Nova Patents
NO20006486L

Methods for the removal of unwanted monomer amide compounds from polyamide preparations

Abstract

The present invention describes methods for removing unwanted amide monomer compound from a polyamide or polymerized polyamide composition at a pH of about 2 to less than 6 by converting the amide monomer to the corresponding acid compound using a pure culture of an introduced microorganism strain capable of converting an amide group to an acid group.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Published
  4. Today

30 members in 15 offices

This recordMember, by publication datePriority claim5 more offices are in the list below

Priority claims8

Priority claims
DocumentOfficeKindDate
10477498United States of AmericaA
10477498United States of AmericaA
9914276United States of AmericaW
9914276United States of AmericaW
9914276–––
104774–––
US19980104774–––
WO1999US14276–––

Members30

Family members, oldest first
DocumentOfficeKind
CA2275413A1CanadaA1
WO9827016A1World Intellectual Property Organization (WIPO)A1
AU5620298AAustraliaA
US5863750AUnited States of AmericaA
NO992975D0NorwayD0
NO992975LNorwayL
EP0958252A1European Patent Office (EPO)A1
CA2335985A1CanadaA1
WO9967300A1World Intellectual Property Organization (WIPO)A1
AU4714499AAustraliaA
US6060265AUnited States of AmericaA
AU721240B2AustraliaB2
KR20000057662ARepublic of KoreaA
US6132985AUnited States of AmericaA
NO20006486D0NorwayD0
NO20006486LThis recordNorwayL
ID27043AIndonesiaA
BR9911437ABrazilA
EP1093472A1European Patent Office (EPO)A1
CN1307595AChinaA
EP0958252B1European Patent Office (EPO)B1
AT213489TAustriaT
ATE213489T1AustriaT1
DE69710617D1GermanyD1
JP2002513324AJapanA
ZA200007220BSouth AfricaB
DE69710617T2GermanyT2
AU752325B2AustraliaB2
ES2173511T3SpainT3
KR100574770B1Republic of KoreaB1