GB586199A - Improvements in or relating to the production of cellular synthetic resin compositions - Google Patents

Improvements in or relating to the production of cellular synthetic resin compositions

Info

Publication number
GB586199A
GB586199A GB1388144A GB1388144A GB586199A GB 586199 A GB586199 A GB 586199A GB 1388144 A GB1388144 A GB 1388144A GB 1388144 A GB1388144 A GB 1388144A GB 586199 A GB586199 A GB 586199A
Authority
GB
United Kingdom
Prior art keywords
hardening
resin
liquid
silica
composition
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
GB1388144A
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.)
MANFRED GOLDSTAUB
SEMTEX Ltd
Dunlop Rubber Co Ltd
Original Assignee
MANFRED GOLDSTAUB
SEMTEX Ltd
Dunlop Rubber 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 MANFRED GOLDSTAUB, SEMTEX Ltd, Dunlop Rubber Co Ltd filed Critical MANFRED GOLDSTAUB
Priority to GB1388144A priority Critical patent/GB586199A/en
Publication of GB586199A publication Critical patent/GB586199A/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
    • C08J9/125—Water, e.g. hydrated salts
    • 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

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Cellular synthetic resin products are made by forming a composition comprising a liquid hardenable resin, an inert volatilizable liquid, a hardening agent and a surface-active agent, foaming the composition by vaporizing the inert liquid while the resin is still liquid, and maintaining the foamed composition at hardening temperature until the resin has hardened. In a preferred form, an aqueous syrup of a hardening agent and a surface-active agent, and the mixture is poured into a preheated heat-insulated mould, the heat of reaction being sufficient for hardening and vaporizing. Resins derived from formaldehyde and phenol, metacresols unsubstituted in o- and p-positions, or resorcinol may be employed; hardening agents specified are hydrochloric acid for phenol- and urea-formaldehyde resins, and alkali hydroxides for resorcinol-formaldehyde resins. Surface-active agents specified are sulphonated castor oils, animal glue, cationic soaps, and cetyl pyridinium bromide. Bubble formation may be assisted by incorporating a finely-divided inert solid, e.g. powdered barytes or silica (diatomaceous earth), or powder prepared from silica gels. In examples, an aqueous phenolformaldehyde resin syrup is mixed with sulphonated castor oil and hydrochloric acid, with and without silica, and the mix is placed in a rubber-lined wooden mould which has been preheated to 50 DEG C.
GB1388144A 1944-07-20 1944-07-20 Improvements in or relating to the production of cellular synthetic resin compositions Expired GB586199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1388144A GB586199A (en) 1944-07-20 1944-07-20 Improvements in or relating to the production of cellular synthetic resin compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1388144A GB586199A (en) 1944-07-20 1944-07-20 Improvements in or relating to the production of cellular synthetic resin compositions

Publications (1)

Publication Number Publication Date
GB586199A true GB586199A (en) 1947-03-11

Family

ID=10031050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1388144A Expired GB586199A (en) 1944-07-20 1944-07-20 Improvements in or relating to the production of cellular synthetic resin compositions

Country Status (1)

Country Link
GB (1) GB586199A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789095A (en) * 1952-11-22 1957-04-16 Du Pont Process for preparing urea-formaldehyde solid foam
US2807595A (en) * 1952-11-22 1957-09-24 Du Pont Process for modifying urea-formaldehyde solid foam
US2933461A (en) * 1954-08-31 1960-04-19 Westinghouse Electric Corp Method for producing a cured expanded phenolic-aldehyde resin
US4035456A (en) * 1973-11-05 1977-07-12 Imperial Chemical Industries Limited Process for the manufacturing a cured expanded non-cracking dimensionally stable urea formaldehyde product
US4234698A (en) * 1977-09-12 1980-11-18 British Industrial Plastics Limited Method of making cured aminoplast foam
FR2482609A1 (en) * 1980-05-14 1981-11-20 Armstrong World Ind Inc PHENOLIC FOAM
US4423163A (en) * 1980-10-09 1983-12-27 Koppers Company, Inc. Method of producing phenolic foam using pressure and foam produced by the method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789095A (en) * 1952-11-22 1957-04-16 Du Pont Process for preparing urea-formaldehyde solid foam
US2807595A (en) * 1952-11-22 1957-09-24 Du Pont Process for modifying urea-formaldehyde solid foam
US2933461A (en) * 1954-08-31 1960-04-19 Westinghouse Electric Corp Method for producing a cured expanded phenolic-aldehyde resin
US4035456A (en) * 1973-11-05 1977-07-12 Imperial Chemical Industries Limited Process for the manufacturing a cured expanded non-cracking dimensionally stable urea formaldehyde product
US4234698A (en) * 1977-09-12 1980-11-18 British Industrial Plastics Limited Method of making cured aminoplast foam
FR2482609A1 (en) * 1980-05-14 1981-11-20 Armstrong World Ind Inc PHENOLIC FOAM
US4423163A (en) * 1980-10-09 1983-12-27 Koppers Company, Inc. Method of producing phenolic foam using pressure and foam produced by the method

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