Patent ID: 8198337

Claim:
A demulsifying composition comprising a blend of a. an emulsion; and b. a demulsifying-effective amount of a non-crosslinked silicon polyether, wherein (b) is a non-crosslinked silicon polyether having the following formula; [(R 1 O)(C 2 H 4 O) a (C 3 H 6 O) b (C 4 H 8 O) c ] d R 2 (R 3 ) e (OR 1 ) f wherein R 1 is a monovalent radical defined as M g M A h M B i M H j M E k D l D H m D E n T o T H p T E q Q r wherein M=R 4 R 5 R 6 SiO 1/2 ; M A =R 7 R 8 R 9 SiR 10 ; M B =[(R 11 R 12 R 13 Si) s R 14 ] t Si(R 15 ) u (R 16 ) v R 17 M H =R 18 Si(R 19 )(R 20 )O 1/2 ; M E =R 21 R 22 R E SiO 1/2 ; D=R 23 R 24 SiO 2/2 ; D H =R 25 Si(R 26 )O 2/2 ; D E =R 27 R E SiO 2/2 ; T=R 28 SiO 3/2 ; T H =R 29 SiO 3/2 ; T E =R E SiO 2/2 ; and Q=SiO 4/2 ; where R 2 and R 14 are polyvalent linear or branched unsaturated or saturated hydrocarbon radicals optionally containing heteroatoms and hydroxyl groups subject to the limitation that the valency of R 2 and R 14 is at least two and said R 2 and R 14 each contain less than about 25 carbon atoms; R 3 is —(C 2 H 4 O) aa (C 3 H 6 O) bb (C 4 H 8 O) cc —R 30 or R 1 ; R 30 is a monovalent saturated or unsaturated hydrocarbon radical having from 1 to about 20 carbon atoms; R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 11 , R 12 , R 13 , R 15 , R 16 , R 19 , R 20 , R 21 , R 22 , R 23 , R 24 , R 26 , R 27 , and, R 28 are each independently selected from the group of monovalent hydrocarbon radicals having from 1 to about 10 carbon atoms; R 31 is a monovalent hydrocarbon radical that optionally contains heteroatoms having 1 to about 10 carbon atoms; R 10 , R 17 , R 18 , R 25 and R 29 are each independently selected from the group of divalent hydrocarbon radicals having 1 to about 25 carbon atoms; R E is —R 32 —(C 2 H 4 O) a (C 3 H 6 O) b (C 4 H 8 O) c —R 33 ; R 32 is a divalent hydrocarbon radical having from 1 to about 60 carbon atoms; R 33 is a monovalent saturated or unsaturated hydrocarbon radical having from 1 to about 20 carbon atoms; subscript h is 0 or 1 subject to the limitation if h is 1 then g+i+i+k+l+m+n+o+p+q+r=0; subscript d is positive subject to the limitation 1<d+e+f≦about 25 subject to the limitation that the sum d+e+f is equal to the valency of R 2 and 1<d+f; subscripts e and f are zero or less than or equal to 24; subscripts a, b and c are zero or positive subject to the limitation 0<a+b+c≦about 300; subscripts aa, bb and cc are zero or positive subject to the limitation 0<aa+bb+cc≦about 300; subscripts a, h, i, j, k, l, m, n, o, p, q and r are zero to about 300; subscript s is positive subject to the limitation 0<s<25 and s is equal to the valency of R 14 minus 1; subscripts t, u, and v are zero or positive subject to the limitations 1≦t and t+u+v is equal to about 3; and at least one of the subscripts i, j, m or p are positive or h is one.