Laminate and conductive roller
Providing a laminate having an excellent adhesiveness between a base layer and a surface layer while having a good flexibility. In order to solve the aforementioned problems, the laminate of the present disclosure comprises at least a base layer, an intermediate layer and a surface layer, wherein a base layer composition contains an urethane resin, an intermediate layer composition contains an energy ray curable resin having (meth)acryloyl group in a molecule thereof, and, a non-UV curable resin having only isocyanate group as reactive functional group, and a surface layer composition contains a UV curable resin having the (meth)acryloyl group in the molecule.
1. A laminate comprises at least a base layer, an intermediate layer formed on the base layer, and a surface layer formed on the intermediate layer, wherein
the base layer is a polymer of a base layer composition containing an urethane resin having a hydroxyl group,
the intermediate layer is a polymer of an intermediate layer composition containing an energy ray curable resin having (meth)acryloyl group in a molecule thereof, and, a non-UV curable resin having only isocyanate group as reactive functional group, and
the surface layer is a polymer of a surface layer composition containing resin component consisting of a UV curable resin having the (meth)acryloyl group in a molecule thereof, and
wherein recesses and protrusions are formed by the isocyanate compound of the non-UV curable resin on the inside of the intermediate layer, and, anchor effect is exerted between the energy ray curable resin of the intermediate layer and the isocyanate compound of the non-UV curable resin.
2. The laminate according to claim 1 , wherein the non-UV curable resin in the intermediate layer composition is a moisture curable resin.
3. The laminate according to claim 2 , wherein the moisture curable resin has aromatics in the molecule.
4. The laminate according to claim 1 , wherein the content of the energy ray curable resin in the intermediate layer composition is 1 to 200 parts by mass per 100 parts by mass of the non-UV curable resin.
5. The laminate according to claim 1 , wherein the energy ray curable resin in the intermediate layer composition is the same as the UV curable resin in the surface layer composition, or, has a part of that is the same as the UV curable resin in the surface layer composition.
6. The laminate according to claim 1 , wherein the energy ray curable resin in the intermediate layer composition has a urethane skeleton in the molecule, and the UV curable resin having (meth)acryloyl group in the surface layer composition is a urethane (meth)acrylate.
7. A conductive roller comprising the laminate according to claim 1 .
8. The laminate according to claim 2 , wherein the content of the energy ray curable resin in the intermediate layer composition is 1 to 200 parts by mass per 100 parts by mass of the non-UV curable resin.
9. The laminate according to claim 2 , wherein the energy ray curable resin in the intermediate layer composition is the same as the UV curable resin in the surface layer composition, or, has a part of that is the same as the UV curable resin in the surface layer composition.
10. The laminate according to claim 2 , wherein the energy ray curable resin in the intermediate layer composition has a urethane skeleton in the molecule, and the UV curable resin having (meth)acryloyl group in the surface layer composition is a urethane (meth)acrylate.
11. A conductive roller comprising the laminate according to claim 2 .
12. The laminate according to claim 3 , wherein the content of the energy ray curable resin in the intermediate layer composition is 1 to 200 parts by mass per 100 parts by mass of the non-UV curable resin.
13. The laminate according to claim 3 , wherein the energy ray curable resin in the intermediate layer composition is the same as the UV curable resin in the surface layer composition, or, has a part of that is the same as the UV curable resin in the surface layer composition.
14. The laminate according to claim 3 , wherein the energy ray curable resin in the intermediate layer composition has a urethane skeleton in the molecule, and the UV curable resin having (meth)acryloyl group in the surface layer composition is a urethane (meth)acrylate.
15. A conductive roller comprising the laminate according to claim 3 .
16. The laminate according to claim 4 , wherein the energy ray curable resin in the intermediate layer composition has a urethane skeleton in the molecule, and the UV curable resin having (meth)acryloyl group in the surface layer composition is a urethane (meth)acrylate.
17. A conductive roller comprising the laminate according to claim 4 .
18. The laminate according to claim 5 , wherein the energy ray curable resin in the intermediate layer composition has a urethane skeleton in the molecule, and the UV curable resin having (meth)acryloyl group in the surface layer composition is a urethane (meth)acrylate.
19. A conductive roller comprising the laminate according to claim 5 .
20. A conductive roller comprising the laminate according to claim 6 .