Nova Patents
AT290035T

Methods of post-polymerization injection in condensation polymer production

Abstract

A method for introducing additives into a process for making condensation polymers, comprising: polymerizing oligomeric precursors via melt phase polycondensation to form condensation polymers having carbonyl functionality; and subsequently introduced into the condensation polymers a reactive carrier having a molecular weight of less than about 10,000 g / mol, the reactive carrier being the delivery vehicle for one or more additives.

Term

No projected expiry on record.

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60 members in 12 offices

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Priority claims
DocumentOfficeKindDate
73815000United States of AmericaA
93215001United States of AmericaA
0148423United States of AmericaW
1761201United States of AmericaA

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WO0248237A1World Intellectual Property Organization (WIPO)A1
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AU3091602AAustraliaA
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AU2002246670A1AustraliaA1
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US6500890B2United States of AmericaB2
US6569991B2United States of AmericaB2
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EP1341836A1European Patent Office (EPO)A1
MXPA03005332AMexicoA
MXPA03005346AMexicoA
MXPA03005347AMexicoA
EP1349884A2European Patent Office (EPO)A2
EP1353985A2European Patent Office (EPO)A2
TW575600BTaiwan Province of ChinaB
US6710158B2United States of AmericaB2
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US2004096609A1United States of AmericaA1
JP2004515621AJapanA
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EP1349884B1European Patent Office (EPO)B1
AT274541TAustriaT
ATE274541T1AustriaT1
DE60105197D1GermanyD1
JP2004530733AJapanA
US6803082B2United States of AmericaB2
TR200402748T4TürkiyeT4
ES2223958T3SpainT3
EP1341836B1European Patent Office (EPO)B1
AT290035TThis recordAustriaT
ATE290035T1AustriaT1
TWI230180BTaiwan Province of ChinaB
DE60109195D1GermanyD1
ES2236348T3SpainT3
US2005170175A1United States of AmericaA1
DE60105197T2GermanyT2
TWI249545BTaiwan Province of ChinaB
DE60109195T2GermanyT2
US2007142537A1United States of AmericaA1
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CA2431637CCanadaC
CA2431527CCanadaC
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