GB1225450A - - Google Patents
Info
- Publication number
- GB1225450A GB1225450A GB1225450DA GB1225450A GB 1225450 A GB1225450 A GB 1225450A GB 1225450D A GB1225450D A GB 1225450DA GB 1225450 A GB1225450 A GB 1225450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- aminohydroxamic
- prepared
- acid
- volatile
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
1,225,450. Aliphatic diisocyanates. FARBENFABRIKEN BAYER A.G. 18 Dec., 1969 [7 Jan., 1969], No. 61662/69. Heading C2C. Aliphatic diisocyanates are prepared by reacting phosgene with salts of aliphatic aminohydroxamic acids with volatile acids, e.g. hydrochloric, hydrobromic, carbonic and sulphurous acids. Preferred aminohydroxamic acids are those of the formula where n is an integer from 4 to 17, e.g. 6-aminocaproichydroxamic acid as its hydrochloride. The aminohydroxamic acids may be prepared in situ by the ring opening of a cyclic lactam by the salt of hydroxylamine and a volatile acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691900514 DE1900514B2 (en) | 1969-01-07 | 1969-01-07 | PROCESS FOR THE PREPARATION OF ALIPHATIC DIISOCYANATES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225450A true GB1225450A (en) | 1971-03-17 |
Family
ID=5721824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1225450D Expired GB1225450A (en) | 1969-01-07 | 1969-12-18 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE744132A (en) |
| DE (1) | DE1900514B2 (en) |
| FR (1) | FR2027876A1 (en) |
| GB (1) | GB1225450A (en) |
| NL (1) | NL7000059A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8044166B2 (en) | 2006-08-01 | 2011-10-25 | Basf Aktiengesellschaft | Process for preparing pentamethylene 1,5-diisocyanate |
| US10173970B2 (en) | 2014-09-19 | 2019-01-08 | Covestro Deutschland Ag | Method for producing 1,5-pentanediisocyanate in the gas phase |
| US10428174B2 (en) | 2015-04-21 | 2019-10-01 | Covestro Deutschland Ag | Polyisocyanate mixture based on 1,5-diisocyanatopentane |
| WO2021167874A1 (en) | 2020-02-18 | 2021-08-26 | Covestro Llc | Polyoxazolidinone compositions |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271679A3 (en) * | 1986-11-03 | 1988-11-23 | American Cyanamid Company | Isocyanates derived from dienes and process and their preparation |
| CN107406573B (en) | 2015-03-16 | 2021-09-03 | 科思创德国股份有限公司 | Polyisocyanate composition based on 1, 5-pentamethylene diisocyanate |
| EP3660066A1 (en) | 2018-11-28 | 2020-06-03 | Covestro Deutschland AG | Polyisocyanate composition based on pentamethylendiisocyanate for coatings |
| CN114105825A (en) | 2020-08-27 | 2022-03-01 | 中国科学院过程工程研究所 | Preparation method of 1, 5-pentamethylene diisocyanate |
-
1969
- 1969-01-07 DE DE19691900514 patent/DE1900514B2/en active Pending
- 1969-12-18 GB GB1225450D patent/GB1225450A/en not_active Expired
-
1970
- 1970-01-05 NL NL7000059A patent/NL7000059A/xx unknown
- 1970-01-07 BE BE744132D patent/BE744132A/en unknown
- 1970-01-07 FR FR7000433A patent/FR2027876A1/fr not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8044166B2 (en) | 2006-08-01 | 2011-10-25 | Basf Aktiengesellschaft | Process for preparing pentamethylene 1,5-diisocyanate |
| EP2418198A1 (en) | 2006-08-01 | 2012-02-15 | Basf Se | Pentamethylene-1,5-diisocyanate |
| US10173970B2 (en) | 2014-09-19 | 2019-01-08 | Covestro Deutschland Ag | Method for producing 1,5-pentanediisocyanate in the gas phase |
| US10329248B2 (en) | 2014-09-19 | 2019-06-25 | Covestro Deutschland Ag | Method for producing 1,5-pentanediisocyanate in the gas phase |
| US10428174B2 (en) | 2015-04-21 | 2019-10-01 | Covestro Deutschland Ag | Polyisocyanate mixture based on 1,5-diisocyanatopentane |
| WO2021167874A1 (en) | 2020-02-18 | 2021-08-26 | Covestro Llc | Polyoxazolidinone compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1900514B2 (en) | 1976-08-26 |
| DE1900514A1 (en) | 1970-08-20 |
| FR2027876A1 (en) | 1970-10-02 |
| BE744132A (en) | 1970-06-15 |
| NL7000059A (en) | 1970-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |