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United States Patent m

Ellis

US005637646A [li] Patent Number: [45] Date of Patent:

5,637,646 Jun. 10, 1997

[54] BULK RADICAL POLYMERIZATION USING A BATCH REACTOR

[75] Inventor: Mark F. Ellis, Maplewood, Minn.

[73] Assignee: Minnesota Mining and

Manufacturing Company, St. Paul,
Minn.

[21] Appl. No.: 572^10
[22] Filed: Dec 14,1995

[51] Int CI.6 C08F 2/02

[52] U.S. CI 525/309; 526/88; 526/307.7;

526/285

[58] Field of Search 525/309; 526/88,

526/307.7, 328.5

[56] References Cited

U.S. PATENT DOCUMENTS

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Editor), ACS Symposium Series 166, American Chemical
Society, Washington, D.C. 1981.

G. Odian, Principles of Polymerization, Third Edition, A
Wiley-Interscience Publication, pp. 301-302, 1991.
W.H. Ray, "On the Mathematical Modeling of Polymeriza-
tion Reactors" in J. Macromol. Sci.—Revs. Macromol.
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M.E. Sacks et al., "Effect of Temperature Variations on
Molecular Weight Distributions: Batch, Chain Addition
Polymerizations" in Chem. Eng. ScL, vol. 28, pp. 241-257,
1973.

D.N. Schulz, "Functionally Terminal Polymers via Anionic Methods" paper presented at Houston meeting, vol. 21, No. 1, pp. 32-33, American Chemical Society, Mar. 1980. J.A. Biesenberger et al., "A Study of Chain Addition Polymerizations with Temperature Variations: I. Thermal Drift and Its Effect on Polymer Properties" in Polymer Engineering and Science, Nov. 1974, vol. 14, No. 11. J.A. Biesenberger et al.. "A Study of Chain Addition Polymerizations with Temperature Variations: H. Thermal Runaway and Instability—A Computer Study" in Polymer Engineering and Science, Feb. 1976, vol. 16, No. 2. D.H. Sebastian et al., "A Study of Chain Addition Polymerizations with Temperature Variations: HI. Thermal Runaway and Instability in Styrene Polymerization—An Experimental Study" in Polymer Engineering and Science, Feb. 1976, vol. 16, No. 2.

D.H. Sebastian et al., "A Study of Chain Addition Polymerizations with Temperature Variations: IV. Copolymerizations—Experiments with Styrene-Acrylonitrile" in Polymer Engineering and Science, Feb. 1979, vol. 19, No. 3. J.A. Biesenberger et al., "Thermal Ignition Phenomena in Chain Addition Polymerizations" in Applied Polymer Symposium, No. 26, 211-236, John Wiley & Sons, 1975.

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