GB856466A - Improvements in sulfonated urea-thiourea formaldehyde resins - Google Patents

Improvements in sulfonated urea-thiourea formaldehyde resins

Info

Publication number
GB856466A
GB856466A GB10537/57A GB1053757A GB856466A GB 856466 A GB856466 A GB 856466A GB 10537/57 A GB10537/57 A GB 10537/57A GB 1053757 A GB1053757 A GB 1053757A GB 856466 A GB856466 A GB 856466A
Authority
GB
United Kingdom
Prior art keywords
added
product
mols
bisulphite
thiourea
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
GB10537/57A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB856466A publication Critical patent/GB856466A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423Amino-aldehyde resins
    • 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
    • C08G12/40Chemically modified polycondensates

Landscapes

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

Abstract

A hydrophilic thermosetting resin is produced by reacting 1 mol of urea at a temperature above 40 DEG C. and at a pH of 7 to 9 with 2-6,5 mols of a water-soluble aldehyde in the presence of ,01-,04 mols of bisulphite per mol of aldehyde, polymerizing the reaction product at a pH of 2,2-3,8 at above 40 DEG C., adjusting the pH to 7,0 to 9,0, reacting 0,3-2,5 mols of thiourea with the product, adjusting the pH to 3,5 to 5,5 and alkylating the product with 0,3-4 mols of a saturated aliphatic alcohol having 1-3 carbon atoms, and adjusting the pH to the alkaline side. The alcohol may be added at any stage of the sequence of reactions. The products are stable, i.e. do not deposit floc after standing for two weeks at 25 DEG C. and do not precipitate when diluted with 50 volumes of water at 25 DEG C. Suitable aldehydes are formaldehyde, acetaldehyde, propionaldehyde and glyoal. Formaldehyde may be used as paraformaldehyde. The preferred bisulphite is NaHSO3. Sulphites which yield bisulphite may be used. In a typical example, methanol, formalin, urea NaHSO3 and triethanolamine were heated to 50 DEG C. and an initial pH of 8,1. Paraformaldehyde was added with constant stirring and the mixture refluxed. The pH was adjusted to about 3 with oxalic acid the mixture further refluxed and the pH adjusted to 7-3 with triethanolamine. The mixture was cooled, methanol and thiourea added and the mixture stirred at 50-55 DEG C. Oxalic acid was added to bring the pH to about 5, the mixture further heated at 50-55 DEG C. and then cooled and triethanolamine added to bring the pH to 7,5-8. "Hy-Flor" filtering aid (Registered Trade Mark) was added and the product filtered and concentrated to 80% solids. The product was hydrophilic and stable. The products may be applied, e.g. by pad baths or spraying to fabrics, e.g. nylon netting to impart flame-retardant and stiff, resilent finishes. They are also said to be useful in paper-making.ALSO:Textile fabrics, particularly nylon net, are given a stiff, springy, resilient hand by applying to them, e.g. by padding or spraying, an aqueous solution of a condensate prepared from urea, thiourea, an aldehyde and a bisulphite (see Group IV(a)), and drying and curing the condensate by heating with ammonium bromide or chloride as curing catalyst.
GB10537/57A 1956-04-30 1957-04-01 Improvements in sulfonated urea-thiourea formaldehyde resins Expired GB856466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US856466XA 1956-04-30 1956-04-30

Publications (1)

Publication Number Publication Date
GB856466A true GB856466A (en) 1960-12-14

Family

ID=22193024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10537/57A Expired GB856466A (en) 1956-04-30 1957-04-01 Improvements in sulfonated urea-thiourea formaldehyde resins

Country Status (1)

Country Link
GB (1) GB856466A (en)

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