Method and a device for the continuous colorimetry of plastics m

Details Method and a device for the continuous colorimetry of plastics m Method and a device for the continuous colorimetry of plastics m

1997-06-26

1999-09-14

Hantis, K P

Optics: measuring and testing

By shade or color

G01J 346

Patent

active

059531290

ABSTRACT:
A method for the continuous colorimetry of plastics molding compounds, which involves light being introduced, via transmitter light pipes and a sensor head, into the melt of the molding compound and the light reflected there being passed, via receiver light pipes, to a spectrometer or multirange photometer, conjugate transmitter and receiver light pipes in each case being spaced equidistantly.

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patent: 5369483 (1994-11-01), Wilson
patent: 5657404 (1997-08-01), Buchanan et al.
Patent Abst. of Japan, vol. 18, No. 194 (p-1722), 1994 (JP 6 3276).
Patent Abst. of Japan, vol. 18, No. 302 (m-1618), 1994 (JP 6 64021).
Patent Abst. of Japan, vol. 18, No. 243 (m-1602), 1994 (JP 6 31793).
Patent Abst. of Japan, vol. 18, No. 133 (m-1571), 1994 (JP 5 318560).
Patent Abst. of Japan, vol. 17, No. 8 (m-1350), 1993 (JP 4 239623).

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