Global Patent Index - EP 1054716 A1

EP 1054716 A1 2000-11-29 - PACKED CAPILLARIES, ESPECIALLY FOR ENANTIOMERIC SEPARATION

Title (en)

PACKED CAPILLARIES, ESPECIALLY FOR ENANTIOMERIC SEPARATION

Title (de)

GEPACKTE KAPILLAREN, INSBESONDERE FÜR DIE ENANTIOMERENTRENNUNG

Title (fr)

CAPILLAIRES GARNIS, EN PARTICULIER POUR LA SEPARATION ENANTIOMERE

Publication

EP 1054716 A1 (DE)

Application

EP 99914449 A

Priority

  • DE 19807063 A
  • EP 9900844 W

Abstract (en)

[origin: DE19807063A1] In the production of capillaries of a constant inner diameter over their whole length, where only an insignificant part of the particle sorbent bed has to be heated, the sorbent bed is defined by a solidified zone, formed by heat. Independent claims are also included for: (a) packed capillaries containing a chiral sorbent bed; and (b) the production of the packed capillaries, where a conventional silicate fused capillary is closed at one end with a frit. A reservoir is secured at the other end of the capillary. The capillary is filled with a prepared suspension of sorbent particle in a solvent, taken by pressure filtration from a reservoir. The solvent is exchanged for water, and a narrow zone of capillary is heated at both ends of the sorbent bed to form a frit on both sides of the bed.

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

B01D 15/08; G01N 30/00

IPC 8 full level (invention and additional information)

B01D 15/08 (2006.01); B01J 20/281 (2006.01); B01J 20/283 (2006.01); B01J 20/291 (2006.01); C07B 57/00 (2006.01); G01N 30/02 (2006.01); G01N 30/60 (2006.01); G01N 30/88 (2006.01); G01N 30/56 (2006.01)

CPC (invention and additional information)

G01N 30/6078 (2013.01); B01D 15/3833 (2013.01); C07B 57/00 (2013.01); B01D 15/34 (2013.01); B01D 15/3885 (2013.01); G01N 30/02 (2013.01); G01N 30/6052 (2013.01); G01N 2030/562 (2013.01)

Combination set (CPC)

G01N 30/02 + B01D 15/3833

Citation (search report)

See references of WO 9942192A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

DE 19807063 A1 19990826; EP 1054716 A1 20001129; JP 2002503823 A 20020205; WO 9942192 A1 19990826; WO 9942192 A8 19991014

INPADOC legal status


2003-12-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030506

2002-03-20 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020204

2000-11-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000725

2000-11-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB