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US 2012/0067586 A1Published application
Aqueous foaming compositions with high tolerance to hydrocarbons
AssigneeMomentive Performance Materials Inc.
InventorsKalman KOCZO, Oleg Tselnik, Benjamin Falk, George A. Policello
Life of this patent
Estimating the term…
Abstract
A composition for providing a stable foam with high tolerance to hydrocarbons includes (a) an aqueous liquid; (b) at least one water soluble or dispersible silicon-containing polyether foamant contained within the aqueous liquid; and (c) a non-aqueous liquid. The aqueous liquid includes water and brine. The non-aqueous liquid includes liquid hydrocarbons.
Claims23
A composition providing a stable foam, comprising
- (a) an aqueous liquid;
- (b) at least one, water soluble or dispersible, silicon-containing polyether foamant contained within the aqueous liquid;
- and
- (c) a non-aqueous liquid
- where
- the aqueous liquid (a) comprises water and minerals (brine),
- the non-aqueous liquid (c) substantially comprises liquid hydrocarbons, and
- the silicon-containing polyether foamant (b) in the aqueous liquid (a) is defined as
- MaMAbMBcMCdMEeDfDEgThTEiQj with
- M=R1R2R3SiO1/2;
- MA=R4R5R6SiRE;
- MB=[(R7R8R9Si)kR10]lSi(R11)m(R12)nRE;
- MC=[(R13R14R15Si)oR16]pSi(R17)q(R18)rO1/2;
- ME=R19R20RESiO1/2;
- D=R21R22SiO2/2;
- DE=R23RESiO2/2;
- T=R24SiO3/2;
- TE=RESiO2/2;
- and
- Q=SiO4/2;
- wherein
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, R12, R13, R14, R15, R17, R18, R19, R20, R21, R22, R23 and R24 are each independently selected from the group of OR25 or monovalent hydrocarbon radicals, optionally containing heteroatoms and hydroxyl groups, having from about 1 to about 20 carbon atoms;
- R10 and R16 are polyvalent linear or branched unsaturated or saturated hydrocarbon radicals, optionally containing heteroatoms and hydroxyl groups, subject to the limitation that the valency of R10 and R16 is at least one and less than about 30 carbon atoms;
- RE is a monovalent radical defined as:
- —R26—(C2H4O)s(C3H8O)t(C4H8O)u—R27 with the provision that the polymer must contain at least one RE group;
- R25 is a monovalent, linear or branched unsaturated or saturated hydrocarbon radical optionally containing heteroatoms and hydroxyl groups, having from about 1 to about 20 carbon atoms;
- R26 is oxygen or a divalent, linear or branched unsaturated or saturated hydrocarbon radical, optionally containing heteroatoms and hydroxyl groups, with about 2 to about 30 carbon atoms;
- R27 is H or —C(═O)CH3 or a monovalent saturated or unsaturated hydrocarbon radical, optionally containing heteroatoms and hydroxyl groups, having from 1 to about 30 carbon atoms;
- subscripts a, d, e, f, g, h, i and j are 0 or a positive integer subject to the limitation 1≦a+b+c+d+e+f+g+h+i+j<about 300;
- subscript b is 0 or 1 subject to the limitation if b is 1 then a+c+d+e+f+g+h+i+j=0;
- subscript c is 0 or 1 subject to the limitation if c is 1 then a+b+d+e+f+g+h+i+j=0;
- subscript k is positive subject to the limitation 0<k<about 30 and k is equal the valency of R10−1;
- subscripts l, m and n are zero or positive subject to the limitation l+m+n=3;
- subscript o is positive subject to the limitation 0<o<about 30 and o is equal the valency of R16−1;
- and
- subscripts s, t and u are zero or positive subject to the limitation that s+t+u≧about 3.
33 more elements
A method of making a stable foam from aqueous liquids by combining said aqueous liquids with a gas, in the presence of hydrocarbon liquids, with a foamant comprising at least one, water soluble or dispersible, silicon-containing polyether defined as
- MaMAbMBcMCdMEeDfDEgThTEiQj with
- M=R1R2R3SiO1/2;
- MA=R4R5R6SiRE;
- MB=[R7R8R9Si)kR10]lSi(R11)m(R12)nRE;
- MC=[R13R14R15Si)oR16]pSi(R17)q(R18)rO1/2;
- ME=R19R20RESiO1/2;
- D=R21R22SiO2/2;
- DE=R23RESiO2/2;
- T=R24SiO3/2;
- TE=RESiO2/2;
- and
- Q=SiO4/2;
- wherein
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R11, R12, R13, R14, R15, R17, R18, R19, R20, R21, R22, R23 and R24 are each independently selected from the group of OR25 or monovalent hydrocarbon radicals, optionally containing heteroatoms and hydroxyl groups, having from about 1 to about 20 carbon atoms;
- R10 and R16 are polyvalent linear or branched unsaturated or saturated hydrocarbon radicals, optionally containing heteroatoms and hydroxyl groups, subject to the limitation that the valency of R10 and R16 is at least one and less than about 30 carbon atoms;
- RE is a monovalent radical defined as:
- —R26—(C2H4O)s(C3H6O)t(C4H8O)u—R27 with the provision that the polymer must contain at least one RE group;
- R25 is a monovalent, linear or branched unsaturated or saturated hydrocarbon radical optionally containing heteroatoms and hydroxyl groups, having from about 1 to about 20 carbon atoms;
- R26 is oxygen or a divalent, linear or branched unsaturated or saturated hydrocarbon radical, optionally containing heteroatoms and hydroxyl groups, with about 2 to about 30 carbon atoms;
- R27 is H or —C(═O)CH3 or a monovalent saturated or unsaturated hydrocarbon radical, optionally containing heteroatoms and hydroxyl groups, having from 1 to about 30 carbon atoms;
- subscripts a, d, e, f, g, h, i and j are 0 or positive subject to the limitation 1≦a+b+c+d+e+f+g+h+i+j<300;
- subscript b is 0 or 1 subject to the limitation if b is 1 then a+c+d+e+f+g+h+i+j=0;
- subscript c is 0 or 1 subject to the limitation if c is 1 then a+b+d+e+f+g+h+i+j=0;
- subscript k is positive subject to the limitation 0<k<30 and k is equal the valency of R10−1;
- subscripts l, m and n are zero or positive subject to the limitation l+m+n=3;
- subscript o is positive subject to the limitation 0<o<30 and o is equal the valency of R16−1;
- and
- subscripts s, t and u are zero or positive subject to the limitation that s+t+u≧3.
25 more elements
Dependencies are inferred from the claim text.