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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 1077282 A1 20010221 - Improved chemical pulping process

Title (en)

Improved chemical pulping process

Title (de)

Chemisches Aufschlussverfahren

Title (fr)

Procédé de mise en pâte chimique

Publication

EP 1077282 A1 20010221 (EN)

Application

EP 00117065 A 20000809

Priority

US 37342599 A 19990816

Abstract (en)

The use of an oxyalkylene-modified organopolysiloxane in combination with an alkylpolyglycoside as chemical pulping additives is disclosed. The pulping additives utilized in accordance with the chemical pulping process of the invention improve the physical properties of wood pulp and products produced therefrom.

IPC 1-7

D21C 3/22

IPC 8 full level

D21C 3/02 (2006.01); D21C 3/22 (2006.01)

CPC (source: EP)

D21C 3/222 (2013.01)

Citation (search report)

[DA] WO 9641915 A1 19961227 - HENKEL CORP [US]
[A] US 5380464 A 19950110 - MCGEE JAMES B [US], et al

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1077282 A1 20010221; JP 2001064889 A 20010313

DOCDB simple family (application)

EP 00117065 A 20000809; JP 2000246480 A 20000815