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EP0042572

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EP About this file: EP0042572

EP0042572 - Process for the production of copolymers with a high content of alpha-methylstyrene, thermoplastic resin compositions containing these copolymers and their use for the production of molded articles [Right-click to bookmark this link]
Former [1981/52]	Copolymers with a high content of alpha-methylstyrene, a process for their production and thermoplastic resin compositions containing these copolymers
	[1990/31]
Status	Patent maintained as amended Status updated on 16.06.1990 Database last updated on 24.04.2024
Most recent event Tooltip	17.04.2015	Change - lapse in a contracting state	published on 20.05.2015 [2015/21]
Applicant(s)	For all designated states KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA 2-4 Nakanoshima 3-chome Kita-ku Osaka-shi Osaka-fu 530 / JP
	[N/P]
Former [1981/52]	For all designated states KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA 2-4 Nakanoshima 3-chome Kita-ku Osaka-shi Osaka-fu 530 / JP
Inventor(s)	01 / Mathumoto, Sigemi 329, Nagao, Amido-cho Takasago-shi Hyogo-ken / JP
	02 / Nagoshi, Fumiya 9-36, 9-chome Nishimaiko Tarumi-ku Kobe-shi Hyogo-ken / JP
	[1981/52]
Representative(s)	Vossius & Partner Patentanwälte Rechtsanwälte mbB Siebertstrasse 3 81675 München / DE
	[N/P]
Former [1981/52]	VOSSIUS & PARTNER Postfach 86 07 67 D-81634 München / DE
Application number, filing date	81104618.4	15.06.1981
	[1981/52]
Priority number, date	JP19800081860	16.06.1980 Original published format: JP 8186080
	[1981/52]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	EP0042572
	Date:	30.12.1981
	Language:	EN
	[1981/52]
	Type:	B1 Patent specification
	No.:	EP0042572
	Date:	10.10.1984
	Language:	EN
	[1984/41]
	Type:	B2 New European patent specification
	No.:	EP0042572
	Date:	01.08.1990
	Language:	EN
	[1990/31]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	01.10.1981
Classification	IPC:	C08F212/12, C08L25/16, C08L51/04, // (C08F212/12, 220:44),(C08L25/16, 51:04),(C08L51/04, 25:16)	[1981/52]
	CPC:	C08L25/16 (EP,US); C08F212/12 (EP,US); C08L51/04 (EP,US)
	C-Set:	C08F212/12, C08F220/44 (EP,US); C08L25/16, C08L2666/24 (US,EP); C08L25/16, C08L51/04 (US,EP); C08L51/04, C08L25/16 (US,EP); (+) C08L51/04, C08L2666/04 (EP,US) (-)
Designated contracting states	BE, DE, FR, GB, IT, NL [1981/52]
Title	German:	Verfahren zur Herstellung von Copolymerisaten mit hohem Gehalt an alpha-Methylstyrol, thermoplastische Harzmischungen, welche diese Copolymerisate enthalten und ihre Verwendung zur Herstellung von Formteilen	[1990/31]
	English:	Process for the production of copolymers with a high content of alpha-methylstyrene, thermoplastic resin compositions containing these copolymers and their use for the production of molded articles	[1990/31]
	French:	Procédé de préparation de copolymères à teneur élevée en alpha-méthylstyrène, compositions de résines thermoplastiques contenant ces copolymères et leur utilisation pour la fabrication d'articles moulés	[1990/31]
	Former [1981/52]	Copolymerisate mit hohem Gehalt an alpha-Methylstyrol, Verfahren zu ihrer Herstellung und thermoplastische Harzmischung, welche diese Copolymerisate enthält
	Former [1981/52]	Copolymers with a high content of alpha-methylstyrene, a process for their production and thermoplastic resin compositions containing these copolymers
	Former [1981/52]	Copolymères à teneur élevée en alpha-méthylstyrène, procédé pour leur préparation et compositions de résines thermoplastiques contenant ces copolymères
Examination procedure	02.12.1981	Examination requested [1982/06]
	13.12.1982	Despatch of a communication from the examining division (Time limit: M04)
	22.04.1983	Reply to a communication from the examining division
	10.06.1983	Despatch of a communication from the examining division (Time limit: M04)
	20.10.1983	Reply to a communication from the examining division
	04.01.1984	Despatch of communication of intention to grant (Approval: )
	28.03.1984	Communication of intention to grant the patent
	27.06.1984	Fee for grant paid
	27.06.1984	Fee for publishing/printing paid
Opposition(s)	Opponent(s)	01 15.06.1985 04.07.1985 ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE
		02 05.07.1985 29.07.1985 ADMISSIBLE Naamloze Vennootschap DSM Het Overloon 1 NL-6411 TE Heerlen / NL Opponent's representative Müller-Boré & Partner Patentanwälte PartG mbB Friedenheimer Brücke 21 80639 München / DE
		[N/P]
	Former [1988/11]
	Opponent(s)	01 15.06.1985 04.07.1985 ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE
		02 05.07.1985 29.07.1985 ADMISSIBLE Naamloze Vennootschap DSM Het Overloon 1 NL-6411 TE Heerlen / NL Opponent's representative Müller-Boré & Partner Patentanwälte Grafinger Strasse 2 D-81671 München / DE
	Former [1986/44]
	Opponent(s)	01 15.06.1985 04.07.1985 ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE
		02 05.07.1985 29.07.1985 ADMISSIBLE Naamloze Vennootschap DSM Het Overloon 1 NL-6411 TE Heerlen / NL Opponent's representative Hoogstraten, Willem Cornelis Roeland OCTROOIBUREAU DSM Postbus 9 NL-6160 MA Geleen / NL
	Former [1985/38]
	Opponent(s)	01 15.06.1985 Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE
		02 05.07.1985 Naamloze Vennootschap DSM Het Overloon 1 NL-6411 TE Heerlen / NL Opponent's representative van Leeuwen, Hendrik Bernardus Octrooibureau DSM Postbus 9 NL-6160 MA Geleen / NL
	Former [1985/35]
	Opponent(s)	01 15.06.1985 ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE
	09.09.1985	Invitation to proprietor to file observations on the notice of opposition
	15.05.1986	Reply of patent proprietor to notice(s) of opposition
	19.06.1986	Communication of observations of patent proprietor (Time limit: M03)
	19.09.1986	Reply of parties involved to observations of patent proprietor
	11.02.1987	Despatch of a communication from the opposition division (Time limit: M02)
	13.10.1987	Date of oral proceedings
	04.01.1988	Despatch of minutes of oral proceedings
	06.04.1989	Despatch of interlocutory decision in opposition
	16.04.1989	Legal effect of interlocutory decision in opposition
	11.07.1989	Despatch of communication that the patent will be maintained as amended
	19.10.1989	Fee for printing new specification paid
Fees paid	Renewal fee
	30.06.1983	Renewal fee patent year 03
	29.06.1984	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.
Former [1989/39]	BE	30.06.1989
Documents cited:	Search	[AP]JP55078007 ;
		[AP]JP55078043
		[AP] - PATENTS ABSTRACTS OF JAPAN, Volume 4, No. 124, 2nd September 1980 page 43 (C-23) & JP-A-55 078007 (Sumitomo Naugatuck) 6-12-1980 * Abstract *, & JP55078007 A 00000000
		[AP] - PATENTS ABSTRACTS OF JAPAN, Volume 4, No. 124, 2nd September 1980 page 53 (C-23) & JP-A-55 078043 (Sumitomo Naugatuck) 6-12-1980 * Abstract *, & JP55078043 A 00000000

The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.

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