Patent ID: 8715447

Claim:
A method of making a laminated, polymeric microfluidic structure, comprising: providing a first component having first and second surfaces, wherein at least one of the surfaces includes a microstructure, further wherein the first component is a polymeric material; providing at least a second, polymeric component having first and second surfaces, wherein one of the first and second surface of the first component is intended to be fixedly attached to a respective second and first opposing surface of the second component; applying a weak solvent bonding agent with respect to the polymeric components to at least one of the first and the second component at a first temperature, wherein the weak solvent bonding agent is an organic solvent having little or substantially no bonding effect on the polymeric components at the first temperature without a thermal activation step; adjacently contacting the opposing surfaces of the first polymeric component and the at least the second polymeric component; and thermally activating the weak solvent by raising the first temperature to a second temperature that is greater than the first temperature to actuate the bonding effect of the weak solvent bonding agent.