Apparatus and method for polymer melt stream analysis

Details Apparatus and method for polymer melt stream analysis Apparatus and method for polymer melt stream analysis

1983-06-13

1985-07-16

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

250574, 356338, G01N 2189

Patent

active

045293066

ABSTRACT:
Apparatus and method for the analysis of a stream of molten polymer for the presence of unwanted voids, gels and particles of solids by observation of the stream, utilizing an observation probe and an illuminating probe placed at an illuminating angle to the observation probe so as to establish an image observable at an observation point remote from the stream.

REFERENCES:
patent: 3758787 (1973-09-01), Sigrist
patent: 3864044 (1975-02-01), Lyshkow
patent: 4043669 (1977-08-01), Gehatia et al.
patent: 4075462 (1978-02-01), Rowe
patent: 4139306 (1979-02-01), Norton
patent: 4395676 (1983-07-01), Hollinger et al.
patent: 4500793 (1985-02-01), Kuramoto

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