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    Yarn bulking apparatus
    1.
    发明授权
    Yarn bulking apparatus 失效

    公开(公告)号：US3583140A

    公开(公告)日：1971-06-08

    申请号：US3583140D

    申请日：1969-08-12

    Applicant: BASF AG

    Inventor： LORENZ FRIEDRICH ,  LABER WALTER

    IPC: D02G1/04 ,  D02G1/02 ,  D02G1/16

    CPC classification number: D02G1/04

    Abstract: Apparatus for manufacturing bulky yarns employing flowing gaseous or liquid media by the false twist technique. It consists of a tubular yarn guide chamber and a lateral conduit for the fluid medium disposed perpendicularly to the axis of the guide chamber and opening into same tangentially to the internal wall thereof, the guide chamber being cylindrical and at the yarn inlet end having a drastically reduced cross-sectional area compared to the cross section of the remainder of the chamber. The fluid inlet is located immediately downstream of the yarn inlet end (in the direction of movement of the yarn) in the enlarged portion of the chamber. The latter narrows at a point downstream of the fluid inlet (in the direction of movement of the yarn) and subsequently opens into a tubular duct the internal wall of which contains groovelike recesses over at least part of its length.

    4.
    发明专利
    未知

    公开(公告)号：FR1212499A

    公开(公告)日：1960-03-24

    申请号：FR1212499D

    申请日：1958-10-20

    Applicant: BASF AG

    Inventor： LORENZ FRIEDRICH

    A process for the production of expandable thermoplastics in a finely particled form and apparatus therefore
    9.
    发明专利
    A process for the production of expandable thermoplastics in a finely particled form and apparatus therefore 未知

    公开(公告)号：GB908089A

    公开(公告)日：1962-10-17

    申请号：GB2340560

    申请日：1960-07-05

    Applicant: BASF AG

    Inventor： LORENZ FRIEDRICH ,  SCHROEDER PAUL-HEINZ

    IPC: B29C44/34 ,  C08J9/16

    Abstract: Expandable thermoplastic polymeric material is produced in finely-particled form by mechanically mixing a thermoplastic polymeric material and a readily volatile organic expanding agent; forcing the resultant mixture, at a temperature of at least 35 DEG C. but not more than 150 DEG C. above the softening temperature of the polymeric material, into a pressure chamber, the pressure in the chamber being at least equal to the pressure of the expanding agent at the temperature of the mixture; cooling the mixture in the pressure chamber to a temperature below the softening temperature of the polymeric material; comminuting the mixture; and discharging it from the pressure chamber in a finely-particled and substantially non-porous form. Specified thermoplastic polymeric materials are polystyrene, polymethacrylic acid esters and polyvinyl chloride. Exemplified expanding agents are butane, isobutylene, pentane, hexane, cyclopentane, cyclohexane, acetane diethyl ether and carbon tetrachloride.ALSO:Expandable thermoplastic polymeric material is produced in finely particled form by mechanically mixing a thermoplastic polymeric material and a readily volatile organic expanding agent; forcing the resultant mixture, at a temperature of at least 35 DEG C but not more than 150 DEG C above the softening temperature of the polymeric material, into a pressure chamber, the pressure in the p chamber being at least equal to the pressure of the expanding agent at the temperature of the mixture; cooling the mixture in the pressure chamber to a temperature below the softening temperature of the polymeric material; comminuting the mixture; and discharging it from the pressure chamber in a finely particled and substantially non-porous form. Specified thermoplastic polymeric materials are polystyrene, polymethacrylic acid esters and polyvinyl chloride. Exemplified expanding agents are butane, isobutylene, pentane, hexane, cyclopentane, cyclohexane, acetone, diethyl ether and carbon tetrachloride.

    An improved delivery apparatus for lumpy material
    10.
    发明专利
    An improved delivery apparatus for lumpy material 未知

    公开(公告)号：GB829534A

    公开(公告)日：1960-03-02

    申请号：GB2465158

    申请日：1958-07-31

    Applicant: BASF AG

    Inventor： HAMPRECHT GUENTHER ,  BELLMUTH HEINRICH ,  LORENZ FRIEDRICH

    IPC: B65G65/48

    Abstract: 829,534. Receptacle discharge devices. BADISCHE ANILIN- & SODA-FABRIK A.G. July 31, 1958 [Aug. 2, 1957], No. 24651/58. Class 78 (1). Lumpy material from receptacle 1 falls on to stationary plate 2 from which it is discharged into hopper 3 by rotating scrapers 6, the scrapers being secured to the upper part 4 of the hopper 3, said upper part 4 having a toothed crownwheel 5 by which it is rotated. The scrapers are adjustable.

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