ES468631A1 - Procedimiento para la obtencion de metilolmelaminas. - Google Patents

Procedimiento para la obtencion de metilolmelaminas.

Info

Publication number
ES468631A1
ES468631A1 ES468631A ES468631A ES468631A1 ES 468631 A1 ES468631 A1 ES 468631A1 ES 468631 A ES468631 A ES 468631A ES 468631 A ES468631 A ES 468631A ES 468631 A1 ES468631 A1 ES 468631A1
Authority
ES
Spain
Prior art keywords
melamine
moles
methanol
etherified
formaldehyde
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
ES468631A
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.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Publication of ES468631A1 publication Critical patent/ES468631A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/40—Nitrogen atoms
    • C07D251/54—Three nitrogen atoms
    • C07D251/64—Condensation products of melamine with aldehydes; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Paper (AREA)

Abstract

Procedimiento para la obtención de metilolmelaminas, eterizadas con metanol, ampliamente monómeras, que por mol de melamina contienen más de 5 moles de formaldehído y más de 4 moles de grupos metilol eterados con metilo, y que con un contenido en sólidos de como mínimo un 95% a 25ºC poseen una viscosidad inferior a 10 Pa.s, caracterizado porque melamina y formaldehído se hacen reaccionar en proporción molar 1 : 6,2 hasta 1 : 8 en presencia de un catalizador básico en una mezcla de reacción que contiene un 10 hasta 40% en peso de agua y un 40 hasta 20% en peso de metanol, a temperaturas de 40 hasta 60ºC a una suspensión de metilolmelamina y, a continuación, en presencia de un total de 15 ¿ 30 moles de metanol por mol de melamina se eteriza a temperaturas de 25 hasta 50ºC en presencia de un ácido fuerte.
ES468631A 1977-04-09 1978-04-07 Procedimiento para la obtencion de metilolmelaminas. Expired ES468631A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772716006 DE2716006A1 (de) 1977-04-09 1977-04-09 Verfahren zur herstellung weitgehend monomerer methylveraetherter methylolmelamine

Publications (1)

Publication Number Publication Date
ES468631A1 true ES468631A1 (es) 1978-12-01

Family

ID=6006062

Family Applications (1)

Application Number Title Priority Date Filing Date
ES468631A Expired ES468631A1 (es) 1977-04-09 1978-04-07 Procedimiento para la obtencion de metilolmelaminas.

Country Status (8)

Country Link
US (1) US4143016A (es)
AT (1) ATA246978A (es)
DE (1) DE2716006A1 (es)
ES (1) ES468631A1 (es)
FR (1) FR2386531A1 (es)
GB (1) GB1579416A (es)
IT (1) IT1094914B (es)
NL (1) NL7803580A (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839713A1 (de) * 1978-09-13 1980-03-27 Cassella Ag Verfahren zur herstellung weitgehend monomerer methylveraetherter methylolmelamine
DE2915315A1 (de) * 1979-04-14 1980-10-30 Cassella Ag Verfahren zur herstellung von veraetherten methylolaminotriazinen
US4361594A (en) * 1979-09-27 1982-11-30 Ciba-Geigy Corporation Process for advancing etherified aminoplast resins with a guanamine
CA1157196A (en) * 1980-06-04 1983-11-15 Robert S. De Ruiter Alkoxylated amino resins
DE3044151A1 (de) * 1980-11-24 1982-06-24 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Modifizierte aminoplaste
DE3112808A1 (de) 1981-03-31 1982-10-14 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Verfahren zur herstellung von mischungen teilveraetherter methylolmelamine
IT1138115B (it) * 1981-07-28 1986-09-17 Pomponesco Chim Processo per la produzione di esacis(metossimetil)melammina
AT378369B (de) * 1983-08-26 1985-07-25 Krems Chemie Gmbh Verfahren zur herstellung von methylolierten melaminen
DE3901152A1 (de) * 1989-01-17 1990-07-19 Hoechst Ag Flammfeste traegerbahn fuer bitumenbahnen und verfahren zu ihrer herstellung
CN104562689A (zh) * 2013-10-16 2015-04-29 圣戈班磨料磨具有限公司 经氨基树脂处理的背衬材料、及含有使用所述背衬材料的涂附磨具产品和其制备方法
CN114920708B (zh) * 2022-05-27 2024-02-13 山东阳谷华泰化工股份有限公司 一种六羟甲基三聚氰胺的连续化生产方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674948A (en) * 1948-03-27 1952-07-02 Monsanto Chemicals Improvements in or relating to the production of a glazed finish on textile fabrics
US2998410A (en) * 1956-07-09 1961-08-29 American Cyanamid Co Process for the manufacture of methylol melamines and alkylated methylol melamines
US3087837A (en) * 1959-05-06 1963-04-30 American Cyanamid Co Process for treating cellulose containing textile material with an alkylated melamine-formaldehyde reaction product
FR1412707A (fr) * 1963-11-27 1965-10-01 American Cyanamid Co Préparation d'un mélange liquide d'éthers méthyliques de l'hexaméthylol mélamine
NL6412293A (es) * 1963-11-27 1965-05-28
US3322762A (en) * 1964-04-08 1967-05-30 Pittsburgh Plate Glass Co Production of hexamethylol-melamine and hexakis (methoxy-methyl) melamine

Also Published As

Publication number Publication date
NL7803580A (nl) 1978-10-11
IT7822091A0 (it) 1978-04-07
DE2716006A1 (de) 1978-10-19
ATA246978A (de) 1981-11-15
IT1094914B (it) 1985-08-10
GB1579416A (en) 1980-11-19
US4143016A (en) 1979-03-06
FR2386531A1 (fr) 1978-11-03

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