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EP2339869

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Extract from the Register of European Patents

EP About this file: EP2339869

EP2339869 - Ferroelectric dual and multiple layer compound and method for its manufacture [Right-click to bookmark this link]
Status	The application has been withdrawn Status updated on 18.11.2011 Database last updated on 28.03.2026
Most recent event Tooltip	18.11.2011	Withdrawal of application	published on 21.12.2011 [2011/51]
Applicant(s)	For all designated states Bayer MaterialScience AG 51368 Leverkusen / DE
	[N/P]
Former [2011/26]	For all designated states Bayer MaterialScience AG 51368 Leverkusen / DE
Inventor(s)	01 / Jenninger, Werner, Dr. Eifelplatz 9 50677 Köln / DE
	02 / Wagner, Joachim, Dr. Semmelweisstrasse 135 51061 Köln / DE
	03 / Benecke, Carsten, Dr. Vierthauen 9 79576 Weil am Rhein / DE
	[2011/26]
Application number, filing date	09014141.7	12.11.2009
	[2011/26]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP2339869
	Date:	29.06.2011
	Language:	DE
	[2011/26]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	19.04.2010
Classification	IPC:	H04R17/00, H01L41/083, H01L41/113	[2011/26]
	CPC:	H04R17/005 (EP,US); H10N30/057 (EP,US); H10N30/098 (EP,US); H10N30/50 (EP,US); H10N30/857 (EP,US); H01G4/20 (EP,US); (+) Y10T29/42 (EP,US) (-)
Designated contracting states	AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR [2011/26]
Extension states	AL	Not yet paid
	BA	Not yet paid
	RS	Not yet paid
Title	German:	Ferroelektret-Zwei- und Mehrschichtverbund und Verfahren zu dessen Herstellung	[2011/26]
	English:	Ferroelectric dual and multiple layer compound and method for its manufacture	[2011/26]
	French:	Composite ferroélectrique à deux et plusieurs couches et son procédé de fabrication	[2011/26]
Examination procedure	15.11.2011	Application withdrawn by applicant [2011/51]
Fees paid	Renewal fee
	14.11.2011	Renewal fee patent year 03
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:	Search	[Y] WO2009018130 (PENN STATE RES FOUND et al.)
		[XDYI] R. A. P. ALTAFIM ET AL.: "Template-based fluoroethylenepropylene piezoelectrets with tubular channels for transducer applications", JOURNAL OF APPLIED PHYSICS, vol. 106, 9 July 2009 (2009-07-09), pages 014106, XP012123453 DOI: http://dx.doi.org/10.1063/1.3159039
		[AD] BASSO H C ET AL: "Three-layer ferroelectrets from perforated Teflon TM -PTFE films fused between two homogeneous Teflon TM -FEP films", ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, 2007. CEIDP 2007. ANNUAL REPORT - CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 14 October 2007 (2007-10-14), pages 453 - 456, XP031230601, ISBN: 978-1-4244-1481-9
	by applicant	WO2006053528
		US4654546
		EETTA SAARIMKI ET AL.: "Novel Heat Durable Electromechanical Film: Processing for Electromechanical and Electret Applications", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, vol. 13, October 2006 (2006-10-01), pages 963 - 972
		Z. HU; H. VON SEGGERN: "Air-breakdown charging mechanism of fibrous polytetrafluoroethylene films", JOURNAL OF APPLIED PHYSICS, vol. 98, 2005
		"Breakdown-induced polarization buildup in porous fluoropolymer sandwiches: A thermally stable piezoelectret", JOURNAL OF APPLIED PHYSICS, vol. 99, 2006
		H.C. BASSO ET AL.: "Three-layer ferroelectrets from perforated Teflon-PTFE films fused between two homogeneous Teflon -FEP films", IEEE, 2007 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, 2007, pages 453 - 456
		JINFENG HUANG ET AL.: "Piezoelectrets from laminated sandwiches of porous polytetrafluoroethylene films and nonporous fluoroethylenepropylene films", JOURNAL OF APPLIED PHYSICS, vol. 103, 2008
		X. ZHANG; J. HILLENBRAND; G. M. SESSLER: "Thermally stable fluorocarbon ferroelectrets with high piezoelectric coefficient", APPLIED PHYSICS A, vol. 84, 2006, pages 139 - 142
		"Ferroelectrets with improved thermal stability made from fused fluorocarbon layers", JOURNAL OF APPLIED PHYSICS, vol. 101, 2007
		XIAOQING ZHANG; JINFENG HUANG; ZHONGFU XIA: "Piezoelectric activity and thermal stability of cellular fluorocarbon films", PHYSICA SCRIPTA, vol. T129, 2007, pages 274 - 277
		R. A. C. ALTAFIM ET AL.: "Piezoelectrets from thermo-formed bubble structures of fluoropolymer-electret films", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, vol. 13, no. 5, 2006, pages 979 - 985
		R. A. P. ALTAFIM ET AL.: "Template-based fluoroethylenepropylene piezoelectrets with tubular channels for transducer applications", JOURNAL OF APPLIED PHYSICS, vol. 106, 2009, pages 014106

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