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EP0091055

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Extract from the Register of European Patents

EP About this file: EP0091055

EP0091055 - Process for preparing polyphenylene ethers [Right-click to bookmark this link]
Status	Patent revoked Status updated on 03.04.1990 Database last updated on 31.08.2024
Most recent event Tooltip	05.10.2005	Change: Appeal number
Applicant(s)	For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE
	[N/P]
Former [1983/41]	For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE
Inventor(s)	01 / Hambrecht, Juergen, Dr. Werderstrasse 30 D-6900 Heidelberg / DE
	02 / Naarmann, Herbert, Dr. Haardtblick 15 D-6719 Wattenheim / DE
	03 / Muench, Volker, Dr. Luitpoldstrasse 114 D-6700 Ludwigshafen / DE
	04 / Brandt, Hermann, Dr. Vogelgartenstrasse 50 D-6707 Schifferstadt / DE
	05 / Swoboda, Johann, Dr. Neuwiesenstrasse 28 D-6700 Ludwigshafen / DE
	[1983/41]
Application number, filing date	83103051.5	28.03.1983
	[1983/41]
Priority number, date	DE19823212925	07.04.1982 Original published format: DE 3212925
	[1983/41]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0091055
	Date:	12.10.1983
	Language:	DE
	[1983/41]
	Type:	B1 Patent specification
	No.:	EP0091055
	Date:	11.06.1986
	Language:	DE
	[1986/24]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	22.07.1983
Classification	IPC:	C08G65/44	[1983/41]
	CPC:	C08G65/44 (EP)
Designated contracting states	BE, DE, FR, GB, NL [1983/41]
Title	German:	Verfahren zur Herstellung von Polyphenylenethern	[1983/41]
	English:	Process for preparing polyphenylene ethers	[1983/41]
	French:	Procédé de fabrication de poly(éther de phénylène)	[1983/41]
Examination procedure	05.11.1983	Examination requested [1984/02]
	04.02.1985	Despatch of a communication from the examining division (Time limit: M04)
	11.04.1985	Reply to a communication from the examining division
	30.10.1985	Despatch of communication of intention to grant (Approval: )
	12.12.1985	Communication of intention to grant the patent
	27.02.1986	Fee for grant paid
	27.02.1986	Fee for publishing/printing paid
Opposition(s)	Opponent(s)	01 27.02.1987 01.04.1987 ADMISSIBLE Hüls Aktiengesellschaft Patentabteilung/PB 15 D-45764 Marl / DE
		[N/P]
	Former [1987/18]
	Opponent(s)	01 27.02.1987 01.04.1987 ADMISSIBLE HÜLS AKTIENGESELLSCHAFT Patentabteilung/PB 15 D-45764 Marl / DE
	23.04.1987	Invitation to proprietor to file observations on the notice of opposition
	03.07.1987	Reply of patent proprietor to notice(s) of opposition
	13.07.1987	Communication of observations of patent proprietor (Time limit: M02)
	04.09.1987	Reply of parties involved to observations of patent proprietor
	18.01.1990	Legal effect of revocation of patent [1990/21]
	18.01.1990	Despatch of communication that the patent will be revoked
Appeal following opposition	11.06.1988	Appeal received No. T0242/88
	05.08.1988	Statement of grounds filed
	18.01.1990	Result of appeal procedure: revocation of the patent
	18.01.1990	Date of oral proceedings
	09.01.1990	Minutes of the oral proceedings despatched
Fees paid	Renewal fee
	16.03.1985	Renewal fee patent year 03
	15.03.1986	Renewal fee patent year 04
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	JPS4428316B [ ] (JAPAN SYNTHETIC CHEMICAL INDUSTRY CO., LTD.));
		[A]US3337501 (JAN BUSSINK, et al);
		[A]EP0047428 (BASF AG [DE])
		[X] - CHEMICAL ABSTRACTS, (19700323), vol. 72, no. 12, Database accession no. 56083H, page 16
		[Y] - LICHOTA D. ET AL, "Poly(phenylene oxides). II. Oxidative polymerization of 2,6-xylenol in the presence of cuprous chloride and triethylenediamine", CHEMICAL ABSTRACTS, (19700921), vol. 73, no. 12, Database accession no. 56496R, page 4
		[ ] - POLIMERY, (1970), vol. 15, no. 1, pages 5 - 7
		[A] - BAILY J., "Two-stage oxidative polymerization of 2,6-xylenol to high-molecular-weight poly(phenylene oxide). Synthesis of oligomers. II. Relative activities of phenol, resols, and xylenols", CHEMICAL ABSTRACTS, (19700713), vol. 73, no. 2, Database accession no. 4216E, page 2
		[ ] - POLIMERY, (1969), vol. 14, no. 11, pages 535 - 538

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