FR2086587A5 - Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu - Google Patents

Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu

Info

Publication number
FR2086587A5
FR2086587A5 FR7011926A FR7011926A FR2086587A5 FR 2086587 A5 FR2086587 A5 FR 2086587A5 FR 7011926 A FR7011926 A FR 7011926A FR 7011926 A FR7011926 A FR 7011926A FR 2086587 A5 FR2086587 A5 FR 2086587A5
Authority
FR
France
Prior art keywords
crosslinking
aqs
phenol
corrosive
microcapsu
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
FR7011926A
Other languages
French (fr)
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.)
Huiles Goudrons et Derives
Original Assignee
Huiles Goudrons et Derives
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 Huiles Goudrons et Derives filed Critical Huiles Goudrons et Derives
Priority to FR7011926A priority Critical patent/FR2086587A5/en
Application granted granted Critical
Publication of FR2086587A5 publication Critical patent/FR2086587A5/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
    • C08J9/009—Use of pretreated compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients
    • 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

Abstract

Non-corrosive phenolic foams are prepd. from an aqs. soln. of a phenol-formaldehyde resin of the resole type by (a) adding to the aqs. resin soln. (I) 1 - 5% wt. of an emulsion stabiliser, (II) a strong acid dissolved in an alcohol which is a solvent for the resin, as crosslinking agent, and (III) a basic agent in microcapsules with a retarded action for neutralising the residual acidity of the foam at the end of curing, the cover of plastic material of the microcapsules melting under the effect of the crosslinking heat to liberate the basic agent, which forms a water insoluble material salt with the residual acid, (b) crosslinking and expanding by heating the reaction mixt. at 30 - 60 degrees C for ca 1 hr., and (c) stabilising the foam by heating at 25 - 80 degrees C to eliminate volatile materials. Gives non-corrosive, neutral foams with a high content e.g. 95 - 98%, of closed cells.
FR7011926A 1970-04-02 1970-04-02 Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu Expired FR2086587A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7011926A FR2086587A5 (en) 1970-04-02 1970-04-02 Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7011926A FR2086587A5 (en) 1970-04-02 1970-04-02 Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu

Publications (1)

Publication Number Publication Date
FR2086587A5 true FR2086587A5 (en) 1971-12-31

Family

ID=9053317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7011926A Expired FR2086587A5 (en) 1970-04-02 1970-04-02 Non-corrosive phenolic foams - by foaming and crosslinking aqs phenol -formaldehyde resol resin contg retarded action microcapsu

Country Status (1)

Country Link
FR (1) FR2086587A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010353A1 (en) * 1978-09-14 1980-04-30 Company 'a' (Foam) Limited Foamed plastics materials, method for preparing same and their use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010353A1 (en) * 1978-09-14 1980-04-30 Company 'a' (Foam) Limited Foamed plastics materials, method for preparing same and their use

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Legal Events

Date Code Title Description
ST Notification of lapse