Polyelectrolyte complexes and a method for production thereof

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C510S434000, C510S477000, C510S488000, C510S504000, C528S327000, C528S361000, C528S363000, C528S370000, C528S392000, C528S403000, C528S422000, C528S423000, C525S408000, C525S410000, C525S413000, C525S418000

Reexamination Certificate

active

06740633

ABSTRACT:

The invention relates to polyelectrolyte complexes of cationic and anionic polymers, and to a process for their preparation.
It has been known for some time that cationic and anionic polymers aggregate due to charge neutralization, forming complexes which exhibit new properties, for example a phase or solubility behavior which is characteristic neither of the basic or cation component nor of the acidic or anionic component. EP-A 0 492 188 discloses, for example, complexes which are prepared by mixing an aqueous solution of, for example, sodium polymethacrylate with an aqueous solution of ammonium compounds, such dodecyltrimethylammonium bromide. The complexes act as sorbents and are used, for example, for removing organic compounds from effluent. The stability and water absorption capacity of complexes is described, for example, in WO-A-96/02276 with respect to the liberation of active compounds and in JP/A-62/112654 with respect to papermaking.
WO-A-98/17762 discloses the use of polycationic condensation products obtainable, for example, by condensation of piperazine, substituted piperazines, imidazole or alkyl-substituted imidazoles with crosslinking agents as color transfer inhibitors and color removal reducing additive for detergents and laundry after-treatment agents. The condensation products may, if desired, also be in quaternized form.
It is an object of the present invention to provide novel substances whose cationic component is affected significantly less by anionic compounds, such as surfactants, on use compared with use of the cationic component of the complex alone. We have found that this object is achieved in accordance with the invention by polyelectrolyte complexes of cationic and anionic polymers if they consist of
(a) cationic condensates of (i) at least one amine selected from the group consisting of linear alkylamines, branched alkylamines, cycloalkylamines, alkoxyamines, amino alcohols, cyclic amines containing at least one nitrogen atom in a ring structure, alkylenediamines, polyetherdiamines, polyalkylenepolyamines, mixtures of one of the said amines with at least one amino acid or a salt thereof, reaction products of the said amines with at least one anionic group containing alkylating agent wherein per mole of NH group of the amines of from 0.04 to 0.6 moles of the anionic group containing alkylating agent is reacted, and mixtures thereof, and (ii) a crosslinking agent from the group consisting of epihalohydrins, bishalohydrins of diols, bishalohydrins of polyalkylene glycols, bishalohydrins of polytetrahydrofurans, alkylene dihalides, alkylene trihalides, bisepoxides, trisepoxides, tetraepoxides and/or mixtures of said compounds, and/or quaternized cationic condensates of (i) and (ii), and
(b) anionic compounds containing at least three anionic groups
and in which the charge ratio between anionic and cationic polymers is from 0.01 to 20.
Specific examples of the said amines are methylamine, ethylamine, n-propylamine, isopropylamine, n-butylamine, isobutylamine, pentylamine, hexylamine, heptylamine, octylamine, 2-ethylhexylamine, isooctylamine, nonylamine, isononylamine, decylamine, undecylamine, dodecyclamine, tridecylamine, stearylamine, palmitylamine,
dimethylamine, diethylamine, dipropylamine, dibutylamine, dipentylamine, dihexylamine, bis-(2-ethyl-hexyl)amine, ditridecylamine, N-methylbutylamine, N-ethylbutylamine, piperidine, morpholine, pyrrolidine,
2-methoxyethylamine, 2-ethoxyethylamine, 3-methoxypropylamine, 3-ethoxypropylamine, 3-[(2-ethylhexyl)oxy]-1-propaneamine, 3-[(2-methoxyethoxy]-1-propaneamione, 2-methoxy-N-(2-methoxyethyl)ethanamine,
2-aminoethanol, 3-amino-1-propanol, 1-amino-2-propanol, 2-(2-aminoethoxy)ethanol, 2-[(2-aminoethyl)amino]ethanol, 2-(methylamino)ethanol, 2-(ethylamino)ethanol, 2-(butylamino)ethanol, diethanolamine, 3-[(2-hydroxyethyl)amino]1-propanol, diisopropanolamine, bis-(2-hydroxyethyl)aminoethylamine, bis-(2-hydroxypropyl)aminoethylamine, bis-(2-hydroxyethyl)aminopropyl-amine, bis-(2-hydroxypropyl)aminopropylamine,
