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US 9,115,062 B2Granted
Fluorosurfactants
AssigneeMerck Patent GmbH
InventorsWolfgang Hierse, Eckhard Claus, Jan Krause, Melanie Kleineidam, Steffen Schellenberger, Andreas Bathe
Life of this patent
Estimating the term…
Abstract
The present invention relates to novel compounds containing fluorinated end groups, to the use thereof as surface-active substances, and to processes for the preparation of these compounds.
Claims26
A compound of the formula (I)
- where either:
- (A) the groups Zi (Z1, Z2 and Z3) are, independently of one another, branched or unbranched alkyl groups or groups of the structure Ri(A(CR1R2)ci(CR3R4)c′i)di—, where the respective indices ci and c′i are, independently of one another, 0-10 and di=1-5, where Ri is a branched or unbranched, fluorine-containing alkyl radical, R1 to R4 are, independently of one another, hydrogen or a branched or unbranched alkyl group, ci and c′i are not simultaneously 0, and A=O, S and/or N,
- Y1 is an anionic polar group and Y2 is a hydrogen atom, or Y1 is a hydrogen atom and Y2 is an anionic polar group,
- X is a cation,
- and at least one of the groups Zi is a group of the structure Ri(A(CR1R2)ci—(CR3R4)c′i)di—;
- or
- (B) the groups Zi (Z1, Z2 and Z3) are, independently of one another, branched or unbranched alkyl groups or groups of the structure Ri(A(CR1R2)ci(CR3R4)c′i)di—, where the respective indices ci and c′i are, independently of one another, 0-10 and di=0-5, where Ri is a branched or unbranched, fluorine-containing alkyl radical, R1 to R4 are, independently of one another, hydrogen or a branched or unbranched alkyl group, ci and c′i are not simultaneously 0, and A=O, S and/or N,
- Y1 is an anionic polar group and Y2 is a hydrogen atom, provided that, when Y1 is the anionic polar group sulfonate, —SO3−, Z1, Z2 and Z3 are not simultaneously —CH2(CF2)3CF2H, —CH2(CF2)2CF3, or —CH2CF2CHFCF3,
- X is a cation
- and at least one of the groups Zi is a group of the structure Ri(A(CR1R2)ci—(CR3R4)c′i)di—.
7 more elements
A compound of the formula (Ia) or (Ib):
- where Z1=Z2=Z3 and all Z, are selected from Ri(O(CH2)ci)di—, where ci=2, di=1-3, and Ri=CF3CF2CH2— or CF3CF2CF2CH2—.
A compound of the formula (III)
- where
- the groups Zi (Z1, Z2 and Z3) are, independently of one another, branched or unbranched alkyl groups or groups of the structure Ri(A(CR1R2)ci(CR3R4)c′i)di—, where the respective indices ci and c′i are, independently of one another, 0-10 and di=0-5, where Ri is a branched or unbranched, fluorine-containing alkyl radical, R1 to R4 are, independently of one another, hydrogen or a branched or unbranched alkyl group, and A=O, S and/or N, and at least one of the groups Zi is a group of the structure Ri(A(CR1R2)ci(CR3R4)c′i)di—, where ci and c′i are not simultaneously 0.
Dependencies are inferred from the claim text.