The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2008
Filed:
Apr. 13, 2004
Cesar A. Garcia-franco, Houston, TX (US);
David J. Lohse, Bridgewater, NJ (US);
Bruce A. Harrington, Houston, TX (US);
Robert Jay Wittenbrink, Kingwood, TX (US);
Cesar A. Garcia-Franco, Houston, TX (US);
David J. Lohse, Bridgewater, NJ (US);
Bruce A. Harrington, Houston, TX (US);
Robert Jay Wittenbrink, Kingwood, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
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.