Global Patent Index - EP 1098911 A1

EP 1098911 A1 2001-05-16 - EXTRACTION OF HEMICELLULOSIC MATERIALS

Title (en)

EXTRACTION OF HEMICELLULOSIC MATERIALS

Title (de)

GEWINNUNG VON HEMICELLULOSEHALTIGEN MATERIALIEN

Title (fr)

EXTRACTION DE MATIERE HEMICELLULOSIQUE

Publication

EP 1098911 A1 (EN)

Application

EP 99933962 A

Priority

  • GB 9815200 A
  • US 9915811 W

Abstract (en)

[origin: WO0004053A1] Hemicelluloses may be extracted by alkaline peroxide treatment without removal of ferulate residues. Hemicelluloses prepared in this way retain their ability to gel. Such gelling hemicelluloses may be extracted with a number of different oxidizing species including hydrogen peroxide anion, hydrogen peroxide radical, hydroxyl radical, superoxide radical and oxide radical. A process has thus been developed for producing a hemicellulose gel that may be carried out at cold temperatures, thus facilitating enzymic co-processing, and that is high yielding and produces a gel that is light in color.

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

C08B 37/14; C08B 37/06

IPC 8 full level (invention and additional information)

C08B 37/00 (2006.01); C12P 19/04 (2006.01)

CPC (invention and additional information)

C12P 19/04 (2013.01); C08B 37/0018 (2013.01); C08B 37/0045 (2013.01)

Citation (search report)

See references of WO 0004053A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 0004053 A1 20000127; AU 4990199 A 20000207; CA 2335642 A1 20000127; CN 1309667 A 20010822; EP 1098911 A1 20010516; GB 9815200 D0 19980909; ZA 200100094 B 20020104

INPADOC legal status


2004-01-28 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030528

2002-02-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011221

2001-10-17 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: CAMBRIDGE BIOPOLYMERS LIMITED

2001-05-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001218

2001-05-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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