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US 2007/0184005 A1Published application
Hydrolysis resistant organomodified trisiloxane surfactants
AssigneeMomentive Performance Materials Inc.
InventorsGeorge A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Zijun Xia
Life of this patent
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Abstract
Three types of trisiloxane surfactants having the basic formula: MDM′ are described wherein the substituents on the differing M and M′ groups in conjunction with a pendant polyalkylene oxide substituents on the D group to render the surfactant resistant to hydrolysis under either basic or acidic conditions.
Claims104
A silicone composition comprising a silicone having the formula:
- M1D1M2
- wherein
- M1=(R1)(R2)(R3)SiO1/2;
- M2=(R4)(R5)(R6) SiO1/2;
- and
- D1=(R7)(Z) SiO2/2
- where
- R1 is selected from the group of monovalent hydrocarbon radicals consisting of branched or linear hydrocarbon group consisting of 2 to 4 carbons, aryl, and an alkyl hydrocarbon group of 4 to 9 carbons containing aryl substituents of 6 to 20 carbon atoms;
- R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group;
- Z is an alkyleneoxide group of the general formula:
- R8(C2H4O)a(C3H6O)b(C4H8O)cR9, where R8 is a linear or branched divalent hydrocarbon radical of 2, 3, 5, 6, 7, 8, or 9 carbon atoms;
- R9 is selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl, and the subscripts a, b and c are zero or positive and satisfy the following relationships:
- 2≦a+b+c≦20 with a≧2.
10 more elements
A silicone composition comprising a silicone having the formula:
- M1D1M2
- wherein
- M1=(R1)(R2)(R3)SiO1/2;
- M2=(R4)(R5)(R6) SiO1/2;
- and
- D1=(R7)(Z) SiO2/2
- where
- R1 is selected from the group of monovalent hydrocarbon radicals consisting of branched or linear hydrocarbon group consisting of 2 to 4 carbons, aryl, and an alkyl hydrocarbon group of 4 to 9 carbons containing aryl substituents of 6 to 20 carbon atoms;
- R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group;
- Z is an alkyleneoxide group of the general formula:
- R8(C2H4O)a(C3H6O)b(C4H8O)cR9, where R8 is a linear or branched divalent hydrocarbon radical of 2, 3, 5, 6, 7, 8, or 9 carbon atoms;
- R9 is selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl, and the subscripts a, b and c are zero or positive and satisfy the following relationships:
- 2≦a+b+c≦20 with a≧2, wherein said silicone composition has an enhanced resistance to hydrolysis.
10 more elements
A silicone composition comprising a silicone having the formula:
- M3D2M4
- wherein
- M3=(R10)(R11)(R12)SiO1/2;
- M4=(R13)(R14)(R15) SiO1/2;
- and
- D2=(R16)(Z′) SiO2/2
- where R10, R11, R12 R13, R14, R15 and R16 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and an alkyl hydrocarbon group of 4 to 9 carbons containing an aryl substituents of 6 to 20 carbon atoms;
- Z′ is an alkylene oxide group of the formula:
- R17(C2H4O)d(C3H6O)e(C4H8O)fR18, where R17 has the formula:
- —C4H8O—(C2H4O)—
- with R18 selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl, the subscripts d, e and f are zero or positive and satisfy the following relationships:
- 2≦d+e+f≦20 with d≧2.
9 more elements
A silicone composition comprising a silicone having the formula:
- M3D2M4
- wherein
- M3=(R10)(R11)(R12)SiO1/2;
- M4=(R13)(R14)(R15) SiO1/2;
- and
- D2=(R16)(Z′) SiO2/2
- where R10, R11, R12R13, R14, R15 and R16 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and an alkyl hydrocarbon group of 4 to 9 carbons containing an aryl substituents of 6 to 20 carbon atoms;
- Z′ is an alkylene oxide group of the formula:
- R17(C2H4O)d(C3H6O)e(C4H8O)fR18, where R17 has the formula:
- —C4H8O—(C2H4O)—
- with R18 selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl, the subscripts d, e and f are zero or positive and satisfy the following relationships:
- 2≦d+e+f≦20 with d≧2 wherein said silicone composition has an enhanced resistance to hydrolysis.
9 more elements
A silicone composition comprising a silicone having the formula:
- M5D3M6
- wherein
- M5=(R19)(R20)(R21)SiO1/2;
- M6=(R22)(R23)(R24) SiO1/2;
- and
- D3=(R25)(Z″) SiO2/2
- where
- R19, R20, R21, R22, R23, and R24 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and and an alkyl hydrocarbon group of 4 to 9 carbons containing an aryl substituents of 6 to 20 carbon atoms, R25 is a linear or branched hydrocarbon radical of 2 to 4 carbons;
- Z″ is an alkylene oxide group of the general formula:
- R26 (C2H4O)g(C3H6O)h(C2H4O)iR27, where R26 is a linear or branched divalent hydrocarbon radical of 2, 3, 5, 6, 7, 8, or 9 carbon atoms;
- R27 is selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl and the subscripts g, h and i are zero or positive and satisfy the following relationships:
- 2≦g+h+i≦20 with g≧2.
9 more elements
A silicone composition comprising a silicone having the formula:
- M5D3M6
- wherein
- M5=(R19)(R20)(R21)SiO1/2;
- M6=(R22)(R23)(R24) SiO1/2;
- and
- D3=(R25)(Z″) SiO2/2
- where
- R19, R20, R21, R22, R23, and R24 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and and an alkyl hydrocarbon group of 4 to 9 carbons containing an aryl substituents of 6 to 20 carbon atoms, R25 is a linear or branched hydrocarbon radical of 2 to 4 carbons;
- Z″ is an alkylene oxide group of the general formula:
- R26 (C2H4O)g(C3H6O)h(C4H8O)iR27, where R26 is a linear or branched divalent hydrocarbon radical of 2, 3, 5, 6, 7, 8, or 9 carbon atoms;
- R27 is selected from the group consisting of H, monovalent hydrocarbon radicals of from 1 to 6 carbon atoms and acetyl and the subscripts g, h and i are zero or positive and satisfy the following relationships:
- 2≦g+h+i≦20 with g≧2 wherein said silicone composition has an enhanced resistance to hydrolysis.
9 more elements
Dependencies are inferred from the claim text.