BE835278A - Procede de preparation de polyisocyanates portant des groupes uret-dione - Google Patents

Procede de preparation de polyisocyanates portant des groupes uret-dione

Info

Publication number
BE835278A
BE835278A BE161610A BE161610A BE835278A BE 835278 A BE835278 A BE 835278A BE 161610 A BE161610 A BE 161610A BE 161610 A BE161610 A BE 161610A BE 835278 A BE835278 A BE 835278A
Authority
BE
Belgium
Prior art keywords
uret
dione groups
preparing polyisocyanates
carrying
polyisocyanates carrying
Prior art date
Application number
BE161610A
Other languages
English (en)
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 filed Critical
Publication of BE835278A publication Critical patent/BE835278A/fr

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)
BE161610A 1974-11-05 1975-11-05 Procede de preparation de polyisocyanates portant des groupes uret-dione BE835278A (fr)

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
BE835278A true BE835278A (fr) 1976-05-05

Family

ID=5930053

Family Applications (1)

Application Number Title Priority Date Filing Date
BE161610A BE835278A (fr) 1974-11-05 1975-11-05 Procede de preparation de polyisocyanates portant des groupes uret-dione

Country Status (9)

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

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
US4522975A (en) * 1984-06-01 1985-06-11 Olin Corporation Select NCO-terminated, uretdione group-containing polyurethane prepolymers and lignocellulosic composite materials prepared therefrom
US4496684A (en) * 1984-06-01 1985-01-29 Olin Corporation Uretdione group-containing polyurethane oligomers and aqueous dispersions thereof
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
ATE510869T1 (de) 2009-04-09 2011-06-15 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
IT1052156B (it) 1981-06-20
US3993641A (en) 1976-11-23
DE2452390C2 (de) 1983-12-29
FR2290429B1 (fr) 1980-02-15
ES442309A1 (es) 1977-03-01
NL7512865A (nl) 1976-05-07
JPS5170761A (fr) 1976-06-18
FR2290429A1 (fr) 1976-06-04
GB1462589A (en) 1977-01-26
DE2452390A1 (de) 1976-05-06

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BAYER A.G.

Effective date: 19881130