ES8106163A1 - Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad - Google Patents

Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad

Info

Publication number
ES8106163A1
ES8106163A1 ES494322A ES494322A ES8106163A1 ES 8106163 A1 ES8106163 A1 ES 8106163A1 ES 494322 A ES494322 A ES 494322A ES 494322 A ES494322 A ES 494322A ES 8106163 A1 ES8106163 A1 ES 8106163A1
Authority
ES
Spain
Prior art keywords
urea
tacky
formaldehyde
preparation
formaldehyde resin
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
ES494322A
Other languages
English (en)
Other versions
ES494322A0 (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.)
Patentes y Novedades SA
Original Assignee
Patentes y Novedades SA
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 Patentes y Novedades SA filed Critical Patentes y Novedades SA
Priority to ES494322A priority Critical patent/ES8106163A1/es
Priority to MX187640A priority patent/MX158011A/es
Priority to AT0330081A priority patent/AT387226B/de
Priority to CA000382882A priority patent/CA1175970A/en
Publication of ES494322A0 publication Critical patent/ES494322A0/es
Publication of ES8106163A1 publication Critical patent/ES8106163A1/es
Priority to AR286357A priority patent/AR226474A1/es
Priority to SE8104754A priority patent/SE450385B/sv
Priority to DE19813132280 priority patent/DE3132280A1/de
Priority to NO812759A priority patent/NO156980C/no
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

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)
  • Polyurethanes Or Polyureas (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

PROCEDIMIENTO DE PREPARACION DE UNA RESINA UREAFORMALDEHIDO. COMPRENDE LAS ETAPAS: TRATAR FORMALDEHIDO CON UNA BASE ORGANICA FUERTE PARA AJUSTAR EL PH; AÑADIR UREA HASTA QUE LA RELACION MOLAR FORMALDEHIDO/UREA ESTA COMPRENDIDA ENTRE 1,90 Y 2,35; CALENTAR HASTA EBULLICION; AJUSTAR EL PH A 5-6,3 CON ACIDO FORMICO; PARA LA REACCION DE POLIMERIZACION CUANDO EL PRODUCTO HA ALCANZADO LA VISCOSIDAD DESEADA POR MEDIO DE UNA BASE ORGANICA; EFECTUAR UNA SEGUNDA ADICION DE UREA AL PRODUCTO EN EL CURSO DE ENFRIAMIENTO, DE FORMA QUE LA RELACION MOLAR FINAL FORMALDEHIDO/UREA ESTE COMPRENDIDA ENTRE 1,38 Y 1,70 Y AJUSTAR EL PH A 8-8,85. LAS RESINAS OBTENIDAS SON DE APLICACION PARA LA FABRICACION DE TABLEROS DE FIBRAS DE MATERIAL LIGNOCELULOSICO.
ES494322A 1980-08-18 1980-08-18 Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad Expired ES8106163A1 (es)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES494322A ES8106163A1 (es) 1980-08-18 1980-08-18 Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad
MX187640A MX158011A (es) 1980-08-18 1981-06-04 Procedimiento mejorado de preparacion de una resina urea-formaldehido de baja pegajosidad
AT0330081A AT387226B (de) 1980-08-18 1981-07-27 Verfahren zur herstellung eines nichtklebrigen harnstoff/formaldehyd-harzes
CA000382882A CA1175970A (en) 1980-08-18 1981-07-30 Process for the preparation of a tack free urea/formaldehyde resin
AR286357A AR226474A1 (es) 1980-08-18 1981-08-06 Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad
SE8104754A SE450385B (sv) 1980-08-18 1981-08-07 Forfarande for framstellning av ett icke-klibbande karbamidformaldehydharts
DE19813132280 DE3132280A1 (de) 1980-08-18 1981-08-14 Verfahren zur herstellung eines nicht-klebrigen harnstoff/formaldehyd-harzes
NO812759A NO156980C (no) 1980-08-18 1981-08-14 FremgangsmŸte til fremstilling av en stabil, klebefri urea/formaldehyd-harpiks.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES494322A ES8106163A1 (es) 1980-08-18 1980-08-18 Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad

Publications (2)

Publication Number Publication Date
ES494322A0 ES494322A0 (es) 1981-08-01
ES8106163A1 true ES8106163A1 (es) 1981-08-01

Family

ID=8480971

Family Applications (1)

Application Number Title Priority Date Filing Date
ES494322A Expired ES8106163A1 (es) 1980-08-18 1980-08-18 Procedimiento de preparacion de una resina ureaformaldehido de baja pegajosidad

Country Status (8)

Country Link
AR (1) AR226474A1 (es)
AT (1) AT387226B (es)
CA (1) CA1175970A (es)
DE (1) DE3132280A1 (es)
ES (1) ES8106163A1 (es)
MX (1) MX158011A (es)
NO (1) NO156980C (es)
SE (1) SE450385B (es)

Families Citing this family (1)

* 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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT951962B (it) * 1971-12-27 1973-07-10 Sir Soc Italiana Resine Spa Procedimento per la preparazione di resine da urea e formaldeide
US3994850A (en) * 1976-01-05 1976-11-30 Champion International Corporation Modified urea-formaldehyde resin adhesive
OA06231A (fr) * 1978-04-07 1981-06-30 Patentes Novedades Sa Procédé de préparation de colles urée-formaldéhyde contenant un sel inorganique.
DE2825590C2 (de) * 1978-06-10 1983-05-05 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von wärmehärtbaren Harnstoff-Formaldehyd-Harzen und deren Verwendung

Also Published As

Publication number Publication date
NO156980B (no) 1987-09-21
CA1175970A (en) 1984-10-09
SE450385B (sv) 1987-06-22
MX158011A (es) 1988-12-29
AR226474A1 (es) 1982-07-15
ATA330081A (de) 1988-05-15
AT387226B (de) 1988-12-27
NO812759L (no) 1982-02-19
NO156980C (no) 1987-12-30
SE8104754L (sv) 1982-02-19
DE3132280A1 (de) 1982-06-16
ES494322A0 (es) 1981-08-01

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GC1A Exploitation certificate registered application without search report

Effective date: 19980526