Stretchable solid-state electroactive polymer actuators

US12195606B2 · kind B2 · utility

Assignee

• BIOASTRA TECHNOLOGIES, INC. · CA

Inventors

• Sumitra Rajagopalan · Montréal, CA
• Prajwal Kumar · Montréal, CA
• Oscar Suarez · Saint-Laurent, CA
• Sajjad Saeidlou · Montréal, CA
• Maksym KRYUCHKOV · Rue du Bois des Loges, CA
• Mathieu Ramananarivo · Montréal, CA
• Alexey Tokarev · Montréal, CA
• Nicolas COTTENYE · Montréal, CA
• Julien Plathier · Montréal, CA

Key dates

• Filing date: Jun 4, 2019
• Grant date: Jan 14, 2025
• Expiry date: Aug 5, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/035
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

There are provided stretchable solid-state electroactive polymer actuators (SSEPA) using electroactive polymers that convert between electrical energy and mechanical energy and having solid-state polymer electrolytes. More particularly, there are provided electroactive polymer (EAP) compositions comprising: 15-60 wt. % of a film-forming polymer; 5-40 wt. % of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and 10-40 wt. % of a plasticizer, solid-state polymer electrolyte (SPE) compositions comprising: 20-60 wt. % of a plasticizer, 10-60 wt. % of a film-forming polymer and 5-25 wt. % of an ionizable salt. The use of these EAP and SPE compositions in electromechanical devices, such as solid-state actuators, generators, sensors, and other energy transducers in various applications are also disclosed.