Patent · US Active

Superhydrophobic poly(dimethylsiloxane) and methods for making the same

US8614003B2 · kind B2 · utility

8Cited by

3References

20Claims

0Family size

Assignee

Peking University · CN

Inventors

Hongwei Ma · Beijing, CN
Tongcheng Qian · Madison, US
Yuanzi Wu · Beijing, CN

Key dates

Filing date	Jan 11, 2013
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Jan 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31667
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A hydrophobic coating having a contact angle of at least about 150 degrees is disclosed herein, which coating comprises: a polymer substrate comprising a first linker incorporated therein at a specified surface density of from about 3×10−4 to about 9×10−8 units per nm2; a first polymer layer in contact with said first linker; a second linker in contact with said first polymer layer; and a second polymer layer in contact with said second linker. Also disclosed herein are methods for producing the hydrophobic coating. This hydrophobic coating is useful for making microfluidic devices having a hydrophobic coating on the microfluidic channels, as well as other uses in the field of microfluidics.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.