Chemistry: analytical and immunological testing – Synthetic or natural resin
Reexamination Certificate
2004-04-13
2008-09-23
Warden, Jill (Department: 1797)
Chemistry: analytical and immunological testing
Synthetic or natural resin
C436S174000, C436S056000, C422S105000
Reexamination Certificate
active
07427506
ABSTRACT:
A high throughput method to determine an amount of a comonomer in a copolymer sample of a copolymer system comprises the steps of providing a plurality of copolymer samples; creating an array of the copolymer samples; measuring a sample complex modulus of each of the copolymer samples at a comparison phase angle; and determining the amount of a comonomer in the copolymer sample by comparing the sample complex modulus to a calibration curve, wherein the calibration curve relates a concentration of the comonomer in the copolymer sample to a complex moduli of the copolymer sample determined at the comparison phase angle. A method of determining the amount of a comonomer in both a single copolymer sample, and in a high throughput scheme using the crossover modulus is also disclosed.
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Garcia-Franco Cesar A.
Harrington Bruce A.
Lohse David J.
Wittenbrink Robert Jay
ExxonMobil Chemical Patents Inc.
Moss Keri A
Warden Jill
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