Dispersing and emulsifying resins comprising polyether

1. A dispersing resin for solids which is obtained through the partial or complete reaction of hydroxyl groups of carbonyl-hydrogenated ketone-aldehyde resins with one or more oxiranes and, if desired, subsequent complete or partial esterification with organic and/or inorganic acids, wherein during the preparation process one or more oxirane compounds of general formula (I)

are used in which

R is an aliphatic, cycloaliphatic, aromatic or araliphatic hydrocarbon radical or hydrogen, and

R a and R b are alike or different and are hydrogen or alkyl radicals which may also, together with the two oxirane carbon atoms, form a 5- to 8-membered ring, and

e is=0 or 1.

2. The dispersing resin as claimed in claim 1 , wherein R is an alkyl radical having 1 to 10 C atoms.

3. The dispersing resin as claimed in claim 1 , wherein R a and R b are alkyl radicals which, together with the two oxirane carbon atoms, form a 6-membered ring.

4. A dispersion of solids in a liquid medium, comprising at least one dispersing resin which is obtained through the partial or complete reaction of hydroxyl groups of carbonyl-hydrogenated ketone-aldehyde resins with one or more oxiranes and, if desired, subsequent complete or partial esterification with organic and/or inorganic acids, wherein during the preparation process one or more oxirane compounds of general formula (I)

are used in which

R is an aliphatic, cycloaliphatic, aromatic or araliphatic hydrocarbon radical or hydrogen, and

R a and R b are alike or different and are hydrogen or alkyl radicals which may also, together with the two oxirane carbon atoms, form a 5- to 8-membered ring, and

e is=0 or 1.

5. A dispersing resin of general formula (II)

K—(OX) w   (II)

in which

K is a carbonyl-hydrogenated ketone-formaldehyde resin and

X is a hydrogen atom or

the radical Y=[(C l H 2l O) a —(C m H 2m —O) b —(C n H 2n O) c —(SO) d —Z],

a, b and c independently of one another are values from 0 to 100, with the proviso that the sum of a+b+c is >0,

d=0 to 10,

l, m and n independently of one another are ≧2 to 14,

w=2 to 15,

SO=styrene oxide, and

Z is hydrogen and/or a radical selected from the group consisting of sulfonic acids, sulfuric acids, phosphonic acids, phosphoric acids, carboxylic acids, isocyanates, and epoxides,

with the proviso that the radical Y is present at least once in the molecule.

6. The dispersing resin as claimed in claim 5 , wherein a, b and c independently of one another adopt the values 5 to 35.

7. The dispersing resin as claimed in claim 5 , wherein d is <5.

8. The dispersing resin as claimed in claim 5 , wherein d is 0.

9. The dispersing resin as claimed in claim 5 , wherein l, m and n independently of one another are 2 to 4.

10. The dispersing resin as claimed in claim 5 , wherein w is 3 to 12.

11. The dispersing resin as claimed in claim 5 , wherein Z is selected from the group consisting of phosphoric acid and (meth)acrylic acid.

12. The dispersing resin as claimed in claim 5 , wherein Z is the radical of monoesterified or diesterified phosphoric acid.