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FR2362798A1 - Platre presentant des proprietes ameliorees, contenant un acide phosphonique comme retardateur de prise - Google Patents

Platre presentant des proprietes ameliorees, contenant un acide phosphonique comme retardateur de prise

Info

Publication number
FR2362798A1
FR2362798A1 FR7726122A FR7726122A FR2362798A1 FR 2362798 A1 FR2362798 A1 FR 2362798A1 FR 7726122 A FR7726122 A FR 7726122A FR 7726122 A FR7726122 A FR 7726122A FR 2362798 A1 FR2362798 A1 FR 2362798A1
Authority
FR
France
Prior art keywords
plaster
phosphonic acid
improved properties
timer
containing phosphonic
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.)
Pending
Application number
FR7726122A
Other languages
English (en)
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2362798A1 publication Critical patent/FR2362798A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/003—Phosphorus-containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne de nouveaux retardateurs de prise du plâtre. Ces composés répondent à la formule générale : R-P(O) (OH)2 dans laquelle R représente un radical alkyle, cycloalkyle, aryle ou aralkyle en C1 -C18 , en particulier C1 -C 10 . On peut egalement utiliser des mono- et diesters, ou des dérivés partiellement ou totalement neutralisés. On atteint un retard de prise important sans affecter les propriétés physiques du plâtre.
FR7726122A 1976-08-28 1977-08-26 Platre presentant des proprietes ameliorees, contenant un acide phosphonique comme retardateur de prise Pending FR2362798A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762638852 DE2638852A1 (de) 1976-08-28 1976-08-28 Gips mit verbesserten eigenschaften

Publications (1)

Publication Number Publication Date
FR2362798A1 true FR2362798A1 (fr) 1978-03-24

Family

ID=5986609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726122A Pending FR2362798A1 (fr) 1976-08-28 1977-08-26 Platre presentant des proprietes ameliorees, contenant un acide phosphonique comme retardateur de prise

Country Status (6)

Country Link
BE (1) BE858132A (fr)
CH (1) CH633240A5 (fr)
DE (1) DE2638852A1 (fr)
FR (1) FR2362798A1 (fr)
LU (1) LU78018A1 (fr)
NL (1) NL7709348A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411810A1 (fr) * 1977-12-14 1979-07-13 Protex Manuf Prod Chimique Compositions additives pour melanges a base de platre de gypse ou anhydrite
CN114656188B (zh) * 2022-04-24 2023-03-24 欣格瑞（山东）环境科技有限公司 一种复合型石膏缓凝剂及其制备方法

Also Published As

Publication number Publication date
DE2638852A1 (de) 1978-03-02
LU78018A1 (fr) 1978-04-27
BE858132A (fr) 1978-02-27
NL7709348A (nl) 1978-03-02
CH633240A5 (en) 1982-11-30

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