GB942845A - Foamed products - Google Patents

Foamed products

Info

Publication number
GB942845A
GB942845A GB2017261A GB2017261A GB942845A GB 942845 A GB942845 A GB 942845A GB 2017261 A GB2017261 A GB 2017261A GB 2017261 A GB2017261 A GB 2017261A GB 942845 A GB942845 A GB 942845A
Authority
GB
United Kingdom
Prior art keywords
acid
condensate
urea
formaldehyde
furfuryl alcohol
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
GB2017261A
Inventor
Douglas Norton Buttrey
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2017261A priority Critical patent/GB942845A/en
Publication of GB942845A publication Critical patent/GB942845A/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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/08—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 by a chemical blowing agent developing carbon dioxide
    • 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
    • C08J2361/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C08J2361/04, C08J2361/18, and C08J2361/20

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention provides, as new materials, foamed solid products comprising thermoset co-condensates of urea and furfuryl alcohol with formaldehyde. They can be obtained by treating a urea-furfuryl alcohol-formaldehyde condensate having a pH not less than 7 with a blowing agent and an acid or latent acid hardener for the co-condensate and causing or allowing the co-condensate to foam and to thermoset under the action of the blowing agent and the hardener. Preferred blowing agents are those which generate a gas by reaction with an acid without the application of heat, e.g. sodium carbonate or bicarbonate or calcium carbonate in combination with phosphoric acid. A plasticizer such as a di- or trihydric alcohol can be included in the mixture before the hardening. In examples the co-condensate is prepared by reacting urea and formaldehyde at pH 7.5, then adding urea, furfuryl alcohol and formic acid (to produce pH 6.5), reacting further, cooling, and adjusting the pH to 7. After dehydration finely divided sodium bicarbonate is milled in and foaming is effected by addition of (1) aqueous orthophosphoric acid; (2) wetting agent, polypropylene glycol and aqueous orthophosphoric acid.
GB2017261A 1961-06-05 1961-06-05 Foamed products Expired GB942845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2017261A GB942845A (en) 1961-06-05 1961-06-05 Foamed products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2017261A GB942845A (en) 1961-06-05 1961-06-05 Foamed products

Publications (1)

Publication Number Publication Date
GB942845A true GB942845A (en) 1963-11-27

Family

ID=10141578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2017261A Expired GB942845A (en) 1961-06-05 1961-06-05 Foamed products

Country Status (1)

Country Link
GB (1) GB942845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514542A1 (en) * 1974-04-04 1975-10-23 Leer Koninklijke Emballage METHOD OF MANUFACTURING POLYAMINE-FORMALDEHYDE-FURFURYL ALCOHOL FOAM AND THEIR USE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514542A1 (en) * 1974-04-04 1975-10-23 Leer Koninklijke Emballage METHOD OF MANUFACTURING POLYAMINE-FORMALDEHYDE-FURFURYL ALCOHOL FOAM AND THEIR USE
US4016111A (en) 1974-04-04 1977-04-05 Koninklijke Emballage Industrie Van Leer B.V. Non-burning, class 1 rating, foams and a method of producing same

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