EP0805234A3 - Improved papermaking process - Google Patents

Improved papermaking process Download PDF

Info

Publication number
EP0805234A3
EP0805234A3 EP97107188A EP97107188A EP0805234A3 EP 0805234 A3 EP0805234 A3 EP 0805234A3 EP 97107188 A EP97107188 A EP 97107188A EP 97107188 A EP97107188 A EP 97107188A EP 0805234 A3 EP0805234 A3 EP 0805234A3
Authority
EP
European Patent Office
Prior art keywords
slurry
quaternary salt
chloride quaternary
sheet
shear stages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97107188A
Other languages
German (de)
French (fr)
Other versions
EP0805234B1 (en
EP0805234A2 (en
Inventor
Ramasubramanyam Nagarajan
Jane B. Wong Shing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24573387&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0805234(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of EP0805234A2 publication Critical patent/EP0805234A2/en
Publication of EP0805234A3 publication Critical patent/EP0805234A3/en
Application granted granted Critical
Publication of EP0805234B1 publication Critical patent/EP0805234B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing groups
    • D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays

Abstract

The claimed invention comprises a papermaking process comprising forming an aqueous cellulosic papermaking slurry, subjecting the slurry to one or more shear stages, adding to the slurry a mineral filler prior to at least one of the shear stages, adding to the slurry after the addition of the mineral filler and prior to at least one of the shear stages an effective amount of a dispersion polymer selected from the group consisting of copolymers of acrylamide and dimethylaminoethylacrylate methyl chloride quaternary salt (DMAEA.MCQ), dimethylaminoethylmethacrylate methyl chloride quaternary salt (DMAEM.MCQ), dimethylaminoethylacrylate benzyl chloride quaternary salt (DMAEA.BCQ) and dimethylaminoethylmethacrylate benzyl chloride quaternary salt (DMAEM.BCQ) and diallyldimethylammonium chloride (DADMAC), shearing the slurry, adding a microparticle selected from the group consisting of organics such as copolymers of polyacrylic acid, inorganics such as bentonite and silica sol, draining the slurry to form a sheet, and drying the sheet to form a paper sheet.
EP19970107188 1996-05-01 1997-04-30 Papermaking process Revoked EP0805234B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64167196A 1996-05-01 1996-05-01
US641671 1996-05-01

Publications (3)

Publication Number Publication Date
EP0805234A2 EP0805234A2 (en) 1997-11-05
EP0805234A3 true EP0805234A3 (en) 1999-07-21
EP0805234B1 EP0805234B1 (en) 2002-07-03

Family

ID=24573387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970107188 Revoked EP0805234B1 (en) 1996-05-01 1997-04-30 Papermaking process

Country Status (9)

Country Link
EP (1) EP0805234B1 (en)
AU (1) AU729008B2 (en)
BR (1) BR9701967A (en)
CA (1) CA2204050C (en)
DE (1) DE69713677T2 (en)
ES (1) ES2176553T3 (en)
ID (1) ID16844A (en)
MY (1) MY123120A (en)
NO (1) NO326449B1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6238521B1 (en) 1996-05-01 2001-05-29 Nalco Chemical Company Use of diallyldimethylammonium chloride acrylamide dispersion copolymer in a papermaking process
US6235205B1 (en) 1996-10-03 2001-05-22 Cytec Technology Corp. Aqueous dispersions
US6310124B1 (en) 1996-10-03 2001-10-30 Cytec Technology, Corp. Aqueous dispersions
US6262168B1 (en) 1998-03-11 2001-07-17 Cytec Technology Corp. Aqueous dispersions
US7306700B1 (en) 1998-04-27 2007-12-11 Akzo Nobel Nv Process for the production of paper
KR100403840B1 (en) * 1998-04-27 2003-11-01 악조 노벨 엔.브이. A process for the production of paper
EP0953680A1 (en) * 1998-04-27 1999-11-03 Akzo Nobel N.V. A process for the production of paper
KR100278510B1 (en) 1998-08-24 2001-03-02 한성욱 Water-soluble polymer dispersion for fine particle retention containing colloidal silica and preparation method thereof
US6331229B1 (en) * 1999-09-08 2001-12-18 Nalco Chemical Company Method of increasing retention and drainage in papermaking using high molecular weight water-soluble anionic or monionic dispersion polymers
US6918995B2 (en) 2000-08-07 2005-07-19 Akzo Nobel N.V. Process for the production of paper
WO2003050354A1 (en) * 2001-12-12 2003-06-19 Green Technology Inc. Use of hydrophillic polymer dispersion containing a colloidal silica or an inorganic flocculant as retention and drainage aids in paper making process
AU2002310569A1 (en) * 2002-05-27 2003-12-12 Green Technology Inc. Process for preparing a dispersion polymer
KR100681327B1 (en) * 2002-10-31 2007-02-15 주식회사 오병 High concentrated liquid slurry of bentonite comprising colloidal silica and preparation process thereof
DE10307201A1 (en) * 2003-02-20 2004-05-19 Voith Paper Patent Gmbh Fiber suspension from recycled paper, for the production of writing and printing papers, has a feed of bulking agent before the final refining beating stage for improved retention
CN1323211C (en) * 2004-06-21 2007-06-27 徐清明 Paper making mineral composite retention aid and preparing process and application thereof
US8172983B2 (en) * 2007-09-12 2012-05-08 Nalco Company Controllable filler prefloculation using a dual polymer system
US8778140B2 (en) * 2007-09-12 2014-07-15 Nalco Company Preflocculation of fillers used in papermaking
US8747617B2 (en) 2007-09-12 2014-06-10 Nalco Company Controllable filler prefloculation using a dual polymer system
US8088250B2 (en) 2008-11-26 2012-01-03 Nalco Company Method of increasing filler content in papermaking
US9752283B2 (en) 2007-09-12 2017-09-05 Ecolab Usa Inc. Anionic preflocculation of fillers used in papermaking
PT106170A (en) * 2012-02-20 2013-08-20 Fapajal Fabrica De Papel Do Tojal S A PROCESS OF FIXATION OF CALCIUM CARBONATE LOADS IN CREPED LIGHT PAPERS (TISSU) WITHOUT NEGATIVE IMPACT ON PAPER CHARACTERISTICS
EP3625177B1 (en) 2017-05-16 2023-10-04 Kemira Oyj Method for producing polymer solutions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753710A (en) * 1986-01-29 1988-06-28 Allied Colloids Limited Production of paper and paperboard
US4913775A (en) * 1986-01-29 1990-04-03 Allied Colloids Ltd. Production of paper and paper board
US5178730A (en) * 1990-06-12 1993-01-12 Delta Chemicals Paper making
WO1997018351A1 (en) * 1995-11-15 1997-05-22 Eka Chemicals Ab A process for the production of paper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753710A (en) * 1986-01-29 1988-06-28 Allied Colloids Limited Production of paper and paperboard
US4913775A (en) * 1986-01-29 1990-04-03 Allied Colloids Ltd. Production of paper and paper board
US5178730A (en) * 1990-06-12 1993-01-12 Delta Chemicals Paper making
WO1997018351A1 (en) * 1995-11-15 1997-05-22 Eka Chemicals Ab A process for the production of paper

