Nova Patents
PL361990A1

Elastomeric composition

Abstract

The present invention is a composition including an isobutylene-based copolymer and polybutene. The copolymers may be mixed with an exfoliating compound and clay, the entire composition forming a nanocomposite. The clay may or may not have an additional exfoliating treatment present prior to mixing with the interpolymer. The composition of the invention has improved air barrier properties and processing properties, and is suitable as an air barrier. One embodiment of the invention is an elastomeric composition including at least one random copolymer of at least a C4 to C7 isomonoolefin derived unit, at least one filler, and polybutene oil having a number average molecular weight greater than 400. The copolymer may be selected from a halogenated poly(isobutylene-co-p-methylstyrene), a halogenated star-branched butyl rubber, or a halogenated butyl rubber, and mixtures thereof.

Term

Term ended

Projected expiry passed 16 October 2021, 4.9 years ago.

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136 members in 17 offices

This recordMember, by publication datePriority claim7 more offices are in the list below

Priority claims8

Priority claims
DocumentOfficeKindDate
69176400United States of AmericaA
69176400United States of AmericaA
29480801United States of AmericaP
29480801United States of AmericaP
00691764–––
0160294808–––
US20000691764–––
US20010294808P–––

Members136

Family members, oldest first
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CA2442965A1CanadaA1
CA2443249A1CanadaA1
CA2443261A1CanadaA1
WO0232992A2World Intellectual Property Organization (WIPO)A2
WO0232993A2World Intellectual Property Organization (WIPO)A2
WO0232995A1World Intellectual Property Organization (WIPO)A1
AU1535902AAustraliaA
AU3238402AAustraliaA
AU3238502AAustraliaA
WO0232992A3World Intellectual Property Organization (WIPO)A3
CA2437490A1CanadaA1
WO0248257A2World Intellectual Property Organization (WIPO)A2
AU4320802AAustraliaA
WO0232993A3World Intellectual Property Organization (WIPO)A3
KR20030045119ARepublic of KoreaA
KR20030045120ARepublic of KoreaA
WO0248257A3World Intellectual Property Organization (WIPO)A3
EP1335949A2European Patent Office (EPO)A2
EP1335950A2European Patent Office (EPO)A2
TW553995BTaiwan Province of ChinaB
EP1345990A1European Patent Office (EPO)A1
BR0114756ABrazilA
CZ20031352A3CzechiaA3
CZ20031353A3CzechiaA3
CZ20031354A3CzechiaA3
CZ20031355A3CzechiaA3
HU0302379A2HungaryA2
EP1358265A2European Patent Office (EPO)A2
CN1469895AChinaA
CN1469903AChinaA
MXPA03003384AMexicoA
MXPA03003385AMexicoA
MXPA03003387AMexicoA
HU0303547A2HungaryA2
HU0303578A2HungaryA2
CA2492375A1CanadaA1
WO2004009700A1World Intellectual Property Organization (WIPO)A1
AU2003281629A1AustraliaA1
BR0114742ABrazilA
BR0114751ABrazilA
CN1474855AChinaA
KR20040012672ARepublic of KoreaA
US2004030036A1United States of AmericaA1
KR20040014405ARepublic of KoreaA
HU0303709A2HungaryA2
US2004044118A1United States of AmericaA1
US6710116B1United States of AmericaB1
TW583253BTaiwan Province of ChinaB
JP2004511638AJapanA
JP2004511640AJapanA
EP1345990A4European Patent Office (EPO)A4
US2004087704A1United States of AmericaA1
MXPA03003383AMexicoA
JP2004515626AJapanA
TW589343BTaiwan Province of ChinaB
BR0114720ABrazilA
US2004132894A1United States of AmericaA1
JP2004522811AJapanA
PL361954A1PolandA1
PL361976A1PolandA1
PL361990A1This recordPolandA1
PL365558A1PolandA1
RU2003114162ARussian FederationA
CN1602335AChinaA
EP1523523A1European Patent Office (EPO)A1
US2005137339A1United States of AmericaA1
US6939921B2United States of AmericaB2
CN1668692AChinaA
US2005222335A1United States of AmericaA1
RU2005104421ARussian FederationA
JP2005533163AJapanA
CN1254505CChinaC
CA2589214A1CanadaA1
CA2592498A1CanadaA1
WO2006071311A1World Intellectual Property Organization (WIPO)A1
WO2006071312A2World Intellectual Property Organization (WIPO)A2
WO2006071959A1World Intellectual Property Organization (WIPO)A1
US2006167184A1United States of AmericaA1
WO2006071312A3World Intellectual Property Organization (WIPO)A3
EP1358265B1European Patent Office (EPO)B1
AT358157TAustriaT
DE60127585D1GermanyD1
RU2299221C2Russian FederationC2
HU0303547A3HungaryA3
HU0303578A3HungaryA3
HU0303709A3HungaryA3
WO2007078369A1World Intellectual Property Organization (WIPO)A1
RU2305689C2Russian FederationC2
EP1833856A2European Patent Office (EPO)A2
EP1833912A1European Patent Office (EPO)A1
DE60127585T2GermanyT2
CN101094873AChinaA
CN101094890AChinaA
US2008023118A1United States of AmericaA1
US2008125521A1United States of AmericaA1
US2008139730A1United States of AmericaA1
CN100402597CChinaC
JP2008525613AJapanA
JP2008525628AJapanA
US2008188592A1United States of AmericaA1
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