Patent ID: 9238346
Filing Date: 2016-01-19
CPC Classification: B01L,B29C,B29K,B29L,B32B,C08J,Y10T

Claim Text:
1. A microfluidic device comprising: (a) a first part made of a soft solid thermoplastic elastomer (TPE) composition comprising at least 60 wt. % solids comprising a thermoplastic elastomer resin and 40 wt. % or less liquids, the soft solid TPE composition having a Shore A hardness that is less than 50 and the first part bearing a patterned surface, the pattern comprising at least one microfluidic channel; (b) a second part comprising a first meeting surface, the first meeting surface covering enough of the patterned surface for enclosing at least part of the microfluidic channel and, (c) a sealed contact between the patterned surface and the first meeting surface without an adhesive between the patterned surface and the first meeting surface, wherein a viscoelastic phase of the TPE produces intimate contacting of the patterned surface that results in a reversible bond producing the sealed contact with a first temperature, pressure, and time, where the bond is capable of being made irreversible when a greater temperature, pressure and/or time is applied, wherein the soft solid TPE composition comprises oil free SEBS.