Also Published As

Publication number Publication date
ID16844A (en) 1997-11-13
CA2204050C (en) 2006-06-20
AU729008B2 (en) 2001-01-25
NO326449B1 (en) 2008-12-08
NO972022L (en) 1997-11-03
ES2176553T3 (en) 2002-12-01
BR9701967A (en) 1998-09-15
NO972022D0 (en) 1997-04-30
MY123120A (en) 2006-05-31
EP0805234B1 (en) 2002-07-03
DE69713677T2 (en) 2002-10-31
DE69713677D1 (en) 2002-08-08
AU1915897A (en) 1997-11-06
MX9703180A (en) 1998-05-31
EP0805234A2 (en) 1997-11-05
CA2204050A1 (en) 1997-11-01

Similar Documents

Publication Publication Date Title
EP0805234A3 (en) Improved papermaking process
CA2258569A1 (en) Process for producing paper and cardboard
ZA982842B (en) Production of paper board and cardboard having high dry strength
WO1999055962A3 (en) A process for the production of paper
MY129387A (en) Processes of making paper and materials for use in this
NZ335264A (en) Manufacture of paper by adding coagulated slurry containing undissolved starch particles to thinstock
CA2033265A1 (en) Paper sizing composition and sizing method
BR9407000A (en) Papermaking process
RU93049737A (en) METHOD FOR REMOVING EMULSED OIL FROM WATER OF OIL FIELD
WO2001088265A3 (en) Papermaking pulp and flocculant comprising acidic aqueous alumina sol
WO2003048454A3 (en) Papermaking process using enzyme-treated sludge, and products
EP0790351A3 (en) Papermaking process using multi-polymer retention and drainage aid
CA2388967A1 (en) Manufacture of paper and paperboard
BR0015768B1 (en) paper or cardboard making method and paper making apparatus.
CA2167803A1 (en) Manufacture of paper
ES2133659T3 (en) PAPER AND PAPER MANUFACTURING PROCEDURE SO MANUFACTURED.
BR9801457A (en) Paper making process
WO2003000985A8 (en) Manufacture of paper and paper board
ES2146609T5 (en) PAPER MANUFACTURING PROCESS.
CA2409047A1 (en) Process for making paper
PL343672A1 (en) Paper making method using a retention system comprising bentonite and a cationic galactomannan
EP0838550A3 (en) Method of retention aid addition for improved paper board production
WO2000012819A8 (en) Manufacture of paper
AU6931394A (en) Non-polluting process for increasing the wet strength of paper
MY124081A (en) Higher actives dispersion polymer to aid clarification, dewatering, and retention and drainage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FI FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FI FR GB IT SE

17P Request for examination filed

Effective date: 19990812

17Q First examination report despatched

Effective date: 20010117

RTI1 Title (correction)

Free format text: PAPERMAKING PROCESS

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FI FR GB IT SE

REF Corresponds to:

Ref document number: 69713677

Country of ref document: DE

Date of ref document: 20020808

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2176553

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030418

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20030422

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030423

Year of fee payment: 7

Ref country code: FI

Payment date: 20030423

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030430

Year of fee payment: 7

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030508

Year of fee payment: 7

26 Opposition filed

Opponent name: EKA CHEMICALS AB

Effective date: 20030401

26 Opposition filed

Opponent name: BASF AKTIENGESELLSCHAFTPATENTE, MARKEN UND LIZENZE

Effective date: 20030401

Opponent name: EKA CHEMICALS AB

Effective date: 20030401

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20040208

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20040208

REG Reference to a national code

Ref country code: SE

Ref legal event code: ECNC

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO