Nova Patents
CS33491A2

Block copolymers from ionic catalysis and method of their preparation

Abstract

A process for the production of block copolymers of ethylene and an alpha -olefin such as propylene by using an ionic catalyst system including a metallocene component and a component having a cation capable of donating a proton and a compatible non-coordinating anion. Novel block copolymers are produced.

Term

No projected expiry on record.

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397 members in 27 offices

This recordMember, by publication datePriority claim17 more offices are in the list below

Priority claims4

Priority claims
DocumentOfficeKindDate
47779190United States of AmericaA
47779190United States of AmericaA
90477791–––
US19900477791–––

Members397

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DocumentOfficeKind
IL85098D0IsraelD0
EP0277003A1European Patent Office (EPO)A1
EP0277004A1European Patent Office (EPO)A1
WO8805792A1World Intellectual Property Organization (WIPO)A1
WO8805793A1World Intellectual Property Organization (WIPO)A1
AU1245288AAustraliaA
AU1294588AAustraliaA
NO884210D0NorwayD0
NO884210LNorwayL
NO884295D0NorwayD0
NO884295LNorwayL
FI884486AFinlandA
FI884487AFinlandA
DK548888D0DenmarkD0
DK548988D0DenmarkD0
PL270367A1PolandA1
DK548888ADenmarkA
DK548988ADenmarkA
PT86671APortugalA
PT86672APortugalA
PL270366A1PolandA1
KR890700612ARepublic of KoreaA
KR890700618ARepublic of KoreaA
JPH01501950AJapanA
JPH01502036AJapanA
PL276385A1PolandA1
BR8805025ABrazilA
BR8805026ABrazilA
YU16188AYugoslavia, later Serbia and Montenegro (until 2006)A
YU16288AYugoslavia, later Serbia and Montenegro (until 2006)A
HUT52791AHungaryA
NO903928D0NorwayD0
CA2024899A1CanadaA1
CA2065745A1CanadaA1
NO903928LNorwayL
NO953466LNorwayL
AU6248390AAustraliaA
HU905878D0HungaryD0
EP0420436A1European Patent Office (EPO)A1
WO9104257A1World Intellectual Property Organization (WIPO)A1
AU6443990AAustraliaA
KR910006335ARepublic of KoreaA
YU178689AYugoslavia, later Serbia and Montenegro (until 2006)A
YU178789AYugoslavia, later Serbia and Montenegro (until 2006)A
PL286878A1PolandA1
PT95272APortugalA
AU610863B2AustraliaB2
US5026798AUnited States of AmericaA
HUT55791AHungaryA
IL95549D0IsraelD0
CA2075035A1CanadaA1
CS33491A2This recordCzechoslovakia (until 1993)A2
JPH03188092AJapanA
WO9112285A1World Intellectual Property Organization (WIPO)A1
AU7324491AAustraliaA
BR9004537ABrazilA
CA2078665A1CanadaA1
WO9114713A1World Intellectual Property Organization (WIPO)A1
US5055438AUnited States of AmericaA
US5057475AUnited States of AmericaA
PT96743APortugalA
AU617990B2AustraliaB2
CA2085581A1CanadaA1
WO9200333A2World Intellectual Property Organization (WIPO)A2
EP0468537A1European Patent Office (EPO)A1
NZ235095ANew ZealandA
IL85097AIsraelA
NO920971D0NorwayD0
CA2090872A1CanadaA1
CA2090972A1CanadaA1
US5096867AUnited States of AmericaA
WO9200333A3World Intellectual Property Organization (WIPO)A3
IL85098AIsraelA
WO9205203A1World Intellectual Property Organization (WIPO)A1
WO9205204A1World Intellectual Property Organization (WIPO)A1
EP0478913A1European Patent Office (EPO)A1
AU8651891AAustraliaA
AU8754291AAustraliaA
NO920971LNorwayL
IL97198D0IsraelD0
DD300233A5German Democratic Republic (until 1990)A5
EP0491842A1European Patent Office (EPO)A1
YU45838BYugoslavia, later Serbia and Montenegro (until 2006)B
BR9007642ABrazilA
KR920702365ARepublic of KoreaA
US5153157AUnited States of AmericaA
EP0513216A1European Patent Office (EPO)A1
PL159193B1PolandB1
PL159196B1PolandB1
US5168111AUnited States of AmericaA
KR927003669ARepublic of KoreaA
EP0521908A1European Patent Office (EPO)A1
PL159854B1PolandB1
US5198401AUnited States of AmericaA
BR9106589ABrazilA
JPH05503546AJapanA
KR930701493ARepublic of KoreaA
EP0548257A1European Patent Office (EPO)A1
EP0548277A1European Patent Office (EPO)A1
CA2126317A1CanadaA1
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