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ES2000588A6 - Un procedimiento de fabricacion de una resina de urea-formaldehido solida - Google Patents

Un procedimiento de fabricacion de una resina de urea-formaldehido solida

Info

Publication number
ES2000588A6
ES2000588A6 ES8600774A ES8600774A ES2000588A6 ES 2000588 A6 ES2000588 A6 ES 2000588A6 ES 8600774 A ES8600774 A ES 8600774A ES 8600774 A ES8600774 A ES 8600774A ES 2000588 A6 ES2000588 A6 ES 2000588A6
Authority
ES
Spain
Prior art keywords
solid urea
formaldehyde resins
making solid
urea
ratio
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
ES8600774A
Other languages
English (en)
Inventor
David Taylor
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.)
Bip Chemicals Ltd
Original Assignee
Bip Chemicals Ltd
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 Bip Chemicals Ltd filed Critical Bip Chemicals Ltd
Publication of ES2000588A6 publication Critical patent/ES2000588A6/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
    • C08G12/10—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
    • 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
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
    • C08G12/36—Ureas; Thioureas
    • C08G12/38—Ureas; Thioureas and melamines

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)

Abstract

EL PROCEDIMIENTO DESCRITO COMPRENDE A) HACER REACCIONAR FORMALDEHIDO DISUELTO EN AGUA CON UREA, EN CONDICIONES ACIDAS, A UNA PROPORCION MOLAR FORMALDEHIDO/UREA DE AL MENOS 2,5-1, AJUSTANDO EL PH ENTRE NEUTRO Y LIGERAMENTE ALCALINO, B) OPCIONALMENTE, CONCENTRAR LA DISOLUCION REDUCIENDO SU CONTENIDO DE AGUA, C) A/ADIR MAS UREA AJUSTANDO LA PROPORCION FORMALDEHIDO/UREA ENTRE 2,0-1 Y 1,1-1, D) EVAPORAR RAPIDAMENTE AGUA DE LA DISOLUCION SIN AUMENTO SUSTANCIAL DEL GRADO DE CONDENSACION DE LA RESINA NI PRECIPITACION SUSTANCIAL DE LA RESINA SOLIDA. ESTE PROCEDIMIENTO ES ESPECIALMENTE ADECUADO PARA LA FABRICACION DISCONTINUA DE RESINAS A PARTIR DE UREA Y FORMALDEHIDO.
ES8600774A 1985-08-01 1986-07-31 Un procedimiento de fabricacion de una resina de urea-formaldehido solida Expired ES2000588A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858519392A GB8519392D0 (en) 1985-08-01 1985-08-01 Solid uf

Publications (1)

Publication Number Publication Date
ES2000588A6 true ES2000588A6 (es) 1988-03-01

Family

ID=10583180

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600774A Expired ES2000588A6 (es) 1985-08-01 1986-07-31 Un procedimiento de fabricacion de una resina de urea-formaldehido solida

Country Status (7)

Country Link
EP (1) EP0211531B1 (es)
JP (1) JPS6234913A (es)
CA (1) CA1278138C (es)
DE (1) DE3681223D1 (es)
ES (1) ES2000588A6 (es)
GB (2) GB8519392D0 (es)
ZA (1) ZA865459B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD283732A7 (de) * 1988-10-21 1990-10-24 ������@�����`������@ ���@������� k�� Verfahren zur herstellung eines reaktiven harnstoff-formaldehyd-harz-leimes
GB9014491D0 (en) * 1990-06-29 1990-08-22 Digital Equipment Int Mounting silicon chips
US6706808B2 (en) 1999-08-03 2004-03-16 Owens Corning Fiberglas Technology, Inc. Binder compositions exhibiting reduced emissions
DE10314466A1 (de) * 2003-03-28 2004-10-14 Basf Ag Verfahren zur Herstellung von kondensierten Harzen in Pulverform
DE102004043479A1 (de) * 2004-09-08 2006-03-09 Basf Ag Sprühkondensationsverfahren für die Harzherstellung
GR1005819B (el) * 2006-05-26 2008-02-14 Chimar (Hellas) �.�. Αμινοπλαστικες ρητινες υψηλης αποδοσης για λιγνοκυτταρινικα υλικα.
ES2386801T3 (es) 2006-06-13 2012-08-30 Basf Se Procedimiento de condensación por pulverizado para la obtención de resina
JP5347223B2 (ja) * 2007-02-08 2013-11-20 日立化成株式会社 電子素子封止用樹脂被覆無機粉末組成物およびそれを用いて得られる電子素子封止用タブレット、並びに電子素子装置
EP3838392A1 (de) 2019-12-17 2021-06-23 Covestro Deutschland AG Verfahren und vorrichtung zur herstellung thermoplastischer polymere in einem sprühreaktor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD88196A (es) *
GB1570339A (en) * 1976-06-23 1980-06-25 Ici Ltd Process for producing aqueous-formaldehyde resin solutions
DD161058A3 (de) * 1979-11-12 1984-09-05 Leuna Werke Veb Verfahren zur herstellung von harnstoff-formaldehyd-harz-leimen
GB8404758D0 (en) * 1984-02-23 1984-03-28 Bip Chemicals Ltd Resin manufacture

Also Published As

Publication number Publication date
EP0211531B1 (en) 1991-09-04
EP0211531A2 (en) 1987-02-25
GB8617403D0 (en) 1986-08-20
EP0211531A3 (en) 1988-10-12
GB2178749A (en) 1987-02-18
ZA865459B (en) 1987-02-25
JPS6234913A (ja) 1987-02-14
DE3681223D1 (de) 1991-10-10
GB8519392D0 (en) 1985-09-04
CA1278138C (en) 1990-12-18
GB2178749B (en) 1988-07-13

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