FR2399449A1 - PREPARATION OF CURING UREA / FORMALDEHYDE RESIN SOLUTIONS, ESPECIALLY FOR IMPREGNING AND COATING SUPPORT AND PANEL STRIPS - Google Patents

PREPARATION OF CURING UREA / FORMALDEHYDE RESIN SOLUTIONS, ESPECIALLY FOR IMPREGNING AND COATING SUPPORT AND PANEL STRIPS

Info

Publication number
FR2399449A1
FR2399449A1 FR7822595A FR7822595A FR2399449A1 FR 2399449 A1 FR2399449 A1 FR 2399449A1 FR 7822595 A FR7822595 A FR 7822595A FR 7822595 A FR7822595 A FR 7822595A FR 2399449 A1 FR2399449 A1 FR 2399449A1
Authority
FR
France
Prior art keywords
degrees
urea
preparation
impregning
mmol
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.)
Granted
Application number
FR7822595A
Other languages
French (fr)
Other versions
FR2399449B1 (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
Goldschmidt GmbH
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, Goldschmidt GmbH filed Critical TH Goldschmidt AG
Publication of FR2399449A1 publication Critical patent/FR2399449A1/en
Application granted granted Critical
Publication of FR2399449B1 publication Critical patent/FR2399449B1/fr
Granted 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)
  • Phenolic Resins Or Amino Resins (AREA)
  • Paper (AREA)

Abstract

Préparation de solutions de résines urée-formaldéhyde durcissables. On fait réagir à 70-95 degrés C pendant 10-30 mn une solution aqueuse d'urée et de formaldéhyde en rapport molaire de 1:1,5 à 1:2,5 avec 0,2 à 1,0 mmol d'un acide aminosulfonique et 20 à 100 mmol d'ammoniac par mole d'urée, jusqu'à ce que la solution à 50% présente à 20 degrés C une viscosité de 55 à 65 c P; on ajoute 0,8 à 10 mmol d'un acide aminosulfonique, on maintient au moyen d'ammoniac un pH de 4,0 à 4,5 pendant 10-25 mn à 70-95 degrés C jusqu'à ce que la solution à 50 % présente à 20 degrés C une viscosité de 80 à 110 cP; on ajoute 40 à 200 mmol d'ammoniac et 0,1 à 0,3 mole d'urée et on fait réagir à 70-95 degrés C pendant 15-45 mn jusqu'à ce que la solution à 50 % présente à 20 degrés C une viscosité de 85 à 125 cP. Selon l'invention on ajoute à la première étape, à raison de 1 à 10 %, un produit de polymérisation sous forme d'émulsion ou de suspension, formé de monomères de formule :Preparation of solutions of curable urea-formaldehyde resins. An aqueous solution of urea and formaldehyde in a molar ratio of 1: 1.5 to 1: 2.5 is reacted at 70-95 degrees C for 10-30 minutes with 0.2 to 1.0 mmol of a aminosulfonic acid and 20 to 100 mmol of ammonia per mole of urea, until the 50% solution has at 20 degrees C a viscosity of 55 to 65 c P; 0.8 to 10 mmol of an aminosulfonic acid is added, a pH of 4.0 to 4.5 is maintained with ammonia for 10-25 minutes at 70-95 degrees C until the solution is 50% has a viscosity of 80 to 110 cP at 20 degrees C; 40-200 mmol of ammonia and 0.1-0.3 mole of urea are added and reacted at 70-95 degrees C for 15-45 minutes until the 50% solution is present at 20 degrees C a viscosity of 85 to 125 cP. According to the invention, a polymerization product in the form of an emulsion or a suspension, formed of monomers of formula, is added in the first step at a rate of 1 to 10%:

FR7822595A 1977-08-01 1978-07-31 PREPARATION OF CURING UREA / FORMALDEHYDE RESIN SOLUTIONS, ESPECIALLY FOR IMPREGNING AND COATING SUPPORT AND PANEL STRIPS Granted FR2399449A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2734638A DE2734638C2 (en) 1977-08-01 1977-08-01 Process for the production of solutions of curable urea-formaldehyde resins for the impregnation and coating of carrier webs for the surface treatment of wood-based panels

Publications (2)

Publication Number Publication Date
FR2399449A1 true FR2399449A1 (en) 1979-03-02
FR2399449B1 FR2399449B1 (en) 1981-07-10

Family

ID=6015372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822595A Granted FR2399449A1 (en) 1977-08-01 1978-07-31 PREPARATION OF CURING UREA / FORMALDEHYDE RESIN SOLUTIONS, ESPECIALLY FOR IMPREGNING AND COATING SUPPORT AND PANEL STRIPS

