Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1982-04-08
1984-05-22
Goldberg, Gerald
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
G01N 1104
Patent
active
044493959
ABSTRACT:
Method and apparatus for testing thermoplastic material comprising: passing as a stream a fractional, continuous, molten and flowable sample of the material to and successively through each of either a controllable pumping zone maintained at constant temperature and pressure or controllable pressure zone maintained at constant flow rate and temperature, and a die zone to form a continuous strand of the material; measuring the viscosity of the material in the pumping and die zones; providing a measurement of elasticity by obtaining a measurement of percentage of cross-section area swell in the strand in passage from the die zone over a constant length distance downstream of a point of strand marking to a point of strand marking to a point of mark sensing; and combining the viscosity measurement with the elasticity measurement to provide fuller rheological characterization data for the material.
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De Rossett Terry A.
Kurtz Stuart J.
Shaw Montgomery T.
Goldberg Gerald
O'Brien, Jr. Gerald R.
Roskos Joseph W.
Union Carbide Corporation
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