Global Patent Index - EP 1093452 A1

EP 1093452 A1 2001-04-25 - METHOD FOR THE PREPARATION OF ORGANIC CARBAMATES

Title (en)

METHOD FOR THE PREPARATION OF ORGANIC CARBAMATES

Title (de)

VERFAHREN ZUR HERSTELLUNG ORGANISCHER CARBAMATE

Title (fr)

PROCEDE DE PREPARATION DE CARBAMATES ORGANIQUES

Publication

EP 1093452 A1 (EN)

Application

EP 99915615 A

Priority

  • EP 99915615 A
  • EP 9901693 W
  • EP 98104775 A

Abstract (en)

[origin: WO9947493A1] Organic carbamates are prepared by the reaction of organic amines (preferably aromatic polyamines) with heteroatom-substituted alkyl carbonates. Said carbamates can be thermolysed into the corresponding isocyanates.

IPC 1-7 (main, further and additional classification)

C07C 269/04; C07C 263/04

IPC 8 full level (invention and additional information)

C07C 263/04 (2006.01); C07C 269/04 (2006.01); C07C 265/14 (2006.01); C07C 271/28 (2006.01)

CPC (invention and additional information)

C07C 263/04 (2013.01); C07C 269/04 (2013.01)

Combination set (CPC)

  1. C07C 263/04 + C07C 265/14
  2. C07C 269/04 + C07C 271/28

Citation (search report)

See references of WO 9947493A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

EPO simple patent family

WO 9947493 A1 19990923; AU 3412799 A 19991011; EP 1093452 A1 20010425

INPADOC legal status


2003-11-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030508

2002-12-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021028

2001-04-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000720

2001-04-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE