BE633862A - - Google Patents
Info
- Publication number
- BE633862A BE633862A BE633862DA BE633862A BE 633862 A BE633862 A BE 633862A BE 633862D A BE633862D A BE 633862DA BE 633862 A BE633862 A BE 633862A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1872—Preparation of compounds comprising a -N-C(O)-N-C(O)-N- moiety
-
- 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
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF37173A DE1165580B (en) | 1962-06-27 | 1962-06-27 | Process for the production of polyisocyanates with a biuret structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE633862A true BE633862A (en) |
Family
ID=7096769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE633862D BE633862A (en) | 1962-06-27 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE633862A (en) |
| DE (1) | DE1165580B (en) |
| GB (1) | GB1043672A (en) |
| NL (1) | NL294647A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2308015B2 (en) * | 1973-02-17 | 1980-07-31 | Bayer Ag, 5090 Leverkusen | Process for the production of polyisocyanates with a biuret structure |
| DE2856864A1 (en) | 1978-12-30 | 1980-07-24 | Bayer Ag | NEW POLYISOCYANATES, A METHOD FOR THE PRODUCTION AND THEIR USE |
| DE3007679A1 (en) | 1980-02-29 | 1981-09-10 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING POLYISOCYANATES WITH BIURET STRUCTURE |
| DE3403277A1 (en) * | 1984-01-31 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING POLYISOCYANATES WITH BIURET STRUCTURE |
| DE3403278A1 (en) * | 1984-01-31 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING POLYISOCYANATES WITH BIURET STRUCTURE |
| DE3742181A1 (en) * | 1987-12-12 | 1989-06-22 | Bayer Ag | PROCESS FOR PREPARING BIURET POLYISOCYANATES, THE COMPOUNDS OBTAINED BY THIS METHOD AND THEIR USE |
| CN115925580A (en) * | 2022-11-22 | 2023-04-07 | 宁夏瑞泰科技股份有限公司 | Method for recycling HDI rectification residues and biuret polyisocyanate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL238495A (en) * | 1958-04-24 |
-
0
- NL NL294647D patent/NL294647A/xx unknown
- BE BE633862D patent/BE633862A/xx unknown
-
1962
- 1962-06-27 DE DEF37173A patent/DE1165580B/en active Pending
-
1963
- 1963-06-21 GB GB2482263A patent/GB1043672A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL294647A (en) | |
| GB1043672A (en) | 1966-09-21 |
| DE1165580B (en) | 1964-03-19 |