C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
403/57
C09K 3/30 (2006.01) C07C 9/10 (2006.01) C07C 19/08 (2006.01) C07C 43/03 (2006.01) C08L 33/10 (2006.01)
Patent
CA 1299810
565-003 Abstract Compositions and a process for manufacture are provided for synthetic polymer-propellant systems that form cohesive foamed structures from which aqueous solutions can be expressed, where the useful temperature range over which these structures form is broadened by using a propellant mixture consisting predominantly of a propellant that is a poor solvent for the polymer and has a vapor pressure in the range of 10-35 psig at 20C in combination with a small amount of a propellant that is a good solvent for the polymer; and where these coherent foamed structures can be formed even with aqueous solutions containing 0 to about 30% alcohol, provided that insoluble fine-particle solids that do not pack and become difficult to redisperse are included in the composition.
558120
Marra Dorothea C.
Osipow Lloyd I.
Spitzer J. George
Macrae & Co.
Marra Dorothea C.
Osipow Lloyd I.
Spitzer J. George
LandOfFree
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