Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1997-01-31
1998-09-29
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 20, 522 23, 526 89, 526216, 526309, 423610, C08F 246
Patent
active
058146784
ABSTRACT:
The present invention provides for the regulation of the rate of a chemical reaction within the aqueous micelles within a microemulsion of water in supercritical carbon dioxide. Increase in pressure increases the concentration of an ionized reaction component (reactant, catalyst or reaction initiator) within the reverse micelles, thus increasing the rate of the reaction or allowing the reaction to initiate. Similarly, the reaction rate can be slowed by decreasing the pressure, thus decreasing the amount of water and ionized components in the reverse micelles. Decrease in the pressure below a critical level results in the reaction stopping when the concentration of a ionized reaction component falls to a sufficiently low level. Advantages of the present methods of regulating reactions in microemulsions in supercritical carbon dioxide include the speed with which pressure can be changed, the potential for the production of very small and uniform particles (reaction products, such as from polymerization reactions) and the nontoxic nature of the water and carbon dioxide portions of the microemulsions.
REFERENCES:
patent: 4925790 (1990-05-01), Blanch et al.
patent: 5266205 (1993-11-01), Fulton et al.
patent: 5312882 (1994-05-01), DeSimone et al.
patent: 5514759 (1996-05-01), DeSimone et al.
Eckert, C.A. et al. (1996) Nature 383:313-318.
Hoefling, T.A. et al (1991) J. Phys. Chem. 95:7127-7129.
DeSimone, J.M. et al. (1994) Science 265:356-359.
Johnston, K.P. et al. (1996) Science 271:624-626.
DeSimone, J.M. et al. (1992) Science 257:945-947.
Randolph and Carlier (1992) J. Phys. Chem. 96:5146-5151.
Sarofin N.
Schofer Joseph L.
University Technology Corp.
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