ES8600337A1 - Un procedimiento para preparar una resina de urea-formaldehido - Google Patents

Un procedimiento para preparar una resina de urea-formaldehido

Info

Publication number
ES8600337A1
ES8600337A1 ES538374A ES538374A ES8600337A1 ES 8600337 A1 ES8600337 A1 ES 8600337A1 ES 538374 A ES538374 A ES 538374A ES 538374 A ES538374 A ES 538374A ES 8600337 A1 ES8600337 A1 ES 8600337A1
Authority
ES
Spain
Prior art keywords
urea
formaldehyde
mole ratio
preparing
temperature
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
ES538374A
Other languages
English (en)
Other versions
ES538374A0 (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.)
Enigma NV
Original Assignee
Enigma NV
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 Enigma NV filed Critical Enigma NV
Publication of ES538374A0 publication Critical patent/ES538374A0/es
Publication of ES8600337A1 publication Critical patent/ES8600337A1/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

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR UNA RESINA DE UREA-FORMALDEHIDO.COMPRENDE: A) MEZCLAR UREA Y FORMALDEHIDO EN UNA RELACION MOLAR DE 1,0:2,0; B) CALENTAR LA MEZCLA A UNA TEMPERATURA DE 80 A 85JC EN CONDICIONES ALCALINAS; C) AJUSTAR EL PH A UN VALOR COMPRENDIDO EN EL INTERVALO DE 7,0 A 7,4 Y CONDENSAR LA MEZCLA DURANTE 30 MINUTOS; D) AJUSTAR EL PH EN EL INTERVALO DE 4,8 A 5,8 Y CONTINUAR LA CONDENSACION, HASTA QUE LA VISCOSIDAD ALCANZA VALORES COMPRENDIDOS ENTRE 15 Y 50 MPA -S; E) AJUSTAR LA RELACION MOLAR DE UREA A FORMALDEHIDO EN EL INTERVALO DE 1:1,8 A 1:1,90, Y CONTINUAR LA CONDENSACION HASTA QUE SE ALCANZA UNA VISCOSIDAD COMPRENDIDA EN EL INTERVALO DE 35 A 80 MPA.S; F) AJUSTAR EL PH A UN VALOR DE 5,8 A 6,5 Y AJUSTAR LA RELACION MOLAR FINAL DE UREA A FORMALDEHIDO A UN VALOR ENTRE 1,0:1,0 Y 1,0:1,3, POR ADICION DE UREA, Y DEJAR QUE DESCIENDA LA TEMPERATURA; Y G) AJUSTAR, CUANDO LA TEMPERATURA HA DESCENDIDO POR DEBAJO DE 50JC, EL PH FINAL A UN VALOR COMPRENDIDO DENTRO DEL INTERVALO DE 7 A 8.
ES538374A 1983-12-09 1984-12-07 Un procedimiento para preparar una resina de urea-formaldehido Expired ES8600337A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08332962A GB2150939B (en) 1983-12-09 1983-12-09 A process for preparing urea-formaldehyde resins
CN85104298.8A CN1005718B (zh) 1983-12-09 1985-06-04 具有极低甲醛对尿素摩尔比的脲甲醛树脂的制备方法

Publications (2)

Publication Number Publication Date
ES538374A0 ES538374A0 (es) 1985-10-01
ES8600337A1 true ES8600337A1 (es) 1985-10-01

Family

ID=25741730

Family Applications (1)

Application Number Title Priority Date Filing Date
ES538374A Expired ES8600337A1 (es) 1983-12-09 1984-12-07 Un procedimiento para preparar una resina de urea-formaldehido

Country Status (34)

