Viscosity measurement
First Claim
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1. A method of characterising a polymer under test, comprising:
- detecting acoustic emissions from said polymer flowing in a conduit to provide acoustic emission data, comparing the acoustic emissions data obtained against acoustic emission data from a polymer, or a series of polymers, of known characteristics, and thereby characterising the polymer.
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Abstract
The present invention relates to a method and apparatus of determining the rheological properties of a polymer flowing in a conduit. The invention provides a method of characterising a polymer under test, comprising: Detecting acoustic emissions from said polymer flowing in a conduit to provide acoustic emission data, comparing the acoustic emissions data obtained against acoustic emission data from a polymer, or a series of polymers, of known characteristics, and thereby characteristing the polymer.
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13 Claims
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1. A method of characterising a polymer under test, comprising:
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detecting acoustic emissions from said polymer flowing in a conduit to provide acoustic emission data, comparing the acoustic emissions data obtained against acoustic emission data from a polymer, or a series of polymers, of known characteristics, and thereby characterising the polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for characterizing a molten polymer, comprising:
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a) an acoustic sensor capable of detecting acoustic emissions from the polymer and thereby generating a signal; and
b) means for comparing the signal against acoustic emissions data from molten polymers of known characteristics, said apparatus being arranged to thereby characterise said polymer. - View Dependent Claims (11, 12)
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13. Use of an acoustic rheometer comprising
a) an acoustic Bensor capable of detecting acoustic emissions from a polymer for controlling a polymerisation reaction producing said polymer.
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