adhesive coating composition onto a substrate to be coated. Processes for spraying these precursor adhesive coating compositions are also disclosed.

    40.
    发明专利
    未知

    公开(公告)号:DE69001190D1

    公开(公告)日:1993-05-06

    申请号:DE69001190

    申请日:1990-03-21

    Abstract: The present invention relates to precursor adhesive coating compositions which optionally contain water, which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor adhesive coating composition onto a substrate to be coated. Processes for spraying these precursor adhesive coating compositions are also disclosed.

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