Country Link
US (1) US4603191A (es)
JP (1) JPS6134010A (es)
CN (1) CN1005718B (es)
AT (1) AT383355B (es)
AU (1) AU569207B2 (es)
BE (1) BE901236A (es)
BG (1) BG43694A3 (es)
BR (1) BR8406271A (es)
CA (1) CA1242840A (es)
CH (1) CH663213A5 (es)
CS (1) CS256385B2 (es)
DD (1) DD235877A5 (es)
DE (1) DE3444203A1 (es)
DK (1) DK585284A (es)
ES (1) ES8600337A1 (es)
FI (1) FI79332B (es)
FR (1) FR2556351B1 (es)
GB (1) GB2150939B (es)
GR (1) GR81139B (es)
HU (1) HU194921B (es)
IL (1) IL73647A (es)
IT (1) IT1178271B (es)
LU (1) LU85673A1 (es)
NL (1) NL8403699A (es)
NO (1) NO160852B (es)
NZ (1) NZ210396A (es)
PL (1) PL142931B1 (es)
PT (1) PT79643B (es)
RO (1) RO90378A (es)
SE (1) SE458363B (es)
SG (1) SG57787G (es)
SU (1) SU1454254A3 (es)
YU (1) YU44480B (es)
ZA (1) ZA849088B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192005B (en) * 1986-06-27 1989-12-13 Ciba Geigy Ag Process for the preparation of urea-formaldehyde resins
GB8715305D0 (en) * 1987-06-30 1987-08-05 Ciba Geigy Ag Process
FR2625207B1 (fr) * 1987-12-23 1991-12-06 Charbonnages Ste Chimique Nouveau procede de preparation de resines aminoplastes a tres faible degagement de formol
FR2625204B1 (fr) * 1987-12-23 1991-12-06 Charbonnages Ste Chimique Nouveau procede de fabrication des resines uree-formol
DD283732A7 (de) * 1988-10-21 1990-10-24 ������@�����`������@ ���@������� k�� Verfahren zur herstellung eines reaktiven harnstoff-formaldehyd-harz-leimes
US5110898A (en) * 1988-11-28 1992-05-05 Georgia-Pacific Corporation Method for manufacturing amino-aldehyde compositions
US4960856A (en) * 1988-11-28 1990-10-02 Georgia-Pacific Corporation Urea-formaldehyde compositions and method of manufacture
US5362842A (en) * 1993-09-10 1994-11-08 Georgia Pacific Resins, Inc. Urea-formaldehyde resin composition and method of manufacture thereof
EP0743331A4 (de) * 1994-02-08 1997-01-07 N T Predpr Ligand Verfahren zum herstellen von einem carbamid-formaldehyd-harz und ein kondensat zu seiner herstellung
US5674971A (en) * 1995-06-06 1997-10-07 Georgia-Pacific Resins, Inc. Urea-formaldehyde resin composition and method of preparation thereof
US5684118A (en) * 1996-03-26 1997-11-04 Georgia-Pacific Resins, Inc. Method of scavenging formaldehyde using a low mole ratio melamine-urea-formaldehyde resin
US5681917A (en) * 1996-03-26 1997-10-28 Georgia-Pacific Resins, Inc. Low mole ratio melamine-urea-formaldehyde resin
US6548625B2 (en) 2001-03-23 2003-04-15 Cytec Technology Corp. Stable liquid melamine urea formaldehyde resins, hardeners, adhesive compositions, and methods for making same
CN100344720C (zh) * 2006-03-30 2007-10-24 浙江林学院 环保型低成本脲醛树脂胶生产方法
CN101289567B (zh) * 2007-04-16 2010-07-21 天津优宁福姆建筑节能科技开发有限公司 一种脲醛树脂发泡保温材料
JP2010537844A (ja) * 2007-09-21 2010-12-09 サン ゴバン アブレシブ インコーポレーティド 研磨製品用メラミンメチロール
US20090291286A1 (en) * 2008-03-04 2009-11-26 Ziming Shen Laminate manufacturing system, method, and article of manufacture
CN101245129B (zh) * 2008-04-01 2010-06-02 河北大学 一种自升温生产脲醛树脂的方法
WO2012064800A2 (en) * 2010-11-10 2012-05-18 Georgia-Pacific Chemicals Llc Methods for making and using amino-aldehyde resins
RU2537620C2 (ru) * 2013-04-25 2015-01-10 Вячеслав Ефимович Цветков Способ изготовления карбамидоформальдегидного олигомера

