GB844445A - Dry fire-extinguishing powders - Google Patents

Dry fire-extinguishing powders

Info

Publication number
GB844445A
GB844445A GB2266456A GB2266456A GB844445A GB 844445 A GB844445 A GB 844445A GB 2266456 A GB2266456 A GB 2266456A GB 2266456 A GB2266456 A GB 2266456A GB 844445 A GB844445 A GB 844445A
Authority
GB
United Kingdom
Prior art keywords
powder
polymeride
acid
extinguishing
metaphosphoric acid
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
GB2266456A
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
Publication of GB844445A publication Critical patent/GB844445A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0007—Solid extinguishing substances
    • A62D1/0014—Powders; Granules

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fireproofing Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

A dry fire-extinguishing powder for extinguishing open flame and smouldering fires contains a bicarbonate and / or carbonate together with an organic, nitrogenous resinous polymeride which forms a foaming crust when exposed to heat, or a reaction product of said resinous polymeride with orthophosphoric acid or metaphosphoric acid. The powder may contain from 15-50% of the polymeride or reaction product thereof with orthophosphoric or metaphosphoric acid. In three examples, the additives comprise respectively, a condensation product of cyanamide with formaldehyde, a condensation product of guanidine with formaldehyde converted with metaphosphoric acid and a polyamide or a polyurethane. Preferably at least 50% of the salts consist of well formed individual salt crystals, and the granular components of the powder have a granular size of less than 0,06 m.m. The powder also may contain a water-repellant agent such as stearic acid or its metal salts.
GB2266456A 1955-07-22 1956-07-23 Dry fire-extinguishing powders Expired GB844445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET11174A DE1000693B (en) 1955-07-22 1955-07-22 Dry extinguishing powder for combating flames and embers

Publications (1)

Publication Number Publication Date
GB844445A true GB844445A (en) 1960-08-10

Family

ID=7546631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2266456A Expired GB844445A (en) 1955-07-22 1956-07-23 Dry fire-extinguishing powders

Country Status (2)

Country Link
DE (1) DE1000693B (en)
GB (1) GB844445A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219331B (en) * 1964-11-13 1966-06-16 Feuerloeschgeraetewerk Veb Universal extinguishing powder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138323B (en) * 1960-03-25 1962-10-18 Concordia Elek Zitaets Ag Dry powder
AU643094B2 (en) * 1990-11-02 1993-11-04 Skylab International Limited Reversible transformation of hydrocarbons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219331B (en) * 1964-11-13 1966-06-16 Feuerloeschgeraetewerk Veb Universal extinguishing powder

Also Published As

Publication number Publication date
DE1000693B (en) 1957-01-10

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