GB1324949A - Manufacture of pressed goods comprising particulate lignin- containing material - Google Patents

Manufacture of pressed goods comprising particulate lignin- containing material

Info

Publication number
GB1324949A
GB1324949A GB3843071A GB3843071A GB1324949A GB 1324949 A GB1324949 A GB 1324949A GB 3843071 A GB3843071 A GB 3843071A GB 3843071 A GB3843071 A GB 3843071A GB 1324949 A GB1324949 A GB 1324949A
Authority
GB
United Kingdom
Prior art keywords
lignin
pressing
articles
hydrazine
aug
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
GB3843071A
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.)
Neste Oyj
Original Assignee
Neste Oyj
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 Neste Oyj filed Critical Neste Oyj
Publication of GB1324949A publication Critical patent/GB1324949A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

1324949 Hot pressing lignin-containing articles NESTE OY 17 Aug 1971 [21 Aug 1970] 38430/70 Heading B5A [Also in Division D2] Particulate materials containing lignin are impregnated with hydrazine and heated and pressed to form articles e.g. boards or shaped articles. The lignin containing materials may be sawdust, wood shavings and chips, peat, grass, and sheets precipitated and dried from aqueous dispersions of groundwood, newsprint, chemimechanical pulp, semichemical sulphite and sulphate pulp. The hydrazine may be in solution and the impregnated material dried before pressing. Sheets of different hardness may be laminated during pressing. Quantities and pressing conditions are given.
GB3843071A 1970-08-21 1971-08-17 Manufacture of pressed goods comprising particulate lignin- containing material Expired GB1324949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI230570A FI47467C (en) 1970-08-21 1970-08-21 Process for the production of press products from lignin-containing atomizing materials

Publications (1)

Publication Number Publication Date
GB1324949A true GB1324949A (en) 1973-07-25

Family

ID=8506923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3843071A Expired GB1324949A (en) 1970-08-21 1971-08-17 Manufacture of pressed goods comprising particulate lignin- containing material

Country Status (10)

Country Link
JP (1) JPS5016395B1 (en)
AT (1) AT315504B (en)
BR (1) BR7105444D0 (en)
CA (1) CA963223A (en)
DK (1) DK129053B (en)
FI (1) FI47467C (en)
FR (1) FR2104576A5 (en)
GB (1) GB1324949A (en)
NO (1) NO130631C (en)
SE (1) SE360598B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI502142B (en) * 2012-05-17 2015-10-01 Wistron Corp Hinge mechanism with easy assembly and electronic device therewith
CN111877039A (en) * 2020-08-05 2020-11-03 玖龙纸业（太仓）有限公司 Mechanical pulp production system and production process using wood shavings as raw materials

Also Published As

Publication number Publication date
FR2104576A5 (en) 1972-04-14
BR7105444D0 (en) 1973-04-19
JPS5016395B1 (en) 1975-06-12
SE360598B (en) 1973-10-01
CA963223A (en) 1975-02-25
FI47467C (en) 1973-12-10
NO130631B (en) 1974-10-07
FI47467B (en) 1973-08-31
AT315504B (en) 1974-05-27
DK129053B (en) 1974-08-12
NO130631C (en) 1975-01-15
DE2141404B2 (en) 1977-04-14
DE2141404A1 (en) 1972-02-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee