GB2186895B - Pitch control aid - Google Patents

Pitch control aid

Info

Publication number
GB2186895B
GB2186895B GB8600506A GB8600506A GB2186895B GB 2186895 B GB2186895 B GB 2186895B GB 8600506 A GB8600506 A GB 8600506A GB 8600506 A GB8600506 A GB 8600506A GB 2186895 B GB2186895 B GB 2186895B
Authority
GB
United Kingdom
Prior art keywords
epihalohydrin
pitch control
control aid
diepoxide
functionality
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.)
Expired
Application number
GB8600506A
Other languages
English (en)
Other versions
GB2186895A (en
GB8600506D0 (en
Inventor
Thord Gustav Gunnar Hassler
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.)
WR Grace AB
Original Assignee
WR Grace AB
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
Application filed by WR Grace AB filed Critical WR Grace AB
Priority to GB8600506A priority Critical patent/GB2186895B/en
Publication of GB8600506D0 publication Critical patent/GB8600506D0/en
Priority to CA000526936A priority patent/CA1306570C/fr
Priority to FI870072A priority patent/FI88814C/fi
Priority to JP62001956A priority patent/JPH07113200B2/ja
Priority to AT87300212T priority patent/ATE59068T1/de
Priority to ES87300212T priority patent/ES2019376B3/es
Priority to DE8787300212T priority patent/DE3766623D1/de
Priority to EP87300212A priority patent/EP0232015B1/fr
Publication of GB2186895A publication Critical patent/GB2186895A/en
Priority to US07/368,972 priority patent/US5223097A/en
Application granted granted Critical
Publication of GB2186895B publication Critical patent/GB2186895B/en
Priority to US08/440,299 priority patent/US5626720A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Liquid Crystal Substances (AREA)
  • Valve Device For Special Equipments (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Epoxy Resins (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB8600506A 1986-01-09 1986-01-09 Pitch control aid Expired GB2186895B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB8600506A GB2186895B (en) 1986-01-09 1986-01-09 Pitch control aid
FI870072A FI88814C (fi) 1986-01-09 1987-01-08 Foerfarande foer bekaempning av harts
CA000526936A CA1306570C (fr) 1986-01-09 1987-01-08 Additif anti-poix pour la fabrication du papier
JP62001956A JPH07113200B2 (ja) 1986-01-09 1987-01-09 ピッチ抑制方法
AT87300212T ATE59068T1 (de) 1986-01-09 1987-01-09 Hilfsmittel zur harzkontrolle.
ES87300212T ES2019376B3 (es) 1986-01-09 1987-01-09 Sistema regulador de la pez.
DE8787300212T DE3766623D1 (de) 1986-01-09 1987-01-09 Hilfsmittel zur harzkontrolle.
EP87300212A EP0232015B1 (fr) 1986-01-09 1987-01-09 Agent auxiliaire pour le contrôle de la poix
US07/368,972 US5223097A (en) 1986-01-09 1989-06-20 Method for controlling pitch on a paper-making machine
US08/440,299 US5626720A (en) 1986-01-09 1995-05-19 Method for controlling pitch on a papermaking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8600506A GB2186895B (en) 1986-01-09 1986-01-09 Pitch control aid

Publications (3)

Publication Number Publication Date
GB8600506D0 GB8600506D0 (en) 1986-02-12
GB2186895A GB2186895A (en) 1987-08-26
GB2186895B true GB2186895B (en) 1989-11-01

Family

ID=10591145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8600506A Expired GB2186895B (en) 1986-01-09 1986-01-09 Pitch control aid

Country Status (8)

Country Link
EP (1) EP0232015B1 (fr)
JP (1) JPH07113200B2 (fr)
AT (1) ATE59068T1 (fr)
CA (1) CA1306570C (fr)
DE (1) DE3766623D1 (fr)
ES (1) ES2019376B3 (fr)
FI (1) FI88814C (fr)
GB (1) GB2186895B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467667B (sv) * 1988-08-11 1992-08-24 Grace W R & Co Foerfarande foer reglering av produktionsstoerande mikrobiologiska avsaettningar paa papperstillverkningsutrustning
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture
JP2618496B2 (ja) * 1988-09-16 1997-06-11 グレイス・ディアーボーソ・インコーポレーテッド 製紙機フエルト等への析出防止法
US4997523A (en) * 1990-06-20 1991-03-05 Betz Panerchem, Inc. Method for effectively breaking up latex-coated paper during pulping to decrease the potential for white pitch deposition
GB2251868B (en) * 1990-12-24 1994-07-27 Grace W R & Co Pitch control
TW202043331A (zh) * 2018-11-30 2020-12-01 美商Ｂｌ科技公司 焦化加熱器之積垢減量

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014667A (en) * 1963-05-17 1965-12-31 American Cyanamid Co Alkylene polyamine resins
GB1495363A (en) * 1975-01-24 1977-12-14 Wolff Walsrode Ag Polyamide auxiliary agent for retention drainage and treatment especially in papermaking and use of the auxiliary agent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28808E (en) * 1972-02-04 1976-05-11 American Cyanamid Company Polyquaternary flocculants
US3855299A (en) * 1973-06-11 1974-12-17 Grace W R & Co Water soluble reaction product of epihalohydrin and alkylamines
US4250269A (en) * 1979-11-26 1981-02-10 Buckman Laboratories, Inc. Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic vinyl-addition polymers, and nonionic and/or cationic surfactants
CA1150914A (fr) * 1980-11-28 1983-08-02 Margaret J. Molnar Polymeres amine-epichlorhydrine servant a controler le pitch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014667A (en) * 1963-05-17 1965-12-31 American Cyanamid Co Alkylene polyamine resins
GB1495363A (en) * 1975-01-24 1977-12-14 Wolff Walsrode Ag Polyamide auxiliary agent for retention drainage and treatment especially in papermaking and use of the auxiliary agent

Also Published As

Publication number Publication date
DE3766623D1 (de) 1991-01-24
CA1306570C (fr) 1992-08-18
FI870072A0 (fi) 1987-01-08
ATE59068T1 (de) 1990-12-15
GB2186895A (en) 1987-08-26
ES2019376B3 (es) 1991-06-16
GB8600506D0 (en) 1986-02-12
JPH07113200B2 (ja) 1995-12-06
FI88814C (fi) 1993-07-12
FI870072A (fi) 1987-07-10
JPS62223394A (ja) 1987-10-01
FI88814B (fi) 1993-03-31
EP0232015B1 (fr) 1990-12-12
EP0232015A1 (fr) 1987-08-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20060108