GB866411A - Cationic aminoplast resins - Google Patents

Cationic aminoplast resins

Info

Publication number
GB866411A
GB866411A GB32816/58A GB3281658A GB866411A GB 866411 A GB866411 A GB 866411A GB 32816/58 A GB32816/58 A GB 32816/58A GB 3281658 A GB3281658 A GB 3281658A GB 866411 A GB866411 A GB 866411A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
resins
cationic
urea
aminoplast resins
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
GB32816/58A
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.)
Nopco Chemical Co
Original Assignee
Nopco Chemical 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 Nopco Chemical Co filed Critical Nopco Chemical Co
Publication of GB866411A publication Critical patent/GB866411A/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
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/043—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24
    • C08G12/046—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24 one being urea or thiourea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16—Organic material
    • B01J39/18—Macromolecular compounds
    • B01J39/19—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Landscapes

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

Abstract

Cationic aminoplast resins are prepared by mixing 1 mol dicyandiamide with 2,5-3,5 mols formaldehyde in presence of sufficient watersoluble carboxylic acid to reduce the pH below 2,5, condensing the reactants at a temperature up to 96 DEG C. while keeping the pH below 7, then adding sufficient urea to form monomethylol urea with the unreacted formaldehyde and refluxing the mixture for a period not exceeding 5 hours. Formalin is the preferred source of formaldehyde, but paraformaldehyde or trioxane may be used together with water. Suitable carboxylic acids are formic, acetic, butyric, oxalic, malonic, glutaric, citric, lactic or glycolic. The final syrupy product is preferably adjusted to a pH of 6-7. The products are useful for tanning leather if desired in conjunction with anionic resins such as a naphthalene- or phenolsulphonic acid condensate which causes precipitation of the cationic resins of the invention. Specification 314,358, German Specifications 323,665 and 325,467 and U.S.A. Specification 2,567,238 are referred to.
GB32816/58A 1957-11-04 1958-10-14 Cationic aminoplast resins Expired GB866411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866411XA 1957-11-04 1957-11-04

Publications (1)

Publication Number Publication Date
GB866411A true GB866411A (en) 1961-04-26

Family

ID=22199901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32816/58A Expired GB866411A (en) 1957-11-04 1958-10-14 Cationic aminoplast resins

Country Status (1)

Country Link
GB (1) GB866411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823847A1 (en) * 1988-07-14 1990-01-18 Sueddeutsche Kalkstickstoff A process for de-inking printed waste paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823847A1 (en) * 1988-07-14 1990-01-18 Sueddeutsche Kalkstickstoff A process for de-inking printed waste paper

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