Momentive Performance Materials Gmbh

Antonio Palumbo

Kalman Koczo

Benjamin Falk

Anubhav Saxena

Monjit Phukan

Mark Leatherman

Mayank Dubey

Majyank Kumar Dubey

Mark D Leatherman

The present invention provides for a demulsifying composition comprising a blend of a) an emulsion; and b) a demulsifying-effective amount of a silicon containing co-polymer. The present invention also provides for a method for separating emulsions using the demulsifying composition discussed.

Compositions and methods for separating emulsions using the same

The present invention is related to the preparation and use of moderately cross-linked (chin-extended), reverse (or 'inverted') surfactants, wherein the reverse surfactants comprise a polyether backbone with oligomeric or polymeric silicon-containing substitutions along the backbone. The present invention further describes crosslinked versions of the inverted surfactants, reaction products of alkenyl (allyl, vinyl, methallyl) functional copolymers (polyethers), silicone hydrides and cross-linking agents, which may be optionally reacted with water to react the remaining alkoxy groups. The crosslinking agent contains either SiH or Si-alkoxy groups or both. The compounds of the present invention exhibit only moderate cross-linking in order to be soluble or dispersible in appropriate solvents.

Siloxane polyether copolymers

There is provided herein a demulsifying composition comprising at least one polyorganosiloxane compound having the general formula (I):MMDDTTQ&#x2003;&#x2003;(I)wherein: M=RRRSiO, M=RRRSiO, D=RRSiO, D=RRSiO, T=RSiO, T=RSiO, Q=SiO, where R, R, R, R, R, R, R, Rand Rare each independently chosen from monovalent alkyl, aryl or aralkyl hydrocarbon radicals, or chosen from R; Ris a monovalent polyether radical independently of the general formula (II):&#x2014;(CH)&#x2014;O&#x2014;(CHO)&#x2014;(CHO)&#x2014;(CHO)&#x2014;R&#x2003;&#x2003;(II)Ris a monovalent radical independently chosen from the general formula (III):&#x2014;X&#x2014;O&#x2014;(CHO)&#x2014;(CHO)&#x2014;(CHO)&#x2014;{C(O)CHO}&#x2014;R&#x2003;&#x2003;(III) There is also provided herein a method for separating emulsions comprising combining the components of the demulsification composition into a mixture; allowing the mixture to separate into at least two phases and separating said at least two phases from each other.

Biodegradable polyorganosiloxane demulsifier composition and method for making the same

The present invention provides for a demulsifying composition comprising a blend of a) an emulsion; and b) a demulsifying-effective amount of a non-crosslinked silicon polyether. The present invention also provides for a method for separating emulsions using the demulsifying composition discussed.

Demulsifier compositions and methods for separating emulsions using the same

The present invention provides a non-crosslinked silicon polyether composition comprising at least one compound with the following formula;[(RO)(CHO)(CHO)(CHO)]R(R)wherein Ris a monovalent radical defined asMMMMMDDDTTTQM=RRRSiO; M=RRRSiR; M=[(RRRSi)R]Si(R)(R)RM=RSi(R)(R)O; M=RRRSiO; D=RRSiO; D=RSi(R)O; D=RRSiO; T=RSiO; T=RSiO; T=RSiO; and Q=SiO; Rand Rare polyvalent linear or branched; Ris &#x2014;(CHO)(CHO)(CHO)&#x2014;Ror R; Ris a monovalent saturated; R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, and, Rare monovalent hydrocarbon radicals having from 1 to about 10 carbons; R, R, R, Rand Rare divalent hydrocarbon radicals having 1 to about 25 carbons; Ris &#x2014;R&#x2014;(CHO)(CHO)(CHO)&#x2014;R; Ris a divalent hydrocarbon radical having 1 to about 60 carbons; Ris a monovalent hydrocarbon radical having 1 to about 20 carbons; h is 0 or 1 subject to the limitation if h is 1 then g+i+j+k+l+m+n+o+p+q+r=0; subscript d is 1&#x3c;d+e&#x2266;about 25 limitation that the sum d+e is equal to the valency of Rand 1&#x3c;d; e is zero; subscripts a, b and c are zero or positive; subscripts g, h, i, j, k, l, m, n, o, p, q and r are zero or positive; subscript s is positive; and subscripts t, u, and v are zero or positive.

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Siracusa, Italy

Antonio Palumbo