公开(公告)号：DE59604372D1

公开(公告)日：2000-03-09

申请号：DE59604372

申请日：1996-03-18

Applicant: EMTEC MAGNETICS GMBH

Inventor： LEHNER AUGUST ,  JAKUSCH HELMUT ,  KOCH VOLKER ,  OHLINGER MANFRED ,  KOHL ALBERT ,  LENZ WERNER ,  SCHNEIDER NORBERT ,  HEILMANN PETER ,  VEITCH JOHN ,  HOFFMANN ERICH ,  HUEBNER WERNER ,  JACHOW HARALD ,  LEHNERT RUDI

IPC: B32B27/20 ,  B32B33/00 ,  C01G37/02 ,  G11B5/708 ,  G11B5/73 ,  G11B5/733 ,  G11B5/738 ,  G11B5/78

Abstract: Tape-like magnetic recording media having a nonmagnetic substrate and at least one layer applied to the substrate having incorporated into at least one of these layers, an inorganic needle-shaped pigment which serves as a supporting pigment and has a ratio of the average length to the average diameter of the pigment of at least 3, and the mean modulus of elasticity of the layers is not less than 15 Gpa in the longitudinal direction of the tape-like recording media.

公开(公告)号：DE59611170D1

公开(公告)日：2005-01-27

申请号：DE59611170

申请日：1996-06-20

Applicant: EMTEC MAGNETICS GMBH

Inventor： VEITCH JOHN ,  BETTINGER GUENTER ,  SCHNEIDER NORBERT

IPC: G01K11/12 ,  G01K11/06

Abstract: PCT No. PCT/EP96/02677 Sec. 371 Date Dec. 17, 1997 Sec. 102(e) Date Dec. 17, 1997 PCT Filed Jun. 20, 1996 PCT Pub. No. WO97/03341 PCT Pub. Date Jan. 30, 1997An apparatus for irreversibly indicating that the permissible temperature of stored products has been temporarily exceeded is described, in which a container has a heat-conducting connection to the product to be monitored and contains, in its interior, a medium having a melting point which is just above the permissible storage temperature, magnetizable particles being suspended in the medium. Moreover, solid magnetizable bodies are uniformly distributed in the container. After the deep-freezing process is complete, the magnetizable particles and the solid bodies are magnetized. If the permissible storage temperature is exceeded, the suspension becomes liquid and the pigments accumulate on the solid bodies, an optical indicator present on a wall of the container and visible from the outside detecting that the permissible temperature has been exceeded.