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FR2135093A1 - Liq urea formaldehyde resins - having complete water solubility and stability - Google Patents

Liq urea formaldehyde resins - having complete water solubility and stability

Info

Publication number
FR2135093A1
FR2135093A1 FR7116401A FR7116401A FR2135093A1 FR 2135093 A1 FR2135093 A1 FR 2135093A1 FR 7116401 A FR7116401 A FR 7116401A FR 7116401 A FR7116401 A FR 7116401A FR 2135093 A1 FR2135093 A1 FR 2135093A1
Authority
FR
France
Prior art keywords
product
liq
stability
hcho
water solubility
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.)
Granted
Application number
FR7116401A
Other languages
French (fr)
Other versions
FR2135093B1 (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.)
NIZHNE TAGILSKY Z
Original Assignee
NIZHNE TAGILSKY Z
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 NIZHNE TAGILSKY Z filed Critical NIZHNE TAGILSKY Z
Priority to FR7116401A priority Critical patent/FR2135093A1/en
Publication of FR2135093A1 publication Critical patent/FR2135093A1/en
Application granted granted Critical
Publication of FR2135093B1 publication Critical patent/FR2135093B1/fr
Granted 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
    • C08G12/10—Condensation 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
    • C08G12/12—Ureas; 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

The resin, useful as binders and adhesivs, is prepd. by a process which comprises (1) condensing 1 mole urea with 1.5-4.0 moles HCHO at 60-102 degrees C. at a pH of 7.2-9.0, (2) reacting the low-molecular resinous condensation product with an org. acid of the formula:- R-SO3H (where R is alkyl or aryl) at pH 2.0-6.0 until a resinous tacky product is formed, (3) neutralising the product to pH 7.2-9.0, (4) concentrating the product by removing 0-90% water, (5) reacting the concd. product with HCHO in an amt. of 20-30% of that initially introduced at 60-102 degrees C. in a neutral medium until the content of free HCHO in the product reaches 4-7%, and (6) stabilising the cooled product with an alkaline agent.
FR7116401A 1971-05-06 1971-05-06 Liq urea formaldehyde resins - having complete water solubility and stability Granted FR2135093A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7116401A FR2135093A1 (en) 1971-05-06 1971-05-06 Liq urea formaldehyde resins - having complete water solubility and stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7116401A FR2135093A1 (en) 1971-05-06 1971-05-06 Liq urea formaldehyde resins - having complete water solubility and stability

Publications (2)

Publication Number Publication Date
FR2135093A1 true FR2135093A1 (en) 1972-12-15
FR2135093B1 FR2135093B1 (en) 1974-10-11

Family

ID=9076553

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7116401A Granted FR2135093A1 (en) 1971-05-06 1971-05-06 Liq urea formaldehyde resins - having complete water solubility and stability

Country Status (1)

Country Link
FR (1) FR2135093A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831528A1 (en) * 1978-07-18 1980-02-07 Kruglikov Carbamide-furan resin binder for foundry cores - prepd. from a urea!-formaldehyde! resin, urea and furyl alcohol

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831528A1 (en) * 1978-07-18 1980-02-07 Kruglikov Carbamide-furan resin binder for foundry cores - prepd. from a urea!-formaldehyde! resin, urea and furyl alcohol

Also Published As

Publication number Publication date
FR2135093B1 (en) 1974-10-11

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Legal Events

Date Code Title Description
ST Notification of lapse