GB765051A - Improving the properties of kenya cedar and other woods - Google Patents

Improving the properties of kenya cedar and other woods

Info

Publication number
GB765051A
GB765051A GB8513/55A GB851355A GB765051A GB 765051 A GB765051 A GB 765051A GB 8513/55 A GB8513/55 A GB 8513/55A GB 851355 A GB851355 A GB 851355A GB 765051 A GB765051 A GB 765051A
Authority
GB
United Kingdom
Prior art keywords
wood
mono
ether
polyethylene glycol
water
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
GB8513/55A
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 GB765051A publication Critical patent/GB765051A/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
    • 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
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/04—Combined bleaching or impregnating and drying of wood
    • 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

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

765,051. Treating wood. DOW CHEMICAL CO. March 23, 1955 [April 29, 1954], No. 8513/55. Class 140. A method for improving the cutting characteristics of wood, without materially softening it, comprises subjecting the wood to full cell impregnation with a water-miscible solution of from 1 to 25 per cent by weight of a compound consisting of polyethylene glycol, having a molecular weight of at least 6000 and a melting point of at least 60‹ C., or a water-soluble ether or ester thereof, and drying the impregnated wood slowly. In making pencils from Kenya cedar the wood is cut into pencil slats which may then be impregnated at room temperature' for periods of from 4 hours to 2 days. The slats may then be drained for several days and are then dried to the required moisture content in the course of from 4 to 20 days. Specified esters and ethers of polyethylene glycol are the mono- and di-laurates, oleates and stearates, and the mono-allyl ether, the mono-sec. butylphenyl ether and the monoethyl ether. Specified solvents are water, ethanol and acetone. There may be added to the solution of the polyethylene glycol compound a wood hardener, soluble in the same medium, such as glucose, fructose, lactose, phenol formaldehyde resins, urea- or melamine-aldehyde resins, toluene sulphonamide aldehyde resins, polyacrylamide, polyacrylic acid, polyvinylalcohol and polyvinylsulphonic acid. Specification 352,042, [Group III], is referred to.
GB8513/55A 1954-04-29 1955-03-23 Improving the properties of kenya cedar and other woods Expired GB765051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US765051XA 1954-04-29 1954-04-29

Publications (1)

Publication Number Publication Date
GB765051A true GB765051A (en) 1957-01-02

Family

ID=22132437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8513/55A Expired GB765051A (en) 1954-04-29 1955-03-23 Improving the properties of kenya cedar and other woods

Country Status (1)

Country Link
GB (1) GB765051A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612304A (en) * 2013-11-18 2014-03-05 浙江理工大学 Formula, preparation method and application of pencil board softener
CN106217567A (en) * 2016-07-21 2016-12-14 三江县善茶轩工艺品有限公司 The preparation method of bamboo strip mat
CN106217559A (en) * 2016-07-21 2016-12-14 三江县善茶轩工艺品有限公司 The preparation method of bamboo craftwork product braiding bamboo chip
CN112223466A (en) * 2020-10-15 2021-01-15 东易日盛智能家居科技有限公司 Method for treating plate without formaldehyde release

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612304A (en) * 2013-11-18 2014-03-05 浙江理工大学 Formula, preparation method and application of pencil board softener
CN103612304B (en) * 2013-11-18 2016-03-16 浙江理工大学 A kind of formula of pencil board tenderizer, preparation method and application
CN106217567A (en) * 2016-07-21 2016-12-14 三江县善茶轩工艺品有限公司 The preparation method of bamboo strip mat
CN106217559A (en) * 2016-07-21 2016-12-14 三江县善茶轩工艺品有限公司 The preparation method of bamboo craftwork product braiding bamboo chip
CN112223466A (en) * 2020-10-15 2021-01-15 东易日盛智能家居科技有限公司 Method for treating plate without formaldehyde release

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