Nitrogen-containing water-soluble compounds

Claim 2

Water-soluble crosslinkable compounds which are obtainable by a reaction of reaction products, containing halogenohydrin groups, of polyamines and an epihalogenohydrin or 1,3-dihalogeno-2-hydroxy-propane with inorganic bases and a subsequent reaction of the resulting compounds, which contain epoxy groups, with halogen-free mineral acids, mono- or polycarboxylic acids or derivatives thereof.

Claim 3

Water-soluble polycondensates according to claim 1, which are obtainable by reaction of (A) a water-soluble aliphatic polyamine with primary, secondary and if appropriate tertiary amino, carboxamide or hydroxyl groups, (B) with an epihalogenohydrin or 1,3-dihalogeno-2-hydroxy-propane, and if appropriate simultaneous or subsequent addition of a polyamine such as in (A), in a molar ratio of 1.0 to 3.6 mol of component (B) per mol of basic nitrogen of component (A), (C) reaction of the products A/B with an inorganic base in a molar ratio of 0.1 to 1.75 mol of base per mol of halogenohydrin group in A/B, (D) reaction of the basic products (C) with a halogen-free acid or acid derivative thereof up to a pH value of 6.

Claim 4

Water-soluable polycondensates according to claim 1, which are obtainable by reaction of A. (1.) a water-soluble amine of the formula ##STR3## wherein R 4 , R 7 and R 9 represent hydrogen or a C 1 -C 5 -alkyl radical which is unsubstituted or substituted by hydroxyl or amino, R 5 , R 6 and R 8 independently of one another represent hydrogen, methyl or ethyl, a, b, c and f independently of one another represent an integer from 0 to 4 and d and e independently of one another represent an integer from 1 to 6, and/or (2.) a water soluble polyamidoamine with a molecular weight of at least 800, prepared from (α) aliphatic polyamines which contain at least two amino groups capable of amide formation and at least one other secondary or tertiary amino group, or of mixtures of these polyamines with aliphatic diamines of the formula (II), ammonia or ethyleneimine, and (β) aliphatic or aromatic dicarboxylic acids with 2 to 12 C atoms or functional derivatives thereof, and/or (γ) aminocarboxylic acids containing 3 to 6 C atoms or lactams thereof, or (3) a polyalkyleneimine prepared by polymerization of 1,2-alkyleneimines, with B. An epihalogenohydrin or 1,3-dihalogeno-2-hydroxy-propane and if appropriate simultaneous or subsequent addition of a polyamine of the formulae (I) or (II) in a molar ratio of 1.0 to 3.6 mol, of component B per mol of basic nitrogen of component A, and C. reaction of the products A/B with an inorganic base in a molar ratio of 0.1 to 1.75 mol, of base per mol of halogenohydrin group in A/B and D. reaction of the basic products C with a halogen-free mineral acid, mono- or polycarboxylic acid or an acid derivative thereof up to a pH of 6.

Claim 5

Water-soluble crosslinkable compounds according to claim 1, dissolved in water to form 5 to 35 weight% solids in aqueous solutions having a viscosity of 15 to 400 mPas at 25° C.

Claim 6

Water-soluble crosslinkable compounds according to claim 1, wherein the inorganic base is selected from the group consisting of NaOH, KOH, LiOH, CsOH, Ca(OH) 2 , CaCO 3 , Na 3 PO 4 and mixtures thereof.

Claim 7

Water-soluble crosslinkable compounds according to, claim 1 wherein the halogen-free acid or deriviative thereof is selected from the group consisting of amidosulphonic acid, sulphurous acid, silicic acid, boric acid, nitric acid, carbonic acid, sulphuric acid, phosphoric acid, acetic acid, acetic anhydride, propionic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, lactic acid, tartaric acid, formic acid, malic acid, citric acid and mixtures thereof.

Claim 8

Water-soluble polycondensates according to claim 1, with a molecular weight of 1,000-50,000.

Claim 9

Process for the preparation of water-soluble crosslinkable compounds, comprising reacting reaction products, containing halogenohydrin groups, of polyamines and epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane with inorganic bases and then reacting the resulting compounds containing epoxy groups with halogen-free acids or derivatives thereof.

Claim 10

Process for the preparation of water-soluble crosslinkable compounds, comprising reacting reaction products, containing halogenohydrin groups, of polyamines and epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane with inorganic bases and then reacting the resulting compounds containing epoxy groups with halogen-free acids or derivatives thereof.

Claim 11

Process for the treatment of paper, comprising contacting paper with water-soluble crosslinkable compounds of claim 1.

Claim 12

A water-soluble polycondensate according to claim 3, wherein the pH is 2 to 5.5.

Claim 13

A water-soluble polycondensate according to claim 1, wherein the molar ratio of inorganic base to halogenohydrin in A/B is 0.2 to 1.5.

Claim 14

A water-soluble polycondensate according to claim 3, wherein the functional derivatives of the aliphatic or aromatic dicarboxylic acids with 2 to 12 C atoms are selected from the group consisting of anydrides, esters and half-esters.

Claim 15

A water-soluble polycondensate according to claim 3, wherein the molar ratio in step B is 1.1 to 2.5.