Nova Patents
AT370781T

Method for making a fibrous electret web using a wetting liquid and an aqueous polar liquid

Abstract

The invention relates to a entrusts with manufactured the fibre gird (20) pressure charge method. A wet liquid (24) and fibre gird (20) wet, connected with watery polar liquid (30) and an, and drying (31). The dry product for forming a brake and 4b the assembly (50) on the screen electret product (43).

Term

No projected expiry on record.

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

24 members in 13 offices

This recordMember, by publication datePriority claim3 more offices are in the list below

Priority claims1

Priority claims
DocumentOfficeKindDate
41529199United States of AmericaA

Members24

Family members, oldest first
DocumentOfficeKind
CA2385770A1CanadaA1
WO0126778A1World Intellectual Property Organization (WIPO)A1
AU2516100AAustraliaA
KR20020038801ARepublic of KoreaA
BR0014559ABrazilA
US6406657B1United States of AmericaB1
EP1229988A1European Patent Office (EPO)A1
CN1384767AChinaA
US2002190434A1United States of AmericaA1
JP2003514998AJapanA
AU767679B2AustraliaB2
PL354171A1PolandA1
US6824718B2United States of AmericaB2
CN1212199CChinaC
RU2266771C2Russian FederationC2
KR100627757B1Republic of KoreaB1
EP1229988B1European Patent Office (EPO)B1
AT370781TThis recordAustriaT
ATE370781T1AustriaT1
DE60036127D1GermanyD1
DE60036127T2GermanyT2
JP4518725B2JapanB2
BR0014559B1BrazilB1
BRPI0014559B1BrazilB1