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1. (NZ518975) Paper making processes using enzyme and polymer combinations

Office : New Zealand
Application Number: 518975 Application Date: 14.11.2000
Publication Number: 518975 Publication Date: 28.11.2003
Grant Number: Grant Date: 09.03.2004
Publication Kind : B
Prior PCT appl.: Application Number:PCTUS2000042119 ; Publication Number: Click to see the data
IPC:
D21H 17/22
D21H 17/33
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
21
of natural origin; Derivatives thereof
22
Proteins
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
33
Synthetic macromolecular compounds
Applicants: BUCKMAN LABORATORIES INTERNATIONAL, INC.
Inventors: Hill, Walter B
Barclay, Richard L
O'Malley, James A
Conrod, Randall W
Desjardins, John
Plourde, Roger M
Agents: AJ PARK
Priority Data: 99 166330 19.11.1999 US
Title: (EN) Paper making processes using enzyme and polymer combinations
Abstract:
(EN) Patent 518975 Methods of making paper or paperboard are described. In one method, at least one cellulytic enzyme composition and at least one cationic polymer composition are introduced to a paper making pulp at about the same time to form a treated pulp. The pulp may also be treated with at least one cationic starch. The resulting pulp is formed into a sheet of pulp. Other paper making processes are also described. A paper making apparatus is also described for carrying out the methods. Paper and paperboard made according to the methods are also described.
Also published as:
MXPA/a/2002/004886SG89166ZA2002/03739BRPI0015768EP1250487ES2350914
JP2003515002 CN1423717CA2391576PT1250487AU2001032696WO/2001/036740