IT1052156B - Procedimento per produrre poliisocianati presentanti gruppi ureto dionici - Google Patents

Procedimento per produrre poliisocianati presentanti gruppi ureto dionici

Info

Publication number
IT1052156B
IT1052156B IT52073/75A IT5207375A IT1052156B IT 1052156 B IT1052156 B IT 1052156B IT 52073/75 A IT52073/75 A IT 52073/75A IT 5207375 A IT5207375 A IT 5207375A IT 1052156 B IT1052156 B IT 1052156B
Authority
IT
Italy
Prior art keywords
ureto
dionic
procedure
groups
producing polyisocyanates
Prior art date
Application number
IT52073/75A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1052156B publication Critical patent/IT1052156B/it

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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D229/00—Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
IT52073/75A 1974-11-05 1975-11-05 Procedimento per produrre poliisocianati presentanti gruppi ureto dionici IT1052156B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2452390A DE2452390C2 (de) 1974-11-05 1974-11-05 Verfahren zur kontinuierlichen Herstellung von aromatischen Uretdiongruppen aufweisenden Polyisocyanaten

Publications (1)

Publication Number Publication Date
IT1052156B true IT1052156B (it) 1981-06-20

Family

ID=5930053

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52073/75A IT1052156B (it) 1974-11-05 1975-11-05 Procedimento per produrre poliisocianati presentanti gruppi ureto dionici

Country Status (9)

Country Link
US (1) US3993641A (it)
JP (1) JPS5170761A (it)
BE (1) BE835278A (it)
DE (1) DE2452390C2 (it)
ES (1) ES442309A1 (it)
FR (1) FR2290429A1 (it)
GB (1) GB1462589A (it)
IT (1) IT1052156B (it)
NL (1) NL7512865A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2524476A1 (de) * 1975-06-03 1976-12-23 Bayer Ag Aromatische uretdion-diisocyanat- disulfonsaeuren ein verfahren zu ihrer herstellung, sowie ihre verwendung
DE2846815A1 (de) * 1978-10-27 1980-05-08 Ayer Ag Verfahren zur aufarbeitung von isocyanat-destillationsrueckstaenden
DE2846814A1 (de) * 1978-10-27 1980-05-08 Bayer Ag Suspensionen von isocyanat-destillationsrueckstaenden in polyolen
DE3005106A1 (de) * 1980-02-12 1981-08-20 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen herstellung von uretdiongruppen aufweisenden polyisocyanaten und ihre verwendung als aufbaukoponente bei der herstellung von polyurethankunststoffen
DE3131779A1 (de) * 1981-08-12 1983-02-24 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von niedermolekularen 4,4'-diphenylmethan-uretdion-diisocyanaten
US4496684A (en) * 1984-06-01 1985-01-29 Olin Corporation Uretdione group-containing polyurethane oligomers and aqueous dispersions thereof
US4522975A (en) * 1984-06-01 1985-06-11 Olin Corporation Select NCO-terminated, uretdione group-containing polyurethane prepolymers and lignocellulosic composite materials prepared therefrom
DE3506834A1 (de) * 1985-02-27 1986-08-28 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von additionsverbindungen aus 1 mol dimerisiertem oder niedrig-oligodimerisiertem 4,4'-diisocyanatodiphenylmethan und 2 bis 3 mol 4,4'-diisocyanatodiphenylmethan, entsprechende additionsverbindungen und ihre verwendung zur polyurethanherstellung
DE3739549C2 (de) * 1987-11-21 1994-10-27 Huels Chemische Werke Ag Verfahren zur Herstellung (cyclo)aliphatischer Uretdione
DE4026705A1 (de) * 1990-08-24 1992-02-27 Bayer Ag Dimerisierungskatalysatoren, ein verfahren zu ihrer herstellung und ihre verwendung bei der herstellung von uretdion- und isocyanuratgruppen aufweisenden polyisocyanaten
US6624301B1 (en) * 1995-03-25 2003-09-23 Degussa Ag Process for the preparation of (cyclo)aliphatic uretdiones of improved color quality
DE10254878A1 (de) * 2002-11-25 2004-06-03 Bayer Ag Herstellung uretdiongruppenhaltiger Polyisocyanate
EP2159241B1 (de) 2009-04-09 2011-05-25 Isochem Kautschuk GmbH Verfahren zur Herstellung von oligomeren Diphenylmethan-4,4'- und/oder Diphenylmethan-2,4'-diisocyanat-uretdionen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683144A (en) * 1951-10-02 1954-07-06 Du Pont Polymerization of isocyanates

Also Published As

Publication number Publication date
GB1462589A (en) 1977-01-26
DE2452390C2 (de) 1983-12-29
FR2290429B1 (it) 1980-02-15
ES442309A1 (es) 1977-03-01
JPS5170761A (it) 1976-06-18
NL7512865A (nl) 1976-05-07
DE2452390A1 (de) 1976-05-06
BE835278A (fr) 1976-05-05
US3993641A (en) 1976-11-23
FR2290429A1 (fr) 1976-06-04

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