Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1985-05-24
1986-12-16
Adee, John
Furnaces
With fuel treatment means
Preliminary refuse treatment means
210656, 422 70, B01D 1508
Patent
active
046295666
ABSTRACT:
The molecular weight and molecular weight distribution of diverse ultra-high molecular weight water soluble polymers is rapidly determined based on apparent size by passage of extremely dilute samples of the polymer (1-250 ppm) through a column of nonporous packing whereby separation into molecular weight (apparent size) fractions is obtained predominantly based on flow (i.e., hydrodynamic chromatography). Detection of the extremely dilute sample polymer is accomplished, e.g., by tagging the polymer with a fluorescent agent and using a flow-through fluorometer detector. The molecular weight characterization of the polymers is determined independent or less dependent of the composition of the polymer by analyzing the sample in its nonionized form.
REFERENCES:
patent: 3002823 (1961-10-01), Flodin et al.
patent: 3059524 (1962-10-01), Grassmann
patent: 3298925 (1967-01-01), Mosback
patent: 3326875 (1967-06-01), Moore et al.
patent: 3694149 (1972-09-01), Matsumoto
patent: 3865717 (1975-02-01), Small
patent: 3962206 (1976-06-01), Butler
patent: 4280923 (1981-07-01), Small et al.
"Molecular Size Determination of Xanthan Polysaccharide", by Prud'homme et al. Carbohydrate Research, 106, (1982), pp. 225-233.
"Separations of High Molecular Weight Water Soluble Polymers by Means of Hydrodynamic Chromatography," by K. A. Larson, Department of Chemical Eng., Princeton University, (1983).
"Hydrodynamic Chromatography", by Small et al., Anal. Chem., 54, 892A, (1982).
"Use of Isocyanides for the Immobilization of Biological Molecules", by Vretblad et al. in Acta Chem., Scand. 27, No. 8, 2769-2780, (1973).
"Elution Volume Measurement in Size Exclusion Chromatography", by Chamberlin et al. in Anal. Chem. 55, 428-432, (1983).
"Development and Application of an Integrated, High Speed, Computerized Hydrodynamic Chromatograph", by McGowan et al. Journal of Colloid and Interface Science, vol. 1, No. 1, Sept., 94-106, (1982).
"Molecular Weight of Xanthan Polysaccharide", by Holzwarth Carbohydrate Research, 66, 173-186, (1978).
"Orientation of Rigid Macromolecules During Hydrodynamic Chromatography Separations", by Prud'homme et al., Separation Science Tech., 18, (2), 121-134, (1983).
"Separation Mechanisms in Gel Permeation Chromatography", by W. W. Yau, C. P. Malone, and H. L. Suchan, Separ. Science 5, 259, (1970).
"Exclusion Chromatography", by K. O. Pedersen, Archives of Biochemistry and Biophysics, Supplement 1, 157-168, (1962).
"Extraparticle Diffusion, Effects in Gel Permeation Chromatography II. Experimental Results", by A. Ouano and J. A. Bisenberger, Appl. Polymer Science, 14, 483, (1970).
"Separation by Flow", by E. A. DiMarzio and C. M. Guttman, Macromolecules, 3, 131, (1970).
"Gel Permeation Chromatography: On the Mechanism of Separation by Flow", by S. Mori, R. S. Porter and J. F. Johnson, Analytical Chem., 46, No. 11, 1599, Sept. (1974).
Langhorst Martin W.
Prud'homme Robert K.
Stanley, Jr. Frederick W.
Adee John
Holldorson Burke M.
The Dow Chemical Company
LandOfFree
Method for characterizing the molecular weight and molecular wei does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for characterizing the molecular weight and molecular wei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for characterizing the molecular weight and molecular wei will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-244302