DE328759C - Process for the production of fireproof and insulating cardboard by treating the same with caustic alkalis and water glass - Google Patents

Process for the production of fireproof and insulating cardboard by treating the same with caustic alkalis and water glass

Info

Publication number
DE328759C
DE328759C DE1919328759D DE328759DD DE328759C DE 328759 C DE328759 C DE 328759C DE 1919328759 D DE1919328759 D DE 1919328759D DE 328759D D DE328759D D DE 328759DD DE 328759 C DE328759 C DE 328759C
Authority
DE
Germany
Prior art keywords
water glass
treating
production
fireproof
cardboard
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
DE1919328759D
Other languages
German (de)
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.)
Ploennis & Co Dr
Original Assignee
Ploennis & Co Dr
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 Ploennis & Co Dr filed Critical Ploennis & Co Dr
Application granted granted Critical
Publication of DE328759C publication Critical patent/DE328759C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/08—Impregnated or coated fibreboard

Landscapes

  • Paper (AREA)

Description

Verfahren zur Herstellung von feuersicherer und isolierend wirkender Pappe durch Behandeln derselben mit Ätzalkalien und Wasserglas. Es ist bekannt, Pappe dadurch: zu imprägnieren, daß man sie erst mit heißer, konzentrierter Alkalilauge durchtränkt und dann in eine heiße, verdünnte; Lösung eines löslichen Silikates bringt. Im Gegensatz hierzu besteht das vorliegende Verfahren darin, daß eine Mischung von Wasserglas und Ätzalkali hergestellt und mit dieser die zu imprägnierende Pappe durchtränkt wird. Dadurch wird erreicht, daß beide Imprägnierungsflüssigkeiten in inniger Verbindung gleichmäßig durch alle Schichten der Pappe (Holzstoff) verteilt werden und in allen Teilen gemeinsam zur Wirkung kommen. Diese Wirkung besteht u. a. darin,-daß die imprägnierte Pappe feuersicher und wärmeisolierend wird, auch eine große Härte und Festigkeit gewinnt. Auch verleiht diese Imprägnierung Widerstandsfähigkeit gegen chemische Einflüsse und gegen die zerstörende Einwirkung von Organismen. Nach vorliegendem Verfahren imprägnierte Pappe würde sich z. B. zur Herstellüug von Gegenständen, bei denen es auf Hitzebeständigkeit ankommt, wie Dichtungsringe für Dampfleitungen, oder zur Herstellung von feuersicheren Wänden, zu Verpackungsmaterial und anderen Zwecken eignen, die Anforderungen an hohe Festigkeit bei geringem Gewicht stellen.Process for the production of fireproof and insulating Cardboard by treating it with caustic alkalis and water glass. It is known, Cardboard: to be impregnated by first treating it with hot, concentrated alkali soaked and then into a hot, diluted; Solution of a soluble silicate brings. In contrast, the present method is that a mixture made of water glass and caustic alkali and with this the cardboard to be impregnated is saturated. This ensures that both impregnation liquids in intimate connection evenly distributed through all layers of the cardboard (wood pulp) and come into effect in all parts together. This effect exists u. a. in that the impregnated cardboard becomes fire-proof and heat-insulating, too gains great hardness and strength. This impregnation also gives it resistance against chemical influences and against the destructive effects of organisms. To present process impregnated cardboard would be z. B. for the production of objects, where heat resistance is important, such as sealing rings for steam pipes, or for the production of fireproof walls, for packaging material and others Suitable for purposes that require high strength and low weight.

Claims (1)

PATENT-ANSpRUcH: Verfahren zur Herstellung von feuersicherer und isolierend wirkender Pappe durch Behandeln derselben' mit Ätzalkalien und Wasserglas, dadurch gekennzeichnet, daß die Tränkung der Pappe (Holzstoff) mit einer Mischung von Wasserglas und Ätzalkalien erfolgt.PATENT CLAIM: Method of manufacturing fire-safe and insulating working cardboard by treating it with caustic alkalis and water glass, thereby characterized in that the impregnation of the cardboard (wood pulp) with a mixture of water glass and caustic alkalis takes place.
DE1919328759D 1919-05-10 1919-05-10 Process for the production of fireproof and insulating cardboard by treating the same with caustic alkalis and water glass Expired DE328759C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE328759T 1919-05-10

Publications (1)

Publication Number Publication Date
DE328759C true DE328759C (en) 1920-11-05

Family

ID=6186338

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919328759D Expired DE328759C (en) 1919-05-10 1919-05-10 Process for the production of fireproof and insulating cardboard by treating the same with caustic alkalis and water glass

Country Status (1)

Country Link
DE (1) DE328759C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169832B (en) * 1960-08-27 1964-05-06 Basf Ag Process for the production of thermally insulating flame retardant layers
US5438910A (en) * 1992-04-30 1995-08-08 Bendix Europe Services Techniques Assembly comprising a bulkhead and a pneumatic brake-booster for a motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169832B (en) * 1960-08-27 1964-05-06 Basf Ag Process for the production of thermally insulating flame retardant layers
US5438910A (en) * 1992-04-30 1995-08-08 Bendix Europe Services Techniques Assembly comprising a bulkhead and a pneumatic brake-booster for a motor vehicle

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