ATE6741T1

Polymer blend films, their preparation and use

Abstract

A moisture vapour transmitting film comprising a blend of polyurethane and an incompatible polymer characterised in that the incompatible polymer forms a discrete phase within a continuous matrix of polyurethane and that said film contains voids and processes for the manufacture thereof.

Term

Term ended

Projected expiry passed 7 August 2001, 25.1 years ago.

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

20 members in 12 offices

This recordMember, by publication datePriority claim2 more offices are in the list below

Priority claims1

Priority claims
DocumentOfficeKindDate
8026366United KingdomA

Members20

Family members, oldest first
DocumentOfficeKind
IE811793LIrelandL
DK358781ADenmarkA
EP0046071A2European Patent Office (EPO)A2
GB2081721AUnited KingdomA
AU7400081AAustraliaA
JPS5763229AJapanA
EP0046071A3European Patent Office (EPO)A3
ZA815523BSouth AfricaB
EP0046071B1European Patent Office (EPO)B1
NZ197988ANew ZealandA
AT6741TAustriaT
ATE6741T1This recordAustriaT1
DE3162807D1GermanyD1
GB2081721BUnited KingdomB
US4452845AUnited States of AmericaA
CA1177208ACanadaA
AU545048B2AustraliaB2
IE51473B1IrelandB1
JPH0235779B2JapanB2
DK168633B1DenmarkB1