Polyisobutene phosphonic acid and the derivatives thereof
AssigneeBASF SE
InventorsArno Lange, Darijo Mijolovic, Ulrich Karl, Georg Doring, Helmut Witteler, Ralf Norenberg
Life of this patent
Estimating the term…
Abstract
The present invention relates to polyisobutenephosphonic acids and their derivatives, to a process for preparing them and to their use.
Claims15
A process for preparing a polyisobutenephosphonic acid, comprising a phosphonic acid radical of the general formula I
- wherein
- R1 and R2 are each independently halogen, OR3, SR3 or NR3R4;
- R3 and R4 are each independently H, C1-C20-alkyl or C2-C4000-alkyl which is interrupted by at least one moiety which is selected from the group consisting of O and NR11, and R3 and R4 together with the nitrogen atom to which they are bonded may also form a ring, and R3 and R4 are also aryl, aralkyl or cycloalkyl;
- and
- R11 is as defined for R3 and R4,
- and salts thereof, comprising
- a) reacting a polyisobutene with a phosphorus pentahalide and either
- b1) reacting the reaction product obtained in step a) with a halogen scavenger and
- c1) optionally reacting the reaction product obtained in step b1) with water, at least one alcohol, at least one thiol and/or at least one amine, or
- b2) reacting the reaction product obtained in step a) with water, at least one alcohol, at least one thiol and/or at least one amine.
A polyisobutenephosphonic acid-containing composition, obtained by
- a) reacting a reactive polyisobutene with a phosphorus pentahalide and either
- b1) reacting the reaction product obtained in step a) with a halogen scavenger and
- c1) optionally reacting the reaction product obtained in step b1) with water, at least one alcohol and/or at least one amine, or
- b2) reacting the reaction product obtained in step a) with water, at least one alcohol and/or at least one amine.
A composition comprising a sulfur content of at most 1,000 ppm, comprising a polyisobutenephosphonic acid, comprising a phosphonic acid radical of the general formula I
- wherein
- R1 and R2 are each independently halogen, OR3 or NR3R4;
- R3 and R4 are each independently H, C1-C20-alkyl or C2-C4000-alkyl which is interrupted by at least one moiety which is selected from the group consisting of O and NR11, and R3 and R4 together with the nitrogen atom to which they are bonded may also form a ring, and R3 and R4 are also aryl, aralkyl or cycloalkyl;
- and
- R11 is as defined for R3 and R4,
- wherein the phosphonic acid radical of the general formula I is bonded to a carbon atom of a polyisobutene group which is part of a carbon-carbon double bond,
- or salts thereof,
- and at least one inert solid support material or liquid carrier material.
A composition comprising a sulfur content of at most 1,000 ppm, comprising a polyisobutenephosphonic acid, comprising a phosphonic acid radical of the general formula I
- wherein
- R1 and R2 are each independently halogen, OH, NH2, OR3, wherein R3 is C1-C20-alkyl, NR3R4, wherein R3 is H or C1-C20-alkyl and R4 is C1-C20-alkyl, or a radic of the formula V.a or V.b
- —O(CH2)2—Ol—(CH2)2—OR12 (V.a)
- —NH(CH2)2—NHl—(CH2)2—NR12R13 (V.b)
- wherein
- R12 and R13 are each independently H or C1-C6-alkyl;
- and
- l is a number of from 1 to 1,000,
- or salts thereof,
- and at least one inert solid support material or liquid carrier material.
(canceled)
Dependencies are inferred from the claim text.