Patent details

Basic Information

Publication number:

EP0504426

PCT Application Number:

PCT/JP/91/01364

Type:

European Patent Granted for LU

Legal Status:

Lapsed

Application number:

EP919173377

PCT Publication Number:

WO/92/06129

First applicant's nationality:

Translation Language:

EPO Publication Language:

Not available

English Title of Invention:

Process for producing an aromatic polyester which contains resorcinol units

French Title of Invention:

Procédé de preparation d'un polyester aromatique comprenant des unités de récorcinol

German Title of Invention:

Verfahren zur Herstellung eines aromatischen Polyesters, der Resorcin-Einheiten enthÄlt

SPC Number:

Dates

Filing date:

07/10/1991

Grant date:

28/07/1999

EP Publication Date:

28/07/1999

PCT Publication Date:

16/04/1992

Claims Translation Received Date:

Translations Received Date (B1 EP Publication):

Translations Received Date (B2 EP Publication):

Translations Received Date (B3 EP Publication):

Publication date:

23/09/1992

EP B1 Publication Date:

28/07/1999

EP B2 Publication Date:

EP B3 Publication Date:

Lapsed date:

07/10/1999

Expiration date:

07/10/2011

Renunciation date:

Revocation date:

Annulment date:

Owner

From:

07/10/1991

 

 

Name:

SUMITOMO CHEMICAL COMPANY LIMITED

Address:

5-33, Kitahama 4-chome, Chuo-k, Osaka-shi, Osaka 541-0041, Japan (JP)

Inventor

1

Name:

HARADA Hiroshi

Address:

Japan (JP)

2

Name:

ASAI Kuniaki

Address:

Japan (JP)

3

Name:

NITTA Itaru

Address:

Japan (JP)

Priority

1

Priority Number:

27101390

Priority Date:

08/10/1990

Priority Country:

Japan (JP)

2

Priority Number:

25771091

Priority Date:

04/10/1991

Priority Country:

Japan (JP)

Classification

Main IPC Class:

C08G 63/60;

Filing date	Document type	Number of pages