GB567175A - Improvements in or relating to the repair of sheet materials - Google Patents

Improvements in or relating to the repair of sheet materials

Info

Publication number
GB567175A
GB567175A GB1861643A GB1861643A GB567175A GB 567175 A GB567175 A GB 567175A GB 1861643 A GB1861643 A GB 1861643A GB 1861643 A GB1861643 A GB 1861643A GB 567175 A GB567175 A GB 567175A
Authority
GB
United Kingdom
Prior art keywords
parts
per cent
accelerator
phenol
sulphonic acid
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
GB1861643A
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.)
CELLOMOLD Ltd
Original Assignee
CELLOMOLD Ltd
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 CELLOMOLD Ltd filed Critical CELLOMOLD Ltd
Priority to GB1861643A priority Critical patent/GB567175A/en
Publication of GB567175A publication Critical patent/GB567175A/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
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G1/00—Machines or devices for removing knots or other irregularities or for filling-up holes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A cement for repairing damaged sheet material such as shaped plywood articles, as boats or the like, comprises an accelerator hardening phenol-aldehyde or urea-aldehyde resin, and the accelerating agent may be a mineral or organic acid, e.g. benzene sulphonic acid. It may be obtained by mixing 100 parts of phenol with 190 parts of 40 per cent formaldehyde and 15 parts sodium carbonate, boiling the mixture under reflux conditions for two hours and distilling under reduced pressure to a viscosity of 650-950 centre-strokes. After a period of about three months, a hardener or accelerator, e.g. benzene sulphonic acid, is added to the extent of 5-10 per cent.
GB1861643A 1943-11-09 1943-11-09 Improvements in or relating to the repair of sheet materials Expired GB567175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1861643A GB567175A (en) 1943-11-09 1943-11-09 Improvements in or relating to the repair of sheet materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1861643A GB567175A (en) 1943-11-09 1943-11-09 Improvements in or relating to the repair of sheet materials

Publications (1)

Publication Number Publication Date
GB567175A true GB567175A (en) 1945-01-31

Family

ID=10115501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1861643A Expired GB567175A (en) 1943-11-09 1943-11-09 Improvements in or relating to the repair of sheet materials

Country Status (1)

Country Link
GB (1) GB567175A (en)

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