ES467341A1 - Preparation of aqueous melamine-formaldehyde resin solutions - Google Patents

Preparation of aqueous melamine-formaldehyde resin solutions

Info

Publication number
ES467341A1
ES467341A1 ES467341A ES467341A ES467341A1 ES 467341 A1 ES467341 A1 ES 467341A1 ES 467341 A ES467341 A ES 467341A ES 467341 A ES467341 A ES 467341A ES 467341 A1 ES467341 A1 ES 467341A1
Authority
ES
Spain
Prior art keywords
melamine
preparation
formaldehyde resin
resin solutions
aqueous melamine
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
ES467341A
Other languages
Spanish (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.)
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 ES467341A1 publication Critical patent/ES467341A1/en
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
    • C08G12/40—Chemically modified polycondensates
    • C08G12/42—Chemically modified polycondensates by etherifying
    • C08G12/428—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic and acyclic or carbocyclic compounds
    • 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
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
    • C08G12/32—Melamines
    • 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
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
    • C08G12/36—Ureas; Thioureas
    • C08G12/38—Ureas; Thioureas and melamines
    • 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
    • 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
    • D21H17/51—Triazines, e.g. melamine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Process for obtaining aqueous solutions of melamine resin, characterized in that melamine is reacted with 1.5-8 moles of aqueous formaldehyde per mole of melamine first in alkaline solution at a temperature of 60-120ºC until the formation of methyl compounds and then it is condensed at temperatures of 25-65ºC and ph values of 4 - 6.8 at least until a sample, when dripping with water or saturated salt solution at 20º c, becomes clouded and the condensation is stopped by putting alkaline. (Machine-translation by Google Translate, not legally binding)
ES467341A 1977-04-04 1978-02-27 Preparation of aqueous melamine-formaldehyde resin solutions Expired ES467341A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2715020A DE2715020C2 (en) 1977-04-04 1977-04-04 Process for the preparation of aqueous melamine / urea resin solutions

Publications (1)

Publication Number Publication Date
ES467341A1 true ES467341A1 (en) 1979-07-01

Family

ID=6005622

Family Applications (1)

Application Number Title Priority Date Filing Date
ES467341A Expired ES467341A1 (en) 1977-04-04 1978-02-27 Preparation of aqueous melamine-formaldehyde resin solutions

Country Status (9)

Country Link
JP (1) JPS53123492A (en)
AT (1) ATA232878A (en)
DE (1) DE2715020C2 (en)
ES (1) ES467341A1 (en)
FR (1) FR2386568A1 (en)
GB (1) GB1581116A (en)
IT (1) IT1158678B (en)
NL (1) NL7803266A (en)
ZA (1) ZA781886B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH648570A5 (en) * 1981-10-26 1985-03-29 Sika Ag POLYCONDENSATION PRODUCT.
DE3905913A1 (en) * 1989-02-25 1990-09-13 Basf Ag AMINO SOLVENT SOLUTIONS WITH LOW ELECTRICAL CAPACITY
DE10238807B4 (en) * 2002-08-23 2007-05-24 Dakor Melamin Imprägnierungen Gmbh Process for the preparation of phenol-free decorative laminates
US7244504B2 (en) 2005-02-17 2007-07-17 Fritz Ackner Phenol-free decorative laminates and method of producing the same
US7235303B2 (en) 2005-02-17 2007-06-26 Dakor Melamin Impragnierungen Gmbh Phenol-free decorative laminates and method of producing the same
DE102005022228A1 (en) * 2005-05-10 2006-11-23 Ami-Agrolinz Melamine International Gmbh Melamine-formaldehyde resin solution and process for its preparation
JP5226954B2 (en) * 2007-02-02 2013-07-03 永大産業株式会社 Method for producing melamine resin
CN112359643A (en) * 2020-10-13 2021-02-12 常州太乙新材料有限公司 High-release thermal sublimation coating material and use method thereof
CN114108365A (en) * 2021-12-06 2022-03-01 东莞市高益装饰材料有限公司 Melamine softening coated paper and production process thereof
CN114960294A (en) * 2022-06-01 2022-08-30 上海贝辉木业有限公司 Anti-cracking impregnated paper and preparation method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529856A (en) * 1944-12-18 1950-11-14 American Cyanamid Co Processes of preparing water-soluble melamine-formaldehyde resins and products thereof
US2797206A (en) * 1952-12-02 1957-06-25 American Cyanamid Co Stable melamine-urea resin syrup
CH432839A (en) * 1962-03-01 1967-03-31 Sueddeutsche Kalkstickstoff Process for the preparation of water-miscible methylol melamine alkyl ether resins
DE1595032C3 (en) * 1964-08-08 1974-09-12 Nautschno-Issledowatelskij Institut Plastitscheskich Mass, Moskau Process for the continuous production of molding compounds based on melamine resin
DE2005166C3 (en) * 1970-02-05 1975-05-15 Chemische Fabrik Pfersee Gmbh, 8900 Augsburg Process for the production of water-soluble, etherified methylolmelamines
FR2309575A1 (en) * 1975-04-30 1976-11-26 Saint Gobain AQUEOUS SOLUTIONS OF ETHERIFIED MELAMINE-FORMALDEHYDE RESINS WITH A LONG SHELF LIFE AND LOW FREE FORMALDEHYDE CONTENT
FR2254564A1 (en) * 1973-12-17 1975-07-11 Valentine Cie Vernis Novel melamine formaldehyde precondensates - stabilisers for non aqueous vinyl copolymers dispersions
JPS5522373A (en) * 1978-08-07 1980-02-18 Mitsuishi Fukai Tekkosho:Kk Mixer for powdery granular material

Also Published As

Publication number Publication date
GB1581116A (en) 1980-12-10
JPS53123492A (en) 1978-10-27
IT1158678B (en) 1987-02-25
NL7803266A (en) 1978-10-06
FR2386568A1 (en) 1978-11-03
DE2715020A1 (en) 1978-10-12
IT7821920A0 (en) 1978-04-03
ZA781886B (en) 1979-03-28
ATA232878A (en) 1984-06-15
DE2715020C2 (en) 1983-04-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201