GB765897A - Production of resin-impregnated porous bodies - Google Patents

Production of resin-impregnated porous bodies

Info

Publication number
GB765897A
GB765897A GB34719/54A GB3471954A GB765897A GB 765897 A GB765897 A GB 765897A GB 34719/54 A GB34719/54 A GB 34719/54A GB 3471954 A GB3471954 A GB 3471954A GB 765897 A GB765897 A GB 765897A
Authority
GB
United Kingdom
Prior art keywords
resin
nitrogen compound
phenol
basic
gaseous
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
GB34719/54A
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.)
Dow Chemical Co
Original Assignee
Dow 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
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB765897A publication Critical patent/GB765897A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/28—Nitrogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea

Landscapes

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

Abstract

765,897. Proofing against chemicals; treating wood; resin-impregnated paper. DOW CHEMICAL CO. Nov. 30, 1954 [Jan. 25, 1954], No. 34719/54. Classes 96 and 140. A method of resinifying a solid porous body comprises permeating the body with a gaseous strongly basic nitrogen compound, impregnating the body, containing the basic nitrogen compound, with a non-resinous liquid mixture containing an aldehyde and another constituent or other constituents and capable of undergoing a chemical condensation reaction in the presence of the basic nitrogen compound as a condensation catalyst to form a solid resin, and maintaining the impregnated solid porous body at a reaction temperature until a resin is formed therein. The treatment renders the bodies resistant to chemicals, e.g. acid solutions and acid fumes. Specified basic nitrogen compounds are ammonia, methylamine and dimethylamine, which may be used in admixture with inert gases or vapours such as nitrogen or water vapour. Specified resin-forming liquids are solutions of phenol, cresol, chlorophenol and urea together with formaldehyde; of furfuraldehyde and phenol; and of furfuryl alcohol, phenol and formaldehyde. The solvent may be water, methanol or ethanol. Specified solid porous bodies are wood, paper, cardboard, concrete and bricks. Prior to the application of the basic gaseous nitrogen compound, air may be removed from the solid porous body. Impregnation with the basic gaseous nitrogen compound and the resin-forming liquid may be carried out under pressure. The body, impregnated with the resin-forming liquid, may be maintained under pressure with air, nitrogen or other inert gas during the resin-forming reaction and may also be heated. Examples describe the treatment of wood with gaseous ammonia and an aqueous solution of phenol and formaldehyde. Wooden fan propeller blades so resinified are resistant to hydrogen chloride fumes.
GB34719/54A 1954-01-25 1954-11-30 Production of resin-impregnated porous bodies Expired GB765897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US765897XA 1954-01-25 1954-01-25

Publications (1)

Publication Number Publication Date
GB765897A true GB765897A (en) 1957-01-16

Family

ID=22132994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34719/54A Expired GB765897A (en) 1954-01-25 1954-11-30 Production of resin-impregnated porous bodies

Country Status (1)

Country Link
GB (1) GB765897A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102241041A (en) * 2011-07-14 2011-11-16 湖南万森木业有限公司 Method for preparing fast-growing poplar laminated wood

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102241041A (en) * 2011-07-14 2011-11-16 湖南万森木业有限公司 Method for preparing fast-growing poplar laminated wood

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