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:
Apr. 12, 2022
Filed:
Jun. 27, 2016
Carrier Corporation, Palm Beach Gardens, FL (US);
Scott Alan Eastman, Glastonbury, CT (US);
Sergei F. Burlatsky, West Hartford, CT (US);
Joseph V. Mantese, Ellington, CT (US);
Wei Xie, East Hartford, CT (US);
Subramanyaravi Annapragada, South Windsor, CT (US);
Parmesh Verma, South Windsor, CT (US);
Vadim V. Atrazhev, Moscow, RU;
Vadim I. Sultanov, Moscow, RU;
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
An electrocaloric element for a heat transfer system includes an electrocaloric material of a copolymer of (i) vinylidene fluoride, (ii) an addition polymerization monomer selected from tetrafluoroethylene, trifluoroethylene, vinyl fluoride, or combinations thereof, and (iii) a halogenated addition polymerization monomer larger than vinylidene fluoride. It is also provided that: (a) the monomer (ii) includes an addition polymerization monomer smaller than trifluoroethylene, (b) at least one of the addition polymerization monomers (ii) or (iii) is a chiral monomer, and the copolymer includes syndiotactic ordered segments of chiral monomer units, and/or (c) at least one of the addition polymerization monomers (ii) or (iii) comprises chlorine, and the copolymer includes an ordered distribution of monomer units comprising chlorine along the copolymer polymer backbone.