FI870072A - CONTROL AV HARTSFLAECKAR. - Google Patents

CONTROL AV HARTSFLAECKAR. Download PDF

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Publication number
FI870072A
FI870072A FI870072A FI870072A FI870072A FI 870072 A FI870072 A FI 870072A FI 870072 A FI870072 A FI 870072A FI 870072 A FI870072 A FI 870072A FI 870072 A FI870072 A FI 870072A
Authority
FI
Finland
Prior art keywords
epihalohydrin
control
diepoxide
functionality
respect
Prior art date
Application number
FI870072A
Other languages
Finnish (fi)
Other versions
FI88814C (en
FI870072A0 (en
FI88814B (en
Inventor
Thord Hassler
Original Assignee
Grace W R 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 Grace W R Ab filed Critical Grace W R Ab
Publication of FI870072A0 publication Critical patent/FI870072A0/en
Publication of FI870072A publication Critical patent/FI870072A/en
Application granted granted Critical
Publication of FI88814B publication Critical patent/FI88814B/en
Publication of FI88814C publication Critical patent/FI88814C/en

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Epoxy Resins (AREA)

Abstract

A method for the control of pitch in an aqueous system used in pulp or paper making is disclosed which comprises adding to the system, or to the pulp making or paper making machinery, a water soluble polymer derived from (a) an epihalohydrin, a diepoxide or a precursor of an epihalohydrin or diepoxide, (b) an alkyl amine having a functionality with respect to an epihalohydrin of 2 and (c) an amine which has a functionality with respect to an epihalohydrin greater than 2 and which does not possess any carbonyl groups.
FI870072A 1986-01-09 1987-01-08 FOERFARANDE FOER BEKAEMPNING AV HARTS FI88814C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8600506A GB2186895B (en) 1986-01-09 1986-01-09 Pitch control aid
GB8600506 1986-01-09

Publications (4)

Publication Number Publication Date
FI870072A0 FI870072A0 (en) 1987-01-08
FI870072A true FI870072A (en) 1987-07-10
FI88814B FI88814B (en) 1993-03-31
FI88814C FI88814C (en) 1993-07-12

Family

ID=10591145

Family Applications (1)

Application Number Title Priority Date Filing Date
FI870072A FI88814C (en) 1986-01-09 1987-01-08 FOERFARANDE FOER BEKAEMPNING AV HARTS

Country Status (8)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467667B (en) * 1988-08-11 1992-08-24 Grace W R & Co PROCEDURES CONCERN REGULATION OF PRODUCTION CONTROLLING MICROBIOLOGICAL PROVISIONS ON PAPER MANUFACTURING EQUIPMENT
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
AR247436A1 (en) * 1988-09-16 1994-12-29 Dearborn Chemical Company Ltd Controlling deposits on paper machine felts and the like
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 (en) * 2018-11-30 2020-12-01 美商Ｂｌ科技公司 Fouling abatement for coker heaters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248353A (en) * 1963-05-17 1966-04-26 American Cyanamid Co Alkylene polyamine resin
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
US4093605A (en) * 1975-01-24 1978-06-06 Wolff Walsrode Aktiengesellschaft Auxiliary agent for improving retention, drainage and treatment
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 (en) * 1980-11-28 1983-08-02 Margaret J. Molnar Amine-epichlorohydrin polymers for pitch control

Also Published As

Publication number Publication date
ATE59068T1 (en) 1990-12-15
GB8600506D0 (en) 1986-02-12
JPH07113200B2 (en) 1995-12-06
EP0232015B1 (en) 1990-12-12
EP0232015A1 (en) 1987-08-12
FI88814C (en) 1993-07-12
GB2186895B (en) 1989-11-01
FI870072A0 (en) 1987-01-08
FI88814B (en) 1993-03-31
ES2019376B3 (en) 1991-06-16
DE3766623D1 (en) 1991-01-24
GB2186895A (en) 1987-08-26
JPS62223394A (en) 1987-10-01
CA1306570C (en) 1992-08-18

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Legal Events

Date Code Title Description
BB Publication of examined application
PC Transfer of assignment of patent

Owner name: BETZDEARBORN INC.

FG Patent granted

Owner name: BETZDEARBORN, INC.

MA Patent expired