GB578264A - A method of producing cellular resin materials - Google Patents

A method of producing cellular resin materials

Info

Publication number
GB578264A
GB578264A GB1595541A GB1595541A GB578264A GB 578264 A GB578264 A GB 578264A GB 1595541 A GB1595541 A GB 1595541A GB 1595541 A GB1595541 A GB 1595541A GB 578264 A GB578264 A GB 578264A
Authority
GB
United Kingdom
Prior art keywords
syrup
aniline
mixed
prepared
heating
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
GB1595541A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1595541A priority Critical patent/GB578264A/en
Publication of GB578264A publication Critical patent/GB578264A/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
    • C08J9/12—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 physical blowing agent
    • 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
    • C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08J2361/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds

Landscapes

  • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Cellular resinous materials are obtained by mixing a urea-formaldehyde condensation syrup with a modified hardener consisting of an aniline-formaldehyde resin and an acid or acid-forming, hardening agent or catalyst, and heating the mixture. The aniline-formaldehyde condensation product may be mixed with hydrochloric acid to form a gel which is then mixed with the syrup, or powdered aniline-formaldehyde resin may be mixed into an aqueous paste with ammonium chloride and the paste stirred into the syrup. Thus, a modified hardener prepared by stirring powdered aniline-formaldehyde resin, prepared as described in Specification 540,442, into an aqueous solution of ammonium chloride, is admixed with a urea-formaldehyde condensation syrup prepared as described in Specification 545,409, the liquid mixture may be simultaneously expanded and hardened by heating at once or may be allowed to set to an apparently solid mass which is subsequently heated; the heating step may be postponed for some weeks. Fillers, e.g. wood flour or slate dust, and plasticisers, e.g. tricresyl phosphate, may be added. The cellulose material may be formed between two or more sheets of woody material, e.g. plywood or veneer, to produce sandwich panels.
GB1595541A 1941-12-10 1941-12-10 A method of producing cellular resin materials Expired GB578264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1595541A GB578264A (en) 1941-12-10 1941-12-10 A method of producing cellular resin materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1595541A GB578264A (en) 1941-12-10 1941-12-10 A method of producing cellular resin materials

Publications (1)

Publication Number Publication Date
GB578264A true GB578264A (en) 1946-06-21

Family

ID=10068571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1595541A Expired GB578264A (en) 1941-12-10 1941-12-10 A method of producing cellular resin materials

Country Status (1)

Country Link
GB (1) GB578264A (en)

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