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Current content: 155 263 406 patent documents

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215 613 new documents added

1 342 057 documents amended

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EP 1093452 A1 20010425 - 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 20010425 (EN)

Application

EP 99915615 A 19990316

Priority

EP 99915615 A 19990316
EP 9901693 W 19990316
EP 98104775 A 19980317

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

C07C 269/04; C07C 263/04

IPC 8 full level

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

CPC (source: EP)

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

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

DOCDB simple family (publication)

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

DOCDB simple family (application)

EP 9901693 W 19990316; AU 3412799 A 19990317; EP 99915615 A 19990316