BG43694A3 - Метод за получаване на карбамидформалдехидна смола - Google Patents

Метод за получаване на карбамидформалдехидна смола

Info

Publication number
BG43694A3
BG43694A3 BG067779A BG6777984A BG43694A3 BG 43694 A3 BG43694 A3 BG 43694A3 BG 067779 A BG067779 A BG 067779A BG 6777984 A BG6777984 A BG 6777984A BG 43694 A3 BG43694 A3 BG 43694A3
Authority
BG
Bulgaria
Prior art keywords
urea
formaldehyde
resin
adjusted
molar ratio
Prior art date
Application number
BG067779A
Other languages
English (en)
Inventor
Ho Kong
Original Assignee
Enigma N.V.
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 N.V. filed Critical Enigma N.V.
Publication of BG43694A3 publication Critical patent/BG43694A3/bg

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

Abstract

Методът намира приложение за производството на карбамидформалдехидна смола, която се използва като свързващо вещество в гетинакса, шперплата и др. При него карбамидът и формалдехидът се смесват в молно съотношение 1:2. Сместа се кондензира за 30 мин при рн от 7,0 до 7,4 и при температура между 80 и 85'с. Кондензацията продължава при рн 4,8 до 5,8 и при същата температура, докато високозността достигне 15-50 мра. Молното съотношение на карбамида спрямо формалдехида се довежда до стойност от 1:1,80 до 1:1,90 чрез добавка на карбамид. Кондензацията продължава при кисели условия при същата температура, докато вискозността достигне 35 до 80 мра. При рн от 5,8 до 6,5 молното съотношение на карбамида спрямо формалдехида се наглася до стойност между 1,0:1,0 и 1,0:1,30 чрез добавка на карбамид. Температурата се оставя да се понижи, а когато се понижи под 50'с, рн се довежда до стой ност от 7,0 до 8,0. 3 претенции
BG067779A 1983-12-09 1984-12-05 Метод за получаване на карбамидформалдехидна смола BG43694A3 (bg)

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 (1)

Publication Number Publication Date
BG43694A3 true BG43694A3 (bg) 1988-07-15

Family

ID=25741730

Family Applications (1)

Application Number Title Priority Date Filing Date
BG067779A BG43694A3 (bg) 1983-12-09 1984-12-05 Метод за получаване на карбамидформалдехидна смола

Country Status (34)

Country Link
US (1) US4603191A (bg)
JP (1) JPS6134010A (bg)
CN (1) CN1005718B (bg)
AT (1) AT383355B (bg)
AU (1) AU569207B2 (bg)
BE (1) BE901236A (bg)
BG (1) BG43694A3 (bg)
BR (1) BR8406271A (bg)
CA (1) CA1242840A (bg)
CH (1) CH663213A5 (bg)
CS (1) CS256385B2 (bg)
DD (1) DD235877A5 (bg)
DE (1) DE3444203A1 (bg)
DK (1) DK585284A (bg)
ES (1) ES538374A0 (bg)
FI (1) FI79332B (bg)
FR (1) FR2556351B1 (bg)
GB (1) GB2150939B (bg)
GR (1) GR81139B (bg)
HU (1) HU194921B (bg)
IL (1) IL73647A (bg)
IT (1) IT1178271B (bg)
LU (1) LU85673A1 (bg)
NL (1) NL8403699A (bg)
NO (1) NO160852B (bg)
NZ (1) NZ210396A (bg)
PL (1) PL142931B1 (bg)
PT (1) PT79643B (bg)
RO (1) RO90378A (bg)
SE (1) SE458363B (bg)
SG (1) SG57787G (bg)
SU (1) SU1454254A3 (bg)
YU (1) YU44480B (bg)
ZA (1) ZA849088B (bg)

Families Citing this family (23)

* 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
US4960856A (en) * 1988-11-28 1990-10-02 Georgia-Pacific Corporation Urea-formaldehyde compositions and method of manufacture
US5110898A (en) * 1988-11-28 1992-05-05 Georgia-Pacific Corporation Method for manufacturing amino-aldehyde compositions
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
US5681917A (en) * 1996-03-26 1997-10-28 Georgia-Pacific Resins, Inc. Low mole ratio melamine-urea-formaldehyde resin
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
RU2160744C1 (ru) * 1999-08-06 2000-12-20 Горловское открытое акционерное общество "Концерн Стирол" Способ получения карбамидоформальдегидной смолы
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
CN101796116B (zh) * 2007-09-21 2013-04-24 圣戈班磨料磨具有限公司 用于磨料产品的羟甲基三聚氰胺
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
RU2437897C1 (ru) * 2010-05-25 2011-12-27 Открытое акционерное общество "Акрон" Способ получения карбамидоформальдегидных смол
AU2011326615B2 (en) * 2010-11-10 2015-09-17 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
US20240301198A1 (en) * 2023-03-09 2024-09-12 Hexion Inc. Urea Formaldehyde Resin Compositions, Methods of Making, and Uses Thereof

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.
US4409293A (en) * 1982-09-10 1983-10-11 Borden, Inc. Wood composites of low formaldehyde emission
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

Also Published As

Publication number Publication date
CH663213A5 (de) 1987-11-30
CN1005718B (zh) 1989-11-08
IL73647A0 (en) 1985-02-28
FI79332B (fi) 1989-08-31
DK585284D0 (da) 1984-12-07
CS256385B2 (en) 1988-04-15
JPH0510368B2 (bg) 1993-02-09
LU85673A1 (de) 1985-07-24
CN85104298A (zh) 1987-01-14
ZA849088B (en) 1985-07-31
ATA375584A (de) 1986-11-15
AU569207B2 (en) 1988-01-21
DK585284A (da) 1985-06-10
NO160852B (no) 1989-02-27
AT383355B (de) 1987-06-25
NO844905L (no) 1985-06-10
GB8332962D0 (en) 1984-01-18
BE901236A (fr) 1985-06-07
IT1178271B (it) 1987-09-09
CA1242840A (en) 1988-10-04
GB2150939A (en) 1985-07-10
NZ210396A (en) 1987-05-29
PL250797A1 (en) 1985-07-30
PT79643B (en) 1986-10-21
IL73647A (en) 1988-02-29
SG57787G (en) 1987-09-18
JPS6134010A (ja) 1986-02-18
SE8406166D0 (sv) 1984-12-05
GR81139B (en) 1985-01-09
GB2150939B (en) 1987-02-04
YU207684A (en) 1986-08-31
DE3444203A1 (de) 1985-06-20
AU3609884A (en) 1985-06-13
NL8403699A (nl) 1985-07-01
SE8406166L (sv) 1985-06-10
PL142931B1 (en) 1987-12-31
IT8449269A1 (it) 1986-06-07
PT79643A (en) 1985-01-01
HUT38376A (en) 1986-05-28
ES8600337A1 (es) 1985-10-01
FR2556351B1 (fr) 1992-07-24
HU194921B (en) 1988-03-28
CS938984A2 (en) 1987-08-13
FI844697L (fi) 1985-06-10
FR2556351A1 (fr) 1985-06-14
DD235877A5 (de) 1986-05-21
US4603191A (en) 1986-07-29
ES538374A0 (es) 1985-10-01
FI844697A0 (fi) 1984-11-29
RO90378A (ro) 1986-10-30
YU44480B (en) 1990-08-31
IT8449269A0 (it) 1984-12-07
SU1454254A3 (ru) 1989-01-23
BR8406271A (pt) 1985-10-01
SE458363B (sv) 1989-03-20

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