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ES472102A1 - Procedimiento para la preparacion de soluciones de resinas de urea-formaldehido endurecibles - Google Patents

Procedimiento para la preparacion de soluciones de resinas de urea-formaldehido endurecibles

Info

Publication number
ES472102A1
ES472102A1 ES472102A ES472102A ES472102A1 ES 472102 A1 ES472102 A1 ES 472102A1 ES 472102 A ES472102 A ES 472102A ES 472102 A ES472102 A ES 472102A ES 472102 A1 ES472102 A1 ES 472102A1
Authority
ES
Spain
Prior art keywords
formaldehyde resins
preparing solutions
wood
integer
solutions
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
ES472102A
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.)
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 ES472102A1 publication Critical patent/ES472102A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • C08G12/46—Block or graft polymers prepared by polycondensation of aldehydes or ketones on to macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/50—Acyclic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Procedimiento para la preparación de resinas de urea-formaldehido endurecibles para la impregnación y el recubrimiento de bandas continuas de soporte, con el fin de efectuar el ennoblecimiento superficial de placas de materiales de madera, en el que se hace reaccionar una solución acuosa de a) urea y formaldehido en una proporción molar de 1:1,5 hasta 2,5 en presencia de 0,2 hasta 1,0 milimoles de un ácido aminosulfónico y 20 a 100 milimoles de amoníaco (siempre referido a 1 mol de urea) a temperaturas de 70 a 95ºC durante 10 a 30 minutos, hasta que la solución al 50 % tenga a 20ºC una viscosidad de 55 hasta 65 cP; b) luego se añaden 0,8 a 10 milimoles de un ácido aminosulfónico, se mantiene con amoníaco un valor de pH de 4,0 a 4,5 durante un tiempo de reacción de 10 a 25 minutos a 70 hasta 95ºC, hasta que la solución al 50 % tenga a 20ºC una viscosidad de 80 hasta 110 cP, y finalmente a este producto de reacción se le añaden c) 40 a 200 milimoles de amoniaco así como 0,1 a 0,3 moles de urea, y la mezcla de reacción se hace reaccionar a una temperatura de 70 a 95ºC durante 15 hasta 45 minutos, hasta que la solución al 50 % tenga a 20ºC una viscosidad de 85 a 125 cP.
ES472102A 1977-08-01 1978-07-27 Procedimiento para la preparacion de soluciones de resinas de urea-formaldehido endurecibles Expired ES472102A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2734638A DE2734638C2 (de) 1977-08-01 1977-08-01 Verfahren zur Herstellung von Lösungen härtbarer Harnstoff-Formaldehydharze für die Tränkung und Beschichtung von Trägerbahnen zur Oberflächenvergütung von Holzwerkstoffplatten

Publications (1)

Publication Number Publication Date
ES472102A1 true ES472102A1 (es) 1979-02-16

Family

ID=6015372

Family Applications (1)

Application Number Title Priority Date Filing Date
ES472102A Expired ES472102A1 (es) 1977-08-01 1978-07-27 Procedimiento para la preparacion de soluciones de resinas de urea-formaldehido endurecibles

Country Status (9)

Country Link
AU (1) AU3845078A (es)
BE (1) BE869436A (es)
DE (1) DE2734638C2 (es)
ES (1) ES472102A1 (es)
FR (1) FR2399449A1 (es)
GB (1) GB2003897B (es)
MX (1) MX149039A (es)
SE (1) SE433614B (es)
YU (1) YU39425B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505766A1 (de) * 1985-02-20 1986-08-21 Cassella Ag, 6000 Frankfurt Sulfonamidderivate, deren herstellung und verwendung
DE4103752A1 (de) * 1991-02-07 1992-08-13 Fuller H B Gmbh Verfahren zur herstellung eines wasserloeslichen (form)-aldehydharzes und dieses enthaltende klebstoffzusammensetzung
DE102005060758B3 (de) * 2005-12-16 2007-08-30 Kronotec Ag Substrat für den Inkjet-Druck zum Beschichten eines Paneels aus Holzwerkstoff
WO2018039402A1 (en) * 2016-08-24 2018-03-01 Sabic Global Technologies B.V. Device and process for producing composite structures

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769143A (en) * 1971-09-08 1973-10-30 Int Paper Co Resin impregnated cellulosic veneer and laminated panels
US3790529A (en) * 1971-10-05 1974-02-05 Rei Tech Inc Process for producing cationic water soluble polymer by reacting formaldehyde,amine,a polymer of acrylamide or methacrylamide and precipitating said polymer with a water soluble salt of a polybasic acid
DE2448472C3 (de) * 1974-10-11 1979-08-30 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von Lösungen von Harnstoff-Formaldehyd-Tränkharzen
DE2536978C3 (de) * 1975-08-20 1979-11-22 Th. Goldschmidt Ag, 4300 Essen Modifizierungsmittel für Aminoplastharze

Also Published As

Publication number Publication date
MX149039A (es) 1983-08-10
YU39425B (en) 1984-12-31
SE433614B (sv) 1984-06-04
BE869436A (fr) 1978-12-01
SE7808100L (sv) 1979-02-02
GB2003897B (en) 1982-01-27
GB2003897A (en) 1979-03-21
DE2734638C2 (de) 1982-12-30
DE2734638A1 (de) 1979-02-15
FR2399449A1 (fr) 1979-03-02
AU3845078A (en) 1980-01-31
YU173078A (en) 1982-06-30
FR2399449B1 (es) 1981-07-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971103