Nova Patents
CS194235B2

Method of preparing high crystalline quickly crystallizing,thermoplastic copolyester of terephthalic acid

Abstract

Terephthalic copolyesters, the diol component of which mainly consists of ethylene glycol units, crystallize more rapidly than pure polyethylene terephthalate and can be moulded in a way comparable to polybutylene terephthalate.

Term

No projected expiry on record.

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

22 members in 12 offices

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

Priority claims3

Priority claims
DocumentOfficeKindDate
2507674GermanyA
752507674–––
DE19752507674–––

Members22

Family members, oldest first
DocumentOfficeKind
BE838778ABelgiumA
NL7600808ANetherlands (Kingdom of the)A
DE2507674A1GermanyA1
FR2301546A1FranceA1
JPS51107396AJapanA
DD126600A5German Democratic Republic (until 1990)A5
GB1505599AUnited KingdomA
US4086212AUnited States of AmericaA
CH602819A5SwitzerlandA5
US4136089AUnited States of AmericaA
FR2301546B1FranceB1
CS194235B2This recordCzechoslovakia (until 1993)B2
NL7907674ANetherlands (Kingdom of the)A
CA1076738ACanadaA
NL167179BNetherlands (Kingdom of the)B
IT1053880BItalyB
NL167179CNetherlands (Kingdom of the)C
JPS614842B2JapanB2
NL182084BNetherlands (Kingdom of the)B
NL182084CNetherlands (Kingdom of the)C
DE2560492C2GermanyC2
DE2507674C2GermanyC2