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498301A2 (en) * 1991-02-07 1992-08-12 H.B. FULLER LICENSING &amp; FINANCING, INC. Process for preparing a watersoluble (form)aldehyde resin and adhesive composition containing the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505766A1 (en) * 1985-02-20 1986-08-21 Cassella Ag, 6000 Frankfurt SULPHONAMIDE DERIVATIVES, THEIR PRODUCTION AND USE
DE102005060758B3 (en) * 2005-12-16 2007-08-30 Kronotec Ag Substrate for inkjet printing for coating a wood-based panel
CN109641413A (en) * 2016-08-24 2019-04-16 沙特基础工业全球技术有限公司 Device and method for manufacturing composite construction

Citations (3)

* 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
FR2287459A1 (en) * 1974-10-11 1976-05-07 Goldschmidt Ag Th PROCESS FOR PREPARING SOLUTIONS OF CURABLE UREA AND FORMALDEHYDE RESINS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536978C3 (en) * 1975-08-20 1979-11-22 Th. Goldschmidt Ag, 4300 Essen Modifiers for amino resins

Patent Citations (3)

* 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
FR2287459A1 (en) * 1974-10-11 1976-05-07 Goldschmidt Ag Th PROCESS FOR PREPARING SOLUTIONS OF CURABLE UREA AND FORMALDEHYDE RESINS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498301A2 (en) * 1991-02-07 1992-08-12 H.B. FULLER LICENSING &amp; FINANCING, INC. Process for preparing a watersoluble (form)aldehyde resin and adhesive composition containing the same
EP0498301A3 (en) * 1991-02-07 1992-11-25 H.B. Fuller Licensing & Financing, Inc. Process for preparing a watersoluble (form)aldehyde resin and adhesive composition containing the same

Also Published As

Publication number Publication date
MX149039A (en) 1983-08-10
GB2003897A (en) 1979-03-21
FR2399449B1 (en) 1981-07-10
DE2734638C2 (en) 1982-12-30
ES472102A1 (en) 1979-02-16
DE2734638A1 (en) 1979-02-15
YU173078A (en) 1982-06-30
YU39425B (en) 1984-12-31
SE433614B (en) 1984-06-04
BE869436A (en) 1978-12-01
SE7808100L (en) 1979-02-02
AU3845078A (en) 1980-01-31
GB2003897B (en) 1982-01-27

Similar Documents

Publication Publication Date Title
DE69224184D1 (en) Process for the preparation of bridged, chiral metallocene catalysts of the bisindenyl type
GB1330932A (en) Phenolic resin condensation product and light-sensitive compositions containing it
HK2290A (en) Oxyanion-catalyzed polymerization
IE802332L (en) Adhesive composition
GB1364343A (en) Process of producing a foundry core composition
ATE36859T1 (en) 4&#39;-DEMETHYL-4-EPIPODOPHYLLOTOXIN DERIVATIVES, PROCESSES FOR THEIR PRODUCTION AND THEIR USE AS MEDICINAL PRODUCTS.
FR2399449A1 (en) PREPARATION OF CURING UREA / FORMALDEHYDE RESIN SOLUTIONS, ESPECIALLY FOR IMPREGNING AND COATING SUPPORT AND PANEL STRIPS
IE32063B1 (en) Fasteners,sealants therefor,and process
GB1485733A (en) Method for treating aqueous waste liquids
GB1455381A (en) Glyoxalacrylamide-formaldehyde-urea wet strength resin
ES2180169T3 (en) DISSOLUTION OF CATALYST FOR THE POLYMERIZATION OF ALFA-OLEFINS.
ES8605544A1 (en) Urea-formaldehyde resin manufacture
GB1340646A (en) Treatment of polyamides
GB1531380A (en) Process for the manufacture of solutions of thermosetting urea-formaldehyde resins
GB1338851A (en) Method of preparing fluoran compounds
CA2012506A1 (en) Azo compounds containing hindered amine moieties with low basicity
KR900016812A (en) Photosensitive bis-trichloromethyl-S-triazine, preparation method thereof and photosensitive composition containing the same
GB1409648A (en) Substituted pyrrolidinemethanol compounds and pharmaceutical compositions thereof
KR840004928A (en) Method for producing a diaryl pigment
GB1502052A (en) Process for manufacturing 3,5-disubstituted butyl-4-hydroxybenzaldehyde
WO1992001018A3 (en) Formaldehyde resin curing agents
ES339608A1 (en) Process for making water-soluble,thermosetting resins of aziridine derivatives
ATE198075T1 (en) USE OF AN AQUEOUS SOLUTION OF A POLYCONDENSATE AS ADDITIVE FOR HYDRAULIC MORTARS
DE3572669D1 (en) Method for the preparation of strictozidin
JPS55147516A (en) Preparation of quinone-type crosslinked redox resin

Legal Events

Date Code Title Description
ST Notification of lapse