中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

15 records (took 0.018 seconds)

    Apparatus for the continuous removal of volatile constituents from polyamides
    6.
    发明专利
    Apparatus for the continuous removal of volatile constituents from polyamides 未知

    公开(公告)号：GB1097873A

    公开(公告)日：1968-01-03

    申请号：GB1865865

    申请日：1965-05-04

    Applicant: BASF AG

    Inventor： MAAHS PAUL ,  MATTHIES HANS GEORG ,  WENGER FRIEDRICH

    IPC: B01D19/00 ,  C08G69/46 ,  D01D1/10

    Abstract: Volatile constituents are removed from molten polyamides, e.g. polymers of C6- 12 lactams such as capro, oenantho-, capryl- or laurolactam, in the shown film evaporator by distributing the molten polyamide at 240 DEG to 300 DEG C. over the walls of chamber 1 via slot die 7 movable, below suction pipe 5, along the vertical axis. Subatmospheric pressure of 0.1 to 50 mm. Hg. is maintained in the chamber and the purified polymer is continuously removed by motor-driven screw 10 the upper portion of which is constructed as a stirrer (9).

    Production of bulked yarn
    8.
    发明专利
    Production of bulked yarn 未知

    公开(公告)号：GB1125148A

    公开(公告)日：1968-08-28

    申请号：GB5451765

    申请日：1965-12-23

    Applicant: BASF AG

    Inventor： MARTIN WOLFGANG ,  LINGE HERMANN ,  HENDUS HANS ,  WENGER FRIEDRICH

    IPC: D02G1/02

    Abstract: 1,125,148. Crimpimg yarns. BADISCHE ANILIN & SODA FABRIK A.G. 23 Dec., 1965 [24 Dec., 1964], No. 54517/65. Heading D1F. In crimping a multifilament yarn of a thermoplastic high polymer e.g. a polyamide such as nylon 6, polyester or polypropylene, by the false-twist and heat-set method, the polymer contains 0.05-1% by weight of a nucleating agent e.g. a plastic material the melting point of which is higher than the yarn material, nylon 22, pigments in highly divided condition, magnesium oxide or dyes. The bulk effects are stated to be enhanced.

Patent Agency Ranking