BE835278A - Procede de preparation de polyisocyanates portant des groupes uret-dione - Google Patents
Procede de preparation de polyisocyanates portant des groupes uret-dioneInfo
- 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
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)
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 (es) |
JP (1) | JPS5170761A (es) |
BE (1) | BE835278A (es) |
DE (1) | DE2452390C2 (es) |
ES (1) | ES442309A1 (es) |
FR (1) | FR2290429A1 (es) |
GB (1) | GB1462589A (es) |
IT (1) | IT1052156B (es) |
NL (1) | NL7512865A (es) |
Families Citing this family (13)
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 |
DE2846814A1 (de) * | 1978-10-27 | 1980-05-08 | Bayer Ag | Suspensionen von isocyanat-destillationsrueckstaenden in polyolen |
DE2846815A1 (de) * | 1978-10-27 | 1980-05-08 | Ayer Ag | Verfahren zur aufarbeitung von isocyanat-destillationsrueckstaenden |
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 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2683144A (en) * | 1951-10-02 | 1954-07-06 | Du Pont | Polymerization of isocyanates |
-
1974
- 1974-11-05 DE DE2452390A patent/DE2452390C2/de not_active Expired
-
1975
- 1975-10-17 US US05/623,284 patent/US3993641A/en not_active Expired - Lifetime
- 1975-10-30 GB GB4490375A patent/GB1462589A/en not_active Expired
- 1975-11-03 NL NL7512865A patent/NL7512865A/xx not_active Application Discontinuation
- 1975-11-04 ES ES442309A patent/ES442309A1/es not_active Expired
- 1975-11-05 JP JP50132230A patent/JPS5170761A/ja active Pending
- 1975-11-05 FR FR7533856A patent/FR2290429A1/fr active Granted
- 1975-11-05 IT IT52073/75A patent/IT1052156B/it active
- 1975-11-05 BE BE161610A patent/BE835278A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1462589A (en) | 1977-01-26 |
IT1052156B (it) | 1981-06-20 |
FR2290429B1 (es) | 1980-02-15 |
DE2452390C2 (de) | 1983-12-29 |
ES442309A1 (es) | 1977-03-01 |
DE2452390A1 (de) | 1976-05-06 |
FR2290429A1 (fr) | 1976-06-04 |
JPS5170761A (es) | 1976-06-18 |
NL7512865A (nl) | 1976-05-07 |
US3993641A (en) | 1976-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: BAYER A.G. Effective date: 19881130 |