Nova Patents
ATE531737T1

Formaldehyde free binder

Abstract

An aqueous, formaldehyde-free binder composition comprising a modified copolymer of maleic anhydride and a vinyl aromatic compound such as styrene, the copolymer being modified by reaction with a primary alkanolamine, such as monoethanolamine (MEA), to produce a modified copolymer that is self-curing and cures as a consequence of cross-linking, esterification reactions between pendant carboxyls and hydroxyl groups on the solubilized (hydrolyzed) modified copolymer chains; the invention also relates to the corresponding method of using the binder composition for making fiber products, especially fiberglass insulation.

Term

0.6 yearsto projected expiry

Projected expiry 4 May 2027, counted from filing; an application has no term until it is granted.

  1. Priority
  2. Filed
  3. Published
  4. Today
  5. Projected expiry

40 members in 9 offices

This recordMember, by publication datePriority claim

Priority claims2

Priority claims
DocumentOfficeKindDate
45432606United States of AmericaA
2007068226United States of AmericaW

Members40

Family members, oldest first
DocumentOfficeKind
US2007292618A1United States of AmericaA1
US2007292619A1United States of AmericaA1
WO2007149643A1World Intellectual Property Organization (WIPO)A1
WO2007149644A1World Intellectual Property Organization (WIPO)A1
EP2029633A1European Patent Office (EPO)A1
EP2044134A1European Patent Office (EPO)A1
US2010029160A1United States of AmericaA1
US7795354B2United States of AmericaB2
US7803879B2United States of AmericaB2
WO2011068984A2World Intellectual Property Organization (WIPO)A2
US2011165398A1United States of AmericaA1
WO2011068984A3World Intellectual Property Organization (WIPO)A3
EP2029633B1European Patent Office (EPO)B1
AT531737TAustriaT
ATE531737T1This recordAustriaT1
PL2029633T3PolandT3
US2012064323A1United States of AmericaA1
US2012183723A1United States of AmericaA1
US2012252937A1United States of AmericaA1
EP2507305A2European Patent Office (EPO)A2
WO2013036752A2World Intellectual Property Organization (WIPO)A2
WO2013036752A3World Intellectual Property Organization (WIPO)A3
CA2861063A1CanadaA1
WO2013106613A1World Intellectual Property Organization (WIPO)A1
CA2868004A1CanadaA1
WO2013142194A1World Intellectual Property Organization (WIPO)A1
EP2753742A2European Patent Office (EPO)A2
CN104136540AChinaA
EP2802621A1European Patent Office (EPO)A1
EP2753742A4European Patent Office (EPO)A4
EP2802621A4European Patent Office (EPO)A4
US9169157B2United States of AmericaB2
US9169364B2United States of AmericaB2
US9217065B2United States of AmericaB2
BR112012013476A2BrazilA2
EP2044134B1European Patent Office (EPO)B1
CN104136540BChinaB
BR112014017220A2BrazilA2
BR112014017220A8BrazilA8
ZA201406954BSouth AfricaB