[go: up one dir, main page]

ES441641A1 - Procedimiento para la preparacion de soluciones de resinas endurecibles de urea y formaldehido. - Google Patents

Procedimiento para la preparacion de soluciones de resinas endurecibles de urea y formaldehido.

Info

Publication number
ES441641A1
ES441641A1 ES441641A ES441641A ES441641A1 ES 441641 A1 ES441641 A1 ES 441641A1 ES 441641 A ES441641 A ES 441641A ES 441641 A ES441641 A ES 441641A ES 441641 A1 ES441641 A1 ES 441641A1
Authority
ES
Spain
Prior art keywords
urea
solution
ammonia
viscosity
minutes
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
ES441641A
Other languages
English (en)
Spanish (es)
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt 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 TH Goldschmidt AG filed Critical TH Goldschmidt AG
Publication of ES441641A1 publication Critical patent/ES441641A1/es
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
    • C08G12/043—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24
    • C08G12/046—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24 one being urea or thiourea

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Laminated Bodies (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Polymerisation Methods In General (AREA)
  • Materials For Medical Uses (AREA)
  • Paper (AREA)
ES441641A 1974-10-11 1975-10-09 Procedimiento para la preparacion de soluciones de resinas endurecibles de urea y formaldehido. Expired ES441641A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2448472A DE2448472C3 (de) 1974-10-11 1974-10-11 Verfahren zur Herstellung von Lösungen von Harnstoff-Formaldehyd-Tränkharzen

Publications (1)

Publication Number Publication Date
ES441641A1 true ES441641A1 (es) 1977-04-01

Family

ID=5928060

Family Applications (1)

Application Number Title Priority Date Filing Date
ES441641A Expired ES441641A1 (es) 1974-10-11 1975-10-09 Procedimiento para la preparacion de soluciones de resinas endurecibles de urea y formaldehido.

Country Status (11)

Country Link
AT (1) AT348260B (xx)
BE (1) BE834032A (xx)
CS (1) CS196288B2 (xx)
DD (1) DD120454A5 (xx)
DE (1) DE2448472C3 (xx)
ES (1) ES441641A1 (xx)
FR (1) FR2287459A1 (xx)
GB (1) GB1513409A (xx)
HU (1) HU170828B (xx)
NO (1) NO140674C (xx)
SE (1) SE426495B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734638C2 (de) * 1977-08-01 1982-12-30 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von Lösungen härtbarer Harnstoff-Formaldehydharze für die Tränkung und Beschichtung von Trägerbahnen zur Oberflächenvergütung von Holzwerkstoffplatten
DE2825590C2 (de) * 1978-06-10 1983-05-05 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von wärmehärtbaren Harnstoff-Formaldehyd-Harzen und deren Verwendung
CH648570A5 (de) * 1981-10-26 1985-03-29 Sika Ag Polykondensationsprodukt.
GB2192005B (en) * 1986-06-27 1989-12-13 Ciba Geigy Ag Process for the preparation of urea-formaldehyde resins

Also Published As

Publication number Publication date
GB1513409A (en) 1978-06-07
HU170828B (hu) 1977-09-28
NO140674C (no) 1979-10-31
DE2448472A1 (de) 1976-04-22
NO753400L (xx) 1976-04-13
AT348260B (de) 1979-02-12
BE834032A (fr) 1976-01-16
SE426495B (sv) 1983-01-24
NO140674B (no) 1979-07-09
DE2448472C3 (de) 1979-08-30
DD120454A5 (xx) 1976-06-12
SE7511396L (sv) 1976-04-12
FR2287459B1 (xx) 1978-04-07
FR2287459A1 (fr) 1976-05-07
CS196288B2 (en) 1980-03-31
DE2448472B2 (de) 1979-01-11
ATA775275A (de) 1978-06-15

Similar Documents

Publication Publication Date Title
GB1262752A (en) A process for n-methylating nitroanilines and compounds prepared thereby
ES441641A1 (es) Procedimiento para la preparacion de soluciones de resinas endurecibles de urea y formaldehido.
ES410027A1 (es) Procedimiento para la preparacion continua de resinas urea-formaldehido en una serie de etapas.
GB1522695A (en) Process for the production of thermoplastic synthetic materials and plastics shaping materials of chemically modified protein and chemical plasticizer
GB1334834A (en) Production of aminomethylene phosphonic acids
SE7705234L (sv) Forfarande for framstellning av losningar av herdbara karbamid-formaldehydhartser
DE69413222D1 (de) Verfahren zur herstellung von sulfonierten melaminformaldehydharzen
GB1509000A (en) Composition and process for treating timber
ES418324A1 (es) Procedimiento para la fabricacion de una estructura tridi- mensional o plana a base de particulas de corcho.
MY102732A (en) A process for the manufacture of n, n-(dibenzohexatrienylene) ureas
US2723253A (en) Thermo-settable intermediate condensation products
GB1452318A (en) Process for the manufacture of n,n,n,n-tetraphenyldiamino- methane
US2369503A (en) Reactions between organic nitrogen compounds and reaction products of formaldehyde with sulphamates
ES433483A1 (es) Un procedimiento para la preparacion de neohesperidin-dihi-drocalcona.
GB1525645A (en) Process for preparing iminodiacetonitrile
ES417941A1 (es) Un procedimiento para la disminucion de la fragilidad de piezas moldeadas a partir de masas a base de resinas de urea-formaldehido.
ES434055A1 (es) Un procedimiento para preparar el acido 1h-tetrazol-1-ace- tico.
ES427508A1 (es) Procedimiento para la preparacion de 2,2,6,6-tetrametil-4- oxopiperidina.
GB1289243A (xx)
SU1368317A1 (ru) Способ получени карбамидоформальдегидных форконденсатов
ES470167A1 (es) Procedimiento para preparar una resina de amino-formaldehido
GB1462729A (en) Hydroxy-aluminum nitrate polymer production
ES415603A1 (es) Procedimiento para la preparacion de derivados de acido pi-ridilaminometilen-malonico.
GB1003218A (en) Production of phenolic resoles
SU487890A1 (ru) Способ выделени аминазина