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1. (WO2019030230) AN AMINE FUNCTIONAL COMPOUND
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Claims

1. An amine functional compound comprising

i. least one segment consisting of at least one ether unit E and at least one ester unit, wherein the ether units and ester units are connected by an ether link or by an ester link, and wherein the sum of the number of ether units and ester units is at least three, and wherein the ether units and ester units are arranged in random order, and

ii. at least one amine group ii. selected from a tertiary amine group, a salt of a tertiary amine group and a quaternary ammonium group,

wherein the at least one segment is covalently linked to a polymerization starter moiety comprising the at least one amine group ii.

2. The amine functional compound according to claim 1 , wherein each segment is defined by the largest portion between two ester links and wherein the sum of the number of ether units and ester units is at least three, and wherein the at least one segment comprises an average number of ether links L between two adjacent ether units and an average number of ether units E, wherein a ratio R is defined according to formula (I) : L / ( E - 1 ) and wherein E is larger than 1.0, and R is smaller than 1.0.

3. The amine functional compound according to claim 2, wherein the ratio R is smaller than 0.9, preferably R is smaller than 0.8, more preferably R is smaller than 0.7.

4. The amine functional compound according to anyone of the preceding claims 2 to 3, wherein the ratio R is substantially equal to 0.5.

5. The amine functional compound according to anyone of the preceding claims 2 to 3, wherein the ratio R is substantially equal to 0.0.

6. The amine functional compound according to any one of the preceding claims, wherein the at least one segment has a molar ratio between the ester units and the ether units in the range 19 : 1 to 1 : 1.

7. The amine functional compound according to anyone of the preceding claims, wherein the polymerization starter moiety is directly linked to said at least one segment via one of the group consisting of an ether group, an ester group, a secondary amide group, a tertiary amide group, a secondary amine group and a tertiary amine group.

8. The amine functional compound according to anyone of the preceding claims, wherein the polymerization starter moiety comprises a polyethylenimine.

9. The amine functional compound according to anyone of the preceding claims, wherein the ether units are selected from the group consisting of the formula (IV) -[CR302]n-O-, wherein n is an integer of 2 or 3, and R30 independently of each other represent organic groups having 1 to 25 carbon atoms or hydrogen.

10. The amine functional compound according to claim 9, wherein, in case n is equal to 2, at least one of the R30 represents an ether group having the formula -R3 -0-R32, wherein R3 and R32 independent of each other represent organic groups having 1 to 30 carbon atoms.

1 1. Use of an amine functional compound according to anyone of the preceding claims as dispersing agent.

12. Use of an amine functional compound according to anyone of the preceding claims 1 - 10 as wetting agent.

13. Composition comprising particles and an amine functional compound according to anyone of the preceding claims 1 - 10.

14. Method for producing an amine functional compound according to any one of the claims 1 - 10, comprising the step of:

preparing a segment by reacting a cyclic ester and a cyclic ether together in a ring-opening polymerization reaction, wherein the ring-opening polymerization reaction is started by a polymerization starter compound, which comprises at least one functional group selected from a hydroxyl group, a primary amine group and a secondary amine group, wherein the polymerization starter compound comprises at least one of an amine group ii, a primary amine group and a secondary amine group.

15. The method according to claim 14, wherein the molar ratio between the cyclic ester and the cyclic ether is in the range 19 : 1 to 1 : 1.

16. The method according to any one of the preceding claims 14 - 15, wherein the

polymerization starter compound comprises a polyethylenimine.

17. The method according to any one of the preceding claims 14 - 16, wherein the cyclic ester and the cyclic ether are added substantially simultaneously into a reaction mixture, which is maintained in reaction conditions.

18. The method according to any one of the preceding claims 14 - 16, wherein the

polymerization starter compound is added to a reaction mixture containing the cyclic ester and the cyclic ether, which reaction mixture is maintained in reaction conditions.

19. The method according to any one of the preceding claims 14 - 18, wherein in step a) the polymerization starter compound is a multifunctional starter for starting at least two ring- opening polymerization reactions per molecule, wherein the at least one functional group comprises at least one of the group consisting of two hydroxyl groups, two secondary amine groups and a primary amine group.