Radiation curable compositions useful in image projection systems

1. A radiation curable composition useful for the production of three dimensional solid articles by visible light image projections systems comprising:

A) at least one urethane poly(meth) acrylate compound;

B) at least one poly(meth)acrylate compound;

C) at least one polyester poly(meth)acrylate compound wherein the polyester poly(meth)acrylate compound(s) is a mixture of at least one amine-modified polyester poly(meth)acrylate compound and at least one polyester polyacrylate compound;

D) at least one silicone poly(meth)acrylate compound;

E) at least one visible light range free radical photopolymerization initiator; and

F) at least one UV light range free radical polymerization initiator.

2. The composition of claim 1 wherein the urethane poly(meth)acrylate compound(s) is urethane di(meth)acrylate compound.

3. The composition of claim 1 wherein the urethane poly(meth)acrylate compound(s) is urethane diacrylate oligomer.

4. The composition of claim 1 wherein the urethane poly(meth)acrylate compound(s) is present in an amount from about 10% to about 30% by weight, based on the total amount of the composition.

5. The composition of claim 1 wherein the poly(meth)acrylate compound(s) is diacrylate monomer.

6. The composition of claim 1 wherein the poly(meth)acrylate compound(s) is tricyclodecane dimethanol diacrylate monomer.

7. The composition of claim 1 wherein the poly(meth)acrylate by weight is compound(s) present in an amount from about 20% to about 40% by weight, based on the weight of the total composition.

8. The composition of claim 1 wherein the polyester poly(meth)acrylate compound(s) is one or more polyester polyacrylates.

9. The composition of claim 1 wherein polyester poly(meth)acrylate compound(s) is present in amount from about 20% to about 50%, based on the weight of total composition.

10. The composition of claim 1 wherein the amine-modified polyester polyacrylate compound(s) is present in an amount from about 5% to about 20% by weight, based on the weight of total composition and the polyester polyacrylate compound(s) is present in an amount from about 15% to about 35% by weight, based on the total weight of the composition.

11. The composition of claim 1 wherein the silicone poly(meth)acrylate compound(s) is a silicone polyacrylate.

12. The composition of claim 1 wherein the silicone poly(meth)acrylate compound(s) is present in an amount from about 0.1% to about 3%, by weight, based on the weight of total composition.

13. The composition of claim 1 wherein the visible light range free radical polymerization initiator(s) is bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide.

14. The composition of claim 1 wherein the visible light range free radical polymerization initiator(s) is present in an amount from about 0.5% to about 7% by weight, based on the weight of the total composition.

15. The composition of claim 1 wherein the UV light range polymerization initiator(s) is 1-hydroxycyclohexyl phenyl ketone.

16. The composition of claim 1 wherein the UV light range polymerization indicator(s) is present in an amount from about 0.5% to about 7% by weight, based on the weight of total composition.

17. The composition of claim 1 wherein the composition additionally contains at least one colorant.

18. The composition of claim 17 wherein the colorant(s) is at least one pigment.

19. A radiation curable composition useful for to production of three-dimensional solid articles by visible light projection systems, said composition comprising:

(A) about 10% to about 30% by weight of at least one urethane poly(meth)acrylate compound;

(B) about 20% to about 40% by weight of at least one diacrylate monomer;

(C1) about 5% to about 20% by weight of at least one amine-modified polyester polyacrylate compound;

(C2) about 15% to about 35% by weight of at least one polyester polyacrylate compound;

(D) about 0.1% to about 3% by weight of at least one silicone polyacrylate compound;

(E) about 0.5% to about 7% by weight of at least one visible light range free radical polymerization initiator; and

(F) about 0.5% to about 7% by weight of at least one UV light range free radical polymerization initiator; wherein all of the weight percentages are based on total weight of the composition.

20. The composition of claim 19 wherein the composition additionally contains about 0.005% to about 1% by weight of at least one pigment; said weight percentage based on total weight of the composition.

21. A radiation curable composition useful for the production of three-dimensional solid articles by visible light projection systems, said compositions comprising:

(A) about 10% to about 30% by weight of at least one urethane poly(meth) acrylate compound;

(B) about 20% to about 40% by weight of at least one diacrylate monomer;

(C) about 20% to about 50% of at least one polyester poly(meth) acrylate compound(s); wherein said polyester poly(meth) acrylate compound(s) is a mixture of at least one amine-modified polyester poly(meth) acrylate compound and at least one polyester polyacrylate compound;

(D) about 01% to about 3% by weight of at least one silicone polyacrylate;

(E) about 0.5% to about 7% by weight of at least one visible light range free radical polymerization initiator; and

(F) about 0.5% to about 7% by weight of at least one UV light range free radical polymerization initiator; wherein all of the weight percentages are based on total weight of the composition.