GB978611A - Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom - Google Patents

Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom

Info

Publication number
GB978611A
GB978611A GB1780/63A GB178061A GB978611A GB 978611 A GB978611 A GB 978611A GB 1780/63 A GB1780/63 A GB 1780/63A GB 178061 A GB178061 A GB 178061A GB 978611 A GB978611 A GB 978611A
Authority
GB
United Kingdom
Prior art keywords
phenol
mixture
formaldehyde
acid
condensate
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
GB1780/63A
Inventor
Eric George Kemp Pritchett
Dominic Smith
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.)
Bakelite Ltd
Original Assignee
Bakelite 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
Priority to NL273568D priority Critical patent/NL273568A/xx
Application filed by Bakelite Ltd filed Critical Bakelite Ltd
Priority to GB1780/63A priority patent/GB978611A/en
Priority to FR854400A priority patent/FR1284191A/en
Priority to CH25562A priority patent/CH433737A/en
Priority to DK16462AA priority patent/DK104372C/en
Priority to BE612655A priority patent/BE612655A/en
Publication of GB978611A publication Critical patent/GB978611A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

One mol of phenol is condensed under alkaline conditions with 1-1.5 mols of formaldehyde until at least 90% of the formaldehyde has con-with the phenol, and the mixture is then vacuum distilled until a test sample of 100 grams of the mixture with 5 grams of ethyl alcohol will tolerate between 5 and 20 ml. of toluene at 25 DEG C. without separation of the condensate. The products are well suited for production of cellular products by addition of an acid hardening agent with or without a foaming agent, e.g. a volatile liquid such as di-isopropyl ether or a gas generator such as zinc dust, sodium carbonate, sodium bicarbonate or potassium nitrite which interacts with the acid hardener to produce gas; or benzene sulphonyl hydrazide which decomposes at the hardening temperature. A small proportion of polyvinyl acetate or polyvinyl acetal, e.g. polyvinyl butyral may be added to the reaction mixture of phenol and formaldehyde or to the hardenable mixture of condensate, hardener and foaming agent. Suitable acid hardeners are sulphuric, hydrochloric, phosphoric or an aromatic sulphonic acid.
GB1780/63A 1961-01-16 1961-01-16 Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom Expired GB978611A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL273568D NL273568A (en) 1961-01-16
GB1780/63A GB978611A (en) 1961-01-16 1961-01-16 Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom
FR854400A FR1284191A (en) 1961-01-16 1961-03-02 Improvements to phenol-formaldehyde condensates and to the foamy products obtained therefrom
CH25562A CH433737A (en) 1961-01-16 1962-01-10 Process for the production of foamable and curable phenol-formaldehyde condensation products
DK16462AA DK104372C (en) 1961-01-16 1962-01-13 Phenol-formaldehyde condensate and process for its use in the preparation of a foam.
BE612655A BE612655A (en) 1961-01-16 1962-01-15 Improvements to phenol-formaldehyde conversation products and their derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1780/63A GB978611A (en) 1961-01-16 1961-01-16 Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom

Publications (1)

Publication Number Publication Date
GB978611A true GB978611A (en) 1964-12-23

Family

ID=9727864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1780/63A Expired GB978611A (en) 1961-01-16 1961-01-16 Improvements in or relating to phenol-formaldehyde condensates and foamed products produced therefrom

Country Status (6)

Country Link
BE (1) BE612655A (en)
CH (1) CH433737A (en)
DK (1) DK104372C (en)
FR (1) FR1284191A (en)
GB (1) GB978611A (en)
NL (1) NL273568A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327314A1 (en) * 1972-06-09 1975-01-02 Exxon Research Engineering Co FOAMED PHENOLIC RESIN SHEETS AND THE METHOD OF MANUFACTURING THEREOF
EP0059618A1 (en) * 1981-02-26 1982-09-08 Thermoset Ag Process for the preparation of mixed resin foams

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327314A1 (en) * 1972-06-09 1975-01-02 Exxon Research Engineering Co FOAMED PHENOLIC RESIN SHEETS AND THE METHOD OF MANUFACTURING THEREOF
EP0059618A1 (en) * 1981-02-26 1982-09-08 Thermoset Ag Process for the preparation of mixed resin foams

Also Published As

Publication number Publication date
CH433737A (en) 1967-04-15
DK104372C (en) 1966-05-09
FR1284191A (en) 1962-02-09
BE612655A (en) 1962-05-02
NL273568A (en)

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