Surfactants for use in liquid/supercritical CO.sub.2

Details Surfactants for use in liquid/supercritical CO.sub.2 Surfactants for use in liquid/supercritical CO.sub.2

1997-08-14

1998-08-04

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

8142, 427421, C08F 244, D06L 100, B05D 102

Patent

active

057895058

ABSTRACT:
Acetylenic alcohols and diols have been found which are soluble in liquid/supercritical CO.sub.2 and exhibit surface active properties. These alcohols and diols act as surfactants by lowering the surface tension between CO.sub.2 and mobile CO.sub.2 -phobic substances which are contacted with the CO.sub.2.

REFERENCES:
patent: 4012194 (1977-03-01), Maffei
patent: 4806171 (1989-02-01), Whitlock et al.
patent: 4913235 (1990-04-01), Harris et al.
patent: 5238671 (1993-08-01), Matson et al.
patent: 5266205 (1993-11-01), Fulton et al.
patent: 5306350 (1994-04-01), Hoy et al.
patent: 5312882 (1994-05-01), DeSimone et al.
patent: 5412958 (1995-05-01), Iliff et al.
patent: 5679737 (1997-10-01), DeSimone et al.
DeSimone, J.M. et al. "Dispersion Polymerizations in Supercritical Carbon Dioxide," Science. 265 (Jul. 15, 1994) 356-359.
Hoefling, T.A., et al. "Design and Synthesis of Highly CO.sub.2 -Soluble Surfactants and Chelating Agents," Fluid Phase Equilibria. 83 (1993) 203-212. (Month Unknown).
Hoefling, T.A., et al. "Microemulsions in Near-Critical and Supercritical CO.sub.2 " J. Phys. Chem. 95 (1991) 7127-7129. (Month Unknown).
Kosswig, K. et al. "Surfactants." vol. A25 of Ullman's Encyclopedia of Industrial Chemistry. Ed. B. Elvers, S. Hawkins, and W. Russey. VCH Verlagsgesellschaft mbH: Weinheim, Germany, 1994. 747-755 (Month Uknow).
Cahn, A. et al. "Surfactants and Detersive Systems." vol. 22 of Kirk-Othmer Encyclopedia of Chemical Technology. 3.sup.rd edition. John Wiley & Sons: New York, NY, 1983. 332-335. (Month Unknown).
Motyl, K. M. "Cleaning with Supercritical CO.sub.2 " NASA Tech Briefs MFS-29611. George C. Marshall Space Flight Center: Alabama. (Date Unknown).
Hort, E. V. et al. "Acetylene-Derived Chemicals." vol. 1 of Kirk-Othmer Encyclopedia of Chemical Technology. Fourth edition. John Wiley & Sons: New York, NY, 1991. 195-199. (Month Unknown).
Schwartz, J. "The Importance of Low Dynamic Surface Tension in Waterborne Coatings." Journal of Coatings Technology. (Sep. 1992).
Schwartz, J. "An Additives Approach to Defect Elimination in Thermoplastic Waterborne Industrial Maintenance Coatings." Journal of Coatings Technology. (Jan. 1995).
Surfynol.RTM. 400 Series Surfactants. Air Products and Chemicals, Inc., Trade Literature. Pub #120-9427 (Date Unknown).
Chemical Abstract No. 111:208459, 1988 (Month Unknown).
Chemical Abstract No. 117:51308, 1992 (Month Unknown).
Chemical Abstract No. 117:244772, 1992 (Month Unknown).
Page, et al. "Effect of Phase Behavior on Supercritical Fluid Chromatographic and Extraction Performance."In Kiran et al, Supercritcal Fluids (1994) p. 641.

Affiliated with

Also associated with

Rating

Surfactants for use in liquid/supercritical CO.sub.2 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surfactants for use in liquid/supercritical CO.sub.2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surfactants for use in liquid/supercritical CO.sub.2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1178129