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:
Jul. 31, 2001
Filed:
Dec. 28, 1999
David C. Boris, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method is provided which allows for monitoring changes in osmotic pressure of a sample as a function of time and/or temperature. This is accomplished by placing a sample of a solution at an initial temperature into the sample cell above the membrane supported in the sample cell; sealing the sample in the sample cell; introducing gas at an elevated pressure to the sample cell to generate a dialyzate by allowing a portion of the solution to dialyze through the membrane; varying the elevated pressure of the gas until equilibrium across the membrane is substantially achieved; changing the temperature of the solution over time; measuring the osmotic pressure at predetermined intervals of time; and calculating the changes in the osmotic pressure. Alternatively, the method for monitoring changes in osmotic pressure of a sample (wherein the changes are the result of a chemical reaction generated in the sample cell) can be practiced by placing a sample of a solution at an initial temperature into a sample cell above a membrane supported in the sample cell; adding reactants to the sample; sealing the sample and reactants in the sample cell; introducing gas at an elevated pressure to the sample cell to generate a dialyzate by allowing a portion of the solution to dialyze through the membrane; varying the elevated pressure of the gas until equilibrium across the membrane is substantially achieved; measuring the osmotic pressure at predetermined intervals of time; and calculating the changes in the osmotic pressure.