Patent ID: 9707717
Date: 2017-07-18
CPC Classifications: B29C,B29K,B33Y

Claim:
1. A method of preparing a three-dimensional structure, the method comprising: i. extruding a first bead of a first thixotropic thermoset material onto a support, wherein the first thixotropic thermoset material comprises a first thermoset resin and a first rheology control agent, ii. subjecting the first bead to curing conditions such that the thixotropic thermoset material is at least partially cured to form a cured first polymer layer, iii. extruding a second bead of a second thixotropic thermoset material in contact with the cured first polymer layer, wherein the second thixotropic thermoset material comprises a second thermoset resin and a second rheology control agent, and iv. subjecting the second bead of thixotropic thermoset material to curing conditions, wherein the second bead of thixotropic thermoset material is at least partially cured to form a cured second polymer layer, and wherein the there-dimensional structure is prepared, v. wherein the first and/or second thixotropic material has a thixotropic index that is greater than 5.