GB773611A - Resol resins - Google Patents

Resol resins

Info

Publication number
GB773611A
GB773611A GB2624154A GB2624154A GB773611A GB 773611 A GB773611 A GB 773611A GB 2624154 A GB2624154 A GB 2624154A GB 2624154 A GB2624154 A GB 2624154A GB 773611 A GB773611 A GB 773611A
Authority
GB
United Kingdom
Prior art keywords
parts
phenol
formaldehyde
hydroxides
meta
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
GB2624154A
Inventor
Donald Alexander Fraser
Richard William Hall
Alaric Louis Jeffrey Raum
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB2624154A priority Critical patent/GB773611A/en
Publication of GB773611A publication Critical patent/GB773611A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

Resol resins are made by condensing a molar excess of phenolic material with formaldehyde in the presence of a strongly basic oxide or hydroxide of a divalent electropositive metal at a pH greater than 7 to produce a non-heat hardenable novolak resin which is then reacted with formaldehyde at a pH above 7, the condensation being stopped before the resol becomes insoluble. The molar ratio of condensed formaldehyde to phenol in the final product exceeds 1 : 1. The phenolic material comprises phenol, meta-cresol, meta-ethyl phenol and mixtures thereof amongst themselves or with other phenolic compounds. Suitable catalysts for the first stage of the process are the oxides and hydroxides of barium, strontium, calcium and magnesium, whilst suitable catalysts for the second stage include the alkali metal hydroxides and carbonates, alkaline earth metal oxides and hydroxides, ammonia and organic bases. In the example, 3000 parts of phenol, 658 parts of formalin (36.35 per cent) and 30 parts of calcium carbonate are refluxed for 30 minutes and water distilled off to a temperature of 160 DEG C. and the excess phenol removed; 252 parts of the resultant novolak are mixed with 277 parts of water and 59.2 parts of 151.6 parts of formalin added and the solution heated to 90 DEG C. The product was suitable for use as a plywood adhesive.
GB2624154A 1954-09-10 1954-09-10 Resol resins Expired GB773611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2624154A GB773611A (en) 1954-09-10 1954-09-10 Resol resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2624154A GB773611A (en) 1954-09-10 1954-09-10 Resol resins

Publications (1)

Publication Number Publication Date
GB773611A true GB773611A (en) 1957-05-01

Family

ID=10240549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2624154A Expired GB773611A (en) 1954-09-10 1954-09-10 Resol resins

Country Status (1)

Country Link
GB (1) GB773611A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022942A (en) 1972-02-17 1977-05-10 Monsanto Company Process of preparing fibrous sheet from high-ortho phenolic resole resin varnish
US4668759A (en) * 1985-07-31 1987-05-26 Acme Resin Corporation Phenolic resin binders for foundry and refractory uses
CN112585189A (en) * 2018-08-27 2021-03-30 日铁化学材料株式会社 Phosphorus-containing epoxy resin, epoxy resin composition, prepreg, laminate, material for circuit board, and cured product

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022942A (en) 1972-02-17 1977-05-10 Monsanto Company Process of preparing fibrous sheet from high-ortho phenolic resole resin varnish
US4668759A (en) * 1985-07-31 1987-05-26 Acme Resin Corporation Phenolic resin binders for foundry and refractory uses
US4740535A (en) * 1985-07-31 1988-04-26 Acme Resin Corporation Phenolic resin binders for foundry and refractory uses
CN112585189A (en) * 2018-08-27 2021-03-30 日铁化学材料株式会社 Phosphorus-containing epoxy resin, epoxy resin composition, prepreg, laminate, material for circuit board, and cured product
CN112585189B (en) * 2018-08-27 2023-08-01 日铁化学材料株式会社 Epoxy resin composition, prepreg, laminated board, material for circuit board, cured product, and method for producing phosphorus-containing epoxy resin

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