GB368359A - Improvements in or relating to varnishes and like coating materials - Google Patents

Improvements in or relating to varnishes and like coating materials

Info

Publication number
GB368359A
GB368359A GB3264630A GB3264630A GB368359A GB 368359 A GB368359 A GB 368359A GB 3264630 A GB3264630 A GB 3264630A GB 3264630 A GB3264630 A GB 3264630A GB 368359 A GB368359 A GB 368359A
Authority
GB
United Kingdom
Prior art keywords
acid
varnishes
formalin
phenol
dissolved
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
GB3264630A
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.)
TADAE SHONO
Nippon Paint Co Ltd
Original Assignee
TADAE SHONO
Nippon Paint Co 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 TADAE SHONO, Nippon Paint Co Ltd filed Critical TADAE SHONO
Priority to GB3264630A priority Critical patent/GB368359A/en
Publication of GB368359A publication Critical patent/GB368359A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09D161/06—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
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
    • C08G8/10—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Varnishes and like coating materials are manufactured by condensing a phenol with formalin at normal temperature and pressure in the presence of alkali for one to three weeks after which the mixture is neutralized with mineral acid and further addition of acid made, the neutralized liquid and the acid being preheated to about 40 DEG C., the condensation then being continued in the presence of acid at a raised temperature for about twenty minutes, the product quickly cooled, e.g. by introducing it into ice water, pulverized, washed, dried, and dissolved in a solvent. Previous to the actual coating operation an acid is added to the solution. In an example, phenol is condensed with formalin using caustic soda in the first stage and hydrochloric acid in the second. The product is dissolved in a mixture of equal quantities of ethyl and butyl alcohols, the concentration of the solution being 40 per cent, and before being applied to a surface the varnish is acidified with alcoholic hydrochloric or sulphuric acid. Cresols are also specified as starting materials.
GB3264630A 1930-10-30 1930-10-30 Improvements in or relating to varnishes and like coating materials Expired GB368359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3264630A GB368359A (en) 1930-10-30 1930-10-30 Improvements in or relating to varnishes and like coating materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3264630A GB368359A (en) 1930-10-30 1930-10-30 Improvements in or relating to varnishes and like coating materials

Publications (1)

Publication Number Publication Date
GB368359A true GB368359A (en) 1932-02-29

Family

ID=10341872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3264630A Expired GB368359A (en) 1930-10-30 1930-10-30 Improvements in or relating to varnishes and like coating materials

Country Status (1)

Country Link
GB (1) GB368359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748697C (en) * 1935-02-01 1944-11-09 Hermann Frenkel Fa Method of painting wood using phenol-formaldehyde synthetic resin paints

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748697C (en) * 1935-02-01 1944-11-09 Hermann Frenkel Fa Method of painting wood using phenol-formaldehyde synthetic resin paints

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