cyclopentylamine, cyclohexylamine, N-methylcyclohexylamine, N-ethylcyclohexylamine, dicyclohexylamine, ethylenediamine, propylenediamine, butylenediamine, neopentyldiamine, hexamethylenediamine, octamethylenediamine, isophoronediamine, 4,4′-methylenebiscyclohexylamine, 4,4′-methylenebis(2-methylcyclohexylamine), 4,7-dioxadecyl-1,10-diamine, 4,9-dioxadodecyl-1,12-diamine, 4,7,10-trioxatridecyl-1,13-diamine, 2-(ethylamino)ethylamine, 3-(methylamino)propylamine, 3-(cyclohexylamino)propylamine, 3-aminopropylamine, 2-(diethylamino)ethylamine, 3-(dimethylamino)propylamine, 3-(diethylamino)propylamine, dipropylenetriamine, tripropylenetetramine, N,N-bis-(aminopropyl)methylamine, N,N-bis-(aminopropyl)ethylamine, N,N-bis-(aminopropyl)hexylamine, N,N-bis-(aminopropyl)octylamine, 1,1-dimethyldipropylenetriamine, N,N-bis-(3-dimethylaminopropyl)amine, N,N″-1,2-ethanediylbis-(1,3-propanediamine), diethylenetriamine, bis-(aminoethyl)ethylenediamine, bis-(aminopropyl)ethylenediamine, bis-(hexamethylene)triamine, N-(aminoethyl)hexamethylenediamine, N-(aminopropyl)hexamethylenediamine, N-(aminopropyl)ethylenediamine, N-(aminoethyl)butylenediamine, N-(aminopropyl)butylenediamine, bis-(aminoethyl)hexamethylenediamine, bis-(aminopropyl)hexamethylenediamine, bis-(aminoethyl)butylenediamine, bis-(aminopropyl)butylenediamine, 4-aminomethyloctane-1,8-diamine, and N,N-diethyl-1,4-pentanediamine.
Cyclic amines containing at least one nitrogen atom in a ring structure are for example monoaminoalkylpiperazines, bis(aminoalkyl)piperazines, monoaminoalkylimidazoles, aminoalkylmorpholines, aminoalkylpiperidines and aminoalkylpyrrolidines. The monoaminoalkylpiperazines are for example 1-(2-aminoethyl)piperazine and 1-(3-aminopropyl)piperazine. Preferred monoaminoalkylimidazoles have 2 to 8 carbons atoms in the alkyl group. Examples of suitable compounds are 1-(2-aminoethyl)imidazole and 1-(3-aminopropyl)imidazole that. Suitable bis(aminoalkyl)piperazines are for example 1,4-bis(-2-aminoethyl)piperazine and 1,4-bis(3-aminopropyl)-piperazine. Preferred aminoalkylmorpholines are aminoethylmorpholine and 4-(3-aminopropyl)-morpholine. Other preferred compounds of this group are aminoethylpiperidine, aminopropylpiperidine and aminopropylpyrrolidine.
Cyclic amines with at least two reactive nitrogen atoms in the ring are for example imidazole, C-alkyl substituted imidazoles having 1 to 25 carbon atoms in the alkyl group such as 2-methylimidazole, 2-ethylimidazole, 2-propylimidazole, 2-isopropylimidazole and 2-isobutylimidazole, imidazoline, C-alkyl substituted imidazolines having 1 to 25 carbon atoms in the alkyl group and arylimidazolines such as 2-phenylimidazoline and 2-tolylimidazoline, piperazine, N-alkylpiperazines having 1 to 25 carbon atoms in the alkyl group such as 1-ethylpiperazine, 1-(2-hydroxy-1-ethyl)piperazine, 1-(2-hydroxy-1-propyl)piperazine, 1-(2-hydroxy-1-butyl)piperazine, 1-(2-hydroxy-1-pentyl)piperazine, 1-(2,3-dihydroxy-1-propyl)piperazine, 1-(2-hydroxy-3-phenoxyethyl)piperazine, 1-(2-hydroxy-2-phenyl-1-ethyl)piperazine,
N,N′-dialkylpiperazines having 1 to 25 carbon atoms in the alkyl group for example 1,4-dimethylpiperazine, 1,4-diethylpiperazine, 1,4-dipropylpiperazine, 1,4-dibenzylpiperazine, 1,4-bis(2-hydroxy-1-ethyl)piperazine, 1,4-bis(2-hydroxy-1-propyl)piperazine, 1,4-bis(2-hydroxy-1-butyl)piperazine, 1,4-bis(2-hydroxy-1-pentyl)piperazine, and 1,4-bis(2-hydroxy-2-phenyl-1-ethyl)piperazine. Other cyclic amines with at least two reactive nitrogen atoms are melamine and benzimidazoles such as 2-hydroxybenzimidazole and 2-aminobenzimidazole.
Preferred cyclic amines with at least two reactive nitrogen atoms are imidazole, 2-methylimidazole, 4-methylimidazole and piperazine.
In a preferred embodiment of the invention the amine is selected from the group consisting of (i) at least one cyclic amine containing at least two reactive nitrogen atoms and (ii) mixtures of at least one cyclic amine containing containing at least two reactive nitrogen atoms with

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Polyelectrolyte complexes and a method for production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyelectrolyte complexes and a method for production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyelectrolyte complexes and a method for production thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3195486

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.