EP0443686A3

Co-oligomerization process

Abstract

A process for the preparation of linear olefins comprises reacting ethene with at least one further alpha olefin under oligomerizing conditions in the presence of a catalyst system comprising a combination of a first component which is a bis(cyclopentadienyl) Group IVA metal compound containing a substituent capable of reacting with a cation and a second component which is a compound having a bulky anion containing a plurality of boron atoms and which is substantially non-coordinating under the reaction conditions and a cation, and recovering an oligomeric product comprising linear olefins.

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Term ended

Projected expiry passed 20 February 2011, 15.6 years ago.

Every citation, both waysCites: the store holds 3 of 4

Citations
Document	Relation	Office	Category	Cited during
EP0257696A1	Cites	European Patent Office (EPO)	A	Search report
EP0277003A1	Cites	European Patent Office (EPO)	AD	Search report
EP0366212A1	Cites	European Patent Office (EPO)	AP	Search report
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 111, no. 7, 29th March 1989, pages 2728-2729, American Chemical Society; G.G. HLATKY et al.: "Ionic, base-free zirconocene catalysts for ethylene polymerization"	Non-patent	–	–	Search report

16 members in 9 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
9004014	United Kingdom	A	1990-02-22
9004014	United Kingdom	–	1990-02-22
GB19900004014	–	–	–

Members16

Family members, oldest first
Document	Office	Kind
CA2036762A1	Canada	A1	1991-08-23
EP0443686A2	European Patent Office (EPO)	A2	1991-08-28
CN1054987A	China	A	1991-10-02
BR9100673A	Brazil	A	1991-10-29
EP0443686A3This record	European Patent Office (EPO)	A3	1991-12-04
KR910021352A	Republic of Korea	A	1991-12-20
JPH04211616A	Japan	A	1992-08-03
EP0443686B1	European Patent Office (EPO)	B1	1994-12-07
DE69105545D1	Germany	D1	1995-01-19
ES2065605T3	Spain	T3	1995-02-16
DE69105545T2	Germany	T2	1995-04-13
IN181265B	India	B	1998-05-02
KR100190560B1	Republic of Korea	B1	1999-06-01
CN1045197C	China	C	1999-09-22
JP2987599B2	Japan	B2	1999-12-06
CA2036762C	Canada	C	2001-10-16

35 legal events, as 4 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2005-05-16	Announcement of lapse in spainLapsedFD2A	FD2A	ES
2005-02-20	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-12-03	Notification of lapseLapsedST	ST	FR
2004-11-01	Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4	NLV4	EP
2004-10-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-10-13	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2004-09-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-09-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-08-31	Be: lapsedLapsedBERE	BERE	EP
2004-02-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-02-21	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-02-20	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2003-03-04	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-02-19	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-02-17	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-01-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-01-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-12-13	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
1995-11-29	No opposition filedOpposition26N	26N	EP
1995-10-12	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
1995-10-12	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
1995-02-17	Fr: translation filedET	ET	EP
1995-02-16	Definitive protectionFG2A	FG2A	ES
1995-01-19	Corresponds to:REF	REF	EP
1994-12-27	It: translation for a ep patent filedITF	ITF	EP
1994-12-27	It: translation for a ep patent filedITF	ITF	EP
1994-12-07	Designated contracting statesAK	AK	EP
1994-10-21	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1993-11-24	First examination report despatched17Q	17Q	EP
1992-06-17	Request for examination filed17P	17P	EP
1991-12-04	Designated contracting statesAK	AK	EP
1991-10-17	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1991-08-28	Designated contracting statesAK	AK	EP
1991-07-12	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Co-oligomerization process

Abstract

Term

Priority claims3

Members16

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Events

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Titles3

Classification

Designated states1