The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Jan. 08, 2019
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Christopher Gilmore, Natick, MA (US);
Aaron A. Rachford, South Grafton, MA (US);
Hee Jae Yoon, Seoul, KR;
Jaclyn Murphy, Ashland, MA (US);
Peter Trefonas, III, Medway, MA (US);
Deyan Wang, Hudson, MA (US);
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Rohm and Haas Electronic Materials Korea Ltd., Seoul, KR;
Abstract
Acoustic wave sensors comprise: a piezoelectric layer, first and second electrodes arranged with the piezoelectric layer in a piezoelectric transducer circuit; and a polymeric sensing layer for adsorbing a gas-phase analyte, the adsorption of which analyte causes a change in resonant frequency of the piezoelectric transducer circuit, wherein the polymeric sensing layer comprises: (a) a polymer chosen from substituted or unsubstituted: polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising a cyclopentadienone group; polyamides; polypyrazoles; or novolacs; or a cured product thereof; (b) a polymer chosen from substituted or unsubstituted: polyamic acids; or polyamic acid-polyimide copolymers; (c) a polymer formed from one or more monomers comprising a monomer comprising a polar group-substituted arylcyclobutene group, or a cured product thereof; or (d) a polymer comprising polymerized units of a monomer chosen from substituted or unsubstituted: maleimides; or norbomenes; or a cured product thereof. The acoustic wave sensors and methods of using such sensors find particular applicability in the sensing of gas-phase analytes.