FI66397C - Foerfarande foer framstaellning av cellulosakarboxylsyraestrarfraon dissolvingmassa - Google Patents

Foerfarande foer framstaellning av cellulosakarboxylsyraestrarfraon dissolvingmassa Download PDF

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Publication number
FI66397C
FI66397C FI810887A FI810887A FI66397C FI 66397 C FI66397 C FI 66397C FI 810887 A FI810887 A FI 810887A FI 810887 A FI810887 A FI 810887A FI 66397 C FI66397 C FI 66397C
Authority
FI
Finland
Prior art keywords
pulp
minutes
treatment
heat treatment
process according
Prior art date
Application number
FI810887A
Other languages
English (en)
Finnish (fi)
Other versions
FI810887L (fi
FI66397B (fi
Inventor
Vacheslav M Yasnovsky
Donald M Macdonald
Original Assignee
Int Paper 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
Application filed by Int Paper Co filed Critical Int Paper Co
Publication of FI810887L publication Critical patent/FI810887L/fi
Application granted granted Critical
Publication of FI66397B publication Critical patent/FI66397B/fi
Publication of FI66397C publication Critical patent/FI66397C/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/02—Rendering cellulose suitable for esterification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
FI810887A 1980-03-24 1981-03-23 Foerfarande foer framstaellning av cellulosakarboxylsyraestrarfraon dissolvingmassa FI66397C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/132,912 US4385172A (en) 1980-03-24 1980-03-24 Prevention of hornification of dissolving pulp
US13291280 1980-03-24

Publications (3)

Publication Number Publication Date
FI810887L FI810887L (fi) 1981-09-25
FI66397B FI66397B (fi) 1984-06-29
FI66397C true FI66397C (fi) 1984-10-10

Family

ID=22456143

Family Applications (1)

Application Number Title Priority Date Filing Date
FI810887A FI66397C (fi) 1980-03-24 1981-03-23 Foerfarande foer framstaellning av cellulosakarboxylsyraestrarfraon dissolvingmassa

Country Status (5)

Country Link
US (1) US4385172A (it)
CA (1) CA1161035A (it)
FI (1) FI66397C (it)
IT (1) IT1144322B (it)
NO (1) NO810981L (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260517A (ja) * 1984-06-08 1985-12-23 Daicel Chem Ind Ltd 食品及び薬剤用組成物
US4718981A (en) * 1985-08-23 1988-01-12 International Paper Company Bleached kraft paperboard by densification and heat treatment
US4718982A (en) * 1985-08-23 1988-01-12 International Paper Company Densification and heat treatment of paperboard produced from SCMP and other sulfite pulps
US4818342A (en) * 1985-08-23 1989-04-04 International Paper Company Heat treatment of paper products
US5385640A (en) * 1993-07-09 1995-01-31 Microcell, Inc. Process for making microdenominated cellulose
US5487419A (en) * 1993-07-09 1996-01-30 Microcell, Inc. Redispersible microdenominated cellulose
JP4509239B2 (ja) * 1998-11-19 2010-07-21 ダイセル化学工業株式会社 セルローストリアセテート及びその製造方法
PT105422A (pt) 2010-12-09 2012-06-11 Univ Aveiro Pastas celulósicas modificadas, método de preparação por processamento por alta pressão e respectivas aplicações

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670156A (en) * 1925-03-05 1928-05-15 Jr Wallace H Howell Method for cooking wood to form chemical paper stock
NL23100C (it) * 1926-04-07
US1716422A (en) * 1927-04-23 1929-06-11 Eastman Kodak Co Process of making organic esters of cellulose
GB332607A (en) * 1929-04-17 1930-07-17 Celanese Corp Improvements in or relating to the treatment of cellulosic materials and the production of cellulose esters therefrom
US2105498A (en) * 1936-06-27 1938-01-18 Rainier Pulp & Paper Company Acetylation of wood pulp
US2415949A (en) * 1944-12-05 1947-02-18 Rayonier Inc Process for the activation of wood pulp prior to esterification
US2591106A (en) * 1947-07-24 1952-04-01 Lionel M Sutherland Process of making paper pulps
GB714163A (en) * 1950-05-18 1954-08-25 Celanese Corp Improvements in or relating to the preparation of organic acid esters of cellulose
US2631144A (en) * 1950-10-23 1953-03-10 Du Pont Activation of cellulose
BE563841A (it) * 1956-04-26
NO115278B (it) * 1962-03-03 1968-09-09 Kamyr Ab
US3320022A (en) * 1964-04-27 1967-05-16 Fmc Corp Method for the continuous vapor phase acetylation of cellulose fiber
SE389520B (sv) * 1973-09-03 1976-11-08 Kamyr Ab Apparat for kontinuerlig utvinning av hydrolysat ur finfordelat fibermaterial

Also Published As

Publication number Publication date
NO810981L (no) 1981-09-25
US4385172A (en) 1983-05-24
IT1144322B (it) 1986-10-29
FI810887L (fi) 1981-09-25
CA1161035A (en) 1984-01-24
FI66397B (fi) 1984-06-29
IT8167398A0 (it) 1981-03-23

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Legal Events

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MM Patent lapsed

Owner name: INTERNATIONAL PAPER COMPANY