GB984743A - A method for producing aminoplast resins - Google Patents

A method for producing aminoplast resins

Info

Publication number
GB984743A
GB984743A GB2615562A GB2615562A GB984743A GB 984743 A GB984743 A GB 984743A GB 2615562 A GB2615562 A GB 2615562A GB 2615562 A GB2615562 A GB 2615562A GB 984743 A GB984743 A GB 984743A
Authority
GB
United Kingdom
Prior art keywords
paraformaldehyde
formalin
mixture
urea
heating
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
GB2615562A
Inventor
Leslaw Kazimierz Truksa
Eric Parkes
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.)
Fordath Ltd
Original Assignee
Fordath Ltd
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 Fordath Ltd filed Critical Fordath Ltd
Priority to GB2615562A priority Critical patent/GB984743A/en
Publication of GB984743A publication Critical patent/GB984743A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10Condensation 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
    • C08G12/12Ureas; 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)

Abstract

In a process for the production of ureaformaldehyde resins, urea and flaked paraformaldehyde are reacted in aqueous alkaline conditions, with or without formalin present, by heating the mixture to depolymerize the paraformaldehyde, then acidifying and heating to produce condensation. Preferably the urea and paraformaldehyde flakes are added to premixed formalin and NaOH, and the mixture is boiled until the paraformaldehyde is all dissolved, then acidified, e.g. with acetic acid, and further heated until the required viscosity is obtained. An anti-foam agent, e.g. nonyl alcohol, may be present, preferably being added to the formalin -NaOH mixture. Uses: coating sand particles.
GB2615562A 1962-07-07 1962-07-07 A method for producing aminoplast resins Expired GB984743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2615562A GB984743A (en) 1962-07-07 1962-07-07 A method for producing aminoplast resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2615562A GB984743A (en) 1962-07-07 1962-07-07 A method for producing aminoplast resins

Publications (1)

Publication Number Publication Date
GB984743A true GB984743A (en) 1965-03-03

Family

ID=10239234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2615562A Expired GB984743A (en) 1962-07-07 1962-07-07 A method for producing aminoplast resins

Country Status (1)

Country Link
GB (1) GB984743A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453869A1 (en) * 1979-04-09 1980-11-07 Charbonnages Ste Chimique Urea!-formaldehyde! precondensate prodn. from solid formaldehyde - in presence of water and under specific reaction conditions of pH and reactants ratio

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453869A1 (en) * 1979-04-09 1980-11-07 Charbonnages Ste Chimique Urea!-formaldehyde! precondensate prodn. from solid formaldehyde - in presence of water and under specific reaction conditions of pH and reactants ratio

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