N-alkyl aziridine block copolymers and the uses thereof

1. An N-alkylaziridine block copolymer of a formula (I):

wherein

R1 denotes a R1 radical selected from the group consisting of H, C 1 -C 12 -alkyl, C 2 -C 12 -alkenyl, C 2 -C 12 -alkynyl, C 7 -C 15 -alkaryl, C 7 -C 15 -aralkyl, and C 3 -C 12 -cycloalkyl, said R1 radical may be partly or completely substituted by Cl, F, or a mixture of Cl and F and said R1 radical may contain 0 to 5 hetero atoms selected from the group consisting of O, N and S;

R2 denotes a R2 radical selected from the group consisting of R1 and R4;

R3 denotes SiR1 3 or SiR1 2 R4;

R4 is a representative of the general formula (II):

wherein

A=(N+1)-valent saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon radical comprising 1 to 18 carbon atoms and which may contain 0 to 5 hetero atoms selected from the group consisting of O, N and S;

B=a representative selected from the group consisting of O, S, and NR1;

D=a representative selected from the group consisting of C(O)O, C(O)NR1, C(O), C(S)NR1 and CH 2 ;

E=a divalent saturated or unsaturated, linear, branched, or cyclic hydrocarbon radical which comprises 0 to 18 carbon atoms and which may contain 0 to 5 hetero atoms selected from the group consisting of O, N and S;

Q=an α, ω-polyether chain of the general formula (III):

—[O—C g H 2g ] h —  (3)

wherein

g denotes 2 to 20;

h denotes 1 to 1,000;

a denotes 0 or 1;

f denotes and integer from 2 to 1,000;

n denotes an integer from 1 to 10;

x, y and z each represent either 0 or integers whose sum is between 1 and 10,000 and

if x is greater than 0, y or z is less than or equal to x.

2. A N-alkylaziridine block copolymer according to claim 1 , wherein the N-alkylaziridine block copolymer contains at least two and up to 10 N-alkylaziridino groups per molecule.

3. A curable material based on N-alkylaziridine block copolymers according to claim 1 , wherein, after mixing the components and based on 100 parts by mass, the curable material comprises:

30 to 97 parts by mass of at least one N-alkylaziridine block copolymer having a molar mass in the range from 500 to 50,000 g/mol and an aziridino equivalent mass in the range from 250 to 25,000 g/equivalent;

1 to 10 parts by mass of initiator substances for curing the N-alkylaziridine block copolymers;

1 to 35 parts by mass of organic dilutents; and

1 to 50 parts by mass of modifiers.

4. A curable material based on N-alkylaziridine block copolymers according to claim 2 , wherein, after mixing the components and based on 100 parts by mass, the curable material comprises:

30 to 97 parts by mass of at least one N-alkylaziridine block copolymer having a molar mass in the range from 500 to 50,000 g/mol and an aziridino equivalent mass in the range from 250 to 25,000 g/equivalent;

1 to 10 parts by mass of initiator substances for curing the N-alkylaziridine block copolymers;

1 to 35 parts by mass of organic diluents; and

1 to 50 parts by mass of modifiers.

5. A two-component dental material containing N-alkylaziridine block copolymers according to claim 1 , comprising:

a base component; and

a catalyst component,

wherein a preparation produced by homogeneous mixing of the catalyst component and the base component has a processing time of between 0.5 and 10 minutes at room temperature, and

the preparation cures in a temperature range from 23 to 36° C. within a time span of one to 20 minutes to an elastically deformable material having a Shore A hardness of at least 20.

6. A two-component dental material containing N-alkylaziridine block copolymers according to claim 2 , comprising:

a base component; and

a catalyst component,

wherein a preparation produced by homogeneous mixing of the catalyst component and the base component has a processing time of between 0.5 and 10 minutes at room temperature, and

the preparation cures in a temperature range from 23 to 36° C. within a time span of one to 20 minutes to an elastically deformable material having a Shore A hardness of at least 20.

7. A method of using an N-alkylaziridine block copolymer according to claim 1 , comprising preparing curable materials.

8. A method of using an N-alkylaziridine block copolymer according to claim 2 , comprising preparing curable materials.

9. A method of using an N-alkylaziridine block copolymer according to claim 1 , comprising preparing dental materials.

10. A method of using an N-alkylazirdine block copolymer according to claim 2 , comprising preparing dental materials.

11. A method of using a curable material according to claim 3 , comprising adhesive bonding, coating, or casting substrates in the dental sector.

12. A method of using a curable material according to claim 11 , wherein the use is for dental impression materials, bite-recording materials, modeling materials, temporary sealing materials, materials for the production of temporary crowns and bridges, or duplication materials.

13. A method of using a two-component dental material according to claim 5 , comprising adhesive bonding, coating, or casting substrates in the dental sector.

14. A method of using a two-component dental material according to claim 13 , wherein the use is for dental impression materials, bite-recording materials, modeling materials, temporary sealing materials, materials for the production of temporary crowns and bridges, or duplication materials.

15. A container comprising at least one material according to claim 3 .

16. A container comprising at least one material according to claim 4 .

17. A container comprising at least one material according to claim 5 .

18. A container comprising at least one material according to claim 6 .