EP0884331A3

Polymerization catalysts and processes

Abstract

Novel catalyst systems which comprise diimine nickel dihalide complexes can be used with methylaluminoxane in slurry polymerization processes to polymerize ethylene and, optionally a higher alpha-olefin comonomer, to produce high molecular weight polymers.

Term

Term ended

Projected expiry passed 10 June 2018, 8.3 years ago.

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
WO9623010A2	Cites	World Intellectual Property Organization (WIPO)	A	Search report	1
WO9748735A1	Cites	World Intellectual Property Organization (WIPO)	PX	Search report	1-8

14 members in 10 offices

This recordMember, by publication datePriority claim

Priority claims4

Priority claims
Document	Office	Kind	Date
873362	United States of America	–	1997-06-12
87336297	United States of America	A	1997-06-12
87336297	United States of America	A	1997-06-12
US19970873362	–	–	–

Members14

Family members, oldest first
Document	Office	Kind
NO982701D0	Norway	D0	1998-06-11
HU9801341D0	Hungary	D0	1998-08-28
CA2240034A1	Canada	A1	1998-12-12
NO982701L	Norway	L	1998-12-14
EP0884331A2	European Patent Office (EPO)	A2	1998-12-16
AU6992498A	Australia	A	1998-12-17
ZA985099B	South Africa	B	1999-01-12
JPH1112317A	Japan	A	1999-01-19
KR19990006927A	Republic of Korea	A	1999-01-25
EP0884331A3This record	European Patent Office (EPO)	A3	1999-03-10
HUP9801341A2	Hungary	A2	1999-03-29
HUP9801341A3	Hungary	A3	1999-05-28
ID21382A	Indonesia	A	1999-06-03
BR9804520A	Brazil	A	1999-12-21

12 legal events, as 2 offices reported them to INPADOC

Over the term

Point at a mark for the event

Events

Legal events, newest first
	Event	Code	Office
2000-07-20	Designated country de not longer valid8566	8566	DE
2000-06-14	Application deemed to be withdrawnWithdrawn18D	18D	EP
2000-04-28	Information on the status of an ep patent application or granted ep patentGrantedSTAA	STAA	EP
1999-11-24	Designation fees paidAKX	AKX	EP
1999-04-21	Title (correction)RTI1	RTI1	EP
1999-03-10	Designated contracting statesAK	AK	EP
1999-03-10	Request for extension of the european patentAX	AX	EP
1999-03-03	Title (correction)RTI1	RTI1	EP
1999-01-22	Search report despatchedPUAL	PUAL	EP
1998-12-16	Designated contracting statesAK	AK	EP
1998-12-16	Request for extension of the european patentAX	AX	EP
1998-10-30	Public reference made under article 153(3) epc to a published international application that has entered the european phasePUAI	PUAI	EP