FR2085992A1 - Purifying polyhydantoins free from pheno-lics - Google Patents

Purifying polyhydantoins free from pheno-lics

Info

Publication number
FR2085992A1
FR2085992A1 FR7112796A FR7112796A FR2085992A1 FR 2085992 A1 FR2085992 A1 FR 2085992A1 FR 7112796 A FR7112796 A FR 7112796A FR 7112796 A FR7112796 A FR 7112796A FR 2085992 A1 FR2085992 A1 FR 2085992A1
Authority
FR
France
Prior art keywords
polyhydantoins
lics
pheno
purifying
free
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.)
Withdrawn
Application number
FR7112796A
Other languages
French (fr)
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of FR2085992A1 publication Critical patent/FR2085992A1/en
Withdrawn legal-status Critical Current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
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/0605—Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0616—Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only two nitrogen atoms in the ring
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
    • C08G18/3821—Carboxylic acids; Esters thereof with monohydroxyl compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Solid polyhydantoins are recovered from their solutions in phenolic solvents by contacting the solutions with an aqueous alkaline liquid at 0-100 degrees C. Used in lacquers; process yields phenol and alkali free solid polyhydantoins.
FR7112796A 1970-04-10 1971-04-09 Purifying polyhydantoins free from pheno-lics Withdrawn FR2085992A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702017207 DE2017207A1 (en) 1970-04-10 1970-04-10 Process for the isolation of solid polyhydantoin plastics

Publications (1)

Publication Number Publication Date
FR2085992A1 true FR2085992A1 (en) 1971-12-31

Family

ID=5767701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7112796A Withdrawn FR2085992A1 (en) 1970-04-10 1971-04-09 Purifying polyhydantoins free from pheno-lics

Country Status (3)

Country Link
BE (1) BE765587A (en)
DE (1) DE2017207A1 (en)
FR (1) FR2085992A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905791A1 (en) * 1989-02-24 1990-09-06 Bayer Ag METHOD FOR PRODUCING POLYHYDANTOINS HAVING AMID GROUPS AND / OR IMID GROUPS
DE3913856A1 (en) * 1989-02-24 1990-08-30 Bayer Ag METHOD FOR PRODUCING THERMOPLASTICALLY PROCESSABLE POLYHYDANTOINES

Also Published As

Publication number Publication date
DE2017207A1 (en) 1971-10-21
BE765587A (en) 1971-08-30

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Legal Events

Date Code Title Description
RE Withdrawal of published application