EP0347827A3

Epoxytriazine-capped polyphenylene ethers and method of preparation

Abstract

Epoxytriazine-capped polyphenylene ethers are prepared by reaction of a polyphenylene ether with an epoxychlorotriazine such as diglycidyl chlorocyanurate, n-butyl glycidyl chlorocyanurate or mesityl glycidyl chlorocyanurate. The products undergo reaction with nucleophilic polymers such as polyamides and polyesters, to form copolymer-containing compositions which have excellent properties and which find utility as molding compositions and as compatibilizers for blends of similar polymers.

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Projected expiry passed 20 June 2009, 17.3 years ago.

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Citations
Document	Relation	Office	Category	Cited during
EP0248263A2	Cites	European Patent Office (EPO)	AD	Search report
EP0253334A2	Cites	European Patent Office (EPO)	A	Search report
DE3300232A1	Cites	Germany	AD	Search report

6 priority claims, no other members on record

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Priority claims
Document	Office	Kind	Date
210547	United States of America	–	1988-06-23
21054788	United States of America	A	1988-06-23
351905	United States of America	–	1989-05-15
35190589	United States of America	A	1989-05-15
US19880210547	–	–	–
US19890351905	–	–	–

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	Event	Code	Office
2005-06-20	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-04-02	Notification of lapseLapsedST	ST	FR
2004-02-27	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-02-11	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2004-01-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2003-06-20	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2002-06-20	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-06-12	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-05-30	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
1999-12-01	Announcement of lapse in spainLapsedFD2A	FD2A	ES
1997-03-03	Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4	NLV4	EP
1997-01-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1996-06-21	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
1995-09-20	No opposition filedOpposition26N	26N	EP
1995-07-29	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
1995-07-29	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
1995-06-12	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1995-05-22	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
1995-01-16	Definitive protectionFG2A	FG2A	ES
1994-12-16	Fr: translation filedET	ET	EP
1994-11-16	It: translation for a ep patent filedITF	ITF	EP
1994-11-16	It: translation for a ep patent filedITF	ITF	EP
1994-11-03	Corresponds to:REF	REF	EP
1994-09-28	Designated contracting statesAK	AK	EP
1994-08-12	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1993-06-23	First examination report despatched17Q	17Q	EP
1991-12-18	Request for examination filed17P	17P	EP
1991-05-15	Designated contracting statesAK	AK	EP
1991-03-26	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1989-12-27	Designated contracting statesAK	AK	EP
1989-11-11	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Epoxytriazine-capped polyphenylene ethers and method of preparation

Abstract

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