FR2270221B1 - - Google Patents

Info

Publication number
FR2270221B1
FR2270221B1 FR7514527A FR7514527A FR2270221B1 FR 2270221 B1 FR2270221 B1 FR 2270221B1 FR 7514527 A FR7514527 A FR 7514527A FR 7514527 A FR7514527 A FR 7514527A FR 2270221 B1 FR2270221 B1 FR 2270221B1
Authority
FR
France
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
FR7514527A
Other languages
French (fr)
Other versions
FR2270221A1 (ro
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.)
Saarbergwerke AG
Original Assignee
Saarbergwerke 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 Saarbergwerke AG filed Critical Saarbergwerke AG
Publication of FR2270221A1 publication Critical patent/FR2270221A1/fr
Application granted granted Critical
Publication of FR2270221B1 publication Critical patent/FR2270221B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12—Ureas; Thioureas
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Fertilizers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
FR7514527A 1974-05-08 1975-05-09 Expired FR2270221B1 (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742422238 DE2422238C2 (de) 1974-05-08 1974-05-08 Verfahren zur Herstellung eines Harnstoff-Formaldehyd-Düngers

Publications (2)

Publication Number Publication Date
FR2270221A1 FR2270221A1 (ro) 1975-12-05
FR2270221B1 true FR2270221B1 (ro) 1981-10-09

Family

ID=5914975

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514527A Expired FR2270221B1 (ro) 1974-05-08 1975-05-09

Country Status (5)

Country Link
AT (1) AT335485B (ro)
CH (1) CH610288A5 (ro)
DE (1) DE2422238C2 (ro)
FR (1) FR2270221B1 (ro)
NL (1) NL181362C (ro)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1152197B (it) * 1982-05-27 1986-12-31 Montedison Spa Procedimento per la preparazione di fertilizzanti a lenta cessione di azoto
DE3539631C2 (de) * 1985-11-08 1997-07-31 Basf Ag Verfahren zur Herstellung von Oligomethylenharnstoffgemischen
IT1301970B1 (it) * 1998-07-30 2000-07-20 Sadepan Chimica S A S Di Savio Procedimento per la formulazione di un fertilizzante azotato stabilein forma liquida per un rilascio dell'azoto protratto nel tempo.
EP1195365A1 (de) 2000-09-21 2002-04-10 Agra Dünger GmbH Verfahren zur Herstellung von Methylenharnstoff-Polymeren
JP4430945B2 (ja) 2002-03-26 2010-03-10 ジョージア − パシフィック ケミカルズ エルエルシー 徐放性窒素肥料
CN115024188B (zh) * 2022-01-21 2024-02-23 江苏省农业科学院 一种氮缓释型秸秆育秧基质盘的制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528582C (de) * 1929-10-08 1931-07-09 I G Farbenindustrie Akt Ges Verfahren zur Herstellung von kristallisierten Kondensationsprodukten aus Formaldehyd und Harnstoffen

Also Published As

Publication number Publication date
CH610288A5 (en) 1979-04-12
NL181362B (nl) 1987-03-02
FR2270221A1 (ro) 1975-12-05
DE2422238C2 (de) 1987-03-26
NL7505402A (nl) 1975-11-11
DE2422238A1 (de) 1975-11-27
NL181362C (nl) 1987-08-03
ATA352875A (de) 1976-07-15
AT335485B (de) 1977-03-10

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Legal Events

Date Code Title Description
ST Notification of lapse