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810710A (en) * 1955-06-10 1957-10-22 Borden Co Urea formaldehyde condensation product
US3183200A (en) * 1961-04-27 1965-05-11 Hercules Powder Co Ltd Preparation of liquid urea-formaldehyde condensates and condensates so produced
US3816376A (en) * 1971-03-02 1974-06-11 Basf Ag Continuous manufacture of amino resin solutions
DE2334380B1 (de) * 1973-07-06 1974-09-05 Basf Ag Verfahren zur Herstellung eines Holzleims
FI70385C (fi) * 1978-04-28 1991-08-27 Casco Ab Saett att framstaella cellulosabaserade skivmaterial och komposition haerfoer. al och komposition haerfoer
IT1209203B (it) * 1980-04-10 1989-07-16 Montedison Spa Collante ureico a basso sviluppo di formaldeide ed alto valore di tack.
US4501851A (en) * 1982-09-10 1985-02-26 Borden, Inc. Urea-formaldehyde precursor
US4410685A (en) * 1982-09-10 1983-10-18 Borden, Inc. Hydrolytically stable urea-formaldehyde resins and process for manufacturing them
US4409293A (en) * 1982-09-10 1983-10-11 Borden, Inc. Wood composites of low formaldehyde emission

Also Published As

Publication number Publication date
AT383355B (de) 1987-06-25
IT1178271B (it) 1987-09-09
DD235877A5 (de) 1986-05-21
ATA375584A (de) 1986-11-15
AU569207B2 (en) 1988-01-21
DK585284D0 (da) 1984-12-07
CS938984A2 (en) 1987-08-13
FI844697L (fi) 1985-06-10
CN85104298A (zh) 1987-01-14
FR2556351A1 (fr) 1985-06-14
ES538374A0 (es) 1985-10-01
NL8403699A (nl) 1985-07-01
SE8406166L (sv) 1985-06-10
JPS6134010A (ja) 1986-02-18
JPH0510368B2 (es) 1993-02-09
SU1454254A3 (ru) 1989-01-23
PT79643A (en) 1985-01-01
CA1242840A (en) 1988-10-04
FI79332B (fi) 1989-08-31
IT8449269A1 (it) 1986-06-07
DE3444203A1 (de) 1985-06-20
PT79643B (en) 1986-10-21
GB8332962D0 (en) 1984-01-18
NO844905L (no) 1985-06-10
AU3609884A (en) 1985-06-13
SE458363B (sv) 1989-03-20
BG43694A3 (en) 1988-07-15
BR8406271A (pt) 1985-10-01
IL73647A0 (en) 1985-02-28
BE901236A (fr) 1985-06-07
NO160852B (no) 1989-02-27
SG57787G (en) 1987-09-18
LU85673A1 (de) 1985-07-24
CH663213A5 (de) 1987-11-30
CN1005718B (zh) 1989-11-08
RO90378A (ro) 1986-10-30
GR81139B (en) 1985-01-09
NZ210396A (en) 1987-05-29
PL250797A1 (en) 1985-07-30
ZA849088B (en) 1985-07-31
SE8406166D0 (sv) 1984-12-05
YU207684A (en) 1986-08-31
IT8449269A0 (it) 1984-12-07
GB2150939A (en) 1985-07-10
YU44480B (en) 1990-08-31
GB2150939B (en) 1987-02-04
FI844697A0 (fi) 1984-11-29
DK585284A (da) 1985-06-10
IL73647A (en) 1988-02-29
HUT38376A (en) 1986-05-28
US4603191A (en) 1986-07-29
CS256385B2 (en) 1988-04-15
PL142931B1 (en) 1987-12-31
FR2556351B1 (fr) 1992-07-24
HU194921B (en) 1988-03-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970401