Global Patent Index - EP 1032564 A1

EP 1032564 A1 2000-09-06 - METHOD FOR PRODUCING HEAT-STABLE EPOXY COMPOUNDS

Title (en)

METHOD FOR PRODUCING HEAT-STABLE EPOXY COMPOUNDS

Title (de)

VERFAHREN ZUR HERSTELLUNG THERMOSTABILER EPOXIDVERBINDUNGEN

Title (fr)

PROCEDE DE PREPARATION DE COMPOSES EPOXYDES THERMOSTABLES

Publication

EP 1032564 A1 (DE)

Application

EP 98958869 A

Priority

  • DE 19748573 A
  • EP 9806765 W

Abstract (en)

[origin: DE19748573A1] The invention relates to a method for producing heat-stable epoxy compounds, wherein olefinically unsaturated compounds are epoxidized in a manner known per se and the resulting oxirane compounds (a) are washed with water and/or aqueous alkali solution and (b) the organic value phase is separated and dried. The inventive method is characterized in that said organic value phase is subsequently treated with solid, basic aluminum oxide, aluminum hydroxide and/or alkali silicates and filtered.

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

C07D 301/32

IPC 8 full level (invention and additional information)

C07D 301/03 (2006.01); C07D 301/32 (2006.01); C07D 303/42 (2006.01)

CPC (invention and additional information)

C07D 303/42 (2013.01); C07D 301/32 (2013.01)

Citation (search report)

See references of WO 9923085A1

Designated contracting state (EPC)

BE DE FR GB NL

EPO simple patent family

DE 19748573 A1 19990506; EP 1032564 A1 20000906; US 6278003 B1 20010821; WO 9923085 A1 19990514

INPADOC legal status


2004-06-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031223

2003-09-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030812

2002-04-24 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: COGNIS DEUTSCHLAND GMBH & CO. KG

2000-09-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000422

2000-09-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE FR GB NL