ATE73473T1

Styrene-diene block copolymer compositions.

Abstract

The invention provides a composition comprising about 2 to about 30 parts by weight of a mixture of poly(styrene-ethylene-butylene-styrene) triblock copolymers; and about 70 to about 98 parts by weight of a hydrocarbon oil; and wherein the mixture of triblock copolymers comprises (a) a triblock copolymer having a styrene to ethylene-butylene ratio of 14 to 30 styrene blocks to 70 to 86 ethylene-bulylene blocks; and (b) ethylene-butylene ratio of 31 to 35 styrene blocks to 65 to 69 ethylene-butylene blocks; and wherein the ratio of copolymer (a) to copolymer (b) is from about 15:85 to about 85:15. <??>The compositions of the invention are particularly useful as sealing materials.

Term

Term ended

Projected expiry passed 21 November 2006, 19.8 years ago.

15 members in 9 offices

This recordMember, by publication datePriority claim

Priority claims1

Priority claims
Document	Office	Kind	Date
80101885	United States of America	A	1985-11-22

Members15

Family members, oldest first
Document	Office	Kind
EP0224389A2	European Patent Office (EPO)	A2	1987-06-03
JPS62129340A	Japan	A	1987-06-11
BR8605734A	Brazil	A	1987-08-25
US4716183A	United States of America	A	1987-12-29
EP0224389A3	European Patent Office (EPO)	A3	1989-03-15
EP0224389B1	European Patent Office (EPO)	B1	1992-03-11
AT73473T	Austria	T	1992-03-15
ATE73473T1This record	Austria	T1	1992-03-15
DE3684248D1	Germany	D1	1992-04-16
CA1310151C	Canada	C	1992-11-10
ES2032385T3	Spain	T3	1993-02-16
GR3004846T3	Greece	T3	1993-04-28
CA1333306C	Canada	C	1994-11-29
JPH07252397A	Japan	A	1995-10-03
JPH0796637B2	Japan	B2	1995-10-18

2 legal events, as the office reported them to INPADOC

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Events

Legal events, newest first
	Event	Code
1997-08-15	Ceased due to non-payment of the annual feeCeasedREN	REN
1992-10-15	Publication of translation of european patent specificationUEP	UEP