ES484113A1 - Procedimiento para la fabricacion de metilolmelaminas sus- tancialmente monomeras - Google Patents

Procedimiento para la fabricacion de metilolmelaminas sus- tancialmente monomeras

Info

Publication number
ES484113A1
ES484113A1 ES484113A ES484113A ES484113A1 ES 484113 A1 ES484113 A1 ES 484113A1 ES 484113 A ES484113 A ES 484113A ES 484113 A ES484113 A ES 484113A ES 484113 A1 ES484113 A1 ES 484113A1
Authority
ES
Spain
Prior art keywords
formaldehyde
melamine
mols
preparation
methylated methylol
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
ES484113A
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.)
Sanofi Aventis Deutschland GmbH
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6049278&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES484113(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cassella AG, Cassella Farbwerke Mainkur AG filed Critical Cassella AG
Publication of ES484113A1 publication Critical patent/ES484113A1/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
    • 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
    • C08G12/40—Chemically modified polycondensates
    • C08G12/42—Chemically modified polycondensates by etherifying
    • C08G12/424—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds
    • C08G12/425—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds based on triazines
    • C08G12/427—Melamine

Abstract

Procedimiento para la fabricación de metilolmelaminas sustancialmente monómeras, eterificadas con metilo, que contienen por mol de melanina arriba de 5 moles de formaldehído y arriba de 4 moles de grupos metilol eterificados con metilo y que con un contenido de sólidos de por lo menos 95% en peso a 25ºC tienen una viscosidad inferior a 20 Pa.s, caracterizado porque la melamina se somete a metilolación con una solución acuosa de formalina que contiene entre 30 y 50% en peso de formaldehído y que ha sido ajustada a un pH de ó, 7 a 7, 3 en una relación molar de 1: 6,5 a 1: 8 durante 1-1/2 a 5 horas a 50 - 85º C y la suspensión así obtenida de metilolmelamina se eterifica con 15 a 30 moles de metanol por mol de melamina a temperaturas comprendidas entre 30 y 60ºC en presencia de un ácido fuerte.
ES484113A 1978-09-13 1979-09-12 Procedimiento para la fabricacion de metilolmelaminas sus- tancialmente monomeras Expired ES484113A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782839713 DE2839713A1 (de) 1978-09-13 1978-09-13 Verfahren zur herstellung weitgehend monomerer methylveraetherter methylolmelamine

Publications (1)

Publication Number Publication Date
ES484113A1 true ES484113A1 (es) 1980-05-16

Family

ID=6049278

Family Applications (1)

Application Number Title Priority Date Filing Date
ES484113A Expired ES484113A1 (es) 1978-09-13 1979-09-12 Procedimiento para la fabricacion de metilolmelaminas sus- tancialmente monomeras

Country Status (5)

Country Link
US (1) US4223141A (es)
EP (1) EP0008683B1 (es)
AT (1) ATE754T1 (es)
DE (2) DE2839713A1 (es)
ES (1) ES484113A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5017699A (en) * 1990-07-19 1991-05-21 Suen Tzeng J Process for preparing polyalkoxymethylmelamines
DE19709696A1 (de) * 1997-03-10 1998-09-17 Basf Ag Wässerige Holzwerkstoff-Bindemittel
DE19835114A1 (de) * 1998-08-04 2000-02-10 Basf Ag Mikrokapseln aus formaldehydarmen Melamin-Formaldehydharzen
DE102005058855A1 (de) * 2005-12-09 2007-06-14 Basf Ag Veretherte Melamin-Formaldehydkondensate mit hohem Feststoffgehalt und geringer Viskosität
CN108623766A (zh) * 2018-05-23 2018-10-09 重庆建峰浩康化工有限公司 高亚氨基甲醚化阻燃密胺树脂及其生产方法
CN108727548B (zh) * 2018-05-23 2021-03-23 重庆建峰浩康化工有限公司 环保型阻燃水溶性高亚氨基密胺树脂及其生产方法
CN108623994A (zh) * 2018-05-23 2018-10-09 重庆建峰浩康化工有限公司 以三羟甲基三聚氰胺生产丁醚化阻燃密胺树脂
WO2020041921A1 (zh) * 2018-08-27 2020-03-05 江苏国立化工科技有限公司 六甲氧基甲基密胺树脂橡胶粘合剂的制备工艺
CN109293863A (zh) * 2018-09-07 2019-02-01 沈阳化工大学 一种一锅法制备三聚氰胺甲醛树脂方法
CN111808250B (zh) * 2020-06-30 2023-06-16 杭州传化精细化工有限公司 一种低甲醛硬挺剂的制备方法
CN112011021A (zh) * 2020-09-28 2020-12-01 山东阳谷华泰化工股份有限公司 一种甲醚化三聚氰胺甲醛树脂的制备方法
CN113956415A (zh) * 2021-11-09 2022-01-21 山东阳谷华泰化工股份有限公司 一种水性亚氨基甲醚化三聚氰胺甲醛树脂的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611013A (en) * 1942-02-05 1948-10-25 Chem Ind Basel Manufacture of highly etherified aminotriazine-formaldehyde condensation products
US2645625A (en) * 1951-10-31 1953-07-14 Monsanto Chemicals Methods of concentrating solutions
FR1086826A (fr) * 1952-06-28 1955-02-16 Cassella Farbwerke Mainkur Ag Composés méthylolés d'aminotriazines éthérifiés par du méthanol, insolubles dans l'eau ou miscibles avec peu d'eau seulement et leur préparation
US2998410A (en) * 1956-07-09 1961-08-29 American Cyanamid Co Process for the manufacture of methylol melamines and alkylated methylol melamines
CH432839A (de) * 1962-03-01 1967-03-31 Sueddeutsche Kalkstickstoff Verfahren zur Herstellung mit Wasser mischbarer Methylolmelaminalkylätherharze
DE2005166C3 (de) * 1970-02-05 1975-05-15 Chemische Fabrik Pfersee Gmbh, 8900 Augsburg Verfahren zur Herstellung wasserlöslicher, verätherter Methylolmelamine
DE2716006A1 (de) * 1977-04-09 1978-10-19 Cassella Farbwerke Mainkur Ag Verfahren zur herstellung weitgehend monomerer methylveraetherter methylolmelamine

Also Published As

Publication number Publication date
DE2839713A1 (de) 1980-03-27
US4223141A (en) 1980-09-16
DE2962287D1 (en) 1982-04-15
EP0008683A1 (de) 1980-03-19
EP0008683B1 (de) 1982-03-17
ATE754T1 (de) 1982-04-15

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