Global Patent Index - EP 1070174 A1

EP 1070174 A1 2001-01-24 - EUCALYPTUS BIOKRAFT PULPING PROCESS

Title (en)

EUCALYPTUS BIOKRAFT PULPING PROCESS

Title (de)

BIOLOGISCHES KRAFT-AUFSCHLUSSVERFAHREN VON EUCALYPTUS

Title (fr)

PROCEDE BIOLOGIQUE KRAFT A L'EUCALYPTUS

Publication

EP 1070174 A1 (EN)

Application

EP 98914242 A

Priority

US 9805101 W

Abstract (en)

[origin: WO9946444A1] In a new process for preparing pulped wood chips for paper making, chips from a hardwood such as eucalyptus are inoculated with a living culture of one or more white rot fungi. The fungi propagate throughout the body of the wood chip, selectively attacking the lignin of the wood without harming the cellulosic fibers. Subsequent kraft pulping with standard chemicals results in less chemical usage, reduced utilization of energy, improved strength, and reduced cooking time.

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

D21H 25/02

IPC 8 full level (invention and additional information)

D21C 1/00 (2006.01); D21C 5/00 (2006.01)

CPC (invention and additional information)

D21C 1/00 (2013.01); D21C 5/005 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9946444 A1 19990916; WO 9946444 A8 20000427; AU 6864598 A 19990927; AU 740947 B2 20011115; BR 9815726 A 20040629; EP 1070174 A1 20010124; EP 1070174 A4 20010725

INPADOC legal status


2008-01-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20070703

2007-02-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20070123

2001-07-25 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010613

2001-07-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2001-07-25 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7D 21H 25/02 A, 7D 21C 3/02 B, 7D 21C 5/00 B, 7D 21H 23/00 B

2001-01-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001012

2001-01-24 [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 LU MC NL PT SE