USRE48165EActiveUtilityPatentIndex 48
Alkenyl (perfluoroalkyl) phosphinic acids
Est. expiryOct 17, 2034(~8.3 yrs left)· nominal 20-yr term from priority
C22B 3/42C08F 112/14C07F 9/302C07F 9/304C08L 43/02B01J 31/0261B01J 39/04C22B 3/384B01J 20/28047C08F 214/18B01J 41/04C22B 59/00C08F 130/02C08F 261/06C08F 114/18C08F 12/14B01J 20/3085C08F 30/02C08F 230/02B01J 20/3265C07F 9/5316B01J 20/3204B01J 20/103B01J 20/22Y02P10/20B01J 41/13C22B 3/24Y02P10/234C22B 3/0064
48
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Claims
Abstract
The invention relates to alkenyl(perfluoroalkyl)phosphinic acids, to the preparation and intermediates thereof, to the use thereof as monomers for the preparation of oligomers and/or polymers, to the corresponding oligomers/polymers, to the corresponding support materials comprising the oligomers/polymers, and to the use thereof as ion exchangers, as catalysts or extraction medium and corresponding salts thereof.
Claims
exact text as granted — not AI-modifiedThe invention claimed is:
1. A compound of the formula I
where
R f denotes a straight-chain or branched perfluoroalkyl group having 1 to 12 C atoms,
A denotes H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms,
B denotes —(CR 1 R 2 ) n —, [—(CR 1 R 2 ) m —O—(CR 1 R 2 ) m1 —] m2 , arylene or substituted arylene,
X denotes H, F and/or Cl,
n denotes an integer from 0 to 20,
m denotes an integer from 1 to 20,
m 1 denotes an integer from 0 to 8,
m 2 denotes an integer from 1 to 20 and
R 1 or R 2 each, independently of one another, denote H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms.
2. A compound according to claim 1 , wherein R f denotes a straight-chain or branched perfluoroalkyl group having 1 to 8 C atoms.
3. A compound according to claim 1 , wherein A and X are identical.
4. A compound according to claim 1 , wherein B denotes —(CR 1 R 2 ) n —, arylene or substituted arylene.
5. A process for the preparation of a compound of the formula I according to claim 1 , which comprises:
a) hydrolysing a compound of the formula II
(F) x (R f ) 4−x P—B—CX═CX-A II ,
where R f , A, B and X have a meaning indicated in claim 1 and x denotes 2, to give an intermediate compound of the formula IIIa,
where R f , A, B and X have a meaning indicated in formula II, or
b) reacting a compound of the formula II
(F) x (R f ) 4−x P—B—CX═CX-A II ,
where R f , A, B and X have a meaning indicated in claim 1 and x denotes 2 or 3, with a hexaalkyldisiloxane optionally in the presence of a catalytic amount of water,
where the alkyl groups of the hexaalkyldisiloxane each, independently of one another, denote a straight-chain or branched alkyl group having 1 to 4 C atoms, to give an intermediate compound of the formula III,
where R f , A, B and X a have a meaning indicated in formula II; and
then hydrolysing the intermediate compound of formula IIIa or III to obtain a compound of formula I.
6. A compound of the formula IIIa,
where
R f denotes a straight-chain or branched perfluoroalkyl group having 1 to 12 C atoms,
A denotes H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms,
B denotes —(CR 1 R 2 ) n —,[—(CR 1 R 2 ) m —O—(CR 1 R 2m1 —] m2 ,arylene or substituted arylene,
X denotes H, F and/or Cl,
n denotes an integer from 0 to 20,
m denotes an integer from 1 to 20,
m 1 denotes an integer from 0 to 8,
m 2 denotes an integer from 1 to 20 and
R 1 or R 2 each, independently of one another, denote H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms.
7. A method for the preparation of oligomers or polymers which comprises oligomerizing or polymerizing a compound of claim 1 .
8. Oligomer or polymer containing polymerised compounds of the formula I, according to claim 1 , as monomer units.
9. A process for the preparation of oligomers or polymers according to claim 8 , comprising polymerizing a compound of the formula I, optionally together with further monomers and optionally in the presence of a crosslinking agent.
10. Process according to claim 9 , wherein the polymerisation is carried out by means of free radicals.
11. Process according to claim 9 wherein a homo-polymer is prepared.
12. Process according to claim 9 wherein the polymerisation is carried out without crosslinking agents.
13. Process according to claim 9 wherein the polymerisation is carried out in, on or at a support material.
14. Composite material comprising a support material and at least one compound according to claim 1 .
15. An ion exchanger or a Brønsted acid catalyst material comprising a compound of claim 1 or a polymer or oligomer of a compound of claim 1 .
16. A method for the extraction of cations of the rare earths from a solution which comprises contacting the solution with a material comprising a compound of claim 1 or a polymer or oligomer thereof.
17. A salt corresponding to the formula IV,
where the cation Kt + in formula IV denotes an inorganic or organic cation and where
R f denotes a straight-chain or branched perfluoroalkyl group having 1 to 12 C atoms,
A denotes H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms,
B denotes —(CR 1 R 2 ) n —, [—(CR 1 R 2 ) m —O—(CR 1 R 2 ) m1 —] m2 , arylene or substituted arylene,
X denotes H, F and/or Cl,
n denotes an integer from 0 to 20,
m denotes an integer from 1 to 20,
m 1 denotes an integer from 0 to 8,
m 2 denotes an integer from 1 to 20 and
R 1 or R 2 each, independently of one another, denote H, F, Cl or a straight-chain or branched alkyl group having 1 to 12 C atoms.
18. A polymer or oligomer comprising polymerized units of a salt of claim 17 as monomer units.
19. Composite material comprising a support material and at least one polymer or oligomer of claim 8 .
20. Composite material comprising a support material and at least one polymer or oligomer of claim 18.Cited by